Diseased weeds and weed pathogens of paddy fields in Devarapalli Mandal, West Godavari District, Andhra Pradesh, India
Journal Title: Journal of Research in Weed Science - Year 2020, Vol 3, Issue 1
Abstract
Weeds are responsible for heavy yield losses in rice, to the extent of complete crop failure under severe infestation conditions. They occur in every field of rice (Oryza sativa) in the world which is the vital food for more than two billion people in Asia. A systematic field study was conducted in paddy field of Devarapalli Mandal, West Godavari District, Andhra Pradesh, India. Infested weeds were collected in paddy field crops for plants identification, observation, and collection. The random quadrant method was adopted for this study. The collected diseased weed plants were carried out for the extensive study on symptoms, isolation and pathogenicity of the organisms that involved in leaf spot diseases. The causal agents of diseased weed plants were isolated. The inoculated fungal pathogens are incubated on PDA for pure cultures. After harvesting of spores they were observed under the microscope. The study is used to know host specificity of isolated fungal pathogens on test plants and also used to identify bio control agents for crop development. Investigator hopes that diseased weeds of rice fields in study area provide good source of information of technical and taxonomic data to the academic institutes and research organizations like Agricultural colleges, Universities, Agricultural Universities and other agricultural agencies
Authors and Affiliations
Dondapudi Spandana, P. K. Ratna Kumar, P. Indhu Keerthana
Keywords
Related Articles
- EP ID EP615306
- DOI 10.26655/JRWEEDSCI.2020.1.4
- Views 121
- Downloads 0
Effects of integrated weed management on tuber yield of cassava (Manihot esculenta Crantz)
Field experiments were conducted in 2012 and 2013 at the Teaching and Research Farm of the University of Calabar, Cross River State, Nigeria to determine the effectiveness of integration of Fitsextra® (a solution contain...
Bio-economic assessment of non-chemical weed management strategies in minor crops: A review on Weed research issues, challenges, and opportunities in Pakistan
Availability of herbicides inflicts to adopt an integrated use of weed control methods (other than chemical methods) in minor crops. In Pakistan more than 70% farmers have land less than 5 ha, so it is improvident to emp...
Evaluation of different treatments on break seed dormancy of Dodder (Cuscuta campestris Yunck)
A pot experiment was conducted under field conditions in Al-Qizuina district-province of Najaf during the 2017 growing season in order to pre-planting control of field dodder )Cuscuta campestris( by breaking its seed dor...
Diseased weeds and weed pathogens of paddy fields in Devarapalli Mandal, West Godavari District, Andhra Pradesh, India
Weeds are responsible for heavy yield losses in rice, to the extent of complete crop failure under severe infestation conditions. They occur in every field of rice (Oryza sativa) in the world which is the vital food for...
Studying magnetic field and Bentazon on Kautsky curve of bean (Phaseolusvulgaris L.)
Bentazon herbicide is a post-emergent herbicide and a photosynthesis inhibitor in broadleaf weed. However, different parameters of Bean Kautsky curve changed significantly. Seeds were treated magnetically at three levels...