Cut Chrysanthemum- introduction and uses – varieties – media and environment- Fumigation - filed preparation - planting systems – nutrition and fertigation - weed management – training and pruning – special horticultural practices - role of growth regulators- physiological disorders and its control measures- harvest index and yield
Tuberose - introduction and uses – varieties - soil and climate and planting systems - weed, nutrition and irrigation management – special horticultural practices - role of growth regulators- harvest index and yield
Carnation- introduction and uses – varieties – media and environment- Fumigation - filed preparation - planting systems – nutrition and fertigation - weed management – training and pruning – special horticultural practices - role of growth regulators- physiological disorders and its control measures- harvest index and yield
Dutch rose - introduction and uses – varieties – media and environment- Fumigation - filed preparation - planting systems – nutrition and fertigation - weed management – training and pruning – special horticultural practices - role of growth regulators- physiological disorders and its control measures- harvest index and yield
Marigold - introduction and uses – varieties - soil and climate and planting systems - weed, nutrition and irrigation management –special horticultural practices - role of growth regulators- harvest index and yield
Crossandra - introduction and uses – varieties - soil and climate and planting systems - weed, nutrition and irrigation management –special horticultural practices - role of growth regulators- harvest index and yield
Gomphrena and Ixora - introduction and uses – varieties - soil and climate and planting systems - weed, nutrition and irrigation management – role of growth regulators- harvest index and yield
Jasmine- introduction and uses – varieties - soil and climate and planting systems - weed, nutrition and irrigation management – training and pruning – special horticultural practices - role of growth regulators- harvest index and yield
Tuberose - introduction and uses – varieties - soil and climate and planting systems - weed, nutrition and irrigation management – special horticultural practices - role of growth regulators- harvest index and yield
Carnation- introduction and uses – varieties – media and environment- Fumigation - filed preparation - planting systems – nutrition and fertigation - weed management – training and pruning – special horticultural practices - role of growth regulators- physiological disorders and its control measures- harvest index and yield
Dutch rose - introduction and uses – varieties – media and environment- Fumigation - filed preparation - planting systems – nutrition and fertigation - weed management – training and pruning – special horticultural practices - role of growth regulators- physiological disorders and its control measures- harvest index and yield
Marigold - introduction and uses – varieties - soil and climate and planting systems - weed, nutrition and irrigation management –special horticultural practices - role of growth regulators- harvest index and yield
Crossandra - introduction and uses – varieties - soil and climate and planting systems - weed, nutrition and irrigation management –special horticultural practices - role of growth regulators- harvest index and yield
Gomphrena and Ixora - introduction and uses – varieties - soil and climate and planting systems - weed, nutrition and irrigation management – role of growth regulators- harvest index and yield
Jasmine- introduction and uses – varieties - soil and climate and planting systems - weed, nutrition and irrigation management – training and pruning – special horticultural practices - role of growth regulators- harvest index and yield
Gerbera - introduction and uses – varieties – media and environment- Fumigation - filed preparation - planting systems – nutrition and fertigation - weed management – training and pruning – special horticultural practices - role of growth regulators- physiological disorders and its control measures- harvest index and yield
Barleria and celosia are the traditional under utilized flower crop therefore their information not most available in the books and other sources so we makes some effort for preparing presentation
Nerium and Celosia - introduction and uses – varieties - soil and climate and planting systems - weed, nutrition and irrigation management – training and pruning –role of growth regulators- harvest index and yield
Cultivation of marigold. production technology of marigold .Arvind Yadav
Genomic classification of marigold.African marigold(Tagetes erecta).CN- 2n=24.Family-Composity/Asteraceae. Origin ---Maxico and South america.
