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中国农学通报 ›› 2024, Vol. 40 ›› Issue (3): 54-61.doi: 10.11924/j.issn.1000-6850.casb2023-0017

• 农学·农业基础科学 • 上一篇    下一篇

播种量对甘蓝型油菜直播栽培成株数及产量的影响

戴祥来(), 赵继献(), 胡权, 周炜华   

  1. 贵州省油菜研究所,贵阳 550008
  • 收稿日期:2023-01-28 修回日期:2023-03-16 出版日期:2024-01-17 发布日期:2024-01-17
  • 通讯作者:
    赵继献,男,1968年出生,贵州石阡人,研究员,硕士研究生,主要从事甘蓝型杂交油菜新品种选育及配套栽培技术研究。通信地址:565109 贵州省思南县塘头镇贵州省油菜研究所,Tel:13985864768,E-mail:
  • 作者简介:

    戴祥来,男,1991年出生,贵州松桃人,助理研究员,本科,主要从事甘蓝型杂交油菜新品种选育及配套栽培技术工作。通信地址:565109 贵州省思南县塘头镇贵州省油菜研究所,Tel:18285110427,E-mail:

  • 基金资助:
    贵州省油菜现代农业产业技术体系建设项目“油菜产业技术体系建设”(GZCYTX2019-0802); 贵州省科技计划项目“甘蓝型油菜千粒重遗传机制研究及大籽粒种质创制与应用”(黔科合支撑(2020)1Y106)

Effect on the Number of Adult Plants and Yield of Brassica napus: Sowing Rate Under Direct Seeding

DAI Xianglai(), ZHAO Jixian(), HU Quan, ZHOU Weihua   

  1. Rape Research Institute of Guizhou, Guiyang 550008
  • Received:2023-01-28 Revised:2023-03-16 Published-:2024-01-17 Online:2024-01-17

摘要:

为了研究常规油菜和杂交油菜不同播种量下产量及植株性状的变化,明确常规油菜和杂交油菜最佳播种量。以6个油菜品种为材料,设置不同播种量7个处理,分析播种量与成株数量、产量及植株性状的关系。结果表明,播种量对成株数量和产量有显著影响,随播种量增加油菜成株数量升高,产量先增后减;播量在B2处理(3.0 kg/hm2)时常规和杂交油菜产量最高,分别为2569.51 kg/hm2和2874.86 kg/hm2,在B6处理时两者产量相当,平均为2418.25 kg/hm2;常规油菜产量与角粒数(0.6871**)呈极显著正相关,杂交油菜产量与主花序长度(0.6275**)呈极显著正相关;菜籽品质主要由品种特性决定,与播种量无关。在本试验条件下,直播油菜获得高产的最宜播种量为3.00 kg/hm2

关键词: 播种量, 成株数, 杂交油菜, 常规油菜, 产量

Abstract:

The aims of this study were to study the changes of yield and plant traits of conventional rape and hybrid rape under different seeding amounts, and determine the optimum sowing amount of conventional rapeseed and hybrid rapeseed. Using 6 rape varieties as materials, 7 treatments were set up with different sowing amount. The relationships between seeding amount and the number of adult plants, yield and plant character were analyzed. The results showed that, seeding amount had significant effect on the number and yield of adult plants, the number of adult rapeseed plants increased with the increase of sowing amount, and the yield increased first and then decreased. The yield of conventional and hybrid rapeseed was the highest under B2 treatment (3.0 kg/hm2), which was 2569.51 kg/hm2 and 2874.86 kg/hm2 respectively. The yields of the two were similar in B6 treatment, with an average yield of 2418.25 kg/hm2. There was a significant positive correlation between conventional rapeseed yield and number per pod (0.6871**), and there was a highly significant positive correlation between the yield of hybrid rapeseed and the length of the main inflorescence (0.6275**). Rapeseed quality was mainly determined by variety characteristics, and had nothing to do with sowing quantity. Under the conditions of this experiment, the optimum sowing amount for high yield of direct sowing rape was 3.00 kg/hm2.

Key words: sowing rate, the number of adult plants, hybrid rape, conventional rape, yield