从合系品种(系)的特性看云南粳稻的发展趋势  

To Calculate the Development Trend of Yunnan Japonica Rice Breeding According to the Charicters of Cooperation Line Varities

作　　者：肖卿[1] 周家武[1] 廖新华[1] 王建军[1] 张建华[1] 杨晓洪[1] 徐转[1] 

机构地区：[1]云南省农科院粳稻育种中心,昆明650205

出　　处：《云南大学学报（自然科学版）》1998年第S4期580-583,共4页Journal of Yunnan University(Natural Sciences Edition)

摘　　要：通过对１９８５—１９９５年云南省农科院中日合作课题新育成的４２个粳稻品种（系）农艺性状及适应性的分析表明，云南粳稻育成品种的发展中部地区与中北部地区基本一致，都表现为 １０００粒重增加、结实率提高、有效穗略有增加，最终使产量得以大大提高．合系品种（系）除高产外，还具有抗病、抗寒和优质等优点．今后云南的粳稻育种应向增加每穗实粒数、提高 １０００粒重并适当增加有效穗以提高产量、增强抗病、抗寒性．提高米质的方向发展．Agronomic character and adaptability of 42 Japanica rice varieties breeding by Sino-Japanese cooperative reseachers in 1985 -- 1995 years were analysed. The results showed that they have similar development trend at central-section and north-centralsection in Yunnan. Their GW and seed setting percentage add, effective spike numbers little, so that a final yield increase greatly. Besides high yield cooperation ling varieties also have advantage in terns of good-quality, blast-resistance and cold-tolerance. From now on, developmental direction of Yunnan Japanica rice breeding is to raise production by increasing filled kernels GW and a little effective spike numbers, to raise good-quality, to raise blast-resistance and coldtolerance.

关 键 词：粳稻品种 农艺性状 育种 

分 类 号：S511.2[农业科学—作物学]