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    Restructuring cowpea for higher yield

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    Date
    1996
    Author
    Singh, B.B.
    Sharma, B.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    The cowpea breeding programmes are reviewed and achievements at two major centres of cowpea research, i.e. IITA (Nigeria) and IARI (India), are summarized. Earlyand extra early genotypes are always photoperiod-insensitive, medium maturity varieties could be sensitive or neutral today length, while late varieties are always highly sensitive to photoperiod. It has been demonstrated that with the availability of short or medium duration varieties having erect plant type and resistant to major diseases, stable yields in the range of 25–30 q/ha can be obtained under appropriate crop management. Even early maturing varieties have yielded up to 29.88 q/ha in isolated trials. Breeding for insect resistance continues to be an uncertain area, while varieties resistant to major viral, bacterial and fungal diseases have been developed. Photoperiod-neutral varieties (which are also early maturing) possess wider adaptability. It has been demonstrated that high grain yield can be combined with high harvest index in the early and extra-early varieties, maturing in 60–65 days. The future varieties of cowpea should combine high yields with upright growth habit, bushy plant type, determinate flowering, early-medium maturity, and long peduncles keeping the pods above the plant canopy. Attempts are in progress to evolve varieties which can tolerate shady conditions of mixed cropping with tall cereals like maize, sorghum and pearl millet, as well as varieties for dual (grain-fodder, grain-vegetable) purpose.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5708
    IITA Subjects
    Cowpea; Agronomy; Plant Diseases; Crop Husbandry; Maize
    Agrovoc Terms
    Cowpeas; Vigna Unguiculata; Breeding; Diseases; Yields; Crop Management; Fungal Diseases; Bacterial Diseases; Fodder; Sorghum; Maize
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Collections
    • Journal and Journal Articles4835
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