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Competitive effects of cynodon dactylon, sorghum halepense and cyperus rotundus on cotton and mustard
Year:
1973
Source of publication :
Experimental Agriculture
Authors :
Horowitz, Menashe
;
.
Volume :
9
Co-Authors:
Horowitz, M., Division of Weed Research, Agricultural Research Organization, Newe Ya'ar Experiment Station, Haifa, Israel
Facilitators :
From page:
263
To page:
273
(
Total pages:
11
)
Abstract:
In a short-term competition experiment in large containers, growth of cotton planted 3 weeks after bermudagrass (Cynodon dactylon), johnsongrass (Sorghum halepense) or purple nutsedge (Cyperus rotundus), was severely reduced; after 10 weeks of competition, weedy cotton weighed only 15 per cent of the weed-free control. Cotton sown before weeds, or weeds planted before cotton, were only slightly affected by competition. Highly significant negative correlations were found between growth parameters of cotton and weeds. Inhibiting effects, and in some cases transitory stimulation, were produced on mustard seedlings by leachate from weed-infested soil and by extracts from subterranean weed parts, suggesting that the competitive effects of perennial weeds are due to nutrient depletion and to biologically active substances. © 1973, Cambridge University Press. All rights reserved.
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More details
DOI :
10.1017/S0014479700005792
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
31094
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:59
Scientific Publication
Competitive effects of cynodon dactylon, sorghum halepense and cyperus rotundus on cotton and mustard
9
Horowitz, M., Division of Weed Research, Agricultural Research Organization, Newe Ya'ar Experiment Station, Haifa, Israel
Competitive effects of cynodon dactylon, sorghum halepense and cyperus rotundus on cotton and mustard
In a short-term competition experiment in large containers, growth of cotton planted 3 weeks after bermudagrass (Cynodon dactylon), johnsongrass (Sorghum halepense) or purple nutsedge (Cyperus rotundus), was severely reduced; after 10 weeks of competition, weedy cotton weighed only 15 per cent of the weed-free control. Cotton sown before weeds, or weeds planted before cotton, were only slightly affected by competition. Highly significant negative correlations were found between growth parameters of cotton and weeds. Inhibiting effects, and in some cases transitory stimulation, were produced on mustard seedlings by leachate from weed-infested soil and by extracts from subterranean weed parts, suggesting that the competitive effects of perennial weeds are due to nutrient depletion and to biologically active substances. © 1973, Cambridge University Press. All rights reserved.
Scientific Publication
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