寒地早粳稻叶部性状与产量关系的研究  

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

作　　者：吕艳东[1] 郑桂萍[1] 冯永祥[1] 郭晓红[2] 张子军[1] 刁伟伟[1] 赵凤亮[1] 

机构地区：[1]黑龙江八一农垦大学植物科技学院,大庆163319 [2]东北林业大学林学院

出　　处：《黑龙江八一农垦大学学报》2008年第2期5-10,共6页journal of heilongjiang bayi agricultural university

基　　金：黑龙江省农垦总局科技计划项目(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,探讨了叶部性状与产量的关系。研究表明,随着产量水平的提高,各叶位叶片的长、宽均表现为减小的趋势;在一定范围之内减小剑叶、倒2叶叶基角,适当增加倒3叶叶基角有利于光能利用,提高群体生物量,从而提高产量,在育种选择时,选择剑叶叶基角、倒2叶叶基角的角度更为有效;在一定范围之内增加倒1、倒2叶鞘的长度,减小倒3叶鞘长度有利于产量的提高;保持足够的上三叶面积是获得高产、超高产的主要途径,对剑叶和倒2叶叶面积的选择也十分重要。在进行叶部性状综合评价时,倒二叶面积、单株上三叶面积、倒三叶叶基角和剑叶叶基角4个因子就足以代表17个叶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 leaf characters and output were discussed systematically. The main results were as follows： With the increasing of yield, the length and width of leaf showed a down tendency. In a restricted range, reducing angle between stem and flag leaf （ABSFL） and angle between stem and 2nd leaf from the top （ABS2LFT）, appropriately increasing angle between stem and 3rd leaf from the top （ABS3LFT） were favourable to use light energy, improving biomass of population and raising output. Moreover, choosing ABSFL and ABS2LFT was most effective. Increasing vaginal length of flag leaf and 2nd leaf from the top, reducing vaginal length of 3rd leaf from the top were in favor of raising output. Keeping enough top 3 leaf area （T3LA） was an important mean for high-yielding or super-high yielding. Especially, choosing flag leaf area and area of 2nd leaf from the top （A2LFT） was very important. A2LFT, T3LA per plant, ABS3LFT and ABSFL were enough to stand for the whole amount of information about seventeen leaf characters when making overall evaluation on leaf characters.

关 键 词：早粳稻 叶部性状 产量 

分 类 号：S511.01[农业科学—作物学]