Influence of weather parameters on rice false smut disease progression in Tamil Nadu, India

Q3 Agricultural and Biological Sciences

Journal of Agrometeorology Pub Date : 2024-03-01 DOI:10.54386/jam.v26i1.2334

P. ANBAZHAGAN, M. THERADIMANI, V. RAMAMOORTHY, S. VELLAIKUMAR, S. JULIET HEBZIBA, R. OVIYA

{"title":"Influence of weather parameters on rice false smut disease progression in Tamil Nadu, India","authors":"P. ANBAZHAGAN, M. THERADIMANI, V. RAMAMOORTHY, S. VELLAIKUMAR, S. JULIET HEBZIBA, R. OVIYA","doi":"10.54386/jam.v26i1.2334","DOIUrl":null,"url":null,"abstract":"False smut of rice is an upcoming menace to rice production in India. In order to understand the intricate relationship between disease incidence and weather parameters, field experiments were conducted for three years (2019, 2020 and 2021) in two cropping seasons viz., late kharif (August to November) and rabi (October to January) at the Agricultural College and Research Institute (AC & RI), Madurai, Tamil Nadu. Results revealed that the disease severity had positive correlation with relative humidity (RH), wind speed (WS) and bright sunshine hours (BSS) and negative correlation with heavy rainfall (RF), evaporation (EP) and temperature. The pooled data analysis (2019 and 2020) for the late kharif and rabi cropping season revealed that disease severity was perfectly showed positive correlation with relative humidity (0.80) and wind speed (0.83) and negatively correlated with weekly maximum temperature (-0.78) and minimum temperature (-0.84). The step wise linear regression analysis was performed which revealed that among the six weather factors minimum temperature influenced the false smut disease severity up to 92%.","PeriodicalId":56127,"journal":{"name":"Journal of Agrometeorology","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Agrometeorology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.54386/jam.v26i1.2334","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Agricultural and Biological Sciences","Score":null,"Total":0}

引用次数: 0

Abstract

False smut of rice is an upcoming menace to rice production in India. In order to understand the intricate relationship between disease incidence and weather parameters, field experiments were conducted for three years (2019, 2020 and 2021) in two cropping seasons viz., late kharif (August to November) and rabi (October to January) at the Agricultural College and Research Institute (AC & RI), Madurai, Tamil Nadu. Results revealed that the disease severity had positive correlation with relative humidity (RH), wind speed (WS) and bright sunshine hours (BSS) and negative correlation with heavy rainfall (RF), evaporation (EP) and temperature. The pooled data analysis (2019 and 2020) for the late kharif and rabi cropping season revealed that disease severity was perfectly showed positive correlation with relative humidity (0.80) and wind speed (0.83) and negatively correlated with weekly maximum temperature (-0.78) and minimum temperature (-0.84). The step wise linear regression analysis was performed which revealed that among the six weather factors minimum temperature influenced the false smut disease severity up to 92%.

查看原文本刊更多论文

天气参数对印度泰米尔纳德邦水稻假穗病发展的影响

水稻假穗病是印度水稻生产即将面临的威胁。为了了解病害发生率与天气参数之间的复杂关系，在泰米尔纳德邦马杜赖的农业学院和研究所（AC & RI）进行了为期三年（2019 年、2020 年和 2021 年）的田间试验，涉及两个种植季节，即晚季（8 月至 11 月）和蕾期（10 月至 1 月）。结果显示，病害严重程度与相对湿度（RH）、风速（WS）和日照时数（BSS）呈正相关，而与暴雨（RF）、蒸发量（EP）和温度呈负相关。对收割后期和蕾期（2019 年和 2020 年）的汇总数据分析显示，病害严重程度与相对湿度（0.80）和风速（0.83）呈完美的正相关，而与每周最高温度（-0.78）和最低温度（-0.84）呈负相关。逐步线性回归分析表明，在六个天气因子中，最低气温对假烟粉虱病害严重程度的影响高达 92%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Agrometeorology 农林科学-农艺学

CiteScore

1.40

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Agrometeorology (ISSN 0972-1665) , is a quarterly publication of Association of Agrometeorologists appearing in March, June, September and December. Since its beginning in 1999 till 2016, it was a half yearly publication appearing in June and December. In addition to regular issues, Association also brings out the special issues of the journal covering selected papers presented in seminar symposia organized by the Association.