生态学杂志2011，Vol.30Issue(3)：477-482,6.
贮藏条件对河西走廊四种旱生灌木种子萌发的影响
Effects of storage condition on seed germination of four xeromorphic shrub species from Hexi Corridor
摘要
Abstract
The seed germination responses of Lycium chinense , L. ruthenicum , Hedysarum scorpaium, and Nitraria sphaerocarpa from Hexi Corridor were examined after stored in a cold room ( -5 ℃ , moist) during winter, in a refrigerator (4 ℃ , moist) for 65 days, and at room temperature (20 ℃ , dry) for 6 months. The seeds of L. barbarum, L. ruthenicum, and H. scorpaium after stored moist at -5 ℃ and 4 ℃ had higher germination percentage and rate, and an earlier time to the onset of germination, compared with those stored dry at room temperature. The germination percentage of L. ruthenicum seeds was 80％ after stored moist in the cold room and in the refrigerator, and only 5％ after stored dry at room temperature. 88％ and 65％ of H. scorpaium seeds germinated after stored moist in the cold room and in the refrigerator, respectively, and 40％ of them germinated after stored dry at room temperature. L. barbarum seeds had a germination percentage of 68％ after stored moist in the cold room, but of less than 20％ after stored humid in the refrigerator and at room temperature. Storage condition had no significant effects on the seed germination of N. sphaerocarpa, and the maximum germination percentage in all storage treatments ranged from 18％ to 27％ . Therefore, cold stratification ( -5 ℃ and 4 ℃ ) could be an efficient method to break the seed dormancy for L. barbarum, L. ruthenicum, and H. scorpaium, but not for N. sphaerocarpa.关键词
旱生灌木/低温层积/种子萌发/休眠分类
农业科技引用本文复制引用
王桔红,陈文,张勇,张银霞..贮藏条件对河西走廊四种旱生灌木种子萌发的影响[J].生态学杂志,2011,30(3):477-482,6.基金项目
国家自然科学基金项目(31040009)、甘肃省自然科学基金项目(1010RJZG204)、甘肃省高校河西走廊特色资源利用省级重点实验室基金项目(XZ1013)和河西学院校长基金项目资助. （31040009）
