Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2021, Vol. 42 ›› Issue (4): 958-965.DOI: 10.3969/j.issn.1000-2561.2021.04.007

• Germplasm Resources, Genetics & Breeding • Previous Articles     Next Articles

Screening of Sugarcane Parents and Crosses by Combining Ability Analysis

TAN Fang1, YANG Rongzhong1,2, JING Yan1, LEI Jingchao1, WANG Lunwang1, ZHOU Hui1,2,*()   

  1. 1. Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences / Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs / Guangxi Key Laboratory of Sugarcane Genetic Improvement / Sugarcane Research Center,Chinese Academy of Agricultural Sciences, Nanning, Guangxi 530007, China
    2. Province and Ministry Co-sponsored Collaborative Innovation Center of Sugar Industry, Nanning, Guangxi 530004, China
  • Received:2020-05-05 Revised:2020-06-29 Online:2021-04-25 Published:2021-04-25
  • Contact: ZHOU Hui

Abstract:

The objective of the present study was to understand the genetic characteristics and breeding potential of sugarcane crosses and parents, and to evaluate and screen sugarcane crosses and parents accurately. Family test of 146 crosses, including 126 parents, was carried on. Combining ability of the main traits of parents and crosses was calculated by R software, and cluster analysis was calculated by combining abilities of cane yield, brix, and sugar yield. 15 female parents, 13 male parents, and 13 crosses were selected with high combining ability of yield and sugar, respectively. Combining ability+cluster analysis method could be used to make a comprehensive analysis of the sugarcane parents and crosses. Crosses YT00-236×GT96-211, GT02-761×NJ03-218, and CP92-1167×CP07-2547 with better combining ability and comprehensive characters could be used as the productive crosses in sugarcane breeding.

Key words: sugarcane, family test, combining ability, cluster analysis

CLC Number: