Analysis of Dry Matter Accumulation and Grouting Characteristics after Flag Leaf of Xinyan No.7 and Longyue 99
In order to investigate the leaf area decline,dry matter accumulation and grain filling characteristics of large panicle land arge-grain wheat varieties Xinyan No.7 and Longyue 99,and 20 above-ground parts of single stem were taken from the variety dis-play field every 8～9 days,and the leaf area and drying weight were measured.The single ear of flowering flowers on the same day was marked,and the middle 10 spikelets of 20 ears were peeled every 4～5 days,and the drying weight was measured after counting.The results showed that the single stem mass,dry matter accumulation and dry matter weight of Xinyan No.7 and Longyue 99 were higher than those of Jimai 22,the leaf senescence was slow,the functional period was long,the gradual and rapid increase stages and the maximum and average filling rate were higher than those of Jimai 22.It is indicated that Xinyan No.7 and Longyue 99 have the physiological basis of large spike and large grain,and the main stem into ear should be the main cultivation for high yield.
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万方数据
维普
