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Journal of Applied Horticulture. 2005: 7(2): 139-141

Effect of growth retardants on vegetative growth, yield and fruit quality of high density peach trees

Ratan Kumar; Rai, R M; Singh, R B; Pant, N

Horticultural Experiments and Training Centre, Chaubattia (Ranikhet), Almora - 263 651, Uttaranchal, India.

An experiment was conducted during 1999 and 2000 to evaluate the effects of foliar spraying with cycocel [chlormequat] (CCC; 500, 1000 and 1500 ppm) and cultar (paclobutrazol; 500, 1000 and 1500 ppm) on the growth, yield and fruit quality of peach cv. Paradelux growing in high-density orchards in Chaubattia, Uttaranchal, India. Cultar at 1500 ppm was most effective in reducing the plant height, extension growth and shoot internode length. Both cycocel at 1500 ppm and cultar at 1000 ppm increased the fruit number and yield, but had no significant effect on fruit weight. Fruit firmness increased under 1000 and 1500 ppm cultar treatment in the second year. However, total soluble solids and acidity were not affected by both growth retardants. Cultar at 1000 ppm was the best treatment in terms of controlling vegetative growth and fruiting of young peach trees.


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