Journal of Zhejiang Agricultural Sciences ›› 2025, Vol. 66 ›› Issue (1): 51-56.DOI: 10.16178/j.issn.0528-9017.20231102

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Study on the components of plant height in spring wheat in Xinjiang

ZHU Changan1(), HAO Quanyou2, LI Qianrong3, LI Zhaofeng4,*()   

  1. 1. Xinjiang Xinnong Modern Investment and Development Co., Ltd, Wujiaqu 831300, Xinjiang
    2. Institute of Agricultural Sciences, Third Division of Xinjiang Production and Construction Corps, Tumushuke 844000, Xinjiang
    3. Crop Research Institute, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan 750000, Ningxia
    4. College of Agriculture, Shihezi University, Shihezi 832000, Xinjiang
  • Received:2023-11-12 Online:2025-01-11 Published:2025-01-14

Abstract:

To explore the plant height, internode length, plant height component index and internodes component index in different ecological environments of Xinjiang spring wheat germplasm resources, and the relationship between plant height components and yield traits, and to provide a reference for shuttle breeding and plant type improvement, 40 spring wheat varieties from Xinjiang were selected for agronomic trait investigation. They were planted in three different ecological environments (Shihezi in Xinjiang, Yongning in Ningxia, and Yuanmou in Yunnan), and 12 plant height and yield-related traits were surveyed and analyzed.There were significant difference in plant height among different test sites and the plant height and internode length of wheat in Yongning was significantly higher than that in Shihezi. The first to the fifth internode length were 36.21, 19.97, 12.70, 8.14 and 4.16 cm, respectively, which accounting for 39.81%, 21.96%, 13.97%, 8.95% and 4.57% of plant height. The average plant height composition index was 0.62, and the first to fourth internode composition index was 0.64, 0.64, 0.61 and 0.67, respectively. The estimated broad sense heritability of 12 traits was in descending order: first internode composition index>first internode length>second internode length>panicle length>plant height>second internode composition index>fourth internode length>third internode length>third internode composition index>plant height composition index>fourth internode composition index>fifth internode length. Plant height, spike length, first internode length, second internode length, fourth internode length and first internode composition index showed significantly or extremely significant positive correlation among the three environments. In Shihezi, the first internode length was significantly positively correlated with spike length, and was extremely significantly positively correlated with grain weight per spike. In Yongning, the second internode length was significantly negatively correlated with spikelet number and grains per spike. The plant height traits could be effectively selected in shuttle breeding under the three ecological conditions, and increasing first internode length was beneficial to the improvement of yield traits.

Key words: spring wheat, plant height, plant architecture traits, yield

CLC Number: