中国农业科技导报 ›› 2022, Vol. 24 ›› Issue (9): 58-65.DOI: 10.13304/j.nykjdb.2021.0883

• 生物技术 生命科学 • 上一篇    下一篇

小白菜镉含量基因型与环境效应研究

郑龙()   

  1. 福建省莆田市农业技术推广站,福建 莆田 351100
  • 收稿日期:2021-10-18 接受日期:2022-01-18 出版日期:2022-09-15 发布日期:2022-10-11
  • 作者简介:郑龙 E-mail:ptagri@163.com

Research on Effects of Genotypes and Environments on Cd Contents in Pakchoi

Long ZHENG()   

  1. Putian Agricultural Technology Extension Station,Fujian Putian 351100,China
  • Received:2021-10-18 Accepted:2022-01-18 Online:2022-09-15 Published:2022-10-11

摘要:

为明确小白菜镉(Cd)含量的差异及基因型、环境的效应,利用AMMI(additive main multiplicative interaction)模型对福建省莆田市6个地点种植的6个小白菜品种的Cd含量进行分析。结果表明,不同品种小白菜在不同试点的Cd含量变异范围较大,小白菜地上部和地下部及试点土壤Cd含量间相关性不显著;基因型、环境及两者间互作效应对小白菜Cd含量存在极显著影响。对于小白菜地上部和地下部Cd含量,环境效应占总效应的比例分别为87.04%和65.97%,基因型与环境间的互作效应次之,基因型效应最小;表明环境差异是引起Cd含量变化的主要原因,选择适宜的种植地点是降低小白菜Cd含量的主要途径,因此为减少小白菜Cd含量,采取地区控制和品种搭配相结合的策略是最为有效的途径。根据Cd含量的表型值、AMMI双标图和稳定性分析结果,品种‘田园青冠’在兴沙村和东大村试点的小白菜地上部Cd含量低且稳定,生产上可优先选择。

关键词: 小白菜, 镉, 基因型, 环境, AMMI模型

Abstract:

To research the differences of the Cd contents in pakchoi, and the effects of genotypes and environments, the AMMI model was utilized to analyze the Cd contents of 6 varieties of pakchoi planted in 6 locations in Putian, Fujian Province. The results suggested that the Cd contents in different varieties planted in different pilot fields varied in a large range. There were no significant correlations among the Cd contents in the aboveground parts, the underground parts and the soil of the pilot fields. However, genotypes, environments and their interactions showed very significant effects on Cd contents of pakchoi. And the environmental effects on Cd contents of the aboveground parts and the underground parts accounted for 84.07% and 65.97%, respectively, which indicated that the environmental effect was the main cause leading to the differences of Cd contents. Thus, the main approach for reducing the Cd content in pakchoi was to choose appropriate planting locations. The interaction effect of genotypes and environments was second, and the effect of genotypes was the least. Under comprehensive consideration, it was most efficient to reduce the Cd content of pakchoi by adopting the strategy of combining region controlling and variety blending. According to the phenotypic value of the Cd content, the AMMI biplot and stability analysis results, the Cd contents of pakchoi ‘Tianyuanqingguan’ in Xingsha and Dongda villages were low and stable, which could be the priority choice in production.

Key words: Pakchoi, cadmium, genotype, environment, AMMI model

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