三江源区青海草地早熟禾种子最佳收获期研究  

Study on Optimal Harvesting Time for Poa Pratensis cv. Qinghai seed in Dawu Area

作　　者：闵星星[1,2] 马玉寿[3] 李世雄[3] 王彦龙[3] 伊晨刚[3] 景美玲[1,2] 刘玉[1,2] 

机构地区：[1]青海省畜牧兽医科学院,西宁810003 [2]三江源区高寒草地生态省部共建教育部重点实验室,西宁810003 [3]青海大学研究生院,西宁810016

出　　处：《青海畜牧兽医杂志》2013年第5期1-3,共3页Chinese Qinghai Journal of Animal and Veterinary Sciences

基　　金：青海省科技支撑计划项目"青海草地早熟禾;冷地早熟禾原种良种扩繁技术研究与示范"(2012-N-138)

摘　　要：通过每隔7d测定种子产量、千粒重、发芽率等指标,对青海三江源区大武地区青海草地早熟禾种子田最佳收获期进行了研究。结果表明:9月4日(盛花期后第25d)收获的种子产量和千粒重最大,分别为35.8±1.5 g/m2,0.231g。9月18日(花后第39d)收获的种子发芽率最高,是74.3%。经综合分析和评价,确定8月27日至9月11日为最佳收获期。The optimal harvesting time of Poa pratensis L. cv. Qinghai pasture seed field was studied by determinating on seed yield, thousand - seed weight, germination rate every 7 days in Dawu Area of Qinghai Yellow River, Yangzi River and Laneang River Source Area. The result showed： on the September 4th（ at 25th day after peak anthesis） ,the harvested seed had the biggest yield and thousand - seed weight, and they were 35.8± 1.5g/m2 and 0.231g respectively . While on the September 18th（at 39th day after peak anthesis）, the seed had the biggest germination rate（74.3% ）. By analysing and assessing, August 27th to September 11st was determinated the optimal harvesting period.

关 键 词：大武地区 青海草地早熟禾 种子产量 最佳收获期 

分 类 号：S812.3[农业科学—草业科学]