江苏省稻田常见稗草的生物学特性-《江苏农业科学》

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Title:: Biological characteristics of common barnyard grass in paddy fields of Jiangsu Province

作者:: 张自常; 李永丰; 张彬; 王笑; 江苏省农业科学院植物保护研究所，江苏南京 210014

Author(s):: Zhang Zichang; et al

关键词:: 稗草; 生物学特性; 江苏省; 稻田

Keywords:: -

分类号:: A

DOI:: -

文献标志码:: S451

摘要:: 为探明江苏省危害较严重的稻田常见稗草生物学特性，以无芒稗、稗、西来稗和短芒稗为材料，采用人工移栽方式，研究分蘖动态、株高、叶面积和穗粒结构及生育期的差异。结果表明：随着生育进程的推进，各稗草种群的分蘖数逐渐增加，在移栽后前30 d，分蘖数无显著差异，但最终短芒稗分蘖数显著高于其他3个稗草种群；无芒稗、稗、西来稗株高分别比短芒稗增加6.18%、12.75%、27.22%，但差异不显著；无芒稗、稗和西来稗剑叶叶面积显著大于短芒稗；生育期表现为无芒稗＞西来稗＞稗＞短芒稗；无芒稗繁殖系数(每穗实粒数×有效分蘖数)和千粒重最高，短芒稗最低。说明较大的剑叶叶面积和粒重、较长的生育期以及较强的籽粒生产力是无芒稗、稗和西来稗严重危害水稻生产的重要原因之一。

Abstract:: -

参考文献/References:

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