Effects of Watering Regimes on Two Groundnut Cultivars. I. Plant Growth and Yield

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Ismail, A. M.
Ahmed, M. F.
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Faculty of Agriculture, University of Khartoum, Shambat, Sudan
A study was carried out in the field for two years to investigate the effects of a constant input of irrigation water, applied at intervals of 7, 14, 21 and 28 days, on the growth and yield of two groundnut cultivars, Ashford and MH383. Extended irrigation intervals reduced the attributes of both vegetative and reproductive growth, such as plant height, leaf area, dry matter production, number of pegs per plant, number and dry weight of pods per plant, 100-seed weight and harvest index. These reductions were naturally reflected in reduced hay and pod yields. Number and dry weight of pods per plant were the yield components most affected by watering. The responses of the two cultivars were very similar under the applied watering treatments. Strong linear correlations were observed between pod and hay yield and the total applied irrigation water.
Page(s): 2 (2), 17- 45, 12 Ref.
irrigation water,, yield components, reproductive growth, vegetative growth