摘要
倒伏是由内外因素引发的植株茎秆从自然直立状态到永久错位的现象,人们在倒伏对产量和品质的影响研究方面做了大量工作,并创立了许多评价方法。笔者从作物茎秆的化学成分与形态结构、力学原理和QTL定位等方面对抗倒伏的评价方法进行了总结:纤维素和木质素的含量多少与倒伏有紧密的联系;同时,作物的株高、茎节的长度、单茎的鲜重以及维管束的面积、密度、视野中的数量等许多形态显微结构与倒伏亦有关系;许多专家利用力学原理对多种作物的抗倒能力进行了实验,最后,对研究作物倒伏评价方法的研究方向进行了探讨。
Lodging in crops is defined as a permanent displacement of the clums from their upright position, People have carried out lots of research on which lodging influences yield and quality,and set up evaluation methods. The paper concluded evaluation methods of lodging resistance from chemical composition,microstructure,mechanics mechanism and QTL mapping in crops.there were closely correlation of cellulose and lignin to lodging,and there were correlation between lodging and plant height,length of inter-nodles,the fresh weight of single stem,the area and density of vascular bundle,the numbers of vascular bundle in a field of microscope;some people have done many mechanical experiments about lodging.Finally,the paper discussed the direction of evaluation methods of lodging resistance.
出处
《中国农学通报》
CSCD
2007年第5期203-206,共4页
Chinese Agricultural Science Bulletin
基金
2006年湖南省教育厅资助项目"不同甘蓝型油菜倒伏原因及抗倒性比较研究"(06D057)
关键词
作物
抗倒伏
评价方法
株型
Crops, Lodging resistance, Evaluation methods, Plant type
作者简介
刘唐兴，男，1968年出生，湖南新化人，副教授．主要从事作物栽培生理研究，参编国家级规划教材9万字．已发表学术论文6篇。通信地址；410127湖南省长沙市芙蓉区东湖湖南生物机电职业技术学院教务处。Tcl：0731-4637000，E-mail：1tx6590@163.com。
通讯作者：官春云．男，1938年出生，蒙古族．湖北荆州人，中国工程院院士，湖南农业大学教授，博士生导师。
