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IBA和NAA对高加索三叶草种子萌发及根蘖生长的影响
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  • 英文篇名:Effect of IBA and NAA on Trifolium ambiguum seed germination and growth of creeping-root
  • 作者:张鸣宇 ; 任毅晓 ; 李旭 ; 孙博扬 ; 董小涵 ; 殷秀杰
  • 英文作者:ZHANG Mingyu;REN Yixiao;LI Xu;SUN Boyang;DONG Xiaohan;YIN Xiujie;Northeast Agricultural University;
  • 关键词:高加索三叶草 ; 萘乙酸 ; 吲哚丁酸 ; 植株生长 ; 碳水化合物
  • 英文关键词:Trifolium ambiguum;;IBA;;NAA;;plant growth;;carbohydrate
  • 中文刊名:CYKX
  • 英文刊名:Pratacultural Science
  • 机构:东北农业大学动物科学技术学院;
  • 出版日期:2019-01-15
  • 出版单位:草业科学
  • 年:2019
  • 期:v.36;No.306
  • 基金:黑龙江省自然基金面上项目(C2015019);; 黑龙江省博士后科研启动金(LBH-Q16022);; 青年科学基金项目(31802120)
  • 语种:中文;
  • 页:CYKX201901013
  • 页数:8
  • CN:01
  • ISSN:62-1069/S
  • 分类号:100-107
摘要
为研究外源激素对高加索三叶草(Trifolium ambiguum)种子萌发和根蘖生长发育的影响和生理作用,本研究设置吲哚丁酸(IBA)和萘乙酸(NAA)两种激素分别对高加索三叶草种子与根蘖进行处理。结果表明,1) NAA浸种处理可以有效提高高加索三叶草种子的发芽力,其中10 mg·L~(–1)的NAA处理效果最显著(P<0.05),发芽率由37%增长到55%,发芽势由38%增长到45%。IBA和NAA浸种均可以显著提高种子活力指数(P<0.05)。2) IBA和NAA处理均会对根蘖芽地上部分的生长有影响。2 000 mg·L~(–1)的IBA处理根蘖植株生长速率最高。1 000 mg·L~(–1)的NAA处理对叶片数量增长最多。3) 2 500 mg·L~(–1)和3 000 mg·L~(–1)的NAA浸泡处理均增加了植株中可溶性糖和淀粉的含量。
        In order to study the general and physiological effects of exogenous hormones on the seed germination and root and shoot growth of Caucasian clover(Trifolium ambiguum),two hormones,indole butyric acid(IBA) and 1-naphthaleneacetic acid(NAA),were used to treat the seeds and roots of Caucasian clover plants.The following results were obtained 1) NAA soaking treatment effectively enhanced the germination of Caucasian clover seeds,with a concentration of10 mg·L~(–1) having the most significant effect(P<0.05).The germination rate increased from 37% to 55%,and the germination power increased from 38% to 45%.IBA and NAA soaking also increased the seed vigor index to a level that was more than double that of the control.2) Both IBA and NAA treatment accelerated the growth of the aerial parts of root buds,with the effect of IBA being more pronounced.3) Soaking in 2 500 mg·L~(–1) and 3 000 mg·L~(–1) NAA increased the accumulation of soluble sugar and starch in plants.In summary,treatment with NAA at a concentration of 10 mg·L~(–1) is optimal for promoting the germination of Caucasian clover seeds,2 000 mg·L~(–1) IBA is the optimal concentration for promoting the rapid growth of the aerial parts of roots,and high concentrations of NAA are more effective for promoting the accumulation of non-structural carbohydrates in the root pods of Caucasian clover plants.
引文
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