French marigold(Tagetes patula).CN-2n=48
.Family-composity/Asteraceae
.Origin-Maxico and South america
There are about 33 species of the genus tagetes. Some of important are fallows1-Tagetes erecta(African marigold)2-Tagetes ptula(French marigold ). Other important species1-Tagetes tenuifolia-(Bushy type, Less than 30cm)2-Tagetes lacera-(Grow upto 120-150cm in height)3-tagetes lemmonii(Glow upto 60-70cm height besrs small slowers)There are about 33 species of the genus tagetes. Some of important are fallows1-Tagetes erecta(African marigold)2-Tagetes ptula(French marigold ). Other important species1-Tagetes tenuifolia-(Bushy type, Less than 30cm)2-Tagetes lacera-(Grow upto 120-150cm in height)3-tagetes lemmonii(Glow upto 60-70cm height besrs small slowers)
Marigold – cultivation aspects and pigment extractionperumal king
The information about marigold cultivation, varietal description, pests and disease management and pigment extraction procedure is explained in detail.
Gerbera - introduction and uses – varieties – media and environment- Fumigation - filed preparation - planting systems – nutrition and fertigation - weed management – training and pruning – special horticultural practices - role of growth regulators- physiological disorders and its control measures- harvest index and yield
Barleria and celosia are the traditional under utilized flower crop therefore their information not most available in the books and other sources so we makes some effort for preparing presentation
Nerium and Celosia - introduction and uses – varieties - soil and climate and planting systems - weed, nutrition and irrigation management – training and pruning –role of growth regulators- harvest index and yield
Cultivation of marigold. production technology of marigold .Arvind Yadav
Genomic classification of marigold.African marigold(Tagetes erecta).CN- 2n=24.Family-Composity/Asteraceae. Origin ---Maxico and South america.
French marigold(Tagetes patula).CN-2n=48
.Family-composity/Asteraceae
.Origin-Maxico and South america
There are about 33 species of the genus tagetes. Some of important are fallows1-Tagetes erecta(African marigold)2-Tagetes ptula(French marigold ). Other important species1-Tagetes tenuifolia-(Bushy type, Less than 30cm)2-Tagetes lacera-(Grow upto 120-150cm in height)3-tagetes lemmonii(Glow upto 60-70cm height besrs small slowers)There are about 33 species of the genus tagetes. Some of important are fallows1-Tagetes erecta(African marigold)2-Tagetes ptula(French marigold ). Other important species1-Tagetes tenuifolia-(Bushy type, Less than 30cm)2-Tagetes lacera-(Grow upto 120-150cm in height)3-tagetes lemmonii(Glow upto 60-70cm height besrs small slowers)
Marigold – cultivation aspects and pigment extractionperumal king
The information about marigold cultivation, varietal description, pests and disease management and pigment extraction procedure is explained in detail.
Production technology of chrysanthemum
Protected cultivation HORTICULTURE practices
Scope and importance of chrysanthemum
Light and temperature management in chrysanthemum
Bird of paradise cultivation guide 2018Amar Sawant
Bird of paradise (Strelitzia reginae Ait.) is an evergreen perennial herbaceous plant and grown in the regions having a moderate subtropical climate. The brilliant colours and unusual appearance of the flowers have made it exceptionally popular as a cut flower.
Therefore, the Bird of paradise cultivated in many parts of the world to produce cut flowers for both domestic and international markets. The major producing countries of a bird of paradise on a commercial scale are America, Israel, and South Africa In temperate areas like Netherlands, Poland, China, Japan etc. this plant is being grown in greenhouses with heating facilities.
In India, Bird of Paradise is grown in sub-temperate and sub-tropical regions like Himachal Pradesh, Kalimpong and Darjeeling in West Bengal, Nilgiri hills and the Western Ghats, Bangalore and adjoining areas in Karnataka etc.
Radish is a popular vegetable in both tropical as well as temperate regions. It is cultivated under glass house conditions for early market, but large scale cultivation in the field is more I common. Being a quick growing crop it can be easily planted as a companion crop or intercrop between the rows of the other vegetables. It can also be planted on ridges, separating one plot from another. It is cultivated all over India, especially near the city markets. Radish originated probably in China. In India, it seems to have been cultivated from ancient times. It was popular among the ancient Egyptians and Greeks. The botanical name of radish is Raphanus sativus. The enlarged edible roots are fusiform and differ in colour from white to red.
seed production of Carrot (CSK HPKV) harmanjeet singhStudent
CONTENTS:
Introduction
Scientific Classification
Why Most Of Carrot In Orange Colour ???
