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  • 1
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    Evaluation of groundnut (Arachis hypogaea) genotypes for intercropping with two types of pigeon pea (Cajanus cajan) (1990)
    Cambridge University Press
    Details
    Publication Date: 1990-12-01
    Description: SUMMARYEight genotypes of groundnut and two of pigeon pea were evaluated in intercropping at the Indian Institute of Technology, Kharagpur, during the monsoon and winter seasons in 1985 and 1986, to identify plant characters associated with high yield in intercropping. The pod yield of groundnut decreased when intercropped with pigeon pea, the extent of the decline differing with groundnut and pigeon pea genotypes. The reduction in groundnut pod yield and the degree and duration of shading was less when grown with pigeon pea type ICPL87 than with LRG30. During the monsoon, pod yield among intercropped groundnut genotypes ranged between 47% and 88% of their yields under monocropping because of differences in growth pattern and duration (90–125 days). The groundnut type most suitable for intercropping had early vigour, early maturity and high partitioning and pod growth rate. However, variation in pod yield among groundnut genotypes was not observed during the winter season because they showed less variation in duration and growth and there was less shading by the associated pigeon pea.
    Print ISSN: 0021-8596
    Electronic ISSN: 1469-5146
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Cambridge University Press
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  • 2
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    Planting pattern of two pigeonpea (Cajanus cajan) cultivars when intercropped with groundnut (Arachis hypogaea) (1994)
    Cambridge University Press
    Details
    Publication Date: 1994-06-01
    Description: SUMMARYField experiments were conducted during the two monsoon seasons of 1985 and 1986 at Kharagpur, West Bengal, to investigate the effect of pigeonpea cultivars and their planting pattern on the performance of a groundnut–pigeonpea intercrop. In intercropping the crops were also sown at 100% population of their sole crops. Groundnut plant growth and development was affected by intercropping with pigeonpea and the decline in pod yield ranged from 7 to 50% of the sole crop yield. The compact, short-statured and short duration pigeonpea cultivar, ICPL87, intercepted only 50% of the incoming solar radiation as against the 70% intercepted by LRG30 at the peak vegetative stage. The significantly higher groundnut yield (48%) obtained from the intercrop with the former pigeonpea cultivar as compared to the latter justifies the belief that the performance of the groundnut was light-related. This was further confirmed when the light interception by pigeonpea was reduced by increasing the row spacing from 90 to 150 cm and there was a consequent increase in groundnut yield. The cultivar and row arrangement of pigeonpea that allowed equal utilization of light by both crops gave increased productivity.
    Print ISSN: 0021-8596
    Electronic ISSN: 1469-5146
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Cambridge University Press
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  • 3
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    Genotype studies in a groundnut-pigeonpea intercropping system (1987)
    Cambridge University Press
    Details
    Publication Date: 1987-12-01
    Description: Intercropping has been recognized as an important farming practice, particularly under rainfed conditions, for its greater stability in production, equal distribution of labour throughout the growing season and greater diversity of food and income sources. Evidence for higher productivity from intercropping through more efficient use of resources has been demonstrated (Andrews, 1972; De & Singh, 1979; Willey & Natarajan, 1978). Groundnutpigeonpea intercropping, which is prevalent in semiarid conditions of India on alfisols, does not produce good yields because of the traditional practice of having low pigeonpea density. Also, unsuitable genotype and poor arrangement of the crops often prove to be disadvantageous.
    Print ISSN: 0021-8596
    Electronic ISSN: 1469-5146
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Cambridge University Press
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