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1. Presentation On
COURSE NO.-
FRSC-2.1.1
COURSE TITLE:
TROPICAL AND SUB TROPICAL FRUITS
By
AgriHORTICO’S WORLD

2. PINK BERRY
• Most commonly seen in Thompson seedless and Tas-A-Ganesh
• Few berries become pink during berry softening time and later turn
black after harvesting.
• Spraying a 0.2% Ascorbic acid and 0.25% Sodium diethyl
dithiocarbamate at fortnightly intervals prior to berry softening.

3. BLOSSOM END ROT
• Caused due to Calcium deficiency
• Can be controlled by the application of calcium nitrate

4. CHICKEN AND HEN DISORDER
• Caused due to Zinc and Boron deficiency
• It may be also due to failure of fertilization
• Shot berries reduced in size but of normal shape
• Can be controlled by applying zinc before flowering.

5. SHOT BERRY
• Presence of underdeveloped and undesirable berries in bunches of
grape.
• Mostly seen in varieties such as Perlette
• Dipping bunches at berry set stage in Ethephon@25ppm

6. WATER BERRY
• Flaccidness of berries in a bunch, which get wrinkled, withered ,soft
watery nature of berries are observed
• These berries lack sugars, flavour and keeping quality
• Cluster dipping in Pottasium sulphate and Calcium sulpahate @1% is
found more effective in reducing the problem

7. UNEVEN RIPENING
• Mainly seen in coloured varieties like Banglore blue,Beauty
seedless and gulabi
• Ripened bunches contain green coloured unripened berries
• Condition is due to non -availability of sufficient leaf area
• Application of growth regulators like Ethephon@250ppm help to
reduce the seriousness.

8. BUD AND FLOWER DROP
• Mostly seen in vigorous varieties like Thompson seedless, Pusa seedless,
Bhokri, Kishmish etc.
• Main reason attributed is a temporary water deficit in developing flower
cluster due to high rate of transpiration from developing leaves
• Application of GA(20 and 50ppm) or NAA(10ppm) to the vines.
BARRENNESS OF VINE
• Varieties such as Anab-e-shahi and Pusa seedless, becomes erratic after a few
years of good yields.
• Exact reason is not known
• Good management practices reduce the vegetative growth

9. CRACKING OF RACHIS
• Mostly seen in North India
• Caused due to Magnesium deficiency
• Can be controlled by application of Magnesium sulphate
POST HARVEST BERRY DROP
• Weak pedicel attachment to the berries in varieties like Anab-e-shahi,Cheema
Sahebi and Beauty seedless
• Spraying NAA @50ppm one week prior to harvesting
PREMATURE DEFOLIATION
• Caused due to ecophysiological reasons
• Application of antitranspirants and growth regulators can reduce the problem.

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