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STUDIES ON DROUGHT SUSCEPTIBILITY OF CORCHORUS OLITORIUS L. : I. EFFECTS OF STRESSING PLANT AT MIDVEGETATIVE STAGE ON DRY MATTER YIELD AND YIELD COMPONENTS OF TWO CULTIVARS OF C. OLITORIUS

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概要 A greenhouse experiment was conducted to evaluate the effects of soil water potential of -6 bar imposed at the mid-vegetative stage on two cultivars of Corchorus olitorius ('Angbadu' and 'Oniyaya'), b...oth indigenous to Nigeria. The objective was to determine the differential tolerance of the two cultivars to soil moisture stress. The two cultivars differed significantly in their responses to soilmoisture stress. Leaf area of 'Angbadu' plants was significantly reduced by soil moisture stress, while the reduction observed in 'Oniyaya' was not significant. 'Oniyaya' plants were more tolerant to soil moisture stress. It produced higher fresh weight and dry matter yields than 'Angbadu'. This is attributable to smaller leaves and greater average root length of 'Oniyaya' which helped in controlling excessive transpirational losses and exploit soil moisture while maintaining higher dry matter accumulation.続きを見る

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登録日 2009.04.22
更新日 2020.02.10