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中国农学通报 ›› 2024, Vol. 40 ›› Issue (8): 1-5.doi: 10.11924/j.issn.1000-6850.casb2023-0291

• 农学·农业基础科学 •    下一篇

种植密度对胡麻抗倒性和产量的影响

杨治伟(), 钱爱萍, 张炜, 曹秀霞()   

  1. 宁夏农林科学院固原分院,宁夏固原 756000
  • 收稿日期:2023-04-13 修回日期:2023-07-19 出版日期:2024-03-15 发布日期:2024-03-10
  • 通讯作者:
    曹秀霞,女,1966年出生,宁夏固原人,研究员,本科,主要从事胡麻育种及栽培技术方面的研究。通信地址:756000 宁夏固原市原州区西南新区义乌路200号,E-mail:
  • 作者简介:

    杨治伟,男,1992年出生,甘肃临洮人,研究实习员,硕士,主要从事胡麻育种及栽培技术方面的研究。通信地址:756000 宁夏固原市原州区西南新区义乌路200号,E-mail:

  • 基金资助:
    现代农业产业技术体系项目“国家特色油料产业技术体系-胡麻固原综合试验站”(CARS-14-2-28); 宁夏回族自治区农业关键技术攻关项目“胡麻抗倒伏技术研究”(2022-14); 宁夏回族自治区重点研发计划项目“胡麻耐除草剂和高亚麻酸新材料及新品种的选育研究”(2021BBF02020)

Effect of Planting Density on Lodging Resistance and Yield of Flax

YANG Zhiwei(), QIAN Aiping, ZHANG Wei, CAO Xiuxia()   

  1. Guyuan Branch of Ningxia Academy of Agriculture and Forestry Sciences, Guyuan, Ningxia 756000
  • Received:2023-04-13 Revised:2023-07-19 Published-:2024-03-15 Online:2024-03-10

摘要:

为了探索种植密度对胡麻抗倒性和产量的影响,以宁南山区水浇地大面积种植的胡麻品种‘宁亚21号’为材料,通过设置30×105、45×105、60×105、75×105株/hm2共4个种植密度,研究了不同种植密度下胡麻抗倒性和产量构成的变化。结果表明,随着种植密度的升高,茎秆抗折力、茎粗、茎壁厚度和木质素含量、有效结果数和单株产量逐渐降低,产量先升高后降低。相关性分析表明,茎秆抗折力与茎粗、茎壁厚度、冠重呈极显著正相关,木质素含量和倒伏率呈显著负相关。综合考虑增产增效,抗倒伏效果好、产量相对稳定,推荐宁南山区水浇地‘宁亚21号’的种植密度为45×105株/hm2

关键词: 胡麻, 密度, 产量, 抗倒性

Abstract:

To explore the effect of planting density on lodging resistance and yield of flax, ‘Ningya No. 21’ was selected as the material, which was planted in a large area of irrigated land in the southern mountainous area of Ningnan. Lodging resistance and yield composition under different planting densities were studied by setting four planting densities, including 30×105, 45×105, 60×105 and 75×105plants/hm2. The results showed that with the increase of planting density, the stem bending resistance, stem thickness, stem wall thickness, lignin content, effective fruit number and yield per plant decreased gradually, and the yield increased first and then decreased. Correlation analysis showed that the stem bending resistance was extremely correlated with stem diameter, stem wall thickness and crown weight, the lignin content and lodging rate were significantly negatively correlated. Considering the increase of yield and efficiency, good lodging resistance and relatively stable yield, it is recommended that the planting density of ‘Ningya No. 21’ in irrigated land in the southern mountainous area of Ningnan is 45×105 plants/hm2.

Key words: flax, density, yield, lodging resistance