Pearl Millet Inbred Lines Research Articles

Effect of pollinator on haploid production in durum wheat crossed with maize and pearl millet

AbstractThe aim of this work was to analyse the influence of the male parent on the production of embryos and haploid plants in durum wheat crossed with maize and pearl millet, to find a proper trait to identify the most efficient pollinators and to evaluate the mixtures of pollen. Two genotypes of durum wheat, low and high responding, were crossed with eight pollen samples: (i) three maize hybrids, (ii) three pearl millet inbred lines, (iii) a mixture of maize pollen and (iv) another mixture of pearl millet pollen. No significant differences on embryos and haploid plant production were observed among the four samples of maize pollen, but there were clear genotypic differences for the production of haploids between genotypes of pearl millet. The best pearl millet genotype produced significantly more haploid plants than the other two and the mixture of pollen. There was no correlation between the production of embryos and haploid plants. Therefore, the production of haploid plants must be the criterion to identify superior pollinators. In addition, a mixture of pollen is inappropriate except when using genotypes previously identified as good pollinators.

Fertility improvement in tetraploid pearl millet

Autotetraploid (2n=4x=28) pearl millet inbred lines, Tift 23BE and Tift 239DB, have been developed for use in crosses with other polyploid Pennisetum species. Each line set less than 1% and 3% selfed and open-pollinated seed, respectively. Seed germination was usually less than 17%. First generation (F1) hybrids between the two inbreds set up to 61% seed while up to 40% of the seed from hybrids germinated.

Morphological characteristics and leaf pigment contents of isogenic-diploid and tetraploid pearl millet inbred lines.

Inbreds with different ploidy level allow for the study of ploidy-genotype effects on various agronomic, morphological and physiological characteristics. Isogenic diploid (2n=14)-tetraploid (2n=28) pearl millet (Pennisetum glaucum (L.) R. Br.) inbred lines Tift 23BE, Tift 239DB and Tift 23R (red plant) grown at two planting dates were evaluated in replicated tests for polyploidy effects on several morphological characteristics and leaf pigment contents. Tetraploid inbred lines 23BE and 239DB flowered later, were shorter and produced smaller panicles with less seed, but showed small or non-significant differences in length and width, and one hundred seed weight. However, tetraploid inbred 23R averaged significantly higher than the diploid in all characteristics except number of days to flowering and seed weight per panicle. Chlorophyll a and b were in similar concentrations among diploid and tetraploid inbreds, except for tetraploid inbred 238E which had higher chlorophyll a concentration. Carotene and anthocyanin concentrations increased by 300% and 100%, respectively, from the diploid to the tetraploid level in inbred 23R. The data indicated that changes in morphological characteristics were due to ploidy, plant genotype, and/or environmental conditions. A 26 May planting date with increasing day lengths was more effective for distinguishing ploidy effects than a 30 June planting date with decreasing day lengths.

Acetylene reduction activity of pearl millet inbred lines grown in soil

Pearl millet inbred lines previously selected for differences in acetylene reduction activity (ARA) in seedling agar tubes were found to support low soil ARA. Lines selected for high ARA gave better performance than lines selected for low ARA. None of the high ARA lines was found to approach the ARA of alfalfa with their average rates over 40 fold lower.

Exotic Germplasm for Improving Grain Yield and Growth Rate in Pearl Millet1

The potential of a germplasm source for improving certain productivity traits in a crop may be assessed by mating representative genotypes of the potential sources to the crop species or by measuring traits on the various genotypes per se. In this study, to evaluate the potential of three exotic strains of pearl millet [Pennisetum americanum (L.) Leekel to improve the grain yield and growth rate of cultivated pearl millet, a primitive landrace, a weedy relative, and a wild relative, were mated with two pearl millet inbred lines in a mating scheme designed to evaluate both the variability within the exotic strains and the progeny from their matings with the inbred lines. The experiment was evaluated in the rainy season of 1982 at Patancheru, India. The introgressed progeny were evaluated for grain yield and growth rate. The results of the study indicated that it was possible to select lines with transgressively increased grain yield and growth rate in all the matings. The exotic strain with the most potential to improve growth rate in pearl millet inbreds was the wild accession. The best exotic parents for improving grain yield (based upon a number of criteria) were the primitive landrace and the weedy relative.

Amino acid profiles, chemical scores, and mineral contents of some pearl millet inbred lines.

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAmino acid profiles, chemical scores, and mineral contents of some pearl millet inbred linesAugust V. Bailey, Biagio Piccolo, Gene Sumrell, and Glenn W. BurtonCite this: J. Agric. Food Chem. 1979, 27, 6, 1421–1423Publication Date (Print):November 1, 1979Publication History Published online1 May 2002Published inissue 1 November 1979https://doi.org/10.1021/jf60226a061RIGHTS & PERMISSIONSArticle Views76Altmetric-Citations7LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (334 KB) Get e-Alerts Get e-Alerts