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对豫玉27群体生理指标进行了研究,结果表明豫玉27叶片上冲,叶向值大,株型紧凑,群体内光分布较合理。叶面积系数和光合势稳定期长,衰减慢,叶片净同化率高,后期灌浆持续时间长,强度高,全株地上部于物质积累呈“S”型曲线,从吐丝授粉开始到授粉内25d干物质积累为最终生物产量的50.9％～53.4％。适宜种植密度为63000～69000株/hm~2。
The physiological indexes of Yuyu 27 population were studied. The results showed that leaves of Yuyu 27 were up-red with large value of leaf orientation and compact plant type. The light distribution in the population was reasonable. Leaf area coefficient and photosynthetic potential of long-term stability, slow decline, leaf net assimilation rate is high, the late grain filling long duration, high strength, the whole plant above the accumulation of material showed a “S” curve, starting from pollination to pollination 25d dry matter accumulation of 50.9% to 53.4% of the final biological yield. Suitable planting density of 63000 ~ 69000 plants / hm ~ 2.