Effect of homobrassinolide on yield, quality and storage life in thompson seedless grape

A field trial was conducted to test the bioefficacy of homobrassinolide (combine) on three year old vines of Thompson seedless grafted on Dogridge rootstock. The treatments of combine alone and in combination with N-(2 chloro-4 pyridyl)-N-phenyl urea (CPPU) and benzyladenine (BA) alongwith gibberellic acid (GA₃) were given at 2-3 mm and 5-6 mm berry size stages. Considering the favourable effects on berry quality, bunch size and storability of Thompson seedless grapes, the treatment of 2 ppm CPPU + 35 ppm GA₃ at 2-3 mm berry size stage and 1 ppm combine + 50 ppm GA₃ at 5-6 mm berry size stage was adjudged as the best for producing export quality table grapes.