Comparative Study on Local Cultivars of <i>Astragalus sinicus</i> L.
Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2020, Vol. 41 ›› Issue (3): 441-448.DOI: 10.3969/j.issn.1000-2561.2020.03.004

• Crop Culture and Nutrition, Genetic Breeding • Previous Articles     Next Articles

Comparative Study on Local Cultivars of Astragalus sinicus L.

HE Chunmei1,LIU Cailing1,WANG Limin1,WANG Fei1,ZHANG Hui1,CAO Weidong2,HUANG Yibin1,*()   

  1. 1. Institute of Soil and Fertilizer, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350013, China
    2. Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
  • Received:2019-04-22 Revised:2019-06-27 Online:2020-03-25 Published:2020-04-16
  • Contact: HUANG Yibin

Abstract:

A field trial was conducted to select the milk vetch varieties suitable for Fujian and breed new varities by comparing the economic characteristics, phenological period and resistance of ten local Chinese milk vetch cultivars.The results indicated that Xinyang, Dawu, Xiangxiang and Glossy species were early manuring milk vetch cultivars grown in Fujian, and the fresh grass yield of the varieties was 44 225.59 kg/hm 2, which was lower than that of medium and late maturing varieties. The fresh grass yield and seed yield of Dawu were higher, reaching 48 015.75 and 342.04 kg/hm 2, respectively, and it was cold-resistant and disease-resistant, so it could be used as an excellent early-maturing variety. In addition, the average yield of the medium and late maturing varieties was 52 600.43 kg/hm 2. In terms of the grass yield, different varieties followed the orders of Yujiang Daye>Nanqiao species>Shengzhong species>Jinsha species>Changde species>Yijiang Species.Moreover, higher plant height, stem diameter, leaf area, leaf circumference, and the fresh grass yield were generally observed. Additionally, leaf area and leaf circumference were significantly (P<0.05) positive correlation, but no significant correlation existed between leaf area, leaf circumference and chlorophyll SPAD value. The medium and late-maturing varieties including Zhongshengzhong, Yujiang big leaf and Jinsha species had stronger cold resistance and disease resistance, higher nitrogen (2.85%-3.00%), phosphorus (0.31%- 0.34%) and potassium (3.11%-3.85%) contents than those of the other varieties. At the maturity stage, the medium and late-maturing varieties had higher seed number (7.34-7.85) per pods, 1000-grain weight (3.35-3.42 g), and seed yield (333.01-346.52 kg/hm 2) were also observed. In general, the three medium- and late-maturing varieties of Shengzhong, Yujiang and Yesha species exhibit excellent characters as green manure in Fujian, and thus can be used as the propagation of improved varieties and breeding materials.

Key words: Astragalus sinicus L., variety, phenophase, biomass, disease resistance

CLC Number: