【摘要】 1979～1983年,作者于长沙进行水稻抗螟筛选鉴定研究。研究表明,多年表现具有抗性较稳定的品种有 B-辐 A、IR40等16个。这些品种有些具有叶鞘紧包,叶舌、叶耳紧贴、茎细硬、脉间窄等外部形态特征。致使蚁螟不易侵入,能侵入的幼虫体型小,发育缓慢,死亡率高,危害轻。更多还原

【Abstract】 In 1979～1983 the author has studied thousands of rice varieties as to their resistance to the striped rice borer Chilo suppressah’s(Walker)in Changsha,Hunan Province. Results showed that varieties appeared resistant for many years inc- lude 26 varieties:Hong-Mi-Dong-Zhan,B-FuA,IR40 etc.These varie- ties possess the following external morphological characters:Close-wrap- ping of leaf-sheath,closesticking of leaftongue and leaf ears,thin and hard stems,narrow nerve-intervals,etc.It was found that newly hat- ched larvae hardly infest such plants and those which do infest are smaller in size,lighter in weight and devolopment slow.Furthermore,their mortality is high and only slight damage is done.更多还原