Three high protein (HP) inbred lines (7001 12, WC-I 90 and B-816) of pearl millet were studied for their nutritional quality and the results compared with those of normal protein varieties. The protein content of H P lines showed an average increase of 60% but the starch and soluble sugars togerher and the far content decreased by 40 and 20%, respectively. Total dietary fibre of the H P lines was about 10% higher. A decrease (about 20%) in the albumin fraction was associated with an increase in prolamin in H P lines. The amino acid composition of the H P lines remained normal except for an approximately 16% decrease in lysine. However, the total amount of lysine in the sample increased by an average of 37%, as a result of a substantial increase in protein content. True protein digestibility was very high for each line but, expectedly, the biological value was markedly lower. The values for utilisable protein were highest for high protein genotypes. Digestible energy was high in all the genotypes, although slightly lower values were obtained for the H P lines; this was attributed to the fibre fractions.
Pearl millet, Pennisetum glaucum (L.) R. Br., is the principal food cereal on 25 million ha of the drought‐prone semiarid regions of Africa and the Indian subcontinent. It is also used as a forage in Australia, southern Africa, South America, and the USA, and has shown regions. Recent increased levels of breeding and genetic research, now including gene mapping, have indicated a need for a current comprehensive review of accumulated genetic information on qualitative traits in this species. The present decriptive review attempts to meet this need and reports 167 studies. since 1934, on 145 characters in 12 categories: chlorophyll deficiencies, foliage striping, leaf characters, pubescence, plant form, pigmentation, earhead characters, reproductive structures and gamete formation, sterility, seed characters, earliness and maturity, and disease resistance. Gene symbols, where assigned by authors, are listed, and the nature of genetic effects are given. Known linkages and biochemical genetic markers are also reviewed. A comsistent nomenclature system should be developed and followed in the future, and a locaton designated for the deposition of genetic stocks.
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