Effet d'un déficit hydrique sur le trèfle blanc (Trifolium repens L) I. Rôle d'un apport de potassium

Shamsun-Noor, L.; Robin, Christophe; Guckert, Armand

doi:10.1051/agro:19900102

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…Very few and sporadic reports are available in the literature. Shamsun-Noor et al (1990) reported that the N2-fixation activity of Downloaded by [UQ Library] at 03:53 15 March 2015 drought-stressed white clover was greatly increased with K fertilization. Earlier, Mengel and Arnek (1982) found a positive effect of K supply on Phaseolus vulgaris growing under low water potential.…”

Section: Discussionmentioning

confidence: 99%

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Response of nitrogen fixation, nodule activities, and growth to potassium supply in water‐stressed broad bean

Abdalla

Wahab

1995

Journal of Plant Nutrition

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Three-week-old nodulated faba bean plants were subjected to two levels of water stress (0.5 and 0.25 field capacity; soil water content of 20 and 10%) for five weeks. Half of the stressed plants was treated with potassium chloride (KC1) at 10 (K 1 ) and 150 mg (K 2 )/kg soil at the beginning of water deficit. Nodulation was examined and some nodule activities were assayed. Nodulation, nitrogenase activity, total nitrogen (N), and dry matter yield were significantly decreased by increasing stress but were significantly higher with the two levels of potassium (K) supply. Leghaemoglobin and protein contents of cytosol as well as nodule protease and invertase were severely depressed by drought stress. Soluble carbohydrate contents of nodules, however, was significantly increased. Protein and leghaemoglobin contents and enzyme activities were greater with K fertilization but less soluble carbohydrate was accumulated. The results indicate that K supply, particularly at the 150 mg/kg soil level, increased faba bean resistance to water stress.

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Section: Discussionmentioning

confidence: 99%

“…Protein synthesis was influenced to a greater degree by K deficiency than N fixation (Feigenbaum and Mengel, 1979). However, little information is available about N2-fixing activities of drought-stressed legumes in connection with K fertilization (Guckert and Laperriere, 1987;Shamsun-Noor et al, 1990).…”

Section: Introductionmentioning

confidence: 99%

Response of nitrogen fixation, nodule activities, and growth to potassium supply in water‐stressed broad bean

Abdalla

Wahab

1995

Journal of Plant Nutrition

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RESPONSES OFLABLAB PURPUREUS(L.) SWEET / RHIZOBIUM SYMBIOSIS AND GROWTH TO POTASSIUM SUPPLY UNDER DIFFERENT WATER REGIMES

Younis

2010

Journal of Plant Nutrition

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Effet d'un déficit hydrique sur le trèfle blanc (Trifolium repens L) I. Rôle d'un apport de potassium

Cited by 2 publications

References 8 publications

Response of nitrogen fixation, nodule activities, and growth to potassium supply in water‐stressed broad bean

Response of nitrogen fixation, nodule activities, and growth to potassium supply in water‐stressed broad bean

RESPONSES OFLABLAB PURPUREUS(L.) SWEET / RHIZOBIUM SYMBIOSIS AND GROWTH TO POTASSIUM SUPPLY UNDER DIFFERENT WATER REGIMES

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