摘要
为明确电导率与种子活力的关系,快速预测种子活力,以23个具有代表性的水稻品种为材料,在40℃、85%相对湿度条件下,分别老化0、14、28、42、56 d,共115个种子样本,形成了宽广的种子活力水平范围,研究电导率与种子活力之间的关系。结果表明,种子(带壳)浸泡液电导率大于糙米(去壳)浸泡液电导率。与种子浸泡液电导率相比,糙米浸泡液电导率与发芽率、发芽势和发芽指数间的关系更密切。然而,糙米浸泡液电导率与发芽率、发芽势和发芽指数间没有明显的函数关系,其线性回归模型R2分别为0.045 2、0.026 3、0.036 7,不宜用来预测种子活力。
To evaluate the relationship of electrical conductivity(EC)and seed vigor,23 representative rice varieties were artificially aged at 40℃and 85%relative humidity for 0,14,28,42 and 56 d,respectively,which generated seed samples with an extensive range of vigor level.The relationship between electrical conductivity and seed vigor were analyzed.The results showed that EC of seeds with hull were higher than those of seeds without hull.Compared with the EC of seeds with hull,the EC of seed without hull had a higher correlation with germination rate,germination energy and germination index.However,there was no significant regression relationship between the EC of seed without hull and germination rate,germination energy,germination index,which R2 were 0.0452,0.0263 and 0.0367,respectively.The seed vigor of rice could not be predicted by regression equation of seed vigor with the EC.
作者
曲宗普尺
毛光锋
吴敏
吴洪恺
CHU Zompur;MAO Guangfeng;WU Min;WU Hongkai(College of Advanced Agricultural Sciences,Zhejiang A&F University,Hangzhou 311300,China;Agriculture and Forestry Technology Extension Center of Xiaoshan District,Hangzhou 311200,China)
出处
《中国农业科技导报》
CAS
CSCD
北大核心
2023年第1期35-41,共7页
Journal of Agricultural Science and Technology
基金
浙江省农业新品种选育重大科技专项(2021C02063-6-5)
杭州市农业与社会发展科研主动设计项目(20190101A07)。
关键词
水稻
电导率
种子活力
发芽率
发芽势
发芽指数
rice(Oryza sativa L.)
electrical conductivity
seed vigor
germination rate
germination energy
germination index
