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Home > Archive>Volume 23, Issue 3, 2022 >722-730. DOI:10.13430/j.cnki.jpgr.20211104001
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Evaluation and Identification of Pod Abscission in 294 Peanut Varieties
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Crops Research Institute Guangdong Academy of Agricultural Sciences/Guangdong Provincial Key Laboratory of Crop Genetic Improvement

Fund Project:

Modern Agroindustry Technology Research System（CARS-13），National Natural Science Foundation of China（31771841， 31801401），Natural Science Foundation of Guangdong Province（2021A1515010811），Science and Technology Program of Guangzhou，China（201904010190），Teamwork Projects Funded by Guangdong Academy of Agricultural Sciences （202104TD），Special Project for Science and Technology Innovation Strategy of Guangdong Academy of Agricultural Sciences，Jinying Star Project（R2020PY-JX004）

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    Abstract:

    The peanut pod abscission ability，which is the difficulty of pod shedding after maturity，is mainly related to the fracture force of gynophore-pod and gynophore-stem. In order to explore the variation of pod abscission among different peanut varieties，the fracture force of gynophore-pod and gynophore-stem of 294 genotypes were systematically measured and analysed at the beginning of harvest and after drying for 4 days in this experiment. The results showed that there were significant differences in fracture force of gynophore-pod and gynophore-stem among different peanut varieties. The variation of the gynophore-pod fracture force among 294 germplasms at the beginning of harvest and after drying for 4 days were 2.07-20.07 lb and 1.73-9.64 lb respectively，while the variation of the gynophore-stem fracture force was 2.21-22.86 lb and 1.90-11.25 lb respectively. The variation of gynophore-stem fracture force was observed at the beginning of harvest. The correlation between the characteristics of pod abscission and the main stem height and the number of pods per plant was not significant. Nine and 20 peanut varieties with suitable pod abscission ability after harvest and drying were screened respectively，which laid elite germplasm resource to breed new varieties of peanuts suitable for mechanized harvesting.

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History
  • Received:November 04,2021
  • Revised:November 18,2021
  • Adopted:February 08,2022
  • Online: May 10,2022
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