CN116806824A - 一种杀菌促生长植物生长调节剂 - Google Patents
一种杀菌促生长植物生长调节剂 Download PDFInfo
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Abstract
本发明属于农药技术领域，具体涉及一种杀菌促生长植物生长调节剂。一种杀菌促生长植物生长调节剂，以质量百分比计有以下组分组成：杀菌活性成分0.5‑40％、植物生长调节剂活性成分0.01‑0.1％、润湿剂1‑6％、分散剂2‑10％，余量填料。本发明的杀菌促生长植物生长调节剂，其既含有杀菌活性成分，又含有植物生长调剂活性成分。使用时，杀菌活性成分可以提高对病害的防治效果，植物生长调剂活性成分可增强植物免疫能力，增强植物抗病能力，减少病原菌侵染，杀菌活性成分和植物生长调剂活性成分两者相互配合，可以保证农作物的健康生长，达到一喷多效的效果。
Description
技术领域
本发明属于农药技术领域，具体涉及一种杀菌促生长植物生长调节剂。
背景技术
香紫苏醇，CAS：515-03-7，分子式：C20H36O2，结构式如下：
香紫苏醇是合成龙涎香产品的理想原料，主要用于香紫苏内酯及降龙涎醚等天然龙涎香代用品的合成。现在技术中还报道有，香紫苏醇具有抗菌和杀菌活性，比如“天然源和厚朴酚和异黄腐酚的抗菌活性评价及(和)厚朴酚的复配增效研究”的文献中公开了紫苏醇和香紫苏醇对立枯丝核菌的EC50分别为97.52mg/L和10.76mg/L，对核盘菌的EC50分别为95.24mg/L和138.05mg/L，对灰葡萄菌的EC50分比为63.67mg/L和10.35mg/L，对禾谷镰刀菌的EC50分别为92.86mg/L和184.33mg/L，对稻瘟病菌的EC50分别为120.95mg/L和54.05mg/L。
复硝酚钠是一种高效植物生长调节剂，其能促进植物生长发育，改善产品品质，提高产量，同时还可以提高作物抗病、抗寒、抗旱、抗盐碱和抗倒伏等抗逆能力，广泛适用于粮食作物、经济作物及花卉等。另外，复硝酚钠可增强植物免疫能力，增强植物抗病能力，减少病原菌侵染，而且经过复硝酚钠的调节可促使受害植物快速恢复生长。
水稻纹枯病是由立枯丝核菌(Rhizoctonia solani)引起的真菌病害，是世界上重要的水稻病害之一。水稻纹枯病一般从分蘖期开始到抽穗前后发病最重，其危害叶鞘和叶片，严重时也能危害穗部和深入到茎秆，导致水稻结实率下降，千粒重降低，严重影响水稻产量。通过喷施合适的化学药剂可以有效防除农作物病害，减低病害对农作物生长和产量的影响。但很多时候这些化学药剂仅是防除靶标病菌，并不会促进农作物的生长发育或提高农作物抗病等抗逆能力，而且农作物病害对很多现有化学药剂都已产生不同程度的抗药性，导致防治效果降低。
发明内容
本发明的目的在于提供一种杀菌促生长植物生长调节剂，其既含有杀菌活性成分，又含有植物生长调剂活性成分复硝酚钠。使用时，杀菌活性成分可以提高对病害的防治效果，复硝酚钠可以可增强植物免疫能力，增强植物抗病能力，减少病原菌侵染，两者相互配合，可以保证农作物的健康生长。
为实现上述目的，本发明提供了如下技术方案：
一种杀菌活性成分，所述杀菌活性成分由香紫苏醇与氰烯菌酯、噻呋酰胺或戊唑醇复配而成；其中，
所述香紫苏醇与氰烯菌酯的质量比为1-7：19-1；
所述香紫苏醇与噻呋酰胺的质量比为1-20：13-1；
所述香紫苏醇与戊唑醇的质量比为1-42：8-1。
本发明还提供了一种杀菌促生长植物生长调节剂，以质量百分比计由以下组分组成：所述杀菌活性成分0.5-40％、植物生长调节剂活性成分0.01-0.1％、润湿剂1-6％、分散剂2-10％，余量填料。
将杀菌活性成分、植物生长调节剂活性成分、湿润剂、分散剂和填料混合均匀，然后经气流粉碎机粉碎过200-300目筛后再混合均匀，即得杀菌促生长植物生长调节剂，该制备方法为现有技术。
更为具体的，所述植物生长调剂活性成分为复硝酚钠。
更为具体的，所述润湿剂为十二烷基苯磺酸钠。
更为具体的，所述分散剂为木质素磺酸钠。
更为具体的，所述填料为硅藻土。
与现有技术相比，本发明具有如下有益效果：
(1)本发明的杀菌活性成分对防治农作物病害具有增效作用，可以提高对病害的防治效果，有利于降低农药的施用量。同时，本发明的杀菌活性成分可以延缓病原菌抗药性的发展。
(2)本发明的杀菌促生长植物生长调节剂既含有杀菌活性成分，又含有植物生长调剂活性成分。使用时，杀菌活性成分可以提高对病害的防治效果，植物生长调剂活性成分可增强植物免疫能力，增强植物抗病能力，减少病原菌侵染，杀菌活性成分和植物生长调剂活性成分两者相互配合，可以保证农作物的健康生长，达到一喷多效的效果。
