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首页> 外文期刊>Pakistan Journal of Botany >Effect of salicylic acid, KH2PO4 and K2HPO4 on the egg hatchability, adult emergence and population of Bemisia tabaci and cotton leaf curl virus severity.
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Effect of salicylic acid, KH2PO4 and K2HPO4 on the egg hatchability, adult emergence and population of Bemisia tabaci and cotton leaf curl virus severity.

机译：Effect of salicylic acid, KH2PO4 and K2HPO4 on the egg hatchability, adult emergence and population of Bemisia tabaci and cotton leaf curl virus severity.

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Salicylic acid, potassium dihydrogen phosphate (KH2PO4) and dipotassium hydrogen phosphate (K2HPO4) at 2 and 3 were drenched in pots in wooden cages covered with muslin cloth or applied as foliar sprays under field (Pakistan) conditions to cotton cultivars S-14 and NIAB-Krishma. B. tabaci collected from virus-infected plants were released on plants placed in wooden cages. Data on egg hatchability, adult emergence, adult whitefly population and cotton leaf curl virus (CLCuV) were recorded one day before spraying and at 24, 48 and 72 h after spraying. Seven samples from the treated and control plants of S-14 and NIAB-Krishma were collected, and their protein contents were estimated by Kjeldahl method. Salicylic acid at 3 was superior in reducing egg hatchability, adult emergence, adult whitefly population and severity of CLCuV, and in increasing the levels of thaumatin, beta -1,4-glucanase endo-1,3(4)- beta -glucanase and chitinase in S-14 and NIAB-Krishma. KH2PO4 and K2HPO4 applied at 3 also significantly reduced egg hatchability, adult emergence, whitefly population and CLCuV severity compared to the control.

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