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Mechanisms of Resistance in Bitter Gourd Against Melon Fruit Fly (Paperback)
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Mechanisms of Resistance in Bitter Gourd Against Melon Fruit Fly (Paperback)
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The undertaken project consists of the field and lab experiments
which were carried out to investigate the biophysical and
biochemical basis of resistance in the fruits of bitter-gourd
plant. The field experiments included screening of 13 genotypes of
bitter-gourd and tolerance studies. The laboratory experiments
included the determination of biophysical and biochemical fruit
traits which induce antixenosis and antibiosis in bitter-gourd
against melon fruit fly. The fruit-length, fruit diameter, number
of ridges/cm2, depth of ribs, pericarp thickness and fruit
toughness were found to be most important biophysical fruit traits,
which contributed antixenosis in bitter-gourd against melon
fruit-fly. Similarly, quantity of ascorbic-acid, chlorophyll
(chlorophyll 'a', 'b' and total chlorophyll), reducing sugars,
total sugars, non-reducing sugars, nitrogen, protein, phosphorus,
potassium, tannin, flavonol, phenols, ash and silica played
paramount role in inducing biochemical based antixenosis and
antibiosis. The findings of endeavour persuade for the utilization
of identified sources of resistance in crop breeding program of
bitter-gourd against melon fruit fly.
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