This document summarizes information about cloves, including their origin in Indonesia, major producing countries, and uses. Cloves are a medium-sized tree that is grown commercially in Sri Lanka. They thrive in tropical climates with ample rainfall and temperature between 20-30 degrees Celsius. Cloves are propagated through seeds and grown at a spacing of 20 feet by 20 feet. They are harvested when flower petals change color, yielding about 250 kg/ha on average. Buds are dried and can be stored for 1-2 years. Sri Lanka has standards for moisture content and purity levels for graded cloves.
Slides include production technology of loquat, its origin and distribution in Pakistan, plant description, environmental and cultural requirements etc..
This presentation is done by 2010/2011 batch of Export Agriculture students of Uva Wellassa University of Sri Lanka as a requirement for the subject which is “Fruit & Vegetable Cultivation”. Note that the information included here is relevant to Sri Lankan condition.
Slides include production technology of loquat, its origin and distribution in Pakistan, plant description, environmental and cultural requirements etc..
This presentation is done by 2010/2011 batch of Export Agriculture students of Uva Wellassa University of Sri Lanka as a requirement for the subject which is “Fruit & Vegetable Cultivation”. Note that the information included here is relevant to Sri Lankan condition.
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
This presentation is done by 2010/2011 batch of Export Agriculture students of Uva Wellassa University of Sri Lanka as a requirement for the subject which is “Rice & Field Crop Production”. Note that the information included here is relevant to Sri Lankan condition.
This presentation is done by 2010/2011 batch of Export Agriculture students of Uva Wellassa University of Sri Lanka as a requirement for the subject which is “Fruit & Vegetable Cultivation”. Note that the information included here is relevant to Sri Lankan condition.
CLOVE
Scientific Name : Syzygium aromaticum
Family : Myrtaceae
Chromosome number :- 22
Origin place :-Molluccas Island of Eastern Indonesia
The clove is one of the important tree spice crop grown in India.
The clove of commerce is the fully grown but unopened aromatic dried flower bud of an evergreen tree syzygium aromaticum.
The term 'clove' is derived from the French word 'cloy' and the English word 'clout', both meaning 'nail.The volatile oil obtained from the clove bud contains mainly (80-90%) and caryophyllene (4-8%).
Area and Production:-
In India the clove is cultivated in an area of 2,600 ha. with annual production of 1,160 tonnes. The productivity is 400 kg/ha.
Botany :-
The clove is an evergreen tree growing to a height of 7-15 m.
It begins to fork near the base, into two or three main erect branches. The smaller branches are semi-erect, the twigs are brittle, smooth and greyish-white in colour, and the whole head is bushy and dense.
The leaves are simple, opposite, exstipulate, glabrous and aromatic owing to plenty of oil glands on the lower surface. The new leaves appear in flushes and are bright pink.
The hermaphrodite flowers are borne on a terminal, corymbose, trichotomous panicle.
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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
This presentation is done by 2010/2011 batch of Export Agriculture students of Uva Wellassa University of Sri Lanka as a requirement for the subject which is “Rice & Field Crop Production”. Note that the information included here is relevant to Sri Lankan condition.
This presentation is done by 2010/2011 batch of Export Agriculture students of Uva Wellassa University of Sri Lanka as a requirement for the subject which is “Fruit & Vegetable Cultivation”. Note that the information included here is relevant to Sri Lankan condition.
CLOVE
Scientific Name : Syzygium aromaticum
Family : Myrtaceae
Chromosome number :- 22
Origin place :-Molluccas Island of Eastern Indonesia
The clove is one of the important tree spice crop grown in India.
The clove of commerce is the fully grown but unopened aromatic dried flower bud of an evergreen tree syzygium aromaticum.
The term 'clove' is derived from the French word 'cloy' and the English word 'clout', both meaning 'nail.The volatile oil obtained from the clove bud contains mainly (80-90%) and caryophyllene (4-8%).
Area and Production:-
In India the clove is cultivated in an area of 2,600 ha. with annual production of 1,160 tonnes. The productivity is 400 kg/ha.
Botany :-
The clove is an evergreen tree growing to a height of 7-15 m.