Climate
Soil
Land Requirement
Seeds And Sowing
Sowing Time
Manures And Fertilization
Spacing
Carrot Varieties
Irrigation
Weed Control
Pollination Of Carrot
Isolation
Methods Of Seed Production
Plant Protection
Harvesting And Seed Yield
Seed Standards (%)
Hibiscus - introduction and uses – varieties - soil and climate and planting systems - weed, nutrition and irrigation management –special horticultural practices - role of growth regulators- harvest index and yield
Scented rose - introduction and uses – varieties - soil and climate and planting systems - weed, nutrition and irrigation management – training and pruning – special horticultural practices - role of growth regulators- harvest index and yield
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
How to Create Map Views in the Odoo 17 ERPCeline George
The map views are useful for providing a geographical representation of data. They allow users to visualize and analyze the data in a more intuitive manner.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
1. Cut Chrysanthemum- introduction and uses – varieties – media and
environment- Fumigation - filed preparation - planting systems –
nutrition and fertigation - weed management – training and pruning –
special horticultural practices - role of growth regulators- physiological
disorders and its control measures- harvest index and yield
Dr. M. Kumaresan
Assistant professor
Dept. of Horticulture
Adhiparasakthi Horticultural College
Lecture No.:14
2. Botanical name: Dendranthema grandiflora / Chrysanthemum sp.
Family: Asteraceae
Native: Europe and Asia
Popularly called as ‘Glory of East’/ ‘Queen of East’
Japan’s National Flower
Wide range of type, size and colour and also ‘forms’ are available
Varieties – > 500 cultivars are reported in India (world wide > 60,000)
Short day plant
INTRODUCTION
4. Commercial production centres in India
Karnataka - Bangalore, Kolar, Dharwad, Belgaum & Tumkur
Madhya Pradesh - Ratlam, Indore
Maharashtra - Ahmednagar, Pune & Nasik
Rajasthan - Udaipur, Ajmer, Jaipur & Kota
Bihar - Madhupur,
Haryana - Ambala, Gurgaon & Faridabad
Tamil Nadu - Salem, Shervroy hills, Ooty
5. C. coronarium
• Garland chrysanthemum.
• Winter flowering, yellow and white blooms
• Used for garland making
C. frutescens
• Marguerite and Paris daisy
• 60-90 cm tall, white and soft yellow flowers
• popular as pot plant
Species
6. C. japonicum
• Used as an ornamental plant
C. morifolium:
• Florists’ chrysanthemum
• Hybrid species result of repeated
cycles of interspecific crossing
Species
7. IIHR varieties
Arka Ravi
Arka Swarna
Ravikiran
Red Gold
Chandrika
Indira
Nilima
Panka
Rakhee
Kirti
Arka Ganga
Usha Kiran
Yellow Star
Arka Pink Star
Chandrakant
8. Arka Neelima
• It bears purple coloured decorative flowers
• Floriferous, good for cut flower and has a vase
life of 14 days
Arka Pink star
• Flowers are semi-double with pink colour
• Yield: 135.26 flowers/plant
• Use: For pot culture
• Important character: Dwarf, early flowering
Arka Indira
• Flower takes 90 days to flower
• Uses : Ideal for cut flower, potting, bedding, etc
9. Two radio mutants of chrysanthemum, Pusa Anmol with yellowish pink flowers (Gamma
ray induced mutant of cv. Ajay) and Pusa Centenary with yellow flowers (Gamma ray
induced mutant of cv. Thai Chen Queen) are developed and released by the Delhi
Government.
