{"title":"Effect of date of sowing and weather factors on infestation of Atherigona soccata (Rondani) and yield parameters of forage sorghum","authors":"Subhatma Bhuyan, Ravinder Kumar","doi":"10.59515/rma.2023.v44.i2.11","DOIUrl":null,"url":null,"abstract":"Ecofriendly strategies for the management of sorghum shoot fly, helps in addressing the Atherigona soccataissues related to insecticides load on forage crop. The present study was carried out to know the suitable date of sowing on damage indices of sorghum shoot fly and green fodder yield in sorghum. The staggered sowing technique at a different time intervals was used, starting from 2 fortnight of March (12 SMW) to 1 fortnight of ndthstJuly (27 SMW). Oviposition in terms of eggs per 10 plants and dead heart percentage was recorded to be low thin 18 SMW (1 fortnight of May) sown crop (eggs: 6.66 and dead heart: 25.46%), but it was found to be highest thstin 1 fortnight of July (27 SMW) sown crop (eggs: 21.95 and dead heart: 65.45%). The correlation of shoot fly stthinfestation in relation to weather parameters revealed that egg load and dead hearts were negatively correlated with maximum temperature and positively correlated with minimum temperature, relative humidity and rain fall. Green fodder yield was recorded to be highest and lowest for the crop sown on 18 SMW (409 q/ha) and 27 ththSMW (302 q/ha), respectively. The study indicated that 1 fortnight of May was the best time to escape from the stsorghum shoot fly attack.","PeriodicalId":49636,"journal":{"name":"Range Management and Agroforestry","volume":"7 1","pages":""},"PeriodicalIF":0.8000,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Range Management and Agroforestry","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.59515/rma.2023.v44.i2.11","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"AGRONOMY","Score":null,"Total":0}
引用次数: 0
Abstract
Ecofriendly strategies for the management of sorghum shoot fly, helps in addressing the Atherigona soccataissues related to insecticides load on forage crop. The present study was carried out to know the suitable date of sowing on damage indices of sorghum shoot fly and green fodder yield in sorghum. The staggered sowing technique at a different time intervals was used, starting from 2 fortnight of March (12 SMW) to 1 fortnight of ndthstJuly (27 SMW). Oviposition in terms of eggs per 10 plants and dead heart percentage was recorded to be low thin 18 SMW (1 fortnight of May) sown crop (eggs: 6.66 and dead heart: 25.46%), but it was found to be highest thstin 1 fortnight of July (27 SMW) sown crop (eggs: 21.95 and dead heart: 65.45%). The correlation of shoot fly stthinfestation in relation to weather parameters revealed that egg load and dead hearts were negatively correlated with maximum temperature and positively correlated with minimum temperature, relative humidity and rain fall. Green fodder yield was recorded to be highest and lowest for the crop sown on 18 SMW (409 q/ha) and 27 ththSMW (302 q/ha), respectively. The study indicated that 1 fortnight of May was the best time to escape from the stsorghum shoot fly attack.
期刊介绍:
The Society has been established with the following objectives:
1. To advance the cause of research activity in all aspects of rangelands and to encourage and promote the studies on rangeland, wasteland ecosystems and agroforestry.
2. To provide facilities for seminars and conferences to rangeland researchers, development workers and farmers and to encourage close cooperation with organizations having related aims and interests.
3. To disseminate the knowledge of scientific agriculture and technology for forage and rangeland production, improvement and management.