| Allelopathy effects of aqueous extracts of Juglans regia on four crops |
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| DOI：10.7606/j.issn.1000-7601.2011.04.09 |
| Key Words: Juglans regia leaf aqueous extract crops allelopathy |
| Author Name | Affiliation | | WANG Bei | College of Forestry, Northwest A & F University, Yangling, Shaanxi 712100, China | | CAI Jing | College of Forestry, Northwest A & F University, Yangling, Shaanxi 712100, China
Qingling National Forest Ecosystem Research Station, Ningshan, Shaanxi 711600, China | | JIANG Zaimin | College of Life Sciences, Northwest A & F University, Yangling, Shaanxi 712100, China
Qingling National Forest Ecosystem Research Station, Ningshan, Shaanxi 711600, China | | ZHANG Yuanying | College of Science, Northwest A & F University, Yangling, Shaanxi 712100, China | | ZHANG Shuoxin | College of Forestry, Northwest A & F University, Yangling, Shaanxi 712100, China
Qingling National Forest Ecosystem Research Station, Ningshan, Shaanxi 711600, China |
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| Abstract: |
| Allelopathy effects of different concentrations of Juglans regia leaf extracts on the germination and seedling growth of corn (Zea mays), peanut (Arachis hypogae), garden pea (Pisum sativum) and pepper (Capsicum annum) were investigated. The results indicated that different concentrations of J. regia leaf aqueous extracts had various degrees inhib
ition on each test target of the four crops. The inhibition increased with the increasing concentration of extracts. Compared with the CK, they had significant inhibitory effects on the germination energy and root length. As the concentration of the extracts declined, the inhibition decreased, and the 0.025 g/mL leaf aqueous extract of J. regia even changed into stimulating effects, illustrated the double effects of concentration. According to the inhibition synthesis effect, pepper was the most sensitive receptor to the allelochemicals of J. regia leaf, the second were garden pea and corn,and peanut was the least sensitive receptor. |
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