Pusa Anmol is photo and thermo- insensitive and therefore flowers thrice in a year (Oct-
Nov, Feb-Mar and May-Jun)
Pusa Anmol Pusa Centenary
IARI varieties
10. VARIETY DERIVED THROUGH COLOUR TYPE
Pusa Kesari Mutation Orange Semi-double
Flowers
Pusa Chitraksha Open Pollinated
seedling
Deep magenta Spray type
Pusa Arunodaya Mutation Pink coloured Semi-double
flowers
Pusa Aditya Open Pollinated
seedling
yellow in colour at the
periphery with orange
red colour in the
cente
Spray type
Pusa Sona Open Pollinated
seedling
Yellow colour Spray type
25. Colour Preference Varieties
White 35% White Regan, Cassa Cream, Polaries
Yellow 25% Sunshine, Yellow Spider, Yellow Regan
Pink 25% Pink Regan, Money maker
Red 10% Dark Flamence
Others 5% -
Colour and varieties preferred in World market
26. Purpose & flower
types suited
Varieties suitable
White group Yellow group Mauve group Red group
For exhibition
(Large flowered
types)
Beauty
Snow Ball
Innocence
Kasturba Gandhi
Evening Star
Super Giant
Peacock
Raja
Classic Beauty
Bravo
Diamond
Jubilee
Distinction
For pot culture
(Small flowered
types)
Mercury
Honey Comb
Rita
Rani
Archana
Indra
CO.1
MDU.1
Megami Mohini
Fantasy
CO.2
Red Gold Flirt
Jaya
For cut flowers
(Small flowered
types)
Birbal Sahni Baggi Jayanthi
Freedom
Sujata
Sharad Prabha
Ajay
Jaya Jubilee
Classification- (A) BASED ON USAGE
27. S. No. Floret types Hybrids / Varieties
1 Irregular incurve Snow Ball, Aruna
2 Regular incurve Bravo, Pink cloud
3 Reflexed Evening star, Alfred Wilson
4 Decorative Purnima, Peacock
5 Pompon Apsara, Birbal Sahani
6 Single
Semi-double
Rekha, Surya
Meera, Vasanthika
7 Anemone Vandana
8 Spoon Party time
9 Quill Golden Crystal, Snow Crystal
10 Spider Miss Universe, Nightingale
11 Brush Laura, Stella
12 Pin Cushion Malliga, Mayur
13 Unclassified
(B) BASED ON SIZE, SHAPE & FLORET TYPES
41. Based on the temperature sensitivity to flowering
i.Thermo-zero cultivars: Varieties which flower at any temperature
between 10-27oC and most consistently at 16oC
night temperature.
ii. Thermo-positive cultivars: a minimum of 16oC required for initiation
and at 27oC there will be rapid initiation
but delayed flowering.
iii. Thermo-negative cultivars: bud initiation occurs at low or high
temperature between 10oC and 27oC
but continuous high temperature delay bud
development.
The optimal temperature range for cultivating chrysanthemum is 16-25°C.
42. Based on duration
Early varieties : blooms in 90 days from final transplanting
Medium varieties : will take 100-110 days to bloom from
transplanting
Late varieties : requires more than 110 days to bloom from
transplanting
43. Soil preparation
Soil is ploughed, clods are broken to prepare the land to fine tilth and then leveled
Soil – Neutral or slightly acidic (pH – 6.5 to 7.0)
Media must be
Free from diseases and insects
Porous and well drained
Basalapplication
Organic/ compost
FYM
Neemcake
DAP
Superphosphate
MgSO4
= 300 – 400 g/m2
= 40g/m2
= 500g/m2
= 100g/m2
= 25g/m2
= 50g/m2
Soil EC level :1-1.5 is ideal
44. Fumigation/ Sterilization of soil
In India, it is only registered product as preplant soil sterilant, which controls nematodes,
weeds, soil borne fungi, bacteria and insects.
