Effect of Planting Dates on the Seed Weight and Seed Yield of Various Varieties of Gram

摘要

Investigation was conducted at Northern part of Sindh Province, Dokri, to evaluate the productivity of gram varieties under different sowing date s during 1997-98. The treatments studied were five sowing date s; 15^th October, 30^th October, 15^th November, 30^th November and 15^th December and four varieties; DG-92, Chhola, DG-89 and Sanyasi. Results revealed highly significant influence on seed weight and seed yield due to planting dates and varieties. The maximum 1000 seed weight (224.83g) and seed yield (2320 kg ha ^-1) was recorded on 15^th November planted crop followed by 30^th October. Variety DG-92 responded higher 1000 seed weight (263.93g) and seed yield (2173.60 kg ha ^-1) followed by DG-89 and Chhola. Among the interactions, the data demonstrated highly significant influence for seed yield per hectare. However, the highest 1000 seed weight (274.33g) and seed yield (3333.33 kg ha ^-1) was recorded under the interaction of DG-92 x 15^th November. It is suggested that early sown DG-92 gram crop on 15^th November produces satisfactory seed yield compared to late sown crop during the month of December, thus, for the Northern part of Sindh, the gram cultivation should be performed up to the Mid-November.