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אסיף מאגר המחקר החקלאי
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Contribution of nitrogen fixed by Azospirillum to the n nutrition of spring wheat in Israel
Year:
1985
Source of publication :
Soil Biology and Biochemistry
Authors :
Kapulnik, Yoram
;
.
Volume :
17
Co-Authors:
Kapulnik, Y., Department of Plant Pathology and Microbiology, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, 76 100, Israel
Feldman, M., Department of Plant Genetics, The Weizmann Institute of Science, Rehovot, 76 100, Israel
Okon, Y., Department of Plant Pathology and Microbiology, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, 76 100, Israel
Henis, Y., Department of Plant Pathology and Microbiology, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, 76 100, Israel
Facilitators :
From page:
509
To page:
515
(
Total pages:
7
)
Abstract:
Acetylene reduction activity (ARA) was measured in cores containing roots of various Israeli wild and cultivated wheat lines colonized by Azospirillum. The inoculated plants were grown under greenhouse or field conditions. Although, no measurable ARA was detected during earlier stages of wheat development, 50-600 nmol C2H4 g-1 dry root h-1 was measured during heading and flowering stages. By using N yield balance and 15N dilution techniques, it was found that Triticum aestivum cv. Miriam inoculated with Azospirillum accumulated 20% more N (14N and 15N) at the booting stage than did the uninoculated control. This difference in N content became less apparent in grains. No significant 15N dilution could be found and the contribution of atmospheric N2 to the N content of grains of inoculated plants was negligible. It was concluded that the potential contribution of biological N2 fixation to spring wheat cultivation in Israel is very low. © 1985.
Note:
Related Files :
Azospirillum brasilense
Triticum aestivum
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Related Content
More details
DOI :
10.1016/0038-0717(85)90018-5
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
30496
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:55
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Scientific Publication
Contribution of nitrogen fixed by Azospirillum to the n nutrition of spring wheat in Israel
17
Kapulnik, Y., Department of Plant Pathology and Microbiology, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, 76 100, Israel
Feldman, M., Department of Plant Genetics, The Weizmann Institute of Science, Rehovot, 76 100, Israel
Okon, Y., Department of Plant Pathology and Microbiology, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, 76 100, Israel
Henis, Y., Department of Plant Pathology and Microbiology, Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, 76 100, Israel
Contribution of nitrogen fixed by Azospirillum to the n nutrition of spring wheat in Israel
Acetylene reduction activity (ARA) was measured in cores containing roots of various Israeli wild and cultivated wheat lines colonized by Azospirillum. The inoculated plants were grown under greenhouse or field conditions. Although, no measurable ARA was detected during earlier stages of wheat development, 50-600 nmol C2H4 g-1 dry root h-1 was measured during heading and flowering stages. By using N yield balance and 15N dilution techniques, it was found that Triticum aestivum cv. Miriam inoculated with Azospirillum accumulated 20% more N (14N and 15N) at the booting stage than did the uninoculated control. This difference in N content became less apparent in grains. No significant 15N dilution could be found and the contribution of atmospheric N2 to the N content of grains of inoculated plants was negligible. It was concluded that the potential contribution of biological N2 fixation to spring wheat cultivation in Israel is very low. © 1985.
Scientific Publication
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