45. Width – 100 cm
Walking space - 40
cm
Bed height – 45 cm
Bed preparation
Plant spacing – 15 x 15 or 12 x 12 cm
46. Growing structure / systems
Relative humidity
Ideal RH : 70 to 90 % CO2: 600 - 900 ppm
47. Planting method
Propagating material - Terminal cuttings
Mother plant block
True to type cuttings imported from Holland, Malaysia and Uganda
Certified by Ministry of agriculture and Industries
Phytosanitory certificate
Leaf miner (Liriomyza trifolli)
White rust (Puccinia horiana)
Nematodes
Crown gall (Agrobacterium tumifaciens)
48. Cuttings of 5-7 cm length are taken from mother
plants are planted in Protrays
Cuttings dipped in 1000 ppm IBA solution
March to April month ideal for cutting
12-15 days for rooting - drenched with 0.1% of all
19
Ideal temperature for root development: 18-210c
pH: 6.8-7.5
On 16thday transplanted in growing area
13-14 th day after rooting
50. 15 days old rooted plants ready for planting
Rooted cuttings are planted at a spacing of 15 x
15 cm or 12 x 12 cm
51. Layout of drip and fertigation system
Daily hose irrigation – up to 1 week after planting
Later on applied through drip
Alternate day irrigation – from 2nd week onwards
8-9 l/m2/day
54. Sunlight
Red light
730nm
Darkness (slow)
Far red light (fast)
660nm
PFR builds up
Long-day
plants
VEGETATIVE
GROWTH
FLORIGEN
deactivated
PR builds up
Short-day
plants
FLORIGEN
Activated
FLOWERING
Chrysanthemum
55. The quality of the light
–
-
PR
Stable and inactive
660 nm
Short day conditions
Flowering
PFR
Instable and active
730 nm
Long day conditions
Vegetative growth
56. Chrysanthemum is a short day plant.
Early vegetative phase – long day period of uninterrupted darkness
Artificial lighting – Incandescent lights (HPS) using 150 watts bulb
Summer - 3 hours
Winter - 5 hours
Short day – 4th week onwards
Reaction time: time b/w starting
short day period to flowering
PHOTOPERIOD CONTROL
Temperature
Day - 20 – 280C
Night - 15 – 200C
Light - Critical day length Flower
initiation - 14 – 15 hours
Flower development - 13 -14 hours
57.
58. Special Horticultural practices
Pinching / stopping
Disbudding
Desuckering
Pinching / stopping
• To encourage lateral branches
• Bushy and healthy with more number of flowers
• 4 weeks after planting
• Only soft vegetative shoot tips 1.5 to 3 cm long are removed
• Known as stopping - useful to alter blooming time
• Pinching increases the number of flowering stems; it can indirectly control
flowering date and bloom quality
59. Disbudding
• Regular removal of lateral buds at their early stage of growth
• When too many buds develop – few buds removed; remaining buds allowed to
develop
Standard types : large apical bud retained, all axillary buds removed
Spray types : large apical bud removed, axillary buds
allowed to develop
Desuckering
The side shoots arising from the base must be removed
To divert all the energy to the flowering shoot
60. Support/staking
Spray and standard chrysanthemums may be as tall as 75 cm to 90 cm
it is necessary to support the stems as the crop matures
Various kinds of plastic mesh, strings, bamboo canes, etc. are used for plant support.
The nets are usually laid out in 4 or 5 layers.
Before planting, the first layer of net should be laid out.
The main frames can be made from 'L' angles or pipes.
The netting can be done with GI wire of 16 gauge for length-wise fixing
An increasing width of the meshes is used from bottom upwards. Generally, the
bottom net is 7.5 x 7,5 cm, the subsequent nets are 10 x10 cm, 12.5 x 12.5 cm and
the upper net 15 x 15 cm. As the plants grow, the second, third and fourth layers
can be put at 20 cm distance.
