Department of studies in Sericulture Science, University of Mysore, Manasagangothri, Mysore- 570006 Karnataka, India

Professor, Department of studies in Sericulture Science, University of Mysore, Manasagangothri, Mysore- 570006 Karnataka, India
Morus ,Mysore local ,Kajli ,Gibberellic acid ,Sex modification ,Leaf lobation ,

The Gibberellic acid showed more pronounced effects on the sex expression of female cultivars Mysore Local and Kajli. The height of treated plants was increased in GA 3 treated plants of both cultivars and the increase was proportionate to the increase in concentration. Both the cultivars produced good percentage of male catkins along with female catkins at 200 ppm GA3 treatment. The male flowers produced by the influence of GA3 in both the cultivars showed moderate pollen fertility. The leaf lobation varied from bud to bud and branch to branch. The percentage of 3 – 6 lobed, 2 – 3 lobed, unlobed and lobed leaves scored in plants treated with growth regulators. GA 3 treated plants of ML and Kajli showed maximum percentages of unlobed leaves.

4 , 5 , 2014