文献类型： 外文期刊

作者： Gao Hua-wei ¹ ; Sun Ru-jian ¹ ; Yang Meng-yuan ⁴ ; Yan Long ⁵ ; Hu Xian-zhong ² ; Fu Guang-hui ⁶ ; Hong Hui-long ¹ ; Guo Bing-fu ⁷ ; Zhang Xiang ⁴ ; Liu Li-ke ⁴ ; Zhang Shu-zhen ¹ ; Qiu Li-juan ¹ ;

作者机构： 1.Northeast Agr Univ, Minist Educ, Key Lab Soybean Biol, Coll Agr, Harbin 150030, Peoples R China

2.Chinese Acad Agr Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Inst Crop Sci, Beijing 100081, Peoples R China

3.Hulun Buir Inst Agr Sci, Zhalantun 162650, Peoples R China

4.Liaocheng Univ, Coll Life Sci, Liaocheng 252059, Shandong, Peoples R China

5.Hebei Acad Agr & Forestry Sci, Inst Cereal & Oil Crops, Hebei Lab Crop Genet & Breeding, Shijiazhuang 050035, Hebei, Peoples R China

6.Suzhou Acad Agr Sci, Suzhou 234000, Peoples R China

7.Jiangxi Acad Agr Sci, Crops Res Inst, Nanchang Branch Natl Ctr Oil Crops Improvement, Jiangxi Prov Key Lab Oil Crops Biol, Nanchang 330200, Jiangxi, Peoples R China

关键词： soybean; plant architecture; mutant; petiole length; breeding of new lines

期刊名称：JOURNAL OF INTEGRATIVE AGRICULTURE （ 影响因子：4.384； 五年影响因子：4.021 ）

ISSN： 2095-3119

年卷期： 2022 年 21 卷 9 期

页码：

收录情况： SCI

摘要： Phenotypic screening of soybean germplasm suitable for high planting density is currently the most viable strategy to increase yield. Previous studies have shown that soybean varieties with dwarf features and a short petiole often exhibit a compact plant architecture which could improve yield through increased planting density, although previously reported short petiole accessions were ultimately not usable for breeding in practice. Here, we established a method to assess petiole length and identified an elite mutant line, M657, that exhibits high photosynthetic efficiency. The agronomic traits of M657 were evaluated under field conditions, and appeared to be stable for short petiole across seven locations in northern, Huang-Huai, and southern China from 2017 to 2018. Compared with the Jihuang 13 wild type, the mutant M657 was shorter in both petiole length and plant height, exhibited lower total area of leaf, seed weight per plant and 100-seed weight, but had an increased number of effective branches and the growth period was prolonged by 2-7 days. Using M657 as a parental line for crosses with four other elite lines, we obtained four lines with desirable plant architecture and yield traits, thus demonstrating the feasibility of adopting M657 in breeding programs for soybean cultivars of high density and high yield.