Genotypic response of chickpea (Cicer arietinum L.) cultivars to drought stress implemented at pre- and post-anthesis stages and its relations with nutrient uptake and efficiency
2006
Gunes, A.(Ankara Univ. (Turkey). Dept. of Soil Science and Plant Nutrition) E-mail:[email protected] | Cicek, N.(Ankara Univ. (Turkey). Dept. of Soil Science and Plant Nutrition) | Inal, A.(Ankara Univ. (Turkey). Dept. of Soil Science and Plant Nutrition) | Alpaslan, M.(Ankara Univ. (Turkey). Dept. of Soil Science and Plant Nutrition) | Eraslan, F.(Ankara Univ. (Turkey). Dept. of Soil Science and Plant Nutrition) | Guneri, E.(Ankara Univ. (Turkey). Dept. of Soil Science and Plant Nutrition) | Guzelordu, T.(Ankara Univ. (Turkey). Dept. of Soil Science and Plant Nutrition)
An experiment under controlled conditions was carried out to study the genotypic response of 11 chickpea cultivars to drought and the relations between drought and N, P, K, Ca, Mg, Fe, Zn, Mn and B uptake as well as uptake efficiency. Plants were grown either optimal or drought stress implemented at pre- (early drought stress, EDS) and post-anthesis (late drought stress, LDS) stages. Growth reduction of the cultivars as a response to drought significantly differed. EDS had less detrimental effects on growth and nutrient uptake than LDS conditions. In general, drought tolerant chickpea cultivars accumulated more N, P, K, Ca, Zn, Mn and B in both drought stress treatments except for Zn and Mn uptake in LDS treatment. The total nutrient uptake efficiency of the cultivars were also very significantly correlated with the growth reduction ration both in EDS and LDS treatments.
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