寒地早粳稻秆部性状与产量关系的研究  

Study on Relationship Between Stem Characters and Output in Early Janopica Rice of Cold Region

作　　者：吕艳东[1,2] 郑桂萍[1] 刘梦红[3] 冯永祥[1] 郭晓红[1] 汪秀志[1] 陈温福[2] 

机构地区：[1]黑龙江八一农垦大学农学院,黑龙江大庆163319 [2]沈阳农业大学水稻研究所,辽宁沈阳110161 [3]黑龙江农垦科学院植物保护研究所,黑龙江佳木斯154007

出　　处：《种子》2010年第1期41-46,共6页Seed

基　　金：黑龙江省农垦总局科技攻关项目(HNKXIV-01-01-02)

摘　　要：针对寒地特殊的生态环境,以180份不同基因型早粳稻为材料,较系统地探讨了秆部性状与产量及产量构成因素之间的相互关系。研究表明:在节间长度配置上,在一定范围之内,控制倒3节间长度、增加倒1、倒2节间的长度有利于提高产量,并且对倒1、倒3节间长的选择是最为有效的。在节间粗度配置上,在保证倒1节间粗的基础上,增加其下部节间的粗度有利于高产。增加基因型的基部节间重、单位茎鞘长干重、单株干重是有利于高产的。适当增加株高和秆长来提高生物产量可能是今后水稻超高产育种的发展方向。在进行茎部性状综合评价时,基部节间重、倒2节间粗、单位秆长干重和穗颈节长4个因子就足以代表12个茎部性状的全部信息量。180 early janopica rice varieties （or lines） were studied in special ecological environment of cold region. The relations of the stem characters and output were discussed systematically. The main results were as follows ： In a restricted range, controlling length of 3 rd internode from the top, increasing length of 1 st and 2 nd internode from the top could raise yield and benefit for choosing length of I st and 3 rd internode from the top. In configuring internode thickness, increasing based internode thickness based on ensuring the thickness of 1 st internode from the top was beneficial to high-yielding. Adding dry weight of basal internode （ DWBI）, dry weight of pedicle sheath （ DWPS）, dry weight of per plant was in favor of high-yielding. Raising biomass by appropriately increasing plant height and pole length might be the direction of super-high rice breeding in the future. DWBI, thickness of 2 nd internode from the top, DWPS and length of panicle neck were enough to stand for the whole amount of information about twelve stem characters when making comprehensive evaluation on stem characters.

关 键 词：早粳稻 秆部性状 产量 

分 类 号：S511[农业科学—作物学]