2024年3月29日 星期五
激素浸种对薄壳山核桃种子萌发的影响及其种子吸胀过程中SOD 和POD 活性变化
Effect of phytohormone soaking on seed germination of Carya illinoinensis and change in SOD and POD activities during its seed imbibition process
2016年 第25卷 第2期 页码[111-113]    下载全文[0.7MB]  
Abstract

By using L9 (33 ) orthogonal experimental design, effects of type, mass concentration and soaking time of phytohormones on seed germination of Carya illinoinensis (Wangenh.) K. Koch were studied, and changes in SOD and POD activities were analyzed during its seed imbibition process. The result of orthogonal experiment shows that compared with the control, soaking seed with different mass concentrations of IAA, GA3 and 6-BA at different times can improve germination rate and decrease rot rate of seeds. In which, phytohormone mass concentration has the greatest influence on germination rate, while seed soaking time has no significant effect on it. According to the experimental results, it is preliminarily determined that suitable soaking condition for seed germination of C. illinoinensis is soaking seeds for 3 d with 200 mg·L-1GA3 . In addition, SOD and POD activities increase obviously during seed imbibition process, in which, SOD activity appears the trend of first increasing and then decreasing, while POD activity increases continuously.

关键词薄壳山核桃; 激素质量浓度; 浸种条件; 发芽率; 种子吸胀; 酶活性
Key wordsCarya illinoinensis ( Wangenh.) K. Koch; phytohormone mass concentration; seed soaking condition;
作者李小飞, 邓秋菊, 曹凡, 梁有旺, 张瑞, 何海洋, 苏文川, 彭方仁
所在单位南京林业大学林学院, 江苏南京210037
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基金项目国家林业公益性行业科研专项(201304711); 江苏省林业三新工程项目也Lysx2014(047)页; 江苏高校优势学科建设工程资助项目