Summary
Field investigations carried out at the Indian Institute of Horticultural Research, Bangalore, during 1985–1986 and 1986–1987 with French bean crops indicated that irrigation when soil matric potential at 0.15 m depth reached — 45 kPa resulted in highest dry matter production, green pod yield, nutrient uptake and water use efficiency (WUE) as compared to irrigations scheduled at -65 or -85 kPa. The difference in pod yield between irrigations scheduled at -25 and -45 kPa was not significant. Increasing soil moisture stress increased the canopy temperature and adversely affected plant water relations. There was a quadratric relationship between green pod yield and evapotranspiration (ET) with the yield-maximising ET ranging between 268 and 299 mm. Nitrogen fertilization significantly increased green pod yield, nutrient uptake and WUE but had no marked effect on water relations and canopy temperature.
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Contribution No. 234/88 of Indian Institute of Horticultural Research, Bangalore, India
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Hegde, D.M., Srinivas, K. Plant water relations and nutrient uptake in French bean. Irrig Sci 11, 51–56 (1990). https://doi.org/10.1007/BF00189995
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DOI: https://doi.org/10.1007/BF00189995