麦种萌发后干燥控芽对种子重新发芽的影响

The Moisture Control to the Sprouting Seeds of Wheat and Barley and It's Effect to the Second Germination

选用扬 15 8等四个不同类型的小 (大 )麦品种 ,进行催芽后采用晾晒干燥的方法降低种子含水量进行控芽。结果表明 ,将发芽种子的含水量降至 3 0 %以下时种子发芽停止 ,但重新吸水发芽时随含水量降低发芽速度和发芽率均下降 ,而对成苗后幼苗素质没有不良影响。其中短期控芽将含水量降至 2 0 3 0

Four varieties of wheat and barley were selected in the study. Germination control by season was carried out to decrease th is water content after the process of accelerating germination. The result showed: The process of germination stopped while the water content dropped below 30%. But both the germination energy and germination percentage decreased when the seeds germination after the seed absorb the water again. And the effect to the young seedling quality was little. So the research suggest that the water content of sprouting seed should be decreased for 20% to 30%.