ダイズシストセンチュウのふ化ならびに幼虫游出に及ぼす寄主・非寄主植物根滲出物の影響
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概要
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Soybean (Glycine Max MERRILL), kidney bean (Phaseolus vulgaris L.), adzuki bean (Phaseolus angularis WIGHT.) and wheat (Triticum vulgare VILL.) were tested to determine the potency of their root diffusates in stimulating the hatching of eggs and the larval emergence from cyst of the soybean cyst nematode, under laboratory conditions. Cysts and liberated eggs were incubated in Syracuse watch glasses at 25℃ containing a small volume of root leachings, soil leachings and diluted root secretions of these plants. The larvae that had hatched or emerged from cysts were counted every week for four or seven weeks. In general, a significantly great number of larvae was counted in leachings and root secretions of host plants, whereas there was no evidence of stimulating the hatching of eggs and larval emergence in non-host plant leachings and distilled water. The rate of hatching in kidney bean leaching was higher than those of soybean and adzuki bean, particularly evident at the earlier growth stage of these plants. From the results, it is concluded that hatching of the soybean cyst nematode is apparently stimulated by a substance which is liberated from roots of growing host plants into the root diffusate, whereas earlier workers failed to prove that the root diffusates of host plants stimulate the emergence of larvae from cyst. This series of experiments do not lead to the conclusion that there exists a substance stimulating the larval emergence of the soybean cyst nematode from cyst. Further investigations are being carried out in this direction.
- 日本応用動物昆虫学会の論文
- 1966-09-25
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関連論文
- ダイズシストセンチュウのふ化ならびに幼虫游出に及ぼす寄主・非寄主植物根滲出物の影響
- 日本産コメツキムシ科の幼虫の形態学的ならびに分類学的研究 : 大平仁夫著, B5版, 179ページ+61図版, 本文タイプ印刷。200部限定自費出版(岡崎市愛知学芸大学昆虫研究室・著者), 頒布価送料共1,000円。