摘要
用4×3不完全双列杂交的甘蔗实生苗,以严冬后的宿极成活率代表抗寒性,它根发苗数代表宿根性.讨论了甘蔗实生苗的宿极性与抗寒性,结果表明:1甘蔗的抗寒性与其它农艺性状几乎不存在相关,而宿根性则与有效茎存在显著的正相关。2抗寒性、宿根性之间存在极显著的正相关,但两者间仍然有区别;宿根性的好坏取决于所含割手密的血缘比重.3抗寒性与宿极性在遗传上有着明显的差异,通过亲本选择与组合的选配来提高甘蔗品种的抗寒性、宿根性是可行的。
This paper discussed the cold-resistance and ratooning ability of Sugarcanethrough cane seedling by 4×3 incomplete diallel design. The rcsults showed tha t: a.The cold-resistance was not cotrelated with the other agtonomic characters and the ratooning ability was positively cortlated with stalk of sugarcane significantly, b.Therw were certain differences between cold-resistance and tatooning ability a though they were highly positively correlated. The ratooning ability of variety depends on the blood telationship of S spontaneum. c. The cold resistance and ratooning ability has some differences in heredity. lt can be improved and ineteased by parent selection and crosses.
出处
《甘蔗糖业》
1996年第6期13-17,共5页
Sugarcane and Canesugar
关键词
甘蔗
抗寒性
宿根性
配合力
育种
Sugarcane
Cold-resistance
Ratooning power
Combiningability