S. Chinnadurai, P. Chandramani, Mookiah Shanthi, P. Mahendran, Raman Renuka
{"title":"Silicon and growth regulator induced defence against maize fall armyworm, Spodoptera frugiperda (J.E. Smith)","authors":"S. Chinnadurai, P. Chandramani, Mookiah Shanthi, P. Mahendran, Raman Renuka","doi":"10.1080/10426507.2023.2222207","DOIUrl":null,"url":null,"abstract":"Abstract A microplot field experiment was conducted to study the effect of silicon sources and growth regulator against maize fall armyworm, Spodoptera frugiperda at Thoppur village of Virudhunagar district during Rabi, 2021-22. Basal application of different doses of calcium silicate and foliar application of silicic acid and potassium silicate were carried out. The results revealed that 150 kg of calcium silicate/ha + 0.2% silicic acid at 15 d after sowing (DAS) + 50 ppm GA at 30 DAS was found to be effective in reducing fall armyworm (FAW) population (1.23 larvae/plant) followed by treatment with 75 kg of calcium silicate/ha + 0.2% silicic acid at 15 DAS + 50 ppm GA at 30 DAS (1.27 larvae/plant). Regarding leaf and cob damage, the treatment with 150 kg of calcium silicate/ha + 0.2% silicic acid at 15 DAS + 50 ppm GA at 30 DAS was found to be most effective and significantly superior over all other treatments by recording lowest mean leaf damage score of 1.63/plant and mean cob damage score of 1.13/plant followed by the treatment with 75 kg of calcium silicate/ha + 0.2% silicic acid at 15 DAS + 50 ppm GA at 30 DAS with 1.66 leaf score/plant and 1.35 cob score/plant. Graphical abstract","PeriodicalId":20043,"journal":{"name":"Phosphorus Sulfur and Silicon and The Related Elements","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Phosphorus Sulfur and Silicon and The Related Elements","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/10426507.2023.2222207","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract A microplot field experiment was conducted to study the effect of silicon sources and growth regulator against maize fall armyworm, Spodoptera frugiperda at Thoppur village of Virudhunagar district during Rabi, 2021-22. Basal application of different doses of calcium silicate and foliar application of silicic acid and potassium silicate were carried out. The results revealed that 150 kg of calcium silicate/ha + 0.2% silicic acid at 15 d after sowing (DAS) + 50 ppm GA at 30 DAS was found to be effective in reducing fall armyworm (FAW) population (1.23 larvae/plant) followed by treatment with 75 kg of calcium silicate/ha + 0.2% silicic acid at 15 DAS + 50 ppm GA at 30 DAS (1.27 larvae/plant). Regarding leaf and cob damage, the treatment with 150 kg of calcium silicate/ha + 0.2% silicic acid at 15 DAS + 50 ppm GA at 30 DAS was found to be most effective and significantly superior over all other treatments by recording lowest mean leaf damage score of 1.63/plant and mean cob damage score of 1.13/plant followed by the treatment with 75 kg of calcium silicate/ha + 0.2% silicic acid at 15 DAS + 50 ppm GA at 30 DAS with 1.66 leaf score/plant and 1.35 cob score/plant. Graphical abstract