Abstract
Two plant growth regulators gibberellic acid (GA3) and 2,4-D were exogenously applied in different concentrations alone and their combinations on Blood Red sweet orange trees two months after fruit set. June fruit drop and different fruit quality parameters were studied to evaluate the optimum concentration of the growth regulators. Fruit drop was non significant among treatments with a range of 10.87 % to 33.82 %. Fruit diameter and seed health was not affected by any of the treatments. Fruit weight was decreased by most of the growth regulator treatments compared with control. Juice quantity, TSS, total sugars and reducing sugars were improved by most of the treatments compared with control but in case of acidity and vit. C, there was not any clear cut trend of treatment effect.

Basharat Ali Saleem, Aman Ullah Malik, Muhammad Farooq. (2007) Effect Of Exogenous Growth Regulators Application On June Fruit Drop And Fruit Quality In Citrus Sinensis Cv. Blood Red, , Volume-44, Issue-2.
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