61. GA 3 at 50 ppm at 30, 45 & 60 DAP
Application of B9
Growth Regulator
– 5th week– 2500 ppm
– 6th week– 1500 ppm
Spraytype
Standardtype
62. Stages of harvest
1. Standard
Distant market – outer row of floret start unfurling
Local market – Half opened flower
2. Spray
Local market - Two flowers have opened others have shown
colour
Distant market - 50% flowers have shown colour
3. Loose flowers - Fully opened flowers
YIELD
Green house yield : 150-250 flowers stem/m2/year
63. Grade
Minimum flower diameter
(mm)
Minimum stem length (cm)
Blue 140 76
Red 121 76
Green 102 61
Grading of standard chrysanthemum by Society of
American Florists
Grading of chrysanthemum
64. Grade Stems per sleeve Specifications
Gold 10
6 flowers or more out and some more to
come
Silver 15 4-6 flowers out and some to come
Bronze 20 3 flowers out and some to come
Metric grade specification for spray cultivars
Grading of chrysanthemum
65. Post harvest handling methods
Pre-cooling
Flowers are conditioned for 16 hrs at 200C
Holding solution
10 to 15 days – under holding solution (citric acid 300 ppm + sucrose 1.5 %)
66. Chrysanthemum
Standards and spider mums can be wrapped individually
with thin wax paper or tissue paper to avoid bruising
Flowers are wrapped in plastic sleeves and packed in
fiberboard boxes
Standard chrysanthemums
• Packed in boxes measuring 91 x 43 x 15 cm
Spray chrysanthemums
• Packed in boxes measuring 80 x 50 x 23 cm
73. Physiological disorders
Crown Bud
Bud development is severely retarded and involucral bracts become glossy
enlarged
plants grown in long days after receiving a few short days produce crown
buds
Ca deficiency
Spray Ca(NO3)2 5 g/l at 10 days interval
Quilling of florets
Boron deficiency
Spray Borax @ 3g/l (or) 25 to 75 ppm
Bleaching of petals – cause bronze and pink coloured cultivars due to
high temperature during floral development
74. Delayed or no flower bud induction:
Due to too long photoperiods and low night temperature, Mn
and Cu deficiencies.
Application of manganese Sulphate (3 g/l) and Copper
Sulphate (1 g/l) at vegetative, bud initiation and flowering
stages control
Bleaching of petals:
Day temperature above 40°C and night below 15 °C.
Pink discolouration of white petals:
Low night temperature below 15°C.
75. Major pest and diseases
1. Rust (Puccinia horiana)
2. Powdery mildew (Oidium
chrysanthemi)
3. Verticilium wilt
4. Viral disease
1. Aphids
2. Red spider mites
3. Hairy caterpillars
4. Thrips
5. Leaf Miner
Diseases Pests
76. Major Diseases
Rust
CausedbyPuccinia horiana
Causes
HighRH(96 %to100 %)
Splashingofwater
Symptoms
Smallwhitetoyellowspots,upto4 mm wide,
ontheuppersurfaceofthe leaf.
Pustulesformontheundersideoftheleaf,
beneaththesmallspots.
Control
SprayAzoxystrobin@1ml/lor
77. Powdery Mildew
CausedbyOidiumchrysanthemi
Causes
Closely spaced plants with poor air
circulation and low light.
Symptoms
White powdery covering on stems and
leaves, occasionally on flowers.
Control
Effectively controlled with Sulphur fungicides or Captan 0.2 %
78. Symptoms
White patch on the leaf or petal White
patch a characteristic speckled
appearance
Biological control
A predatory mite - Amblyeius
cucumeris can be released
Chemical control
Spray Abamectin 0.5 ml/l
Major Pests
Thrips
79. Fungal coating of the leaves
known as sooty mould
Control
Spray Azardirachtin – 1000 ppm
Neem oil – 3 %
Aphids
80. Produces a relatively clean, white coloured mine, which is more linear
and often follows the leaf margin.
Leaf miners cause damage by puncturing the leaf surface to lay eggs
and to feed on the leaf tissue.
Leaf Miner
81. Feed voraciously on leaves, making holes and ragged edges until often only
the tattered leaf skeletons are left.
Caterpillar
82. Pale yellow spots on the upper surface of the leaves.
June to September – Severe infestation
Red spider mite
83. Chrysanthemum (Loose flower)
Introduction
• Known as Queen of the East, Autumn Queen and Guldaudi
• In US it is considered as the ‘Queen of the Fall Flowers’
• Origin: Northern hemisphere mainly Europe and Asia
• Family: Astraceae
• Botanical name: Chrysanthemum morifolium
• Mostly cultivated in the southern part of the country for loose flower
purpose for making garlands, veins and for religious offerings
• Yellow coloured flowers are preferred in South India, while red, purple,
yellow and white are preferred in North India
• It is commercially grown in Tamil Nadu, Karnataka, and Maharashtra
• Total area under chrysanthemum cultivation: 4000 ha
84. Ideal varieties for traditional flowers:
◦Punjab Anuradha,
◦Yellow Gold,
◦Dundi,
◦Marigold,
◦Mayur,
◦Pusa Centenary
85. Variety Origin Characteristics Picture
CO.1 Selection Canary yellow
Medium sized flowers
Flower yield 16.7 t/ha/main crop
Selection from Hosur type
MDU.1 Selection Yield: 30.59 t/ha/ main and ratoon crop
Sulphur yellow
Large attractive flowers
CO.2 Selection Purple Colour flowers
Selection from the variety Jaya from Lucknow
Flower yield 20.3 t/ha/main crop
TNAU VARIETIES
86. Climate:
Tropical and subtropical climatic conditions are ideal.
