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Position: Home > Articles > Reproduction and Distribution of Wild Water Chestnut (Eleocharis plantagineiformis) in Guizhou Guizhou Agricultural Sciences 2002,30 (1) 37-39

稻田恶性杂草野荸荠的生长发育及其在贵州的分布

作  者:
何永福;何占祥
单  位:
贵州省农业科学院植物保护研究所
关键词:
野荸荠;稻田杂草;生长发育;分布;贵州
摘  要:
野荸荠为区域性较强的稻田恶性杂草 ,在所调查的 2 2个县 (市 )中 ,以贵阳、湄潭、桐梓等地发生频率较大 ,为 88%~ 4 4% ,贵阳地区发生危害最重。野荸荠茎秆生长迅速 ,1m2内能产生茎秆数 1333.3株 ,重 16 71g;球茎繁殖力较强 ,1粒球茎在一个生长季节内能形成新球茎 10 9粒 ,平均每粒重 0 .986 2 g;野荸荠花序也能产生种子 ,每束花序内种子数 0~ 7粒不等 ,平均 2 .9粒
译  名:
Reproduction and Distribution of Wild Water Chestnut (Eleocharis plantagineiformis) in Guizhou
作  者:
HE Yong fu 1, HE Zhan xiang 2(1. Plant Protection Institute, Guizhou Academy of Agricultural Sciences, Guiyang 550006; 2. Guizhou Academy of Agricultural Sciences, Guiyang 550006, China)
关键词:
wild water chestnut; paddy weeds; reproduction; distribution; Guizhou
摘  要:
Wild water chestnut (Eleocharis plantagineiformis) is a regional wicked weed in paddy field. According to investigation in twenty two counties (or cities) of Guizhou, its frequency of occurrence is very high, amounting to 88%~44% in Guiyang, Meitan and Tongzi. Wild water chestnut grows speedily and its average number of total straws reaches 1 333.3, weighing 1 671 g per square metre. Its bulb has stronge reproductivity and each bulb of it can develop 109 new bulbs, weighting 0.9862 g in average within a growth season. Its flower head forms seeds averaging 2.9 seeds for each head.

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