[1]丁梦娇,李虎,邹丹,等.不同化学调控剂对再生稻生长发育及周年产量的影响[J].江苏农业学报,2023,(03):683-691.[doi:doi:10.3969/j.issn.1000-4440.2023.03.008]
　DING Meng-jiao,LI Hu,ZOU Dan,et al.Effects of different chemical regulation compounds on growth and annual yield of ratoon rice[J].,2023,(03):683-691.[doi:doi:10.3969/j.issn.1000-4440.2023.03.008]
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不同化学调控剂对再生稻生长发育及周年产量的影响()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2023年03期
页码:
683-691
栏目:
耕作栽培·资源环境
出版日期:
2023-06-30

文章信息/Info

Title:
Effects of different chemical regulation compounds on growth and annual yield of ratoon rice
作者:
丁梦娇1; 李虎2; 邹丹3; 罗友谊4; 郑华斌1; 王慰亲1; 唐启源1
(1.湖南农业大学农学院，湖南长沙410128；2.岳阳市农业科学研究院，湖南岳阳41400；3.衡阳市农业科学院，湖南衡阳421100；4.衡山县农业农村局，湖南衡阳421300)
Author(s):
DING Meng-jiao1; LI Hu2; ZOU Dan3; LUO You-yi4; ZHENG Hua-bin1; WANG Wei-qin1; TANG Qi-yuan1
(1.College of Agronomy， Hunan Agricultural University, Changsha 410128, China;2.Yueyang Academy of Agricultural Sciences, Yueyang 41400, China;3.Hengyang Academy of Agricultural Sciences， Hengyang 421100, China；4.Hengshan County Agricultural and Rural Bureau， Hengyang 421300, China)
关键词:
再生稻; 化学调控剂; 抗逆能力; 产量; 结实率
Keywords:
ratoon rice; chemical regulation compounds; stress resistance; yield; seed setting rate
分类号:
S482.8
DOI:
doi:10.3969/j.issn.1000-4440.2023.03.008
文献标志码:
A
摘要:
为提高再生稻抗逆能力和周年产量，本研究以杂交稻湘两优900为供试材料，于2019-2020年比较研究了喷施清水（CK）、喷施芸薹素内酯（T1）、喷施吡唑醚菌酯(T2)、喷施芸薹素内酯+吡唑醚菌酯（T3）、喷施芸薹素内酯+吡唑醚菌酯+助剂（T4）对再生稻生长发育和产量形成的影响。结果表明，4种化学调控剂处理均显著提高再生稻的周年产量，其中T4处理产量最高，显著高于其他处理（P<0.05）；从产量构成来看，T4处理显著提高了结实率和千粒质量（P<0.05）。此外，叶片SPAD值表明T4处理延缓了头季和再生季再生稻剑叶衰老，2020年受寒露风事件的影响，T4处理提高了再生季再生稻花粉活力、减轻了再生季再生稻稻瘟病、卡颈、稻曲病等危害。因此，T4处理提高了再生稻抗逆能力和延缓了叶片衰老，显著提高了结实率和千粒质量，进而提高了再生稻周年产量。
Abstract:
In order to screen chemical regulation compounds suitable for improving the stress resistance and annual yield of ratoon rice, this paper took hybrid rice Xiangliangyou 900 as the test material to conduct a comparative study in 2019-2020. The effects of spraying water (CK), brassinolide (T1), pyraclostrobin (T2), brassinolide + pyraclostrobin (T3), and brassinolide + pyraclostrobin + adjuvant (T4) on the growth and yield formation of ratoon rice were compared. The results showed that compared with CK, the four chemical regulator treatments all significantly increased the annual yield of ratoon rice. The yield under T4 treatment was the highest, which was significantly higher than that under other treatments (P<0.05). From the perspective of yield composition, T4 treatment significantly increased the seed setting rate and thousand-grain weight (P<0.05). In addition, leaf SPAD value indicated that T4 treatment could delay the aging of sword leaves in two seasons. Under the impact of cold dew wind weather in 2020, T4 treatment improved the pollen vitality and reduced the hazards of rice blast, rice stranglehold and rice false smut in the regeneration season. In conclusion, T4 treatment significantly increased seed setting rate and thousand grain weight, enhanced stress resistance and delayed leaf senescence, and then increased the annual yield of ratoon rice.

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备注/Memo

备注/Memo:
收稿日期：2023-01-06 基金项目：国家水稻产业技术体系岗位科学家项目(CARS-01-27) 作者简介：丁梦娇（1996-），女，湖南益阳人，硕士，主要研究方向为再生稻高产优质高效栽培理论与技术。（E-mail）1823303958@qq.com 通讯作者：唐启源，（E-mail）qytang@hunau.edu.cn
更新日期/Last Update: 2023-07-11