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Sheath blight of rice
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Sheath blight (SB), caused by Rhizoctonia solani, is a common rice disease worldwide. Currently, rice cultivars with robust resistance to R. solani are still lacking. To provide theoretic basis for molecular breeding of R. solani-resistant rice cultivars, the changes of transcriptome profiles in response to R. solani infection were compared between a moderate resistant cultivar (Yanhui-888, YH) and a susceptible cultivar (Jingang-30, JG).
16p
vijeeni2711
24-07-2021
5
0
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A field experiment was carried out at Rice Research Station, Chinsurah, Hooghly during kharif, 2013 and boro, 2013-14 to evaluate the compatibility of selected insecticides with fungicides against yellow stem borer (YSB) and sheath blight (ShB). The trial included nine treatments consisting of insecticides, pre-mix flubendiamide + buprofezin and triazophos and fungicide, hexaconazole and tricyclazole which were applied alone as individual treatment and in four possible combination treatment with untreated control. The experiment was laid in RBD with three replications.
8p
chauchaungayxua11
23-03-2021
10
2
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The studies conducted on mode of perpetuation of sheath blight pathogen (Thanatephorus cucumeris) of rice (Oryza sativa L.) in/on rice seeds, plant debris and through sclerotia was studied at different placement conditions viz., on soil surface, at 5 cm soil depth and in-door under roof cover after crop harvest. The rice seeds were found to harbour externally viable pathogen up to five months from the harvest.
8p
trinhthamhodang1218
26-02-2021
11
2
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The present investigations were carried out to study the variability of R. solani isolates based on some cultural and morphological characters and correlate these characters with the identification of anastomosis group(s) of the fungal pathogen prevalent in Kashmir and the results are presented herein.
8p
trinhthamhodang1218
26-02-2021
15
2
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Different levels of P2O5 and K2O were evaluated for their effects on the disease incidence, intensity and grain yield were investigated in present investigations.
5p
trinhthamhodang1218
26-02-2021
10
2
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There is a need to collect information on the off season survival of R. solani in rice ecosystem on different plant species. Considering the above reason, the present study was under taken by using different crops and weed species from rice growing ecosystem.
9p
trinhthamhodang1218
26-02-2021
3
1
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In the present study, attempt was made to find out the congenial period for sheath blight disease progression in different dates of sowing and its relation with various weather variables.
11p
cothumenhmong9
18-01-2021
6
2
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This study includes In-vivo analysis of seven new generation chemicals to test their efficacy in altering the host physiological traits in order to manage sheath blight, the devastative disease of rice caused by Rhizoctonia solani. Chemical treatment was given twice at 15 days interval.
7p
cothumenhmong9
18-01-2021
8
2
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Thirty two Rhizoctonia solani isolates were studied for molecular variability by RAPD technique at the Institute of Agri-biotechnology, University of Agricultural Sciences, Dharwad, India during 2007.
7p
gaocaolon9
22-12-2020
9
2
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The present experiment was carried out in the experimental farm of Regional Research and Technology Transfer Station (OUAT), Chiplima, Sambalpur, Odisha, during kharif 2013 and Rabi 2013-14 to determine the compatibility of selected insecticides and fungicides against major insect pests like stem borer, brown plant hopper and diseases like blast and sheath blight of rice.
7p
gaocaolon9
22-12-2020
12
2
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The study was conducted in Palamu district of Jharkhand to know the socioeconomic status of farmers. They were categorized in three groups i.e. small ,medium and large farmers which were differ from each other with regard to socio –economic factors and found that 54 per cent rice growers has medium level of knowledge .
7p
trinhthamhodang9
16-12-2020
8
1
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The present study focused on the effect of various seaweeds extracts and biocontrol agents on controlling sheath blight in rice caused by R.solani under in vitro condition. Use of biocontrol agents and sea weed extracts is an eco friendly, cost effective and sustainable alternative method in disease management.
10p
trinhthamhodang1216
19-11-2020
12
1
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A survey was conducted on Swarna cultivar (MTU 7029) of rice during Kharif 2013, 2014, 2015 and 2016 at Nadia district of West Bengal to record the fungal disease and their respective yield loss. Ten diseases (Leaf blast, Sheath blight, Sheath rot, Brown spot, Brown Leaf Spots caused by Curvularia lunata, Stackburn disease, Leaf spot caused by Nigrospora oryzae, Stem rot, Rotting by Choanephora cucurbitarum and False smut) were based on visual observation on Swarna rice cultivar and yield loss due to respective disease was calculated by measuring test weight (gm) of rice grains.
12p
caygaocaolon8
07-11-2020
11
2
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Six fungicides viz., captan 50 WP, copper oxychloride 50 WP, dodine 65 WP, mancozeb75 WP, propineb70 WP and zineb 80 WP were evaluated against rice sheath blight (Thanatephorus cucumeris). The in-vitro evaluation of these fungicides through poisoned food technique at five different concentrations viz., 50, 100, 200, 500 and 1000 µg a.i ml-1 indicated that mancozeb proved the most effective exhibiting mean mycelial growth inhibition of 95.26 per cent followed by captan and dodine with 93.80 and 93.66 per cent, respectively. Copper oxychloride proved least effective and resulted in only 44.
9p
caygaocaolon8
07-11-2020
9
2
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A new combination fungicide TAQAT 75% WP (Captan 70% + Hexaconazole 5%) was tested in different doses against rice sheath blight (ShB), sheath rot (ShR) and stem rot (StR) diseases under field conditions during Kharif 2013 and Rabi 2013-14.
10p
caygaocaolon8
07-11-2020
14
1
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Sheath blight of rice is an economically important disease affecting rice production. Nine fungicides and two bioagents in combination were tested to know their efficacy in controlling the disease in the field for kharif 2016.
4p
angicungduoc8
07-11-2020
10
1
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In a search for an efficient biodegrader for the production of high quality biomanure, the present study was undertaken to probe the potentially of a new mushroom fungus viz., Lentinus connatus Berk, isolated from the dead woods of cashew (Lakshmanan, 2002), on comparison with existing biodegrader.
6p
angicungduoc8
07-11-2020
8
1
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Rice sheath blight, caused by Rhizoctonia solani is one of the major diseases of rice. The pathogen infects rice plants directly through stomata or using lobate appressoria and hyphal masses called infection cushions. Initially the mycelium looked thread like structure, milky white in colour than mycelium converted mature Sclerotia.
9p
nguaconbaynhay8
13-10-2020
7
1
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Sheath blight of rice caused by Rhizoctonia solani is one of the major biotic constraints in India and reduce rice yield ranging from 20-50% depending on the severity of the disease and stages of infection. The disease has spread widely in terms of both occurrence and intensity over past 20 years.
8p
trinhthamhodang1215
23-09-2020
11
2
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Rice sheath blight, caused by Rhizoctonia solani, is one of the most devastating diseases for stable rice production in most rice-growing regions of the world. Currently, studies of the molecular mechanism of rice sheath blight resistance are scarce. Here, we used mutated rice population of the variety swarna induced by the sodium azide (NaN3). The variability in disease reaction was observed among mutated rice lines. Out of the total 1000 mutant plants, 47 plants were screened that show low disease index, ranged between 0 to 5 were selected for next generation.
8p
trinhthamhodang1215
23-09-2020
12
2
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