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中国农学通报 ›› 2023, Vol. 39 ›› Issue (33): 8-13.doi: 10.11924/j.issn.1000-6850.casb2023-0150

• 农学·农业基础科学 • 上一篇    下一篇

抗倒剂对优质稻产量和抗倒伏能力的影响

邹丹1(), 唐启源2, 黄益国1, 刘龙生1, 方升亮1, 吕广动1, 旷娜3, 罗友谊4, 毛瑞清1(), 张明1()   

  1. 1 衡阳市农业科学院,湖南衡阳 421200
    2 湖南农业大学农学院,长沙 410128
    3 湖南省水稻研究所,长沙 410128
    4 衡山县农业局,湖南衡阳 421200
  • 收稿日期:2023-02-28 修回日期:2023-07-05 出版日期:2023-11-25 发布日期:2023-11-22
  • 通讯作者: 毛瑞清,男,1969年出生,高级农艺师,本科,主要从事再生稻高产优质栽培。通信地址:421200 湖南省衡阳市衡阳县,Tel:18373457640,E-mail:827183814@qq.com。张明,男,1988年出生,农艺师,本科,主要从事再生稻高产优质栽培。通信地址:421200 湖南省衡阳市衡阳县,Tel:15074843853,E-mail:1009220380@qq.com。
  • 作者简介:

    邹丹,男,1996年出生,农艺师,硕士,主要从事再生稻高产优质栽培。通信地址:421200 湖南省衡阳市衡阳县,Tel:16607470855,E-mail:

  • 基金资助:
    国家水稻产业技术体系岗位专家项目(CARS-01-85); 衡阳市基础研究项目(202250045246)

Effects of Anti-pour Agent on Yield and Lodging Resistance of High Quality Rice

ZOU Dan1(), TANG Qiyuan2, HUANG Yiguo1, LIU Longsheng1, FANG Shengliang1, LV Guangdong1, KUANG Na3, LUO Youyi4, MAO Ruiqing1(), ZHANG Ming1()   

  1. 1 Hengyang Academy of Agricultural Sciences, Hengyang, Hunan 421200
    2 College of Agronomy, Hunan Agricultural University, Changsha 410128
    3 Hunan Rice Research Institute, Changsha 410128
    4 Agricultural Bureau of Hengshan, Hengyang, Hunan 421200
  • Received:2023-02-28 Revised:2023-07-05 Published-:2023-11-25 Online:2023-11-22

摘要:

倒伏是制约水稻生产的重要因素之一,优质稻倒伏现象更为突出。为了完善优质稻抗倒栽培技术,本研究以广东省的代表优质稻品种‘美香占2号’作为试验材料,设置了3个不同的施氮量,采用两因素随机区组设计,探究抗倒剂‘不倒汉’的抗倒伏效果。结果表明,抗倒剂降低了齐穗期和成熟期的茎叶重和总干物质重,增加了经济系数,具有增产效果。降低了水稻整个生育期的株高,均达到显著水平,在低肥下,降株高效果更显著。降低了蜡熟期第二和第三基节的长度和倒伏指数,其中第三基节达到了显著水平,还显著降低了成熟期各节间的长度、田间倒伏指数、倒三节和倒四节的弯曲力矩,对倒三和倒四节间的抗折力和倒伏指数也有一定的降低,没有达到显著水平。综上,抗倒剂‘不倒汉’能显著增强优质稻的抗倒伏能力,同时具有增产效果,可以推广应用。

关键词: 水稻, 抗倒剂, 优质稻, 产量, 倒伏

Abstract:

Lodging is one of the important factors restricting rice production, and the lodging of high quality rice is more prominent. In order to improve the anti lodging cultivation technique of high-quality rice, this study used the representative high-quality rice variety ‘Meixiangzhan 2’ in Guangdong Province as the experimental material, set up three different nitrogen application rates, and used two factors randomized block design to explore the anti lodging effect of the anti-pour agent ‘Budaohan’. The results showed that the anti-pour agent reduced the stem and leaf weight and the total dry matter weight during the full heading and mature stages, but increased the economic coefficient, and had the effect of increasing yield. The height of rice during the entire growth period was reduced, reaching a significant level. Under low fertilizer conditions, the effects of reducing plant height were more significant. The length and lodging index of the second and third basal nodes during the wax ripening period were reduced, with the third basal node reaching a significant level. The length of each node during the ripening period, the lodging index in the field, and the bending moment of the third and fourth nodes were also significantly reduced. The bending strength and lodging index of the third and fourth nodes were also reduced to some extent, but didn’t reach a significant level. In summary, the anti-pour agent ‘Budaohan’ could significantly enhance the anti lodging ability of high-quality rice, and had the effect of increasing yield, which could be promoted and applied.

Key words: rice, anti-pour agent, high quality rice, yield, lodging