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Author: Qurban Ali
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659686832
Category :
Languages : en
Pages : 252
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Book Description
The present study was carried out in the experimental area of the Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad Pakistan to evaluate the maize accessions for grain and fodder yield. Eighty maize accessions were collected from the Department of Plant Breeding and Genetics, University of Agriculture Faisalabad, National Agriculture Research Centre, Islamabad and Maize and Millet Research Institute Sahiwal, Pakistan. The inbred lines B-316, F-96, B-11, Sh-139 and EV-340, Pop/209, E-322, B-336 and EV1097Q showed higher GCA for most of grain, fodder and quality traits which indicated that these lines may be used for the development of synthetic varieties. The F1 hybrids B-11 x E-322, EV-1097 x Pop/209, B-327 x F-96, B-336 x B-316, EV-1097 x E-322, B-327 x E-340, Sh-139 x Pop/209, EV-1097 x EV-340, EV-1097 x B-316, Raka-poshi x Pop/209, B-336 x EV-347, B-336 x Pop/209, EV-1097 x Pop/209, B-316 x E-340, Raka-poshi x F-96, B-327 x Pop/209 showed higher SCA for most of grain, fodder and quality traits which indicated that these lines may be used in future for the development of hybrids and heterosis breeding program."
Author: Qurban Ali
Publisher: LAP Lambert Academic Publishing
ISBN: 9783659686832
Category :
Languages : en
Pages : 252
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Book Description
The present study was carried out in the experimental area of the Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad Pakistan to evaluate the maize accessions for grain and fodder yield. Eighty maize accessions were collected from the Department of Plant Breeding and Genetics, University of Agriculture Faisalabad, National Agriculture Research Centre, Islamabad and Maize and Millet Research Institute Sahiwal, Pakistan. The inbred lines B-316, F-96, B-11, Sh-139 and EV-340, Pop/209, E-322, B-336 and EV1097Q showed higher GCA for most of grain, fodder and quality traits which indicated that these lines may be used for the development of synthetic varieties. The F1 hybrids B-11 x E-322, EV-1097 x Pop/209, B-327 x F-96, B-336 x B-316, EV-1097 x E-322, B-327 x E-340, Sh-139 x Pop/209, EV-1097 x EV-340, EV-1097 x B-316, Raka-poshi x Pop/209, B-336 x EV-347, B-336 x Pop/209, EV-1097 x Pop/209, B-316 x E-340, Raka-poshi x F-96, B-327 x Pop/209 showed higher SCA for most of grain, fodder and quality traits which indicated that these lines may be used in future for the development of hybrids and heterosis breeding program."
Author: Mulamba Ngandu-Nyindu
Publisher:
ISBN:
Category :
Languages : en
Pages : 282
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Author: Rakesh Kumar
Publisher:
ISBN:
Category :
Languages : en
Pages :
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The present study was undertaken to observe the range of variability for different fodder traits and to estimate heritability and genetic advance for individual character along with some fodder altributes at genotypic and phenotypic levels. The sesults indicated that variety south African comporite showed superior performance in green yield and crude protein yield perplant where as variety vijay composite was superior with respect to number of cofs per plant and dry matter yield per plant. Genotypic sona recon exhibited maximum leaf breadth but was poor in other characters. Plant height resulted in highest heritability and genetic advance and green yield and dry matter yield found to be significantly positively correlated with plant height stem diameteve leaf number and leaf wight. All the leaf characters, stem diameter, weight of cobs and crude protein yield showed direct contribution to forage yield composite and vijaya composite were excellent in most of the forage traits.
