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调查表明 ,华安 3号穗部性状表现为 :穗长与穗粒数、二次枝梗结实率与穗结实率呈极显著正相关 ;一次枝梗平均 13个 ,二次枝梗平均 38个 ,二者相关不明显 ;一次枝梗、二次枝梗着粒密度都较稳定 ,后者变幅较小。华安 3号灌浆特性表现为 :灌浆期约 40 d,灌浆强度最大的时间是始穗后 14- 2 1d,籽粒增重相对整齐。在灌浆期喷施 HM叶面肥能提高其结实率
The results showed that the panicle traits of Huaan No.3 showed that there was a significant positive correlation between the spike length and the number of spikelets per panicle, the seed setting rate of secondary branchlets and the rate of spikelets. The average number of primary branches and secondary branches was 38, The correlation between the two is not obvious; the primary branch and secondary branch have more stable grain density and the latter has smaller amplitude. The grain filling characteristics of Huaan No.3 showed that the grain filling period was about 40 days, and the grain filling time was 14- 21 days after the initiation of ear initiation. The grain weight gain was relatively neat. Spraying HM foliar fertilizer at grain filling stage can improve its seed setting rate