Author(s):

T Suresh Kumar, Ch. S Kishore Kumar, K Kaladhar Babu and D Manohar Prasad

Abstract: The experiment “Effect of cultural practices and chemicals on stress induction in sweet orange cv. Sathgudi for off season crop production” was conducted at Horticultural Research Station, Konda Mallepally in an existing sweet orange orchard on five year old trees. The experiment was laid out in ramdamozied block design with six treatments consisted of T1 – withholding of irrigation for 25 days, T2 - 15 day’s withholding of irrigation + Thiourea (0.5%), T3 - 15 days withholding of irrigation + Ethrel (50 ppm), T4 - 15 day’s withholding of irrigation + Urea (5%), T5 - 15 days withholding of irrigation + Salicylic acid (100 ppm), T6 - 15 days withholding of irrigation + KNO3 (3%). Data on vegetative growth, yield and quality differed significantly among the treatments. Plant height (4.94 m) canopy spread, East – West (4.77 m), number of fruits per tree (348.67), average fruit weight (191.67 g), yield (62.33 kg per plant) and TSS (9.06 ⁰Brix) were found significantly highest with treatment T1 when irrigation is withheld for 25 days during the months of August and September.

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