Allelopathic effects of Bermuda grass (Cynodon dactylon L.) root exudates on seed germination and seedling growth of Tall fescue (Festuca arundinacea Schreb)

被引：8
|
作者：
Liang, Z. Y. [1 ,2 ]
Li, X. Y. [1 ,2 ]
Zhang, H. [1 ,2 ]
Li, J. [1 ,2 ]
Bian, X. J. [1 ]
Xu, J. C. [1 ,2 ]
机构：
[1] Beijing Forestry Univ, Coll Biol Sci & Technol, Natl Engn Lab Tree Breeding, Beijing 100083, Peoples R China
[2] Hebei Agr Univ, Coll Anim Sci & Technol, Baoding 071001, Hebei, Peoples R China
来源：
ALLELOPATHY JOURNAL | 2018年 / 44卷 / 01期
关键词：
Allelopathy; Bermuda grass; compounds; Cynodon dactylon; Festuca arundinacea; GCMS; mix-sowing; root exudates; seed germination; seedling growth; Tall Fescue; IDENTIFICATION; ALLELOCHEMICALS; RESISTANCE; DROUGHT; STRAW; RICE;
D O I：
10.26651/allelo.j./2018-44-1-1150
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
We studied the effects of Bermuda grass (Cynodon dactylon L.) 'Baoding' root exudates on seed germination, biomass and physiological elements of 6- Tall fescue (Festuca arundinacea) cultivars. GC-MS analysis detected 23 compounds in Bermuda grass 'Baoding' root exudates including esters (50.31%), alkanes (17.03%) etc. However of them, the compound 3-Phenylpropyl 4-methylbenzoate was in highest content (34.73%) followed by octadecanamide (13.81%). The root exudates of Bermuda grass 'Baoding' at 0.75 mg.ml(-1) concentration stimulated the Tall fescue cultivars, but 1.50 mg.ml(-1) concentration was inhibitory. Further, Bermuda grass 'Baoding' root exudates were cultivar and tissue specific to Tall fescue. The Tall fescue cultivar Justice displayed more sensitivity, while Greenlabel roots were more sensitive than shoots. Thus, mix-sowing of Bermuda grass with Tall fescue plants in proper proportion was suggested.
引用
收藏
页码：25 / 34
页数：10
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