Effect of Soil Water Stress on Bush Beans Phaseolus vulgaris L. at Three Stages of Growth1

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Abstract
Bush beans grown on plots provided with an automatic rain shelter were subjected to a soil water stress of 8 bars at the preflowering, flowering, and postflowering stages of growth. Total weights of green pods from 4 harvests were reduced 53, 71, and 35%, respectively, from those of plants that were on low stress. Fifty pounds of N and 22 lb. of P/A increased yields significantly. Plants that were under stress subsequently did not attain a normal height. The effects of stress on floral set and pod development are discussed.

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