The distant hybridization was used in lodging-resistance breeding of Platycodon grandiflorus. As already mentioned semidwarfism is an important trait for sorghum as it confers lodging resistance as well as ease of harvesting by machine.
An Ideotype Design For Lodging Resistant Wheat And Rice Download Scientific Diagram
American Journal of Plant Sciences Vol6 No18November 16 2015 DOI.
Breeding for lodging resistance. Hence it is important to identify and utilize the quantitative trait loci QTLsgenes for lodging resistance breeding. Lodging reduces grain yield in cereal crops. In this study we mapped and characterised quantitative trait loci QTLs for lodging resistance as well as morphological.
Lodging resistance is of importance in cereal crop breeding. In the study 524 accessions from a rice germplasm collection and 193 recombinant inbred lines were phenotyped. The stem traits contributing to lodging resistance include basal internode lengths and thickness plant height and stem wall thickness.
- yield increase enhancement of compositional traits crop adaptation stress and lodging resistance and the impact on crop production systems. Genetic analyses of lodging resistance and yield provide insights into post-Green-Revolution breeding in rice. In the study 524 accessions from a rice germplasm collection and 193 recombinant inbred lines were phenotyped for 17 LRrelated traits.
104236ajps2015618281 2950 Downloads 3318 Views Citations. It is well known that morphological characteristics significantly affect lodging resistance. Breeding for lodging resistance is complex as it is influenced by structural properties of the stem and weather parameters like rainfall wind.
Lodging represents a quantitative trait and is difficult to assess on a phenotypic basis. Dozens of African orphan crops are the focus of an international genomics-enabled breeding program. The use of semi-dwarf plants facilitates high grain yield since these varieties possess high levels of lodging resistance and thus could support the high grain weight.
Lodging resistance a comprehensive indicator to appraise genotypes requires both characterization of mechanical properties in laboratory and investigation of lodging percentage in field. Luther gamma ray induced mutant had 20 increased yield higher and lodging. Lodging-Resistance Breeding of Platycodon grandiflorus Using Distant Hybridization.
Large varietal differences in breaking strength of the basal culm are related to lodging resistance which is associated with basal culm thickness culm stiffness and reinforcement by leaf sheaths Ookawa et al 1992. Marker-assisted selection MAS could therefore become an important tool in breeding for lodging resistance. Lodging can strongly affect both the grain yield and the quality of wheat.
One of the most chronic constraints to crop production is the grain yield reduction near the crop harvest stage by lodging worldwide. The characteristics of leaves stems and branches were the same as female for F1 generation. Major factors associated with lodging involve morphological and anatomical traits along with the chemical composition of the stem.
See more details within many cultivars and selection for rust resistance resulted in increased lodging lodging Subject Category. These traits have built up the remarkable relationship in. Continue rind penetrometer resistance selection in South American Popcorn Supergold Popcorn and Suwan 1 White to improve stalk lodging resistance and participate in regional 700-800 and 400-600 maturity NCR-167 germplasm evaluations.
Oryza longistaminata exhibits a strong stem and high biomass productivity which could be a candidate gene pool for cultivars lodging resistance improvement. This is more prevalent in cereal crops particularly in wheat and rice. Lodging reduces grain yield in cereal crops.
Height and culm strength the magnitude of applied force necessary to break the culm were two major factors affecting LR. Braun HJ Altay F Kronstad WE Beniwal SPS McNab A. Several classical dwarfing genes dw1dw4 have been introgressed into different sorghum varieties in the history of sorghum breeding.
Understanding the genetic basis of lodging resistance LR benefits LR breeding. Stalk lodging is an impediment to improving profitability and production efficiency in maize. Animal Breeding and Genetics Discontinued March 2000 - LL200.
However in situ characterization of maize lodging resistance still remains poor. Traditional breeding for high-yielding rice has been dependent on the widespread use of fertilizers and the cultivation of gibberellin GA-deficient semi-dwarf varieties. Diseases Disorders and Symptoms see more details resistance.
187 seeds of F1 were harvested by using the inter-generic hybridization in 2009 and 2010 2 repeat and 88 normal plants were obtained. The parents were Platycodon grandiflorus and Campanula medium. Cultivars to breed high yielding cultivars it is important to determine the traits related to a high lodging resistance.
In the study 524 accessions from a rice germplasm collection and 193. 1997 Breeding wheat for lodging resistance earliness and tolerance to abiotic stresses. Prospects for Global Improvement.
Yan Ma Yan Lin Huali Zhang Fang Liang Liping Sun Maoliang Wang Haibo Xin. Understanding the genetic basis of lodging resistance LR benefits LR breeding. Like many grasses lodging is a common problem for teff which is also characterized by excessive branching and tiny seed size.
Contd 3 Enhancing lodging resistance in Barley crop Mutation breeding has been very successfully used in breeding barley the introduction of Diamant and Golden Promise a gamma-ray induced semi- dwarf mutant revolutionized brewing industry in Europe. Understanding the genetic basis of lodging resistance LR benefits LR breeding. The improvement of crop plants by alteration of traits using traditional plant breeding program is time consuming and labor intensive.
Recombine and self selected families of Suwan 1 WhiteH33C0. As a result morphological differences among cultivars have been studied to identify morphological and anatomical traits associated with lodging response so that they could be used to breed. Among these is teff a drought-resistant cereal with protein-rich grains.
The introduction of the Rht1 gene improved lodging resistance but its effect on yield varied from 23 to 29.
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