摘要
不同种子处理和栽培因子对草麻黄Ephedrasinica种子成苗率影响的研究结果表明 :低温 ( <4℃ )层积处理 1 5d和 1 %CuSO4·5H2 O溶液浸种 1h后播种 ,2个处理后的种子平均成苗率均高于对照 ,且差异显著 ;盐碱度较低 (pH值为 8 0左右 ) ,有机质含量高的土壤适宜草麻黄种子萌发成苗 ;土壤绝对含水量对种子成苗的影响较大 ,含水量低于 2 4 34%时 ,草麻黄种子的成苗率随着土壤绝对含水量的升高而升高 ,适宜的土壤绝对含水量为 1 9%～ 2 4% ;草麻黄种子的成苗率随着温度的逐渐上升呈现S型曲线 ,当温度为 2 0～ 2 5℃时 。
Effects of different seed treatments and cultural factors on seedling survival of Ephedra sinica were researched in this paper. The results were shown that the ratios of seedling survival of both stratificated treatment under low temperature(<4 ℃)for 15 days and seed-soaking treatment with 1% CuSO_4·5H_2O solution for an hour were significantly higher than those of the controls,and the difference between the treatment and the control was significant,individually. The low saline-alkali soil (pH=8.0)with higher organic contents was beneficial to the seed germination and seedlings survival of Ephedra sinica. The absolute water content of soil made an importent difference to seedlings survival. The absolute water content of soil lower than 24.34%, the ratio of seedlings survival was higher with the increase of the absolute water content of soil, and the appropriate absolute water content of soil was from 19% to 24%. The changes of the ratio of seedlings survival were shown a S type curve, and with the temperature gradually increasing from 20℃ to 25℃,the seedlings survival of Ephedra sinica was increasely effective.
出处
《草业科学》
CAS
CSCD
2004年第8期26-29,共4页
Pratacultural Science
关键词
草麻黄
层积处理
浸种
栽培因子
成苗率
Ephedra sinica
Stratificated treatment
seed-soaking
cultural factors
Ratio of seedling survival
