Phenotypic Assessment of Genetic Diversity among Twenty Groundnut Genotypes under Well-watered and Water-stressed Conditions Using Multivariate Analysis

Younis, Adnan; Nassar, S. M. A.; Al-Naggar, A; Bakry, Bakry Ahmed

doi:10.3923/ajps.2020.474.486

Cited by 3 publications

(2 citation statements)

References 30 publications

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“…The strong association between GA and LLS_AUDPC, GGA and LLS_AUDPC and Hue and LLS_AUDPC provides an opportunity for the development of LLS resistant cultivars through indirect selection. Because of polygenic nature of ELS and LLS ( Younis et al, 2020 ), the direct/traditional selection is hindered by the environmental effect. When selecting based on GA, GGA, and Hue, however, our data indicate less environmental effect and higher heritability than for visual selection.…”

Section: Discussionmentioning

confidence: 99%

RGB-image method enables indirect selection for leaf spot resistance and yield estimation in a groundnut breeding program in Western Africa

et al. 2022

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Early Leaf Spot (ELS) caused by the fungus Passalora arachidicola and Late Leaf Spot (LLS) also caused by the fungus Nothopassalora personata, are the two major groundnut (Arachis hypogaea L.) destructive diseases in Ghana. Accurate phenotyping and genotyping to develop groundnut genotypes resistant to Leaf Spot Diseases (LSD) and to increase groundnut production is critically important in Western Africa. Two experiments were conducted at the Council for Scientific and Industrial Research-Savanna Agricultural Research Institute located in Nyankpala, Ghana to explore the effectiveness of using RGB-image method as a high-throughput phenotyping tool to assess groundnut LSD and to estimate yield components. Replicated plots arranged in a rectangular alpha lattice design were conducted during the 2020 growing season using a set of 60 genotypes as the training population and 192 genotypes for validation. Indirect selection models were developed using Red-Green-Blue (RGB) color space indices. Data was collected on conventional LSD ratings, RGB imaging, pod weight per plant and number of pods per plant. Data was analyzed using a mixed linear model with R statistical software version 4.0.2. The results showed differences among the genotypes for the traits evaluated. The RGB-image method traits exhibited comparable or better broad sense heritability to the conventionally measured traits. Significant correlation existed between the RGB-image method traits and the conventionally measured traits. Genotypes 73–33, Gha-GAF 1723, Zam-ICGV-SM 07599, and Oug-ICGV 90099 were among the most resistant genotypes to ELS and LLS, and they represent suitable sources of resistance to LSD for the groundnut breeding programs in Western Africa.

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Section: Discussionmentioning

confidence: 99%

RGB-image method enables indirect selection for leaf spot resistance and yield estimation in a groundnut breeding program in Western Africa

et al. 2022

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“…Peanut is known as the 13th food crop, 4th oil seed crop and the 3rd source of vegetable protein (Taru et al, 2008). Peanut's economic bene t is mostly due to its short soil lifespan, which allows for higher economic returns in newly reclaimed lands when compared to other crops (Younis, et al, 2020). Peanuts are as popular as they are nutritious, containing 40-50 percent oil, 25-30 percent protein, 20 percent carbs, and 5% ash, as well as various minerals such as magnesium and calcium, depending on the variety and agricultural treatments (Savage and Keenan 1994, Knauft and Ozias-Akins 1995 and .…”

Section: Introductionmentioning

confidence: 99%

Role of carbon nano tubes for improving drought tolerance via upregulation of physiological attributes processes of peanut plant grown in sandy soils

Sadak,

Ashkar,

Bakry

2023

Preprint

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Drought stress resulted due to climatic variations is a universal issue thatoccurs unexpected result in significant impacts on growth, development as well asyield of different plants. Carbon materials impact on plant subjected to different stresses are still poorly studied. Thus, this study was carried outto investigate the feasibility of applying carbon nanotubes (CNTs)(0, 20, & 40mg/L) as foliar treatment for mitigating the reduced effect of water stress (100%, 75% & 50%irrigation water IW) on peanut plants growing in sandy soilthrough assessment growth, productivity, and some physiological and biochemical measurements.Exposure of peanut to decrease irrigation water led to significant decreases in growth, yield photosynthetic pigments, indole acetic acid IAA, and some nutritional components of yielded peanut seeds.While increased osmolytes as total soluble carbohydrates TSS, proline in addition to free amino acids and phenolics, however, foliar spraying with CNTscould ameliorate the diminished impacts of decreased irrigation water on growth and production via enhancing the studied physiological parameters as photosynthetic pigments, IAA, in addition to osmolytes and phenolics. Furthermore, the application of carbon nano tubes improved the nutrient contents expressed by oil yield, protein yield, total carbohydrates, antioxidant activities (DPPH), B- carotene, lycopene and flavonoids in peanut seeds either under normal or water stress conditions. Higher level 40 mg/L CNTs was more effective than lower one 20 mg/L on increasing the above mentioned parameters. In conclusion, foliar treatment with carbon nano tube has the ability to enhance peanut drought tolerance and increase growth and productivity under sandy soil conditions.

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Comparison of the partial root drying and conventional drip irrigation regimes on seed, oil yield quality, and economic return for peanut crop

et al. 2023

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Phenotypic Assessment of Genetic Diversity among Twenty Groundnut Genotypes under Well-watered and Water-stressed Conditions Using Multivariate Analysis

Cited by 3 publications

References 30 publications

RGB-image method enables indirect selection for leaf spot resistance and yield estimation in a groundnut breeding program in Western Africa

RGB-image method enables indirect selection for leaf spot resistance and yield estimation in a groundnut breeding program in Western Africa

Role of carbon nano tubes for improving drought tolerance via upregulation of physiological attributes processes of peanut plant grown in sandy soils

Comparison of the partial root drying and conventional drip irrigation regimes on seed, oil yield quality, and economic return for peanut crop

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