Influence of paclobutrazol and summer pruning on growth and vigour of apple cv. Red Delicious

Author: Naira Ashraf 1*, M. Y. Bhat 1, M. K. Sharma 1 and Moieza Ashraf 2
Received 4 January 2015, accepted 22 March 2015.
Abstract

Twenty-five years old apple trees cv. Red Delicious on seedling rootstock, uniform in vigour and health were selected during 2011 and 2012 at experimental orchard of Division of Fruit Science, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir, Shalimar, Srinagar (J & K) situated at between 34.01°N latitude and 79.89°E longitude at an elevation of 1685 m above mean sea level. The trees under investigation were subjected to foliar spray of paclobutrazol (250, 500 and 750 ppm), two timings of summer pruning (8 and 12 weeks after full bloom) and their combinations. The experiment was laid down in a randomized block design with 16 treatments and 3 replications. Results revealed that trees treated with 750 ppm paclobutrazol + summer pruning (I and II) resulted in minimum vegetative growth and vigour in terms of tree height, trunk diameter, annual shoot extension growth, tree spread and leaf area in comparison to control and other treatments during both years of study.

Journal: Food, Agriculture and Environment (JFAE)
Online ISSN: 1459-0263Year: 2015, Vol. 13, Issue 2, pages 98-100.Publisher: WFL.


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