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HERO ID
3416659
Reference Type
Journal Article
Title
Effects of naturally and microbially decomposed cotton stalks on cotton seedling growth
Author(s)
Li, Y; Zhang, Q
Year
2016
Journal
Archives of Agronomy and Soil Science
ISSN:
0365-0340
EISSN:
1476-3567
Publisher
Taylor & Francis Ltd.
Location
Abingdon
Volume
62
Issue
9
Page Numbers
1264-1270
Language
English
DOI
10.1080/03650340.2015.1135327
Web of Science Id
WOS:000379038400006
URL
https://search.proquest.com/docview/1817828289?accountid=171501
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Abstract
Cotton stalk directly returning to cotton field has impeded the cotton growth to a large extent in Xinjiang province, China. The allelopathic effects of products from naturally and microbially decomposed cotton stalks on the cotton seedling growth were studied. The results showed that when the seedlings were treated with the 30-day microbially decomposed cotton stalks, they displayed better growth and physiological characteristics than those treated with the products of 30-day naturally decomposed cotton stalks. When treated with the microbially decomposed cotton stalks at a low concentration of 5 g kg−1, the seedling dry weight and plant height even increased significantly compared to the untreated control (P < 0.05). The gas chromatography–mass spectrometry analysis showed that two compounds, dibutyl phthalate (DBP) and diisobutyl phthalate (DIBP), were detected with higher concentrations in the naturally decomposed cotton stalk extracts, which strongly inhibited the cotton seedling growth in bioassay, suggesting the two compounds might be the responsible allelochemicals inducing autotoxicity to cotton growth.
Keywords
Cotton stalk; allelopathy; decomposed products; seedling growth; allelochemical
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IRIS
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Diisobutyl Phthalate (DIBP) Final
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