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首页> 外文期刊>Indian Journal of Weed Science >Weedy rice: problems and its management
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Weedy rice: problems and its management

机译：杂草稻：问题及其管理

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摘要

Weedy rice belongs to the same genus and species as cultivated rice but with different forms. It appears as hybrid swarms due to introgression of genes between wild and cultivated species in nature. In Asian rice, it is known as Oryza saliva var. spontanea whereas in African context it is said as O. sativa var. stapfii. It grows faster; produces more tillers, panicles and biomass; makes better use of available N; shatters earlier; has better resistance to adverse conditions; and possesses longer dormancy in soil. Because of its high competitive ability, it becomes a serious threat to rice growers worldwide. Great morphological variability, similar growth behavior and high biological affinity with cultivated varieties make its control difficult. No single management technique can effectively control weedy rice. An appropriate combination of preventive, cultural, mechanical and chemical control measures is essential.
机译：杂草稻与栽培稻属于同一属和种，但形式不同。由于基因在自然界中的野生物种与耕种物种之间的渗入，它表现为杂种群。在亚洲大米中，它被称为Oryza saliva var。自发性，而在非洲语境中则称为O. sativa var。 stapfii。它增长更快;产生更多的分till，穗和生物量;更好地利用可用氮;早点破碎;对不利条件有更好的抵抗力;并且在土壤中具有更长的休眠时间由于其极高的竞争力，它已成为对全球稻米种植者的严重威胁。很大的形态变异性，相似的生长行为以及与栽培品种的高生物亲和力使其难以控制。没有单一的管理技术可以有效地控制杂草稻。预防，文化，机械和化学控制措施的适当组合至关重要。

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