黔草4号鸭茅种子适宜收获期试验研究

The Test on Seed Suitable Harvest Time of Qiancao 4 Dactylis Glomerata

为探讨黔草4号鸭茅种子的最佳收获时期,试验研究了不同收获期对种子农艺性状和种子萌发特性的影响。结果表明：10月中旬播种,5月下旬收获种子的产量最高可达到31.3 kg/667 m^2,种子饱满度提高6.3-13.3个百分点,成熟度好,发芽势在60%以上,发芽率在85%以上,为贵州南部黔草4号鸭茅种子的最适合收获期。

In order to explore the best harvest time of Qiancao 4, research effect seed economical character and seed germination character on different harvest time. The result showed ： the highest seed yields reached 31.3 kg/667 m^2 when sow the seed in the middle of October and harvest in the bottom of May. The seed viability increased 6.3 - 13.3 percent, germinability more than 60%, germination percentage more than 85%, It was the best seed harvest time in the south area of Guizhou.