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Cereal cyst nematode effects on wheat water use, and on root and shoot growth
Year:
1996
Source of publication :
Field Crops Research
Authors :
Amir, Jacob
;
.
Volume :
47
Co-Authors:
Amir, J.
Sinclair, T.R., USDA-ARS, Agronomy Physiology Laboratory, University of Florida, Gainesville, FL 32611-0840, United States
Facilitators :
From page:
13
To page:
19
(
Total pages:
7
)
Abstract:
Wheat (Triticum aestivum L.) is grown in many arid regions using fallow management whereby no crop is grown in alternate cropping seasons. Although fallowing is important in increasing the availability of water and nitrogen to crops in many environments, experiments in Israel revealed that water carryover from the fallow season for wheat production was rare. This paper examines the possibility that improved water use, and improved root and shoot growth, result from soil sanitation of cereal cyst nematode (CCN, Heterodera avenae Woll.) in the fallow season. Pot experiments in controlled environments revealed a dramatic, negative effect of various populations of CCN on wheat root growth. The decrease in root growth was associated with decreased shoot growth and decreased rates of transpiration. Mechanical pruning of roots mimicked the effects of CCN infestation indicating that root pruning is probably the primary damage of CCN. In the field, dry weight yields of wheat were maintained even in continuous wheat management when a soil biocide was used to control CCN. It is proposed that the success of the fallow management is based on the fact that CCN cysts hatch in wet soil during rainy periods of the fallow year but fail to produce a new generation of cysts because no host plants are present.
Note:
Related Files :
fallow management
Growth
Nematoda
Root growth
transpiration
Triticum aestivum
water use
wheat
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Related Content
More details
DOI :
10.1016/0378-4290(96)00008-1
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
31488
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 01:03
Scientific Publication
Cereal cyst nematode effects on wheat water use, and on root and shoot growth
47
Amir, J.
Sinclair, T.R., USDA-ARS, Agronomy Physiology Laboratory, University of Florida, Gainesville, FL 32611-0840, United States
Cereal cyst nematode effects on wheat water use, and on root and shoot growth
Wheat (Triticum aestivum L.) is grown in many arid regions using fallow management whereby no crop is grown in alternate cropping seasons. Although fallowing is important in increasing the availability of water and nitrogen to crops in many environments, experiments in Israel revealed that water carryover from the fallow season for wheat production was rare. This paper examines the possibility that improved water use, and improved root and shoot growth, result from soil sanitation of cereal cyst nematode (CCN, Heterodera avenae Woll.) in the fallow season. Pot experiments in controlled environments revealed a dramatic, negative effect of various populations of CCN on wheat root growth. The decrease in root growth was associated with decreased shoot growth and decreased rates of transpiration. Mechanical pruning of roots mimicked the effects of CCN infestation indicating that root pruning is probably the primary damage of CCN. In the field, dry weight yields of wheat were maintained even in continuous wheat management when a soil biocide was used to control CCN. It is proposed that the success of the fallow management is based on the fact that CCN cysts hatch in wet soil during rainy periods of the fallow year but fail to produce a new generation of cysts because no host plants are present.
Scientific Publication
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