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1.小麦叶片、叶鞘的干重消长呈单峰曲綫变化;同一叶位的叶鞘,干重高峰出現較叶片迟,下降持续时間也較叶片长,“和尚麦”最后二叶鞘能延至籽粒成熟期。 2.剪除鞘叶的試驗証明,剪除的时期愈早,减低粒数、粒重愈多,叶片和叶鞘的叶位愈高,影响也愈大。 3.从叶片、叶鞘衰老时期的早晚、干重的消长变化,以及不同时期进行剪叶剪鞘所引起的籽粒生长变化都証明,同一叶位的叶片与叶鞘对籽粒形成的影响,先是叶片的作用較大,然后才是叶鞘的影响。
1. The dry weight loss of wheat leaves and leaf sheaths showed a single peak curve change; leaf sheath at the same leaf position, the dry weight peak appears later than the leaf, the duration of decline is also longer than the leaf, the last two leaf sheath of “Monk wheat” can delay grain ripening period. Shear removal of the sheath test proved that the earlier the cut off period to reduce the number of grains, the more weight, leaves and leaves the higher the leaf position, the greater the impact. From the leaves, leaf sheaths aging time sooner or later, changes in the growth and decline of dry weight, as well as the shearing at different stages of shearing caused by grain growth have proved the same leaf position of the leaf and sheath on the grain formation, the first leaf Greater effect, then the effect of leaf sheath.