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草业学报 ›› 2022, Vol. 31 ›› Issue (5): 76-83.DOI: 10.11686/cyxb2021099

• 研究论文 • 上一篇    下一篇

现蕾期叶面喷素对紫云英籽粒数和籽粒重的影响

刘春增1(), 郑春风1(), 聂良鹏2, 张琳2, 张济世1, 吕玉虎2, 李本银1, 曹卫东3()   

  1. 1.河南省农业科学院植物营养与资源环境研究所,河南 郑州 450002
    2.信阳市农业科学院,河南 信阳 464000
    3.中国农业科学院农业资源与农业区划研究所,北京 100081
  • 收稿日期:2021-03-16 修回日期:2021-05-12 出版日期:2022-05-20 发布日期:2022-03-30
  • 通讯作者: 曹卫东
  • 作者简介:Corresponding author. E-mail: caoweidong@caas.cn
    刘春增(1967-),男,河南平顶山人,研究员。E-mail: liucz321@ aliyun.com
    郑春风(1988-),女,河南平顶山人,助理研究员,博士。E-mail: 1477859207@qq.com第一联系人:共同第一作者These authors contributed equally to this work.
  • 基金资助:
    国家重点研发计划(2021YFD1700200);河南省农业科学院自主创新基金项目(2022ZC29);财政部和农业农村部:国家现代农业产业技术体系(CARS-22);河南省农业科学院科技创新团队(2022TD37);河南省农业科学院优秀青年科技基金项目(2020YQ30)

Effects of foliar spray with various bioactive compounds on seed number and seed weight of Chinese milk vetch (Astragalus sinicus

Chun-zeng LIU1(), Chun-feng ZHENG1(), Liang-peng NIE2, Lin ZHANG2, Ji-shi ZHANG1, Yu-hu LV2, Ben-yin LI1, Wei-dong CAO3()   

  1. 1.Institute of Plant Nutrition Agricultural Resources and Environmental Sciences,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China
    2.Xinyang Academy of Agricultural Sciences,Xinyang 464000,China
    3.Institute of Agriculture Resources and Regional Planning,Chinese Academy of Agricultural Sciences,Beijing 100081,China
  • Received:2021-03-16 Revised:2021-05-12 Online:2022-05-20 Published:2022-03-30
  • Contact: Wei-dong CAO

摘要:

以“信紫1号”为供试材料,清水为对照,通过花期和成熟期对紫云英主茎不同花序位的花序结实性状测定,研究紫云英现蕾期叶面分别喷施多效唑(PP333)、6-苄氨基腺嘌呤(6-BA)、芸苔素内酯(BR)、海藻酸钠寡糖(AOS)、复合营养制剂(NCD)对紫云英籽粒数和籽粒重的调控效应,以期为提高紫云英种子产量和应用调控技术提供参考。结果表明:与对照相比,不同喷素处理均能提高紫云英不同花序位结荚率和荚果结实率,增加紫云英不同花序位的籽粒数和籽粒重。各喷素处理对紫云英各花序位籽粒数的促进效果以NCD处理最佳,其中,基、中、顶部花序位籽粒数较对照分别提高27.79%、29.35%、71.25%;对不同花序位籽粒重的促进效果也以NCD处理最佳,其中,基、中、顶部花序位籽粒重较对照分别提高27.18%、28.65%、71.05%。分析产量构成发现,现蕾期喷施NCD、PP333、BR、6-BA、AOS处理种子产量均显著高于对照,较对照分别提高29.73%、22.02%、19.02%、10.52%、10.01%,以NCD处理产量最高,达601.37 kg·hm-2。其中,PP333、6-BA处理增粒效果显著,而对籽粒增重效果不明显;BR、AOS处理籽粒增重效果显著,而对增粒效果不明显;NCD处理增粒增重效果均显著。综上,在现蕾期叶面喷素可显著促进紫云英种子产量的增加,以NCD作用效果最优,PP333、BR、6-BA、AOS依次次之。

关键词: 紫云英, 叶面喷素, 籽粒数, 籽粒重, 产量

Abstract:

The effects of various foliar sprays on Chinese milk vetch (Astragalus sinicus cv. Xinzi-1) seed number and seed weight at the squaring stage were studied in order to provide reference information for improving yield through use of chemical regulators. Foliar spraying of paclobutrazol (PP333), 6-benzylaminopurine (6-BA), brassinolide (BR), alginate oligosaccharides (AOS) and compound nutrition preparation (NCD) were performed at the squaring stage, while spraying water as the control. At the flowering and harvest stages, the seed setting was investigated for inflorescences at the basal, central, and apical inflorescence positions on the main stem. It was found that, compared with the water control, the various spray treatments improved the pod and seed setting rates in the examined inflorescence positions at flowering, and improved the seed number and seed weight in those inflorescence positions at harvest. NCD was the best treatment; the seed number at the basal, central and apical inflorescence positions was increased by 27.79%, 29.35% and 71.25%, respectively, and the seed weight at the same positions was increased by 27.18%, 28.65% and 71.05%, respectively, compared with the control. The seed yields under NCD, PP333, BR, 6-BA and AOS treatments were significantly higher than those of the control, with increases of 29.73%, 22.02%, 19.02%, 10.52% and 10.01%, respectively. The seed yield under NCD treatment was the highest, and was 601.37 kg·ha-1. Among the treatments, PP333 and 6-BA treatments induced significant increases in seed number, but no obvious effect on seed weight, while the BR and AOS treatments induced significant increases in seed weight, but not seed number. The NCD treatment induced significant effects both on seed number and seed weight. In summary, foliar spray of plant regulators at squaring stage significantly promoted increased seed yield and the NCD treatment has the greatest effect, followed by PP333, BR, 6-BA and AOS.

Key words: Chinese milk vetch, foliar spray, seed number, seed weight, yield