摘要： 利用综合性状较好的5个光子材料作亲本,与17个优良毛子棉花新品种(系)组配19个光子杂交组合,研究具有光子标记性状杂交组合的产量杂种优势表现。结果表明:光子杂交组合皮棉产量表现正向中亲优势和正向超亲优势,籽棉产量光子作母本的杂交组合杂种优势高于光子作父本的杂交组合;衣分和单铃重表现正向中亲优势,单株铃数光子作母本的杂交组合优势率高于作光子父本的杂交组合;籽指表现负向中亲优势、负向超亲优势和负向竞争优势,筛选出产量竞争优势5%以上、综合性状突出的优势组合8个。

关键词: 光子, 产量, 杂种优势

Abstract: 19 tested naked seed cotton hybrid combinations were made to study the yield hybrid vigor by using 5 excellent synthetic performed naked seed cotton materials and 17 normal cotton varieties seed with fuzz as parents.The results show that the average mid -parent heterosis and over -parent heterosis of lint yield of tested naked seed cotton hybrid combinations is positive,hybrid vigor of tested hybrid combinations whose female parents are naked seed varieties is better than male parents in seed cotton yield and correlativity of bolls.The average mid -parent heterosis of lint percentage and single bill weight is positive.The average over -parent heterosis,over -parent heterosis and over -standard heterosis of seed index is negative.19 tested naked seed cotton hybrid combinations are screened out 8 excellent synthetic performed hybrid combinations whose average over - standard heterosis of yield properties are all above 5 %.

Key words: Nakedseed, Yield, Hybridvigor

中图分类号: 

• S565.03