It begins to fork near the base, into two or three main erect branches. The smaller branches are semi-erect, the twigs are brittle, smooth and greyish-white in colour, and the whole head is bushy and dense.
The leaves are simple, opposite, exstipulate, glabrous and aromatic owing to plenty of oil glands on the lower surface. The new leaves appear in flushes and are bright pink.
The hermaphrodite flowers are borne on a terminal, corymbose, trichotomous panicle.
cultivation practices of garden peas along with processingManasa Chinnu
this deals with the study of cultivation practices along with processing technology of garden peas.i added more information regarding garden peas and other cultivation tactics which are dealed under PG and also useful for UG students aswell.
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2. Introduction
• Medium sized, symmetrically shaped tree with
smooth grey bark
• Originated in Maluku Islands in Indonesia
• Arab traders or Colonial rulers may have brought
the plant to the country
• First planted in Royal botanical garden, Peradeniya
• Fully grown trees are usually 15-20 m tall
4. Uses
• As dried whole buds
• Ground clove is used for curry mixtures
• Clove oil is used for
– flavoring foods
– Pharmaceutical &
– perfumery industries
• Whole or ground cloves provide flavor for both
– sweet and savory foods in pickling
– sauces and ketchups
5. Major growing areas
• Mid Country wet zone
– total extent of clove is 7618 ha.
• Kandy
• Kegalle
• Matale districts
6. Varieties
• No specific varieties have been identified.
• There are trees produce bigger size clove buds
which are called “Bothal Karabu”.
7. Climate
• Grown well in humid tropical climate
• Elevation - from sea level up to 1000 m
• Annual rainfall of 1750 – 2500 mm
• Annual average temperature should be 20 – 30 oC
without much seasonal and diurnal variation.
• Persistent strong winds are harmful.
• Shade is essential during the first two or three years
of growth.
• Thereafter, full exposure to light is beneficial
8. Soil
• Thrives in a variety of soils
• Deep loamy soil, rich in humus content are best
suited
• Grows satisfactorily on laterite soils
• Pure sandy soils are unsuitable
• Does not tolerate water logging
• Land should be well drained
9. Crop Establishment
Planting material
• Propagated through seeds
• Tree ripe fruits should be sown immediately
– viability of seeds is rapidly lost within 48 hours of
collection.
• Perforated polythene bags
– Size 10 cm Χ 20 cm or 25 cm Χ 40 cm
– Potting mixture (1:1:1) well decomposed FYM*,
top soil and coarse sand.
FYM* - farm yard manure
11. • Spacing - 20’x 20’
• Planting holes: 80 cm x 80 cm x 80 cm
• Plant density - 250 plants/ha
• Temporary shade for 2-3 years is necessary.
• Cover crops such as leguminous spp - as a soil
conservation measure
14. Crop Protection
• No serious pest and diseases have been reported in
Sri Lanka
Nursery
• Wilting of seedlings
– shade and watering
• Leaf spotting due to
– Pestalotia sp.
– Collectotrichum sp is fairly common during wet weather
– Copper containing fungicide is recommended
15. Harvesting
• Harvest indices
– when flower petals change their colour from
olive green to yellow pink
• Clusters of flowers are harvested together with the
stalks.
• Harvesting season – December to April
• Average yield - 250 kg/ha – dry
• Under good management conditions a yield of abut
850 kg/ha can be obtained.
16.
17.
18.
19. Processing
Flower buds
detached from
the stalks
Drying in sun or artificial
dryer until they become
dark brown and hard
Well dried good quality
cloves Golden brown
color
Poorly dried cloves are soft
and pale brown with a whitish
mealy appearance
“Khukers”
20.
21. Green clove buds – give about 30% dry cloves.
Safe storage MC - 8-10%
Can be stored in gunny bags without damage by fungus
and insects for 1 or 2 years.
22. Standard quality specifications
The specifications given by the SLSI.
Parameter Grade 1 Grade 2 Grade 3
Khuker cloves max. % by
mass.
3 5 10
Cloves below 10mm
length max % by mass
15 25 N.A
Extraneous matter max
% by mass
1 2 3
Moisture max. % by
mass
12 12 14