【摘要】 针对我国目前许多牧草种子无统一的萌发检验方法和标准、检验无法可依的现状，研究了《国际种子检验规程》及我国《牧草种子检验规程》中均未包括的披碱草、苦卖菜、针茅、叉分蓼、羊柴等１２种植物种子的萌发检验标准化问题。以种子萌发率和发芽指数为指标，探讨了温度、光照及发芽床等因素对种子萌发的影响。温度设１５℃、２０℃、２５℃、３０℃恒温处理和１５～２５℃、２０～３０℃变温处理６个水平，光照设照光和黑暗２个水平，发芽床设纸上、纸间和砂中３个水平。试验选出了适合于各种种子萌发的最优组合，并根据种子在萌发时的发育特征，确定了种苗鉴定标准及初次和末次计数时间。更多还原

【Abstract】 ermination test is one of the most important aspects of seed testing. Standardized method in the test is a prerequist for achieving reliable and comparable results among different seed testing laboratories. In this research ,seeds of twelve herbage species,which were commonly found in China, but were not vet included in《International Seed Testing Rules》and in《Herbage Seed Testing Rules of People s Republic of China》were tested under different germination conditions.The conditions include six tempera-ture treatments(four constant temperatures and two alternating temperatures),twolight treatment (light and dark),and three germinating substance treatments(BetweenPaper BP,Top of Paper TP,and in Sand S).Seed germination performance(germina-tion percentage and germination index)and seedling developmental morphology were measuredunder the above mentioned conditions, Optimum germination conditions for seed germination were determined and seedling evaluation times and stsndards were pro-posed based on seed germination performances and seedling developmental morphologi-cal characteristics.更多还原