[1]张奇,张清旭,庞晓敏,等.稗草根系分泌物对水稻种子萌发和苗期生长的影响[J].亚热带农业研究,2020,16(01):8-15.[doi:10.13321/j.cnki.subtrop.agric.res.2020.01.002]
 ZHANG Qi,ZHANG Qingxu,PANG Xiaomin,et al.Effects of barnyard grass root exudate liquids on seed germination and seedling growth of rice[J].,2020,16(01):8-15.[doi:10.13321/j.cnki.subtrop.agric.res.2020.01.002]
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稗草根系分泌物对水稻种子萌发和苗期生长的影响()
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《亚热带农业研究》[ISSN:1006-6977/CN:61-1281/TN]

卷:
16
期数:
2020年01期
页码:
8-15
栏目:
出版日期:
2020-05-01

文章信息/Info

Title:
Effects of barnyard grass root exudate liquids on seed germination and seedling growth of rice
作者:
张奇12 张清旭2 庞晓敏12 叶江华12 王海斌23 贾小丽12 何海斌2
1. 武夷学院茶与食品学院, 福建 武夷山 354300;
2. 福建农林大学生命科学学院, 福建 福州 350002;
3. 龙岩学院生命科学学院, 福建 龙岩 364012
Author(s):
ZHANG Qi12 ZHANG Qingxu2 PANG Xiaomin12 YE Jianghua12 WANG Haibin23 JIA Xiaoli12 HE Haibin2
1. School of Tea and Food Science, Wuyi College, Wuyishan, Fujian 354300, China;
2. College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China;
3. College of Life Sciences, Longyan College, Longyan, Fujian 364012, China
关键词:
水稻化感稗草根系分泌物种子萌发幼苗
Keywords:
rice (Oryza sativa)allelopathybarnyard grass root exudatesseed germinationseedling stage
分类号:
S511.09
DOI:
10.13321/j.cnki.subtrop.agric.res.2020.01.002
摘要:
[目的] 探究稗草与水稻萌发及其苗期生长的内在联系。[方法] 利用不同浓度稗草根系分泌物处理不同化感潜力水稻的种子和幼苗,比较其对种子的萌发和苗期生长的影响。[结果] 稗草根系分泌物浓度对非化感水稻的24 h发芽势没有显著影响;低浓度稗草根系分泌物对化感水稻发芽势没有显著影响,但高浓度稗草根系分泌物会抑制24 h发芽势;稗草根系分泌物对2种水稻的发芽率均未见显著影响。低浓度稗草根系分泌物处理可促进不同化感潜力水稻根长和株高的生长,但高浓度对非化感水稻的根长和株高有抑制作用,而对化感水稻影响不显著。低浓度稗草根系分泌物处理可增加化感水稻的侧根数,但对非化感水稻作用并不显著。[结论] 不同化感潜力水稻在苗期能够识别稗草,为调控水稻苗期的生长与提高其在苗期的竞争优势提供依据。
Abstract:
[Purpose] To explore the intrinsic relationship between barnyard grass (Echinochloa crusgalli) and rice germination and seedling growth.[Method] The seeds and seedlings of rice with different allelopathic potentials were treated with different concentrations of barnyard grass root exudate liquid, and their effects on seed germination and growth of rice seedlings were compared.[Result] Concentration of barnyard grass root exudate liquid had was no significant effect on the 24 h germination potential of non-allelopathic rice. Low concentration of barnyard grass root exudate liquid had no significant effect on the 24 h germination potential of allelopathic rice, however, high concentration of barnyard grass root exudate liquid could inhibit the 24 h germination potential. Overall, the germination rate of the two kinds of rice was not affected. Liquid treatment of low-concentration barnyard grass root exudates could promote root length and plant height of rice with different allelopathic potentials, but high-concentration could inhibit root length and plant height of non-allelopathic rice without significant effect on allelopathic rice. Low-concentration barnyard grass root exudate treatment could increase the number of lateral roots of allelopathic rice, but it had no significant effect on non-allelopathic rice.[Conclusion] Rice with different allelopathic potentials can identify barnyard grass at the seedling stage, which provides a theoretical basis for regulating rice growth and increasing its competitive advantage at the seedling stage.

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备注/Memo

备注/Memo:
收稿日期:2019-02-06。
基金项目:国家自然科学基金项目(31370380,31070447);武夷学院引进人才科研启动项目(YJ201909);福建省教育厅中青年教师教育科研项目(JAT190786)资助。
作者简介:张奇(1989-),男,讲师,博士。研究方向:化学生态学。Email:1185458937@qq.com。
通讯作者:何海斌(1965-),男,教授,博士生导师,博士。研究方向:植物化学与化学生态学。Email:alexhhb@163.com。
更新日期/Last Update: 1900-01-01