1996
DOI: 10.1080/01904169609365116
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Nodulation, biomass production, and nitrogen fixation in alfalfa under drought1

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Cited by 28 publications
(6 citation statements)
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“…Scarcity of water is a severe environmental constraint to plant productivity. Although lucerne is more tolerant than most forage legumes, the productivity of dry mass is adversely affected by water deficiency stress, especially in the year of establishment [ATHAR and JOHNSON, 1996;FRAME et al,1998] .…”
Section: Introductionmentioning
confidence: 99%
“…Scarcity of water is a severe environmental constraint to plant productivity. Although lucerne is more tolerant than most forage legumes, the productivity of dry mass is adversely affected by water deficiency stress, especially in the year of establishment [ATHAR and JOHNSON, 1996;FRAME et al,1998] .…”
Section: Introductionmentioning
confidence: 99%
“…The experiment was arranged in a completely randomized design and the tubes were watered as required with sterile Faharaeus medium or sterile distilled water. Nitrogen was added to the tubes one week after planting as an aqueous solution of KNO₃ at the rate of 100 kg N/ha as recommended by Athar and Johnson (1996) to ensure the effect of nitrate on the nodulation. After good growth, plants were harvested, to record nodules number.…”
Section: Tube Experimentsmentioning
confidence: 99%
“…Therefore, isolation of rhizobia strains tolerant to stresses like drought is necessary for efficient nitrogen fixation and improving plant productivity especially in the water limited areas (Abd El-Halim et al, 2001;Abdel-Salam et al, 2002;Diouf et al, 2007). Athar and Johnson (1996) reported that nodulation, growth and nitrogen fixation in alfalfa can be improved by inoculating plants with competitive and drought tolerant rhizobia. In addition, it was demonstrated that, selecting stress-tolerant cultivars and stress-tolerant rhizobia could be a rational strategy to improve the yield of legumes in stressed environments (Ben Rhomdhane et al, 2007;Meuelenberg and Dakora, 2007;Mhadhbi et al, 2008).…”
Section: Introductionmentioning
confidence: 99%