![Evaluation and Characterization of Maize (Zea Mays L.) Genotypes for Morphological, Grain Yield and Quality Traits [With CD Copy] PDF](https://books.google.com/books/content/images/frontcover/IjnnvQEACAAJ?fife=w80-h100)
Author: Vikash
Publisher:
ISBN:
Category :
Languages : en
Pages : 69
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Author: J. Suresh
Publisher:
ISBN:
Category :
Languages : en
Pages : 175
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Author: Avinash Karn
Publisher:
ISBN:
Category :
Languages : en
Pages : 166
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Maize (Zea mays ssp. mays) is one of the most important crops in the world. Teosinte (Zea mays ssp. parviglumis) is the wild progenitor of maize and has greater genetic diversity than maize inbreds and landraces. Maize was domesticated from teosinte 9000 years ago, in central Mexico, and has been subjected to modern plant breeding over the past 100 years. In the recent years, extensive scientific breeding practices have led to remarkable yield increases in maize. However, domesticated and artificial genes have greatly reduced genetic diversity and cannot contribute to variation for agronomically important traits. Teosinte readily forms hybrids with maize and thus offers a unique pool of allelic diversity for maize improvement, yet limited genetic resources were available to efficiently evaluate and tap this diversity. To broaden resources for genetic diversity studies in maize, our lab previously developed over 900 near-isogenic introgression lines (NILs) from 10 teosinte accessions in the B73 background, and here we report the development of a new population, the Teosinte Synthetic (Teo-Syn). In order to understand the relationship between genetic diversity from teosinte and grain composition, we evaluated kernel starch, protein, and oil content, in the teosinte NILs. We found two starch, three protein and six oil QTL, which collectively explain 18%, 23% and 45% of the total variation, respectively. A range of strong allelic effects were identified relative to the B73 allele, supporting our hypothesis that teosinte harbors stronger alleles for kernel composition traits than maize. We found that some of the regions of the genome that control grain composition in our population were previously identified in maize, but we also found several new regions of the genome from teosinte that control grain composition. These teosinte alleles can be exploited for the improvement of kernel composition traits in modern maize germplasm. Ultimately, these novel regions of the teosinte genome can be mined for useful variation to improve corn for producers and consumers, as well as many industrial applications. In maize, common variants play a critical role to adapt to numerous large-scale environments; however, there are numerous rare alleles that may contribute to inbreeding depression or heterosis through complementation, or in complex quantitative traits such as yield, adaptation and kernel composition. It is important to understand the role of rare alleles in the maize genetic architecture in order to aid in the selection and development of future elite breeding lines. A new genetic resource, the Teosinte Synthetic (Teo-Syn), was developed by our lab by randomly mating backcrossed (BC1) progeny of 11 parviglumis accessions in the B73 background, yielding a population with the expected genetic ratio of ~25% teosinte and ~75% B73. We identified several significant QTLs for plant architecture, adaptation and kernel composition traits with a wide range of allelic effects. We further investigated if there is any statistical evidence for epistatic interactions in the Teo-Syn population, and found numerous interacting sites with larger and wider effects than additive effects. Maize plays a central role in the US agriculture and food production, as well as has the greatest molecular and phenotypic diversity than any crop species. My results from this study provide accumulated evidence for epistatic interactions influencing the genetic architecture of several plant architecture and composition traits. Findings from this study provide novel information that can be utilized by breeders and geneticist to accelerate the development of future elite maize germplasm as well as provide insight to efficiently predict hybrid performance.
Author: C. V. Sridhar
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Twenty three fodder maize varieties obtained from maize breeder, 1 A.R.I, were analysed in randomised block desigh with three replication to seek information on significant differences among means, cofficient of variation, heritability, genetic aduance, correlation and path cofficient analysis results revealed that variety ic 2515 was superior with respect to stem dicemeler, leaf number, leaf breadth and cob number. It also showed good perfermonce for weight of leaves, ferage field per plant variety EH 2380 was superior for leaf lengh weight of leaves and dry matter field per plant and revealed good performance for leaf number forage field per plant. Variety IC 2501 revealed superior performance per plant weight and compeled well with superior varieties for character such lenght of incernode leaf number leaf lenght leaf breadth and crude protein field per plant. Variety IC2516 showed maximum performance for characters such as cob numbers and forage field per plant and also performed well for leaf breadth and dry matter field per plant. In general leaf characters showed direct contribution to both green and dry matter field per plant . Skim diameter revealed indirect contribution to forage field per plant via leaf lenght and leaf breadth.
Author: B. Tagoor Varma
Publisher:
ISBN:
Category :
Languages : en
Pages : 89
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Author: Gauthami R. Bhaskar
Publisher:
ISBN:
Category :
Languages : en
Pages : 53
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Author: Jagan Mohan Reddy
Publisher:
ISBN:
Category :
Languages : en
Pages : 125
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