Some cultural practices are required to keep these leaf sheaths active during ripening stage.
一些栽培技术要求在成熟期尽量保持叶鞘的活性。
Ovicidal trait in DH lines was phenotyped by necrotic symptoms on the leaf sheaths due to ovicidal response.
DH株系中的杀卵特性是通过叶鞘上杀卵反应产生的坏死症状表现的。
Plants with a mild phenotype formed normal leaf sheaths and blades, but lacked ligules and showed diffusion of the blade-sheath boundary.
轻度的植株能有正常的叶及叶鞘，但没有叶舌，叶与叶鞘的边界弥散。
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