However, the best temperature for growing chrysanthemum is
20-280C for day and 15-200C for night.
Since chrysanthemum is a short day plant, planting should be
done such that flowering coincides with short day conditions.
Under Tamil Nadu conditions, it is planted during April-May
so that it flowers during September - December.
Soil:
Well drained red loamy soil with pH of 6.2 to 6. 7.
Fibrous root system – good drainage and aeration
87. i) Suckers
sucker separation - 5-6 green leaf stage
June - July
roots - cut back to 1.25 cm
basal leaves removed before planting
ii) Terminal cuttings
taken from healthy stock plants
length 5-7 cm
dipped - 1000ppm IBA or Seradix
placed in sand beds
semi shaded condition
Propagation
88. Planting
Spacing : 30 x 30 cm (1,10, 000 plants/ha)
Season : June - August
Water requirements
5-7 lit/sq m
EC less than 0.7
Nutrition
FYM : 25 t/ha
NPK : 50:160:80kg/ha
Basal : FYM + ½N + P + K
30 DAP : ½N
90. Removing the terminal growing portion along with a portion of stem is called
pinching
Done at 3rd and 5th week after planting
Pinching reduces the height but promotes axillary branching, delays flowering
and helps in breaking rosetting
Pinching
91. Two types of pinching are performed:
(a) Soft pinching: By this pinching the top soft tips of the shoot along with 2-3 open
leaves are removed
(b) Hard pinching: It means removing a longer portion upto hard shoot
92. Chemical pinching: Certain chemical preparations like UBI P293,
Emgard 2077 and Off-shoot '0' have been reported to be effective pinching agents
for chrysanthemum.
These chemicals contain certain alkyl esters which are responsible for selective
killing of the terminal buds
93. Disbudding:
• Removing unwanted flower buds is called disbudding.
• It is practised to reduce flower number, improve spray-form and to increase the
flower size
• Removal of excess flower buds is done 7 weeks after planting to improve the
flower size
94. De-suckering
During the vegetative growth phase, plants grow upward
New suckers continue to develop from base of plants
For proper and vigorous growth of plants, suckers are removed from time to
time
It is practiced to allow single stem to develop up to a certain height
Without de-suckering the main plant will loose vigour and becomes weak
Growth regulators
GA3 100 ppm can be sprayed 30, 45 and 60 DAP to increase the yield.
GA3 100 ppm + Ascorbic acid 100 ppm enhances spray length of
dwarf chry. varieries.
95. Harvest and Yield
Yield start from 3-4 months after planting.
Main crop duration 6 months.
Ratoon crop 4 months. Total duration (6+4) 10 months.
Yield : Main crop 9-10t/ha.
Ratoon crop 4-5 t/ha.
96. Crown bud
Bud development retarded
Severe – Pinkish bud, prevents
bud blooming
Involucral bracts – glossy &
enlarged
Plants grown in long after
receiving short days
Ca deficiency
Ca(NO3)2 @ 5 g/l
97. Quiling of florets
Peripheral flowers lose turgidity
Petals twisted –cup shaped
Night temp low - < 15 o c
B deficiency
Borax @ 3 g/l
Safe range - 25 to 75 ppm
98. Pink coloration in white petals
Low night temperature < 15 0 C
Bleaching of petals
• Temp ( > 40 0 C) & low night temperature
(Janakiram et al.,2001)
99. Delayed / no flower bud formation
Plants produce small leaves & shorter internodes
Delay in bud initiation / abort
Bud development completely arrested
Low night temperature
Long photoperiod
Holes in polyhouse
(Van Berke,1997)