|Author:||Anitha, S. ; Mathew, G. ; Sreenivasan, E. ; Purushothaman, S. M.|
|Book Group Author:||NA|
Field experiments were conducted during the summer seasons of 1998-2000 in Pattambi, Kerala, India, to study the yield response of 8 cowpea cultivars (C-152, Kanakamani, Krishnamani, V-16, V-240, GC-3, V-118 and Pusa Phalguni) to irrigation schedules (IW/CPE of 0.4 (stressed) and 0.8 (no stress)) in summer rice fallows. Irrigation at 0.8 IW/CPE recorded significantly higher water use efficiency (27.10 kg ha-1 cm-1) and yield (936 kg/ha) compared to irrigation at 0.4 IW/CPE, which recorded water use efficiency of 26.94 kg ha-1 cm-1 and yield of 795 kg/ha. Kanakamani was the best cultivar, recording the highest yield of 963 kg/ha, followed by GC-3 (919 kg/ha), V-240 (867 kg/ha) and Krishnamani (863 kg/ha). These cultivars recorded water use efficiency of 30.09 (the highest), 28.71, 27.09 and 26.96 kg ha-1 cm-1, respectively.
cowpeas, crop yield, cultivars, irrigation scheduling, plantwater relations, water use efficiency, India, Kerala, Vigna unguiculata,Vigna, Papilionoideae, Fabaceae, Fabales, dicotyledons, angiosperms,Spermatophyta, plants, eukaryotes, South Asia, Asia, DevelopingCountries, Commonwealth of Nations, India, black-eyed peas, cultivatedvarieties, southern peas, Field Crops (FF005) (New March 2000), PlantBreeding and Genetics (FF020), Plant Water Relations (FF062), PlantProduction (FF100), Soil Water Management (Irrigation and Drainage)(JJ800) (Revised June 2002) [formerly Soil Water Management]