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中国农学通报

中国农学通报 ›› 2018, Vol. 34 ›› Issue (24): 1-5.doi: 10.11924/j.issn.1000-6850.casb17070079

所属专题： 小麦

• 农学 农业基础科学 •    下一篇

小麦化学杀雄剂SC2011 施药剂量效果的初步研究

郑建敏#,罗江陶#,蒲宗君,李式昭,刘于斌   

  1. 四川省农业科学院作物研究所/农业部西南地区小麦生物学与遗传育种重点实验室,四川省农业科学院作物研究所/农业部西南地区小麦生物学与遗传育种重点实验室,四川省农业科学院作物研究所/农业部西南地区小麦生物学与遗传育种重点实验室,四川省农业科学院作物研究所/农业部西南地区小麦生物学与遗传育种重点实验室,四川省凉山州西昌农科所
  • 收稿日期:2017-07-17 修回日期:2017-11-21 接受日期:2017-11-25 出版日期:2018-08-28 发布日期:2018-08-28
  • 通讯作者: 郑建敏#
  • 基金资助:
    国家重点研发计划项目“小麦杂种优势利用技术与强优势杂交种创制”(2016YFD0101600)；四川省科技计划项目“高产多抗杂交小麦新品 种选育及产业化开发”(2016NYZ0012)；四川省财政创新能力提升工程专项资金项目“小麦种质资源创新和突破性新品种培育”(2016ZYPZ-016)；四 川省育种攻关项目“突破性麦类育种材料与方法创新”(2016NYZ0030)；四川省青年科技创新研究团队资助项目“优质专用小麦新品种培育四川省青 年科技创新研究团队”(2014TD0014)。

Wheat Chemical Hybridization Agent SC2011: Preliminary Study on Dosage Effect

  • Received:2017-07-17 Revised:2017-11-21 Accepted:2017-11-25 Online:2018-08-28 Published:2018-08-28

摘要： 为明确新型小麦化学杀雄剂SC2011在四川生态条件下的诱导杀雄效果和最佳施用剂量,本研究选用3个高产抗病品种(蜀麦126、川麦601和川麦602),设置6个剂量水平(15L/hm2,30L/hm2,45L/hm2,60L/hm2,75L/hm2和90L/hm2)和1个对照(纯水,即0L/hm2)处理,对不同基因型品种的诱导杀雄效果进行初步比较研究。结果表明,随着施药剂量的增加,不育度整体呈上升趋势,当施药剂量≥30L/hm2时,不育度>98%；当施药剂量≥45L/hm2时,不育度>99%；施药剂量为45L/hm2-90L/hm2时,不育度虽略有变化,但无显著差异。不同基因型材料饱和授粉结实率随施药剂量的增加整体呈下降趋势,然在剂量<45L/hm2时,异花授粉结实率(国内法)均与对照相当,表明在该处理剂量下柱头活性未受影响。从减少副作用、降低成本和效果最佳的角度考虑,30L/hm2是最佳施药剂量水平。SC2011对不同品种的诱导不育具有普遍适用性(广谱性)。

Abstract: The paper aims to clarify the effects of wheat chemical hybridization agent SC2011 on male sterility and the optimum application dosage under Sichuan ecological condition. We compared the induced male sterility effects of different genotype varieties by using 3 varieties ‘( Shumai 126’,‘Chuanmai 601’and ‘Chuanmai 602’) and setting 6 dosage levels (15 L/hm2, 30 L/hm2, 45 L/hm2, 60 L/hm2, 75 L/hm2 and 90 L/hm2) and 1 control (water, 0 L/hm2). The results showed that: with the increase of dosage, the sterile degree had an upward trend; when the dosage was no less than 30 L/hm2, the sterile degree was>98%; when the dosage was equal to or greater than 45 L/hm2, the sterile degree was>99%; while the dosage between 45 L/hm2 and 90 L/hm2, the sterile degree had a little change, with no significant difference; seed setting rate (domestic) under artificial saturation pollination condition decreased with the increase of the overall dosage, but at dosage of <45 L/hm2, seed setting rate was similar to that of the control, indicating that stigma activity was not affected. 30 L/hm2 is the best dosage level in consideration of reducing side-effect and cost and optimizing effect. SC2011 has universal applicability to different genotype varieties (broad spectrum).