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中国农学通报

中国农学通报 ›› 2017, Vol. 33 ›› Issue (4): 25-29.doi: 10.11924/j.issn.1000-6850.casb16040038

所属专题： 油料作物

• 农学 农业基础科学 • 上一篇    下一篇

敌草快对成熟期胡麻脱水和种子质量的影响

冯学金,杨建春,郭秀娟,王利琴   

  1. 山西省农业科学院高寒区作物研究所,山西省农业科学院高寒区作物研究所,山西省农业科学院高寒区作物研究所,山西省农业科学院高寒区作物研究所
  • 收稿日期:2016-04-07 修回日期:2017-01-17 接受日期:2016-06-30 出版日期:2017-02-10 发布日期:2017-02-10
  • 通讯作者: 冯学金
  • 基金资助:
    山西省回国留学人员科研资助项目“优质、高产、抗旱胡麻新品种选育”(2015-111)；国家胡麻产业技术体系大同综合试验站(CARS-17- SYZ-9)；山西省农科院攻关项目“氮磷对胡麻茎叶中生理指标及产量构成因子的影响”(YGG1520)。

Effect of Diquat on Dehydration and Seed Quality of Ripening Flax

  • Received:2016-04-07 Revised:2017-01-17 Accepted:2016-06-30 Online:2017-02-10 Published:2017-02-10

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摘要： 为适应机械化收获的需要,以胡麻品种“晋亚12号”为材料,研究了化学催熟剂敌草快对胡麻植株脱水和胡麻种子质量的影响。在80%的胡麻蒴果变为黄褐色时,进行田间喷施敌草快试验,测定胡麻植株、籽粒含水量和发芽率、千粒重、脂肪酸组成等品质指标。结果表明：敌草快水剂喷施6d后,胡麻脱水效果显著,植株和籽粒含水量分别为14.2％和4.2％,与对照相比,植株和籽粒含水量分别下降48.36％和39.13％。同时,喷施敌草快对胡麻种子千粒重和发芽率没有显著影响,但能显著提高胡麻含油率和亚麻酸含量,并显著降低油酸和硬脂酸含量,从而促进胡麻品质的提高。因此,建议加快敌草快在胡麻催熟用途方面的农药登记,推进我国胡麻全程机械化技术的应用。

关键词: 食性, 食性, 遗传改良, 食欲, 遗传调控, 多态性

Abstract: In order to facilitate machinery harvesting, flax cultivar‘Jinya12’was used to investigate the effect of diquat on dehydration and seed quality of flax. When 80% of bolls turned to be brown, flax plants were treated with diquat, and water content, germination rate, thousand-seed weight, fatty acids of flax seeds were measured. The results showed that, compared with the control (natural mature after water spray), plants and seeds under diquat treatment were remarkably dehydrated after 6 days, the water content of plant and seed were 14.2% and 4.2% respectively, which were significantly declined by 48.36% and 39.13% respectively compared with that of the control. Diquat could significantly increase the contents of oil and linolenic acid, and significantly reduce the contents of oleic acid and stearic acid, although it had no significant effect on germination rate and thousand- seed weight. Therefore, it is proposed to promote diquat in herbicide registration as a ripener on flax.

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