首页 | 本学科首页   官方微博 | 高级检索  
     检索      

华南双季超级稻分蘖盛期理想形态性状研究
引用本文:陈友订,万邦惠,张旭.华南双季超级稻分蘖盛期理想形态性状研究[J].中国农业科学,2004,37(7):968-968.
作者姓名:陈友订  万邦惠  张旭
作者单位:1. 广东省农业科学院水稻研究所,广州,510640
2. 华南农业大学农学院,广州,510642
基金项目:国家“863”项目子专题资助项目(2001AA211191),广东省科技创新百项工程资助项目(2KB64804N),广东省自然科学基金资助项目(990501)
摘    要: 对华南稻区最新育成的超级杂交稻组合粤杂122、丰优428、泗优998、培杂67和超级常规稻品种广超3号、胜泰1号分蘖盛期早、晚不同季节的形态性状进行了研究。利用方差、通径、判别函数分析等统计方法,确定了华南双季超级稻分蘖盛期的理想形态性状量化指标,即,植株高度:早季55~60cm、晚季60~76cm;每蔸茎蘖数:早季15条左右、晚季14~19条;顶下1叶长:早季40~44cm、晚季42~60cm;顶下1叶宽:早季1.2~1.4cm、晚季1.2~1.3cm;顶下2叶长:早季39~44cm、晚季37~43cm;

关 键 词:华南双季超级稻  分蘖期  形态学

Studies on the Morphological Characteristics of South China Double Cropping Super Rice at the Active Tillering Stage
CHEN You-ding,WAN Bang-hui,ZHANG Xu.Studies on the Morphological Characteristics of South China Double Cropping Super Rice at the Active Tillering Stage[J].Scientia Agricultura Sinica,2004,37(7):968-968.
Authors:CHEN You-ding  WAN Bang-hui  ZHANG Xu
Institution:CHEN You-ding1,WAN Bang-hui2,ZHANG Xu1
Abstract:The morphological characteristics of the newly released super hybrid rice in South China, Yueza122, Fengyou428, Peiza67, and super conventional varieties, Guangchao 3, Shengtai 1 at the active tillering stage in both early and latecrops were investigated. Using the analysis of variance and other statistic methods, the ideal morphological characteristicsof South China double cropping super-rice at the active tillering stage were determined. The ideal plant height is 55-60 cmfor the early crop and 60-76 cm for the late crop. The ideal tiller number per plant is about 15 tillers for the early crop and 14-19 tillers for the late crop. The ideal length of the first leaf under the top leaf is 40-44 cm for the early crop and 42-60 cm forthe late crop. The ideal width of the first leaf under the top leaf is 1.2-1.4 cm for the early crop and 1.2-1.3 cm for the latecrop. The ideal length of the second leaf under the top leaf is 39-44 cm for the early crop and 37-43 cm for the late crop. Theideal width of the second leaf under the top leaf is 1.1-1.4 cm for the early crop and about 1.1 cm for the late crop. The idealtop leaf angle at the active tillering stage is 22-58 for the early crop and 4-12 for the late crop. Based on these results, anew concept of dynamic plant type structure for South China double cropping super rice breeding was suggested.
Keywords:South China double cropping super rice  Tillering stage  Morphology
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《中国农业科学》浏览原始摘要信息
点击此处可从《中国农业科学》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号