Journal of Zhejiang Agricultural Sciences ›› 2025, Vol. 66 ›› Issue (9): 2096-2101.DOI: 10.16178/j.issn.0528-9017.20240975

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Breeding innovation and high yield analysis of new wheat variety Luomai 76 with large grain and high yield

LI Tianqi1(), YUAN Qian1,*(), ZHAO Yongtao1, ZHANG Zhongzhou1, ZHEN Shicong1, WANG Junsen1, ZHANG Feng1, SUN Xianye1, LU Xiangdong2, MEI Ning2   

  1. 1. Luohe Academy of Agricultural Sciences, Luohe 462300, Henan
    2. Wuyang County Agricultural Technology Extension Center, Luohe 462300, Henan
  • Received:2024-12-20 Online:2025-09-11 Published:2025-10-14

Abstract:

Luomai 76 is a new wheat variety bred through multi-parental stepwise hybridization using synthetic wheat. Parental combinations were configured based on the principle of “complementing weaknesses with strong advantages”, and progeny selection was conducted using the principle of “focusing on key traits while broadly selecting complementary traits”. This approach aggregated the advantages of multiple parents to develop this new large-grain, high-yielding wheat variety. Its high-yielding potential and stability were evaluated using the genotype main effect plus genotype-by-environment interaction (GGE) biplot method and the best linear unbiased prediction (BLUP) method. The results showed that Luomai 76 possesses outstanding high-yielding potential, with its two-year average yield and BLUP values ranking among the top two in its test group. The GGE biplot also indicated its excellent high-yielding potential and relatively good stability. Analysis of the three yield components revealed that the number of spikes per 667 m2 and the number of grains per spike in Luomai 76 were near the average of the tested varieties. However, its 1 000-grain weight was significantly higher than the average and remained stable over the two years. The increase in 1 000-grain weight is the primary factor contributing to its high yield.

Key words: Luomai 76, distant hybridization, high-yielding potential, Luohe, wheat

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