Effects of Seed Maturity of Turf—Type Tall Fescue on the Seed Vigor and the Optimal Harvesting Time

编号 zgly0000307647

文献类型 期刊论文

文献题名 Effects of Seed Maturity of Turf—Type Tall Fescue on the Seed Vigor and the Optimal Harvesting Time

学科分类 220.5010;园林植物学

作者 XURong 

作者单位 InstituteofGrasslandScience 

母体文献 Agricultural Sciences in China（中国农业科学：英文版） 

年卷期 2003,2(4)

页码 454-462

年份 2003 

分类号 S688.4 

关键词 种子活力  采种期  草坪草  种子萌发  种子产量  种子质量  Turf－Type－Tall－Fescue 

文摘内容 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 fter peak anthesis.At 25th day after peak anthesis,the highest yield of 3533 kg ha^-1 and the good auality of seeds of tall fescue were harvested with 32.19% moisture content.From 22nd to 31st day after peak anthesis,the seed yield of 3300kg 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。