Effect of salinity on pollen viability of different canola (Brassica napus L.) cultivars as reflected by the formation of fruits and seeds.

摘要

The effects of salinity on pollen viability, germination and yield were investigated on canola cultivars Dunkled, Canola-III, Oscar, Ganyou-5, Ganyou-2, Rainbow, Abasin-95 and Westar. Plants were irrigated with non-saline water or 0.2% (E.C 2.5 dS/m), 0.4% (E.C 4.5 dS/m) and 0.6% (6.5 dS/m) of sea salt concentrations. The vegetative and reproductive growth of the crop were proportionately inhibited with increasing salinity of irrigation water. Pollen viability and germination was adversely affected by saline water irrigation in all cultivars. Cultivars Oscar and Rainbow exhibited good performance in terms of pollen germination and yield in non-saline conditions and showed slow reduction in the values of the parameters measured at high salinity. Hence, these 2 cultivars could be graded as best cultivars with respect to the above mentioned parameters..