Section of Plant Pathology & Nematology, Department of Botany, Aligarh Muslim University, Aligarh, 202002, U.P., India.
Section of Plant Pathology & Nematology, Department of Botany, Aligarh Muslim University, Aligarh, 202002, U.P., India.
Exp Parasitol. 2021 Nov;230:108176. doi: 10.1016/j.exppara.2021.108176. Epub 2021 Nov 2.
Foliar spray of silicon dioxide (SiO NPs), zinc oxide (ZnO NPs) and titanium dioxide (TiO NPs) nanoparticles were used for the management of Meloidogyne incognita, Alternaria dauci and Rhizoctonia solani disease complex of carrot. Foliar spray of SiO NPs/ZnO NPs or TiO NPs increased plant growth attributes, chlorophyll and carotenoid of carrot. Foliar spray of 0.10 mg ml SiO NPs caused the highest increase in plant growth, chlorophyll and carotenoid content of leaves followed by spray of 0.10 mg ml ZnO NPs 005 mg ml SiO NPs, 0.05 mg ml ZnO NPs, 0.10 mg ml TiO NPs and 0.05 mg ml TiO2 NPs. Use of SiO NPs caused a higher reduction in root galling, nematode multiplication and disease indices followed by ZnO NPs and TiO NPs. Two principal components analysis showed a total of 97.84% overall data variance in plants inoculated with single pathogen and 97.20% in plants inoculated with two or more pathogens. Therefore, foliar spray of SiO NPs appears interesting for the management of disease complex of carrot.
叶面喷施二氧化硅(SiO NPs)、氧化锌(ZnO NPs)和二氧化钛(TiO NPs)纳米粒子可用于防治胡萝卜上的根结线虫、番茄早疫病菌和立枯丝核菌复合病。叶面喷施 SiO NPs/ZnO NPs 或 TiO NPs 可提高胡萝卜的生长特性、叶绿素和类胡萝卜素含量。叶面喷施 0.10 mg/ml SiO NPs 对叶片生长、叶绿素和类胡萝卜素含量的促进作用最大,其次是喷施 0.10 mg/ml ZnO NPs、0.05 mg/ml SiO NPs、0.05 mg/ml ZnO NPs、0.10 mg/ml TiO NPs 和 0.05 mg/ml TiO2 NPs。与 ZnO NPs 和 TiO NPs 相比,SiO NPs 能更有效地减少根结瘤、线虫繁殖和病害指数。两个主成分分析表明,接种单一病原菌的植株总数据方差为 97.84%,接种两种或两种以上病原菌的植株总数据方差为 97.20%。因此,叶面喷施 SiO NPs 似乎是防治胡萝卜复合病的一种有趣方法。