Genetic Gains and Genetic Correlations of Yield-related Traits in Pearl Millet after Two Cycles of Recurrent Selection

Japanese Journal of Crop Science

Tomohiko YOSHIDA¹  Nguyen Duy CAN¹  TOTOK Agung Dwi Haryanto¹ 

关键词: Genetic correlation;    遺伝獲得量;    Genetic gain;    遺伝相関;    Grain yield;    遺伝率;    Heritability;    子実収量;    Mass selection;    集団選抜;    Pearl millet;    循環選抜;    Recurrent selection;    トウジンビエ;   

DOI  :  10.1626/jcs.68.253

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

Two cycles of recurrent selection were applied on a pearl millet (Pennisetum typhoideum Rich.) population sown in late summer. The procedure increased not only the selected characters, grain weight and panicle numbers, but also non-selected characters such as plant height, top weight, harvest index and panicle length. Heritability estimated by the genetic gain of S2 population was 0.47 for number of panicles per plant, 0.67 for pancile weight, 0.47 for grain weight per panicle and 0.90 for grain yield per plant, showing that the further selection for grain yield might be possible. Genetic correlation between grain yield and yield-related traits was high, showing the effectiveness of indirect selection through these yield-related for high grain yield.

【 授权许可】

Unknown