Pub Date : 2024-01-16DOI: 10.20961/carakatani.v39i1.79208
M. M. Hossain
Wheat (Triticum aestivum L.), a vital cereal, faces significant challenges from common root rot and spot blotch diseases caused by Bipolaris sorokiniana. This study aimed to explore the potential of plant growth promoting rhizobacteria (PGPR) to enhance wheat growth, reduce fertilizer input, and combat Bipolaris diseases. Two PGPR isolates, selected for their superior antagonistic properties, were identified as Stenotrophomonas koreensis RB11 and Bacillus amyloliquefaciens RB12. These PGPR strains displayed multiple plant growth promoting and biocontrol attributes, including phosphate solubilization, indole-3-acetic acid production, nitrogen fixation and antagonism against B. sorokiniana and other fungi. Wheat seed priming with the PGPR significantly improved germination, plant growth, nutrient content and biomass carbon accumulation in the rhizosphere soil. Importantly, the application of RB11 and RB12 allowed for a 25% and 50% reduction in nitrogen fertilizer usage, respectively, without compromising the yield. RB11 and RB12 also demonstrated potent inhibitory effects on B. sorokiniana conidial germination and significantly controlled common root rot and spot blotch in wheat, similar to those observed with the fungicide Protaf 250EC. Overall, this study underscores the multifaceted roles of S. koreensis RB11 and B. amyloliquefaciens RB12 in promoting wheat growth, reducing fertilizer inputs and effectively suppressing wheat pathogens. These findings contribute to the development of PGPR-based strategies for sustainable crop production and disease control.
{"title":"Utilization of Stenotrophomonas koreensis and Bacillus amyloliquefaciens for Improving Growth, Reducing Nitrogen Fertilization and Controlling Bipolaris sorokiniana in Wheat","authors":"M. M. Hossain","doi":"10.20961/carakatani.v39i1.79208","DOIUrl":"https://doi.org/10.20961/carakatani.v39i1.79208","url":null,"abstract":"Wheat (Triticum aestivum L.), a vital cereal, faces significant challenges from common root rot and spot blotch diseases caused by Bipolaris sorokiniana. This study aimed to explore the potential of plant growth promoting rhizobacteria (PGPR) to enhance wheat growth, reduce fertilizer input, and combat Bipolaris diseases. Two PGPR isolates, selected for their superior antagonistic properties, were identified as Stenotrophomonas koreensis RB11 and Bacillus amyloliquefaciens RB12. These PGPR strains displayed multiple plant growth promoting and biocontrol attributes, including phosphate solubilization, indole-3-acetic acid production, nitrogen fixation and antagonism against B. sorokiniana and other fungi. Wheat seed priming with the PGPR significantly improved germination, plant growth, nutrient content and biomass carbon accumulation in the rhizosphere soil. Importantly, the application of RB11 and RB12 allowed for a 25% and 50% reduction in nitrogen fertilizer usage, respectively, without compromising the yield. RB11 and RB12 also demonstrated potent inhibitory effects on B. sorokiniana conidial germination and significantly controlled common root rot and spot blotch in wheat, similar to those observed with the fungicide Protaf 250EC. Overall, this study underscores the multifaceted roles of S. koreensis RB11 and B. amyloliquefaciens RB12 in promoting wheat growth, reducing fertilizer inputs and effectively suppressing wheat pathogens. These findings contribute to the development of PGPR-based strategies for sustainable crop production and disease control.","PeriodicalId":513248,"journal":{"name":"Caraka Tani: Journal of Sustainable Agriculture","volume":"30 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140506492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-01-04DOI: 10.20961/carakatani.v39i1.76129
Mebaaibok L Nonglait, Nicholas Khundrakpam, Pratibha Deka
This study assesses the dependence of farmers on semi-settled (a combination of shifting and settled cultivation) and settled agriculture as a source of family income. The farmers residing in the hilly tracts of West Garo Hills mostly adopt semi-settled cultivation. Farmers are also transitioning from semi-settled to settled agriculture. This study was conducted to investigate the factors influencing the transition and the socioeconomic conditions of farmers practicing semi-settled and settled agriculture. The researchers surveyed 119 randomly selected households in West Garo Hills, a district of Meghalaya, India, using a structured questionnaire. Exploration of influencing factors for transitioning is important to provide insights into how factors interact, thereby facilitating the development of effective adaptation strategies and policies that will ensure farmers’ future well-being. Results showed that settled farmers generate more income and possess more land area than semi-settled farmers. Besides available land area, a stable source of income for a family is a strong determinant for abandoning shifting cultivation and transitioning to settled agriculture to boost income with less time investment and labor. The farmers found that shifting cultivation helped meet their dietary needs and some income during the COVID-19 lockdown. Alongside efforts to boost commercial agriculture, the government should also assist farmers with limited resources in transitioning to settled agriculture by building market networks for the goods produced from shifting cultivation.
{"title":"Farmers’ Income and the Driving Forces for the Switch from Shifting Cultivation to Settled Agriculture in Meghalaya, India","authors":"Mebaaibok L Nonglait, Nicholas Khundrakpam, Pratibha Deka","doi":"10.20961/carakatani.v39i1.76129","DOIUrl":"https://doi.org/10.20961/carakatani.v39i1.76129","url":null,"abstract":"This study assesses the dependence of farmers on semi-settled (a combination of shifting and settled cultivation) and settled agriculture as a source of family income. The farmers residing in the hilly tracts of West Garo Hills mostly adopt semi-settled cultivation. Farmers are also transitioning from semi-settled to settled agriculture. This study was conducted to investigate the factors influencing the transition and the socioeconomic conditions of farmers practicing semi-settled and settled agriculture. The researchers surveyed 119 randomly selected households in West Garo Hills, a district of Meghalaya, India, using a structured questionnaire. Exploration of influencing factors for transitioning is important to provide insights into how factors interact, thereby facilitating the development of effective adaptation strategies and policies that will ensure farmers’ future well-being. Results showed that settled farmers generate more income and possess more land area than semi-settled farmers. Besides available land area, a stable source of income for a family is a strong determinant for abandoning shifting cultivation and transitioning to settled agriculture to boost income with less time investment and labor. The farmers found that shifting cultivation helped meet their dietary needs and some income during the COVID-19 lockdown. Alongside efforts to boost commercial agriculture, the government should also assist farmers with limited resources in transitioning to settled agriculture by building market networks for the goods produced from shifting cultivation.","PeriodicalId":513248,"journal":{"name":"Caraka Tani: Journal of Sustainable Agriculture","volume":"120 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140514132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：