A comparative evaluation of bioagents and chemicals for the control of stalk rot of Sorghum caused by Dickeya dadantii
Journal Title: Journal of Applied and Natural Science - Year 2018, Vol 10, Issue 3
Abstract
Stalk rot sorghum caused by Dickeya dadantii (syn. Erwinia chrysanthemi) is a devastating sorghum disease and is highly detrimental to sorghum cultivation in tarai region of India. The bacterium disrupts and disintegrates vascular bundles of sorghum stem manifesting slimy soft rot symptom. In vitro studies on bioagents and chemicals revealed that among bioagents assessed Pseudomonas fluorescens strain Psf-173 and Trichoderma harzianum strain Th-14 surpassed the other biological control agents whereas among chemicals, oxytetracycline and tetracycline were outstanding than other chemicals and their combination products used for the control of stalk rot of Sorghum caused by D. dadantii. Field trial with pre-plant soil application had maximum reduction in disease severity in treatment with antibiotic oxytetracycline (28.18%) whereas trial with pre-plant soil application with one (34.49%) and two foliar spray (37.03%) showed maximum reduction in disease severity in treatment with P. fluorescens strain Psf-173. All the three field trials involving pre-plant soil application, pre-plant soil application and one foliar spray and trial with pre-plant soil application and two foliar spray revealed that biological control agent P. fluorescens strain Psf-173 alleviates symptom of stalk rot of sorghum and stimulates seed germination and plant growth.
Authors and Affiliations
Prachi Singh, Yogendra Singh, Jyotika Purohit, Anupam Maharshi
Keywords
Related Articles
- EP ID EP378580
- DOI 10.31018/jans.v10i3.1862
- Views 64
- Downloads 0
Present and past status of fish fauna of river Basantar, an important tributary of the river Ravi, in Samba district, Jammu (J&K)
Icthyofaunal study of river Basantar, an important tributary of river Ravi in Samba district, Jammu (J&K) has revealed the existence of 35 fish species belonging to 5 orders, 10 families and 25 genera. There is dominance...
Prevalence of Vitamin A deficiency among school going children of Jasra block of Allahabad, India
The present study was conducted to find out the prevalence of vitamin A deficiency(VAD) among school going children of district Allahabad in year 2015 to assess the nutritional status of selected school going children (a...
Assessment on performance and variability in different sweet orange (Citrus sinensis Obseck) cultivars under Punjab conditions
Based on morphological characterization, the performance of eighteen sweet orange, (Citrus sinensis Obseck) cultivars were evaluated. On the basis of two year data, the maximum mean fruit weight (316.25 gm) was recorded...
Effects of wildfires on flora, fauna and physico-chemical properties of soil-An overview.
Fire is one of the most destructive threats faced by our forests. Fire is good servant but a bad master. The fire season starts in March/April continues up to June. Wildfires destroy not only flora (tree, herbs, grasslan...
Mass exchange evaluation during optimization of osmotic dehydration for Oyster mushrooms (Pleurotus sajor-caju) in salt-sugar solution
The objective of this study was to investigate the osmotic dehydration of Oyster mushrooms in salt-sugar solution at different solution concentrations, immersion times, temperatures and solution to fruit ratio to analyze...