A study on fungicides potential and incidence of sheath rot of rice caused by Sarocladium oryzae[ (Sawada)
Journal Title: Journal of Applied and Natural Science - Year 2013, Vol 5, Issue 1
Abstract
Sheath rot, Sarocdadium oryzae (Sawada) Gams. and Hawksw., has recently become a serious disease of rice when climatic conditions are unfavorable during flag sheath development. In this study systemic and non-systemic fungicides were tested against S. oryzae. Maximum inhibition of radial growth (76.53%) was recorded at 10.0ppm of tebuconazole fungicides. In non-systemic fungicides, maximum inhibition of radial growth (78.86%) was recorded at 200.0ppm. Comparative efficacy of fungicides on sheath rot was tested during Kharif 2008-2009. Foliar spray of tebuconazole was found superior overall other treatments giving reduction in disease severity (59.01-64.33%), which was followed by followed by carbendazim (48.70-55.28%), and also increased grain yield per plant (45.06-65.84%), grain yield per plot (45.57-65.85%), 1000-grains weight (10.80-52.58%) and reduction in chaffiness (48.07-53.80%). Among non-systemic fungicides chorothalonil was found best in managing sheath rot, giving reduction in disease severity (35.68-38.85%), and also increased grain yield per plant (24.78-44.74%), grain yield per plot (24.52-44.57%), 1000-grains weight (4.25-35.47%) and reduction in chaffiness (15.74-45.96%) as compared to check. Another field experiment was conducted during Kharif 2009-10 to observe sheath rot incidence on rice cultivars in Tarai region. The incidence was recorded in thirty three varieties; only varieties (Type-3 and Basmati-370) were recorded as free from disease symptoms.
Authors and Affiliations
Lalan Sharma, D. Nagrale, S. Singh, K. Sharma, A. Sinha
Keywords
Related Articles
- EP ID EP109519
- DOI 10.31018/jans.v5i1.276
- Views 111
- Downloads 0
Correlation coefficient analysis in twelve gladiolus (Gladiolus hybrids Hort.) genotypes
Study was undertaken to analyses the correlation co-efficient for twenty seven characters in twelve genotypes of gladiolus (Gladiolus hybridusHort.) grown atthe Instructional Farm, Department of Floriculture & Landscapin...
Eco-friendly livestock management practices followed by tribal households of Narmada valley region of India.
A field survey was undertaken in Narmada valley region, four taluka of Narmada district of south Gujarat to collect first hand information on management practices of dairy animals followed by tribal peoples. The breeding...
Growth and yield of Vigna radiata L.) under Terminalia arjuna and Mitragyna parvifolia based agrisilvicultural system
The present investigation was carried out in an agrisilvicultural system with treatments involving silvicultural component of 20 years old Terminalia arjuna Bedd. (Arjun) and Mitragyna parvifolia Korth (Kalam) intercropp...
Zinc dynamics in an Alfisol as influenced by levels of farm yard manure
Field experiments were conducted on sandy loam soil at Shimoga, Karnataka, India to study the influence of FYM application on dynamics of zinc in an Alfisol under fingermillet (Eleusine coracana L.) crop. Three levels of...
Ability of arbuscular mycorrhiza to promote growth of maize plant and enzymatic activity of an alluv
A pot experiment was conducted to evaluate the response of selected species of mycorrhizae for root colonization and phosphorus uptake by maize in an alluvial soil. Of all the species of mycorrhizae taken under considera...