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  • diversity  (3)
  • Springer  (3)
  • 1995-1999  (3)
  • 1
    Electronic Resource
    Electronic Resource
    Diversity in pearl millet germplasm from Cameroon (1996)
    Springer
    Genetic resources and crop evolution 43 (1996), S. 173-178 
    Details
    ISSN: 1573-5109
    Keywords: Pennisetum glaucum ; collecting ; landraces ; wild relatives ; diversity ; variation ; characterization ; adaptation ; pearl millet
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Pearl millet [Pennisetum glaucum (L). R. Br.] (syn. P. americanum (L.) Leeke) germplasm from Cameroon was collected jointly by the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) and the National Cereals Research and Extension Project (NCRE)/Institute of Agronomic Research (IAR), Maroua, Cameroon. Of the 1261 samples collected, 888 are pearl millet and 12 wild relatives of Pennisetums. A total of 918 accessions of pearl millet were evaluated during rainy and postrainy seasons at ICRISAT Asia Center (IAC), Patancheru, India, and 748 at Maroua, Cameroon. Considerable variation was observed for all the characters studies. At IAC, Patancheru, time to flower varied from 56 to 146 days with a mean of 114±0.62 days during the rainy and 46 to 128 days with a mean of 67±0.28 days during the postrainy season. At Maroua, the flowering time ranged from 49 to 112 days with a mean of 81±0.34 days. Plant height ranged from 230 to 450 cm with a mean of 353±1.52 cm. Spike and grain characters were more stable compared to flowering and plant height. The expression of spike characters was comparable to evaluation in postrainy season at IAC, Patancheru. In Cameroon, farmers classify pearl millet as Yadiri and Mouri, which vary for plant canopy, spike and grain characters. Mouri matures in about 95–110 days, extensively grown in the low rainfall areas of Extreme North province. Yadiri matures in 120–140 days, generally grown in the high rainfall areas of the North, Adamaoua provinces, and on the hill slopes of Extreme North province. Millet germplasm from Cameroon is a good source for more number of productive tillers, large compact spikes, and larger ivory and cream colored grain besides its potential for forage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00126761
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  • 2
    Electronic Resource
    Electronic Resource
    Diversity in pearl millet germplasm from Central African Republic (1996)
    Springer
    Genetic resources and crop evolution 43 (1996), S. 303-308 
    Details
    ISSN: 1573-5109
    Keywords: diversity ; evaluation ; landraces ; pearl millet
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Most of the pearl millet (Pennisetum glaucum (L.) R. Br.) growing areas in Central African Republic (CAR) were explored by the GRD, ICRISAT in collaboration with the Ministry of Rural Development, CAR, Bangui and 129 pearl millet samples were collected during December 1988–January 1989. Considerable diversity was observed for several characters when 146 accessions including 17 collected by Institut francais de recherche scientifique pour le développement en coopération (ORSTOM) were evaluated at ICRISAT Asia Center (IAC), Patancheru. Time to flower ranged from 57 to 140 days with a mean of 128±1.1 days in rainy season and from 57 to 132 days with a mean of 73±0.8 days during postrainy season. Plant height ranged from 140 to 410 cm with a mean of 311±6.1 cm in the rainy season and from 75 to 310 cm with a mean of 155±2.6 cm during the postrainy season. The number of tillers varied between 1 to 6 per plant, spikes were mostly cylindrical and medium sized with a mean length of 20 cm during both seasons. They produced mostly gray or cream colored, globular grain, with partly corneous endosperm. Cluster analysis categorized accessions into similarity groups facilitating sampling a limited number of entries to represent the diversity of the pearl millet germplasm from Central African Republic.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00132949
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  • 3
    Electronic Resource
    Electronic Resource
    Morphological diversity in sorghum germplasm from India (1996)
    Springer
    Genetic resources and crop evolution 43 (1996), S. 559-567 
    Details
    ISSN: 1573-5109
    Keywords: evaluation ; sorghum ; diversity ; races ; germplasm utilization ; genetic stocks ; agronomic traits
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Of the 5000 sorghum (Sorghum bicolor L. Monench) germplasm accessions assembled at ICRISAT Asia Center (IAC), over 4000 accessions from 11 major sorghum growing states in India were evaluated for morphological and agronomical characters at IAC during rainy and postrainy seasons. Considerable diversity was observed for all the characters studied. Diversity was more among states than within states. Variation among the seasons was also considerable. Days to flowering ranged from 42 to 129 days during postrainy and 33 to 180 days during the rainy season indicating their day length sensitivity. Plant height ranged from 65 to 330 cm during postrainy and 75 to 655 cm during rainy season. Panicle length ranged from 5 cm to 52 cm and panicle width from 1 to 51 cm. Erect and compact panicles are more frequent although all possible panicle shapes and compactness were found. In general, sorghums from India produce medium to large, lustrous grains in which the subcoat (testa) is absent. All the 5 basic and 10 intermediate sorghum races were found in India though durra or half-durra predominate. Racial diversity is maximal in the state of Andhra Pradesh followed by Maharashatra state. In the world collection a majority of the sources of resistance to shoot fly, stem borer, and striga are from India. Based on diversity for morphological and agronomical characters, India could be considered as the secondary center of diversity. Sorghum germplasm from India is useful for good quality large grain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00138832
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