Mass Selection and Grain Yield of Improved Population in Pearl Millet (Pennisetum typhoideum Rich.)

[摘要] Mass selections for germination at low temperature, heavy grain weight and early heading were applied in a pearl millet population. Selection for short plant height was also applied by the ear-to-row method. Heritability estimated from the genetic gain were 0.26, 0.04 and 0.77 for germination, grain weight and heading, respectively, No genetic gain was obtained for plant height. Grain yield of original population (C0), population after one cycle of selection (C1) and two cycles of selection (C2) for early heading were compared, Yield was 371-511 gm-2 for May planting and 164-239 gm-2 for August planting. The population selected for early heading had more ears and a higher grain yield than C0. The difference between C1 and C2 was not significant. No significant interactions for traits studied between planting density and cycle of selections were detected.

[学科分类] 农业科学（综合）

[关键词] Genetic gain;遺伝獲得量;Genotype-environment interaction;遺伝子型対環境交互作用;Grain yield;改良集団;Improved population;集団選抜;Mass selection;収量