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Ying Yong Sheng Tai Xue Bao

Title:		[Effects of intercropping Chinese onion cultivars of different allelopathic potential on cucumber growth and soil micro-environment]
Author(s):		Yang Y; Wu FZ;
Address:		"College of Horticulture, Northeast Agricultural University, Harbin 150030, China. yyang_311@yahoo.cn"
Journal Title:		Ying Yong Sheng Tai Xue Bao
Year:		2011
Volume:		22
Issue:		10
Page Number:		2627 - 2634
DOI:
ISSN/ISBN:		1001-9332 (Print) 1001-9332 (Linking)
Abstract:		"A pot experiment was conducted to study the effects of intercropping various Chinese onion cultivars of different allelopathic potential on the cucumber growth and rhizospheric soil environment. When intercropped with high allelopathic Chinese onion cultivars, the EC value and peroxidase activity of cucumber rhizospheric soil decreased, while the pH value, invertase and catalase activities, and bacterial community diversity increased. The cloning and sequencing results indicated that most DGGE bands amplified from cucumber rhizospheric soil samples showed a high homology to uncultured bacterial species. The common bands were affiliated with Actinobacteria and Proteobacteria, and the differential bacteria bands were affiliated with Proteobacteria and Anaerolineaceae. Rhodospirillales and Acidobacteria were only found in the cucumber rhizospheric soil intercropped with low allelopathic Chinese onion cultivars. Correlation analysis showed that there were significant positive correlations between rhizospheric soil urease activity and cucumber seedlings height, total dry biomass, leaf area, and DGGE band number. It was suggested that intercropping high allelopathic Chinese onion cultivars could establish a good rhizospheric soil micro-environment for cucumber growth, and promote the growth of cucumber seedlings markedly"
Keywords:		Agriculture/*methods Cucumis sativus/*growth & development Ecosystem Environment Onions/growth & development/*physiology Pheromones/*physiology *Rhizosphere Soil/analysis;
Notes:		"MedlineYang, Yang Wu, Feng-zhi chi Research Support, Non-U.S. Gov't China 2012/01/24 Ying Yong Sheng Tai Xue Bao. 2011 Oct; 22(10):2627-34"