具体实施方式
下面结合对本发明专利的技术方案进行清楚、完整的描述，显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域所属的技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1
一种杀菌促生长植物生长调节剂，以质量百分比计由以下组分组成：由香紫苏醇与噻呋酰胺按1：7的质量比复配而成的杀菌活性成分5％、复硝酚钠0.05％、十二烷基苯磺酸钠4％、木质素磺酸钠8％，余量硅藻土。
实施例2
一种杀菌促生长植物生长调节剂，以质量百分比计由以下组分组成：由香紫苏醇与氰烯菌酯按5：1的质量比复配而成的杀菌活性成分24％、复硝酚钠0.03％、十二烷基苯磺酸钠6％、木质素磺酸钠8％，余量硅藻土。
实施例3
一种杀菌促生长植物生长调节剂，以质量百分比计由以下组分组成：由香紫苏醇与戊唑醇按1：1的质量比复配而成的杀菌活性成分38％、复硝酚钠0.075％、十二烷基苯磺酸钠6％、木质素磺酸钠10％，余量硅藻土。
实施例4
1.供试菌株
采自水稻种植田内染病稻株，在实验室内分离和纯化，经鉴定为立枯丝核菌(Rhizoctonia solani)，保存于PDA培养基上，备用。
2.供试药剂
98％香紫苏醇原药(上海源叶生物科技有限公司)、95％氰烯菌酯原药(江苏省农药研究所股份有限公司)、96％噻呋酰胺原药(河北三农农用化工有限公司)、95％戊唑醇原药(内蒙古世杰化工有限公司)
以上供试药剂先用二甲基亚砜溶解，再用0.1％吐温-80水溶液稀释，配制成单剂母液，设置多组配比，各单剂母液和配比混剂均按等比方法设置5个质量浓度梯度。
3.试验方法
采用菌丝生长速率法。将45mL冷却至50℃的PDA培养基加入无菌锥形瓶中，吸取药液5mL加入上述锥形瓶中，充分摇匀后等量倒入5个直径为9cm的培养皿中，制成相应浓度的含药平板；并设不含药剂的处理作空白对照，每个质量浓度药液设置10个平板重复。用打孔器在供试菌株菌落边缘切取直径为5mm菌饼，接种于含药平板和空白对照平板中央，盖上皿盖后置于25℃恒温箱培养3d，用十字交叉法测量菌落直径，计算不同处理对菌丝生长抑制率。
4.数据分析：采用DPS软件进行数据统计分析，以杀菌剂浓度对数值为x，对应的菌丝生长抑制率几率值为y进行线性回归，得出毒力回归方程及药剂对靶标病菌的毒力EC50值，并根据孙云沛法计算共毒系数(CTC)。
5.测定结果
根据计算的共毒系数(CTC)评价药剂的增效作用，CTC≤80为拮抗作用，80＜CTC＜120为相加作用，CTC≥120为增效作用，结果见表1-3。
表1香紫苏醇和氰烯菌酯复配对立枯丝核菌的室内生物活性
由表1可知，香紫苏醇和氰烯菌酯复配后，在质量比为1-7：19-1内对立枯丝核菌的共毒系数均大于120，表现为增效作用，尤其是当质量比为1：7时，共毒系数达到了516.4357，增效作用尤其显著。
表2香紫苏醇和噻呋酰胺复配对立枯丝核菌的室内生物活性
由表2可知，香紫苏醇和噻呋酰胺复配后，在质量比为1-20：13-1内对立枯丝核菌的共毒系数均大于120，表现为增效作用。
表3香紫苏醇和戊唑醇复配对立枯丝核菌的室内生物活性
由表3可知，香紫苏醇和戊唑醇复配后，在质量比为1-42：8-1内对立枯丝核菌的共毒系数均大于120，表现为增效作用。
综上所述，香紫苏醇与氰烯菌酯、噻呋酰胺或戊唑醇复配时，对防治农作物病害具有增效作用，可以提高对病害的防治效果，有利于降低农药的施用量。同时，本发明的杀菌活性成分可以延缓病原菌抗药性的发展。
Claims (6)
1.一种杀菌活性成分，其特征在于，所述杀菌活性成分由香紫苏醇与氰烯菌酯、噻呋酰胺或戊唑醇复配而成；其中，
所述香紫苏醇与氰烯菌酯的质量比为1-7：19-1；
所述香紫苏醇与噻呋酰胺的质量比为1-20：13-1；
所述香紫苏醇与戊唑醇的质量比为1-42：8-1。
2.一种杀菌促生长植物生长调节剂，其特征在于，以质量百分比计由以下组分组成：权利要求1所述杀菌活性成分0.5-40％、植物生长调节剂活性成分0.01-0.1％、润湿剂1-6％、分散剂2-10％，余量填料。
3.根据权利要求2所述的杀菌促生长植物生长调节剂，其特征在于，所述植物生长调剂活性成分为复硝酚钠。
4.根据权利要求2所述的杀菌促生长植物生长调节剂，其特征在于，所述润湿剂为十二烷基苯磺酸钠。
5.根据权利要求2所述的杀菌促生长植物生长调节剂，其特征在于，所述分散剂为木质素磺酸钠。
6.根据权利要求2所述的杀菌促生长植物生长调节剂，其特征在于，所述填料为硅藻土。
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