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首页> 外文期刊>Agricultural sciences in China >Effects of Seed Maturity of Turf-Type Tall Fescue on the Seed Vigor and the Optimal Harvesting Time
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Effects of Seed Maturity of Turf-Type Tall Fescue on the Seed Vigor and the Optimal Harvesting Time

机译：草坪型高羊茅种子的成熟度对种子活力和最佳收获时间的影响

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摘要

By assay of accelerated aging germination, germination index, vigor index, seedling length, seedling weight, electric conductivity, dehydrogenase activity, ATP content and acid phosphoesterase activity during seed development of turf-type tall fescue, the seed vigor of tall fescue were studied. Combining with seed moisture content and yield, the optimal harvesting time of tall fescue was determined. The results indicated that the seed vigor increased continuously along with seed maturity, and the higher seed vigor was achieved at 19th day after perk anthesis and maintained continuously until 31st day after peak anthesis. At 25th day after peak anthesis, the highest yield of 3 533 kg ha~(-1) and the good quality of seeds of tall fescue were harvested with 32.19% moisture content. From 22nd to 31st day after peak anthesis, the seed yield of 3 300 kg ha~(-1) and the good quality seeds of tall fescue were harvested with 40 - 12.43% moisture content, and the span was the optimal harvesting time.
机译：通过加速老化发芽试验，研究了草皮型高羊茅种子发育过程中的发芽指数，活力指数，苗长，苗重，电导率，脱氢酶活性，ATP含量和酸性磷酸酯酶活性，研究了高羊茅种子的活力。结合种子含水量和产量，确定了高羊茅的最佳收获时间。结果表明，种子活力随着种子成熟度的增加而持续增加，较高的种子活力在花后第19天达到最高，并持续到花后第31天。在高峰期开花后第25天，收获的最高产量为3 533 kg ha〜（-1），且高羊茅种子的品质良好，水分含量为32.19％。花期高峰后第22天至第31天，收获3 300 kg ha〜（-1）的种子产量和高羊茅的优质种子，含水量为40-12.43％，跨度为最佳收获时间。

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