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Screening and Identification of Salt Tolerant Peanut (Arachis hypogaea L) Genotypes under Salinity Stress

  • Rizwana B.Syed Nabi;Eunyoung Oh;Myoung Hee Lee;Sungup Kim;Kwang-Soo Cho;Jeongeun Lee;Jung In Kim;Eunsoo Lee;Min Young Kim;Sang Woo Kim
    • Proceedings of the Korean Society of Crop Science Conference
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    • 2022.10a
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    • pp.113-113
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    • 2022

  • Salinity in surface waters is increasing around the world. Many factors, including increased water extraction, poor irrigation management, and sea-level rise, contribute to this change, and posing a threat to plant development and agricultural production. Seeds exposed to high salinity, have a lower probability of germinating and various physiological and biochemical effects. Salinity stress affects more than 20% of agricultural land and about 50% of irrigated land. In the current study, our objective is to identify the salt-tolerant peanut (Arachis hypogaea L.) Korean genotypes under salinity stress. Thus, two-week-old 19 diverse peanut Korean genotypes were exposed to 10 days of salinity (150 mM NaCl) stress. Based on the growth attributes investigation, Baekjung and Ahwon genotypes showed significantly higher shoot lengths compared to control plants. Whereas, the Sinpalwang genotype exhibited a significantly positive response for plant growth and reduced wilting symptoms compared to other genotypes. This study was able to find out peanut tolerant and sensitive genotypes for salt stress. These results may provide a good template for further salt-tolerant peanut cultivar improvement programs. Identified diverse salt-responsive genotypes can be utilized as source material in Korean breeding schemes for peanut crop improvement for salt and other abiotic stress tolerance.

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Effect of Sowing Dates on Agronomic Traits and Quality of Seed for Soybean [Glycine max (L.) Merr.] in Southern Area of Korea

  • Hye Rang Park;Sanjeev Kumar Dhungana;Beom Kyu Kang;Jeong Hyun Seo;Jun Hoi Kim;Su Vin Heo;Ji Yoon Lee;Won Young Han;Hong-Tai Yun;Choon Song Kim
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.68 no.4
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    • pp.313-326
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    • 2023

  • Owing to adverse weather conditions, there is a heightened focus on actively researching the regulation of the sowing date in field crop cultivation. Soybean, a prominent field crop with extensive acreage and production, is a photophilic and thermophilic crop characterized by short-day photoperiodism. Identifying the optimal sowing time is crucial for mitigating the effects of severe weather conditions on soybean yield. Precise control over the timing of soybean sowing is the key to minimizing yield reduction due to unfavorable weather conditions. Temperature, photoperiod, and their interplay are the most significant factors influencing soybean cultivation among various weather factors. We conducted an experiment using three Korean soybean cultivars with varied maturities (Hwangkeumol: early maturing and Daewonkong and Pungsannamulkong: late maturing) in 2013 and 2014. Our investigation covered aspects of soybean growth, development, yield components, isoflavones, and visual seed quality. Across all three varieties, isoflavone levels increased with later sowing dates, while other measured components exhibited significant variations based on the sowing date. This study also provides valuable insights for the selection of suitable cultivars that perform well in soybean cultivation at various durations of maturity.

  • https://doi.org/10.7740/kjcs.2023.68.4.313 인용 PDF