中国油料作物学报 ›› 2019, Vol. 41 ›› Issue (4): 490-.doi: 10.7505/j.issn.1007-9084.2019.04.002

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Breeding of semi-sprawl and dense-branching high yield peanut by distant hybridization #br#


  1. 1. Bio-Tech Research Center, Shandong Academy of Agricultural Science / Shandong Provincial Key Laboratory of Genetic Improvement, Ecology and Physiology of Crops, Jinan 250100, China; 
    2. Shandong Peanut Research Insti? tute, Qingdao 266100, China; 
    3. Shandong Academy of Agricultural Science, Jinan 250100, China
  • Online:2019-08-28 Published:2019-10-18

Abstract: Peanut is an important oil crop in China. To introduce excellent genes of wild peanut into cultivated varieties, black peanut (A. hypogaea L.) and wild type peanut A. monticola were hybridized using distance hybridiza? tion, and a high-yielding line was obtained. The average yield per plant of this strain was 4 times higher than that of common peanut, and the plant architecture of the parent black peanut changed from erect-and-sparse-branching type to semi-sprawl-and-dense-branching type. In addition, this strain had a long growth period, large flower quan?tity, deep color, large number of pods, and the effective yield range of a single branch was about 20-25 cm. The pod type in most strains was similar to that of black peanut. The seed coat varies in color from pink to purple. There was
a significant difference in seed size. It was feasible to cultivate high-yielding peanut strain (species) by using semisprawl- and-dense branch type.

Key words: black peanut (Arachis hypogaea L. ), wild peanut (A. monticola), distant hybridization, erect type, semi-sprawl and dense-branching type, seed color, high yield