以青杄云杉新鲜花粉为试验材料，在含有蔗糖和硼酸的固体培养基上作生命力测定，结果表明：当培养基中蔗糖质量浓度为5％时，花粉萌发数量最多，生命力为95．9％，是质量浓度为20％的6．5倍，对高含量的蔗糖十分敏感。当培养基中硼酸质量浓度为0．03％时，花粉萌发数量最多，生命力为88．3％，较质量浓度为0．07％的生命力高出18．2个百分点；与蔗糖相比较，对硼酸含量表现得不十分敏感。%Fresh pollen of Picea wilsonii Mast.was taken as test material to measure vitality by using solid medium with sucrose and boric acid , it turned out that when sucrose concentration was 5%,there was the largest number of pollen germination , viability was 95 .9%, was 6.5 times than sucrose concentration of 5%, was sensitive to high levels of sucrose .when boric acid concentration was 0 .03%, there was the largest number of pollen germination , viability was 88.3%, was 18.2 percent point than boric acid concentration of 0.07%, was not very sensitive to boric acid .
展开▼
