2024 , Vol. 14 >Issue 4: 1 - 6
DOI: https://doi.org/10.11923/j.issn.2095-4050.cjas2023-0078
Allelopathic Effects of Water Extracts from Millet on Seed Germination and Seedling Growth of Giant Foxtail
Received date: 2023-03-23
Revised date: 2023-07-15
Online published: 2024-04-17
In order to explore the allelopathy between millet and giant foxtail growth, the effects of different concentrations of water extracts on foxtail millet seed germination and seedling growth were studied by using‘Jinxuan 6’and ‘Setaria viridis’ as experimental materials. The results showed that different concentrations of water extracts have‘low promotion and high inhibition’on seed germination and seedling growth. Compared with the control, the emergence rate was decreased by 13.888%, and the allelopathic index was -0.139 under the treatment of original solution. The comprehensive indexes of root length, bud length, fresh weight and dry weight were -0.070 and -0.034 under the treatment of original solution and 10 times diluted solution, which showed allelopathic inhibition, meanwhile the total length, leaf area, chlorophyll content and SOD of plant were lower than those of the control. The emergence rate was increased by 33.333% and 11.117% under the treatment of 50 and 100 times diluted solution, and the comprehensive indexes of root length, bud length, fresh weight and dry weight were 0.275 and 0.153, which showed allelopathic promotion. Among them, the 50 times diluted solution had the strongest promotion, the total length, leaf area, chlorophyll content and SOD of plant were significantly different from the control. The millet field is often accompanied by a large number of giant foxtail, the results will provide a theoretical basis for removing the giant foxtail at the seedling stage.
Key words: millet; water extract; giant foxtail; allelopathic effects; seed germination; seedling growth
ZHAO Na , LI Guoyu , LI Guoqing , CONG Xinjun . Allelopathic Effects of Water Extracts from Millet on Seed Germination and Seedling Growth of Giant Foxtail[J]. Journal of Agriculture, 2024 , 14(4) : 1 -6 . DOI: 10.11923/j.issn.2095-4050.cjas2023-0078
表1 谷子水浸液对谷莠子种子根芽生长的影响 |
处理 | 根长/cm | 根鲜重/mg | 根干重/mg | 芽长/cm | 芽鲜重/mg | 芽干重/mg |
---|---|---|---|---|---|---|
原液 | 3.047±0.131c | 0.170±0.026ab | 0.034±0.009b | 3.797±0.212a | 1.720±0.151b | 0.180±0.053ab |
稀释10倍 | 3.367±0.102bc | 0.193±0.012b | 0.034±0.005b | 3.637±0.031a | 1.707±0.084b | 0.191±0.011b |
稀释50倍 | 3.610±0.242ab | 0.300±0.090a | 0.073±0.020a | 3.867±0.119a | 2.667±0.630a | 0.311±0.075a |
稀释100倍 | 3.813±0.284a | 0.247±0.042ab | 0.052±0.007b | 3.867±0.298a | 2.190±0.182ab | 0.228±0.007b |
对照 | 3.357±0.280bc | 0.167±0.006b | 0.039±0.006b | 3.123±0.448b | 1.990±0.271b | 0.242±0.005ab |
表2 谷子水浸液对谷莠子根芽生长的化感综合效应 |
处理 | 化感指数RI | 化感综合效应SE | |||||
---|---|---|---|---|---|---|---|
根长 | 根鲜重 | 根干重 | 芽长 | 芽鲜重 | 芽干重 | ||
原液 | -0.092 | 0.018 | -0.128 | 0.178 | -0.136 | -0.256 | -0.070 |
稀释10倍 | 0.003 | 0.135 | -0.128 | 0.141 | -0.142 | -0.211 | -0.034 |
稀释50倍 | 0.070 | 0.443 | 0.466 | 0.192 | 0.254 | 0.222 | 0.275 |
稀释100倍 | 0.120 | 0.324 | 0.250 | 0.192 | 0.091 | -0.058 | 0.153 |
对照 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 |
表3 谷子水浸液对谷莠子幼苗植株全长、叶面积的影响 |
处理 | 植株全长/cm | 化感指数RI | 叶面积/cm2 | 化感指数RI |
---|---|---|---|---|
原液 | 21.933±1.733c | -0.122 | 3.833±0.085bc | -0.144 |
稀释10倍 | 24.063±0.190bc | -0.036 | 3.633±0.067c | -0.189 |
稀释50倍 | 28.463±1.315a | 0.123 | 5.333±0.762a | 0.161 |
稀释100倍 | 26.080±0.790ab | 0.042 | 4.537±0.202b | 0.013 |
对照 | 24.973±1.958b | 0.000 | 4.477±0.348b | 0.000 |
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