Showing results for: agronomy Articles
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Heritability of drought resistance traits and correlation of drought resistance and agronomic traits in peanut
Inheritance of traits is important for developing effective breeding schemes for improving desired traits. The aims of this study were to estimate the heritabilities (h2) of drought resistance traits and the genotypic (rG) and phenotypic (rP) correlations between drought resistance traits and agronomic traits, and to examine the relationships between drought resistance traits under stressed and ...
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Ploidy determination and agronomic characterization of small burnet germplasm
Small burnet (Sanguisorba minor Scop.) is an evergreen forb readily utilized by livestock and wildlife that lacks persistence under heavy grazing. Our objective was to characterize all available National Plant Germplasm System (NPGS) small burnet germplasm for ploidy level and agronomic characteristics before initiating a breeding program. Ploidy level was determined by flow cytometry. Forage ...
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Developing a mini core collection of sorghum for diversified utilization of germplasm
The sorghum [Sorghum bicolor (L.) Moench] germplasm collection at the ICRISAT gene bank exceeds 37,000 accessions. A core collection of 2247 accessions was developed in 2001 to enable researchers to have access to a smaller set of germplasm. However, this core collection was found to be too large. To overcome this, a sorghum mini core (10% accessions of the core or 1% of the entire collection) ...
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Identification and mapping of new sources of resistance to aflatoxin accumulation in maize
Maize (Zea mays L.) susceptibility to ear rot and aflatoxin accumulation by Aspergillus flavus (Link:Fr) has caused significant economic losses for farmers in the U.S. over the past 30 years. Aflatoxin outbreaks are generally associated with high temperatures and low moisture levels common to the southern U.S. To identify aflatoxin accumulation resistance quantitative trait loci (QTL) and linked ...
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Effect of advanced cycle breeding on genetic gain and phenotypic diversity in barley breeding germplasm
Plant breeding with elite parents within closed populations has proven to be a successful strategy to achieve genetic gains and conserve favorable gene complexes. To investigate the effects of advanced cycle breeding on genetic gain, phenotypic variation, and germplasm differentiation, 15 agronomic and malting quality traits were evaluated for a set 98 genotypes including ancestors, parental ...
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Genetic mapping of sheath blight resistance QTLS within tropical Japonica rice cultivars
Most commercial cultivars of rice (Oryza sativa L.) are susceptible to sheath blight (SB), a devastating fungal disease causing significant losses in grain yield and quality. There are limited sources of genetic resistance adapted to U.S. growing conditions, and no commercial long grain cultivar of rice is currently available in the United States with a high level of SB resistance. Sheath blight ...
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Genetic diversity in a core collection established from the main bean genebank in Spain
Common bean (Phaseolus vulgaris L.) is a traditional crop in many Spanish regions. A major collection of Spanish common bean landraces is maintained at the National Genebank in the Center for Plant Genetic Resources (CRF), Alcala de Henares, Madrid, Spain. A core collection including 200 common bean accessions was established from the CRF collection. We sought to analyze the genetic diversity of ...
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Confirmation of molecular markers and agronomic traits associated with seed phytate content in two soybean RIL populations
The concentration of phytate is an important consideration when analyzing feed grain for livestock. Simple sequence repeat markers Satt237 and Satt561 were found to be linked to quantitative trait loci (QTLs) for phytate concentration in soybean [Glycine max (L.) Merr.] seed. Previous research also established a significant correlation between seed inorganic phosphorus (Pi) and seed phytate. The ...
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Production of dryland barley for human food: quality and agronomic performance
Grain β-glucan content is the most important attribute for barley (Hordeum vulgare L.) varieties destined for the human food market. This trait is important because of the blood glucose and cholesterol-reducing properties of β-glucans. High levels of grain protein content, test weight, and seed size and endosperm color may also add value. Seed yield potential, in part, determines the ...
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Adaptation and mitigation of climate change in vegetable cultivation: a review
Climate change is an unavoidable phenomenon of natural and anthropogenic origin against which mitigation and adaptation are required to reduce the magnitude of impact and vulnerability, to avoid risk in vegetable farming and to ensure sustainable livelihoods of the agricultural community. Genetic improvement of vegetable crops is an appropriate adaptation strategy to cope with climate change ...
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New strategy of "two in one" rapid breeding
Xu Cao's research group from the Institute of Genetics and Developmental Biology, Chinese Academy of Sciences published a paper titled “A two-in-one breeding strategy boosts rapid utilization of wild species and elite cultivars” online in Plant Biotechnology. This study reports a new "two-in-one" rapid breeding strategy, which combines the new de novo domestication breeding method and ...
By Lifeasible
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What are leaves and why are they important? - Case study
As a research scientist, you’ve dedicated your life to understanding and communicating details about plants that others haven’t considered in the past. Our infographic below focuses on the leaf basics: what leaves are, what they do, and why they are so important. Share it with your students, your friends and family, or just use it as a reminder of why you do what you do. Plus, ...
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