A.K. Baswal, H.S. Rattanpal, Gurupkar Singh Sidhu and Gurteg Singh Uppal
Abstract
Assessment of pollen viability is an essential tool to check the level of sterility as it limits sexual hybridization. The percentage of viable pollen of five grapefruit cultivars was evaluated. The viability percentage values ranged from 30.50% for âMarsh Seedless to 41.75% for âRay Rubyâ. The âRay Rubyâ cultivar showed the highest percentage of viable pollen, while the lesser viable pollen was recorded in âMarsh Seedlessâ. The cultivars Ruby Red, Red Blush and Marsh Seedless showed the lowest percentage of viable pollen (37.0%, 36.50% and 30.50% respectively). Among flower characters, cultivar Marsh Seedless recorded highest flower diameter (36.83 mm), while Ray Ruby recorded highest flower length (25.86 mm). Petal length and petal width was recorded maximum in Marsh Seedless and Ray Ruby (18.99 mm and 8.42 mm, respectively).