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以猎狗 5高羊茅为材料 ,研究了在施肥量相同的情况下不同的灌水量和灌水时间对高羊茅种子产量和质量的影响。结果表明 ,从返青到种子收获 ,灌 4次水 (返青期、拔节期、抽穗期和灌浆期灌水 ,每次灌水量为 90 0m3/hm2 )生殖枝 /m2 最高 ,小穗数 /生殖枝、小花数 /小穗、种子数 /小穗接近最高 ;潜在种子产量、表现种子产量和实际种子产量最高。在种子发育早期 (盛花期后 7d) ,灌 4次水种子标准发芽率最高 ,老化发芽率最高 ,种苗芽长最长 ,芽重最重。种子发育后期 ,不同的灌溉处理对高羊茅种子质量的影响不明显
In this study, the effects of different irrigation amount and irrigation time on the yield and quality of tall fescue were studied under the same fertilizer application. The results showed that the highest number of reproductive branches / m2, the number of spikelets / reproductive branch, the number of spikelets per plant, the number of spikelets per plant, The number of florets / spikelets, the number of seeds / spikelets were near the highest; the potential seed yield, the highest seed yield, and the actual seed yield were the highest. In the early stage of seed development (7 days after flowering stage), the highest germination rate, the highest germination rate, the longest germination bud length and the heaviest bud weight were the highest in the 4th seed water. In the later stage of seed development, the effect of different irrigation treatments on the quality of tall fescue seeds was not obvious