不同干燥强度对多花黑麦草种子活力的影响

INFLUENCE OF DIFFERENT DRY STRENGTH ON SEED VIGOR OF LOLIUM MULTIFLORUM LAM

本项研究对花后１８天和花后２４天收获的种子进行了不同干燥温度，时间．方式的试验．结果表明：两个收获期的种子具有共同适宜的干燥温度为３５℃；花后１８天收获的种子与花后２４天收获的种子相比，前者较不耐热，日光晒种应避免４５℃以上高温，后者则改耐热，日光下晒种的种子活力与３５℃干燥后的种子活力间无显著差异．

The experiment of different temperature,time and method to dry seeds harvested on the date of 18 and 24 days after anthersis was conducted to determine the optimum dry strength for high yield and good qvality ed.Results from the test show that the optimum seed dry temperature is 35℃.Sced harvested on the date of 24 days after anthersis is more resistant to heat than that harvested on the date of 18 days after anthersis.The former being dryed in the sun has high seed vigor which is not significantly different from that dryed under 35℃ and it is benifitial for the later to avoid high temperature of sunburn to keep high seed vigor.