Comparison of Genetic Gains of Agronomical Traits from Different Selection Methods in Soybean

Date Received: Feb 18, 2019

Date Published: Mar 12, 2019

DOI: https://doi.org/10.31817/vjas.2018.1.4.04

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Issue: Vol. 1 No. 4 (2018): Vietnam Journal of Agricultural Sciences

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ENGINEERING AND TECHNOLOGY

How to Cite:

Hang, V., Hoa, V., Cham, L., Tuan, N., Ngoc, P., & Thao, N. (2019). Comparison of Genetic Gains of Agronomical Traits from Different Selection Methods in Soybean. Vietnam Journal of Agricultural Sciences, 1(4), 281–288. https://doi.org/10.31817/vjas.2018.1.4.04

Comparison of Genetic Gains of Agronomical Traits from Different Selection Methods in Soybean

Vu Thi Thuy Hang (*) 1 , Vu Dinh Hoa 1 , Le Thi Tuyet Cham 1 , Nguyen Thanh Tuan 1 , Pham Thi Ngoc 1   , Nguyen Phuong Thao 2

  • Corresponding author: vtthang.nh@vnua.edu.vn
  • 1 Faculty of Agronomy, Vietnam National University of Agriculture, Hanoi 131000, Vietnam
  • 2 Crop Research and Development Institute, Vietnam National University of Agriculture, Hanoi 131000, Vietnam

    • Keywords

    bulk method, genetic gain, modified bulk method, selection

    Abstract


    This study aimed to compare the genetic gains of two different selection methods for agronomic traits in soybean. A population from the cross of VI045032 x 4904 (LSB10) was advanced using the bulk method and modified bulk method to the F6 generation. Measured traits were growth duration, plant height, height of the first pod node, number of pods per plant, the percentage of 3-seeded pods, 100-seed weight, individual yield, and yield. Both methods were equally efficient and could be used for segregating and the stabilizing phase of progenies/populations of soybean crosses. However, the bulk method appeared to be more efficient for the improvement of yield-related traits while the modified bulk method was more efficient for the improvement of morphological traits. Â