赵加涛 杨向红 付正波 字尚永 刘猛道

摘要 通过在大麦分蘖盛期、孕穗期、扬花灌浆期喷施1～3次芸乐收（0.01%芸苔素内脂可溶性液剂10 mL+250 g/L吡唑醚菌酯乳油15 mL+BD助剂15 g），研究喷施芸乐收对冬大麦主要农艺性状和产量的影响。结果表明，喷施芸乐收对大麦产量构成因素具有促进作用，有效穗增加8万～24万/hm2，穗实粒数增加1.2～2.6粒，千粒重增加0.1～1.5 g，白粉病减轻1级;喷施芸乐收具有增产作用，比对照增产766.6～1 099.9 kg/hm2，增加11.9%～17.0%，增收1 260.0～1 510.2元/hm2;增加产量与喷施次数呈正相关，投入产出比与喷施次数呈负相关;喷施一次时选择扬花灌浆期效果最佳，喷施2次时，分蘖盛期+扬花灌浆期组合最佳。

关键词 植物生长调节剂;芸乐收;大麦;农艺性状;产量

中图分类号 S-482.8  文献标识码 A  文章编号 0517-6611（2021）13-0150-03

doi：10.3969/j.issn.0517-6611.2021.13.036

开放科学（资源服务）标识码（OSID）：

Effect of Plant Growth Regulator Yunleshou on Main Agronomic Characters and Yield of Barley

ZHAO Jia tao， YANG  Xiang hong， FU Zheng bo et al

（Baoshan Institute of Agricultural Sciences， Baoshan， Yunnan 678000）

Abstract By spraying 1 to 3 times Yunleshou （0.01% brassinolide SL 10 mL + 250 g/L pyraclostrobin EC 15 mL + BD additives 15 g ） in the barley peak tillering period， booting stage and bloom filling stage， the effect of spraying Yunleshou on the main agronomic characteristics and yield of winter barley was studied. The results showed that spraying Yunleshou had a promoting effect on the yield components of barley. The effective ears increased by 80 000 to 240 000/hm2， the number of ears increased by 1.2 to 2.6， the thousand grain weight increased by 0.1 to 1.5 g， and powdery mildew was reduced level 1. Spraying Yunleshou had the effect of increasing yield， which was an increase of  766.6-1 099.9 kg/hm2， an increase of 11.9%-17.0%， and an increase of 1 260-1 510.2 yuan/hm2 compared with the control.The increase in yield and the number of sprays were positive correlation， the input output ratio was negatively correlated with the number of spraying.When spraying once， the blooming grouting period had the best effect， and when spraying twice， the combination of tillering and blooming grouting period was the best.

Key words Plant growth regulator;Yunleshou;Barley;Agronomic trait;Yield

20世纪末，云南大学研制出广谱、高效、抗逆性强的新型植物生长调节剂——云大120，既有促进植物根系发育、种子萌发和幼苗生长的作用;又可提高叶绿素含量，增强光合作用;还有促进花粉授精增加坐果率和果实膨大的作用;更有改善植物生理代谢，增强抗逆性的作用[1]。前人研究表明，在冬麦、油菜、水稻、大豆等作物生长期内喷施云大120具有一定的增产作用[2-6]。21世纪中国绿业元集团研究出新型的植物生长调节剂芸乐收（0.01%芸苔素内脂可溶性液剂10 mL+250 g/L吡唑醚菌酯乳油15 mL+BD助剂15 g），该植物生长调节剂已广泛应用于多种作物。前人研究表明，在水稻、花生、棉花等作物生长期内喷施1～3次芸乐收，增产10%以上[7-13];同时，研究表明，喷施芸乐收不但能增加产量，还能防止病害，特別是对花生叶斑病及水稻纹枯病具有很好的防效[14-20]。……