Journal of Zhejiang Agricultural Sciences ›› 2026, Vol. 67 ›› Issue (6): 1419-1426.DOI: 10.16178/j.issn.0528-9017.20260141

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Breeding and yield factor analysis of the new wheat variety Hemai 45

REN Zichao1(), WANG Chong2, DONG Rusheng3, GAO Chunyan3, LI Yuhao2, LIN Kun1, GUO Fengzhi1,4, WANG Yingdang1, LI Sitong1,4, TIAN Shunshun1, GUO Lingyun1(), YUAN Yang1   

  1. 1.Institute of Wheat,Heze Academy of Agricultural Sciences,Heze 274000,Shandong
    2.Experimental and Demonstration Center,Heze Academy of Agricultural Sciences,Heze 274000,Shandong
    3.Juancheng County Agricultural Technology Extension Center,Heze 274000,Shandong
    4.National Center of Technology Innovation for Comprehensive Utilization of Saline-Alkali Land,Dongying 257000,Shandong
  • Received:2026-03-04 Online:2026-06-11 Published:2026-06-12
  • Contact: GUO Lingyun

Abstract:

Heze Academy of Agricultural Sciences conducted sexual hybridization with high yield and lodging resistance variety Luyuan 502 as female parent and disease resistance and cold resistance variety Shannong 22 as male parent. Following the pedigree method,after years of directional breeding,focusing on the yield traits,the excellent population materials of lodging resistance,disease resistance and cold resistance were screened. Finally,a new wheat variety Hemai 45 was bred. The variety was approved by Shandong Crop Variety Approval Committee in 2025(Lushenmai 20250007). This study systematically elucidated the breeding process,genetic background of parents,and stress-resistant and disease-resistant characteristics of Hemai 45,and formulated corresponding cultivation technical standards. By simultaneously applying the addition main effects and multiplication interaction (AMMI) model and the genotype main effect and genotype by environment interaction (GGE) biplot,the yield and related trait performance of this variety in the wheat variety demonstration trial in Heze City from 2023 to 2025 were analyzed,aiming to provide theoretical basis and technical reference for the promotion and application of Hemai 45 and the breeding of new high-yield and multi-resistant wheat varieties.

Key words: wheat, Hemai 45, breeding, yield

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