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In vitro evaluation of botanicals
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An experiment was conducted during Kharif season of 2017-2018 at the Central Research Farm of Sam Higginbottom University of Agriculture Technology and Sciences, to evaluate the efficacy of bio-agents and botanical extracts against anthracnose (Colletotrichum lindemuthianum) of black gram (Vigna mungo L.) both in vitro and in vivo. In vitro studies showed significant difference in the inhibition per cent of mycelial growth of the pathogen among all the treatments.
8p
chauchaungayxua12
29-07-2021
15
1
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Fusarium wilt has become a serious problem in recent years in all chilli growing irrigated tracts of India. Wilt of chilli (Capsicum annuum) caused by Fusarium oxysporum f.sp. capsici. In present investigation bio-agents, botanicals and fungicide were evaluated in-vitro and in vivo condition against Fusarium oxysporum.
11p
chauchaungayxua12
29-07-2021
7
1
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The present study to explore the feasibility of using extract of several plants for the management of Fusarium oxysporum causing wilt disease of chickpea under in vitro conditions.
9p
trinhthamhodang11
27-04-2021
24
1
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Tomato (Solanum lycopersicum Mill.) is one of the most remunerative and widely grown vegetables in the world. The area under tomato cultivation in Manipur accounts for about 0.15 million hectares with an average production of 2.10 million tonnes and productivity of 12.02 tonnes ha-1 during 2016-17.
9p
chauchaungayxua10
19-03-2021
12
2
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Anthracnose causes the healthy green fruits and red ripe fruits lose 31% and 46% ascorbic acid after 14 days of pathogenesis (Ramesh, 2007) and 25% loss of capsaicin content (Prasad et al., 2000). The above reasons prompted the present study to test the efficacy of botanicals in vitro.
9p
chauchaungayxua10
18-03-2021
11
2
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The present investigation was taken to screen local botanicals to select most effective aqueous plant extracts and bio control agents against A. solaniin vitro condition which can be later used in the field and for further research.
10p
cothumenhmong9
18-01-2021
9
2
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The toxicants (fungicide and botanicals) showing maximum efficacy against the pathogen and minimum efficacy against milky mushroom (Calocybe indica) mycelia as per results of in vitro studies were further evaluated against T. harzianum under in vivo condition in mushroom house. Among fungicides only Bavistin (@150 ppm) and out of three botanicals only Nimbicidin (@4 per cent) were selected for management of the green mould disease in milky mushroom cultivation in bags.
6p
cothumenhmong9
18-01-2021
14
1
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There is a need and scope for exploiting sources of alternative chemotherapeutants which are reserved in many plant species Based on the importance of Alternaria leaf spot, the present investigation was carried out with a view to find out the efficacy of bacterial biocontrol agents and botanicals against A. macrospora.
9p
cothumenhmong9
18-01-2021
11
2
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The crop is vulnerable to attack at all growth stages depending upon the conditions favourable for initiation and development of the disease.
11p
gaocaolon9
22-12-2020
11
1
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An experiment was conducted to evaluate the effect of three botanical extracts, two botanical fungicides and one essential oil in vitro and in vivo against Alternaria brassicae causing Alternaria blight of cabbage.
7p
trinhthamhodang1216
19-11-2020
17
2
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Therefore, keeping in view the importance of the crop and seriousness of the disease the present investigation was under taken with Evaluation of botanicals against pathogen in in vitro condition and evaluation of botanicals/bioagents against disease under sick field conditions.
7p
chauchaungayxua8
03-10-2020
8
2
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Therefore the chemical control may not be amuch more effective pattern for the management of that disease then, theuse of some botanicals extracts, these are partially inhibit the germination of Sclerotia, hence the botanicals may be evaluated and standardized in search of a component management strategy.
9p
trinhthamhodang1215
23-09-2020
12
1
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In India, disease incidence has been reported to vary between 24.59 to 51.72 % Sharma and Sugha (1995). As a disease of minor important but during the last few year bean anthracnose has appeared as a potential threat to the (Sacc and Magnus) Briosi and Cavara is a major limiting factor in reduction of yield in subtropical and temperate regions. Anthracnose is mainly a seed-borne disease caused by a fungus which has a wide host range on many legume species (Goswami et al., 2011).
8p
trinhthamhodang1215
23-09-2020
8
2
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A study on management of Alternaria leaf blight of tomato was carried out in year 2015-2016. Under in vitro evaluation of the botanicals drake (Melia azedarach) has highest efficacy of 63.52 per cent inhibition of the average mycelial growth of the Alternaria solani. However the least effective botanical was Urtica dioica with 36.30 per cent of mycelial inhibition.
8p
cothumenhmong7
09-09-2020
7
2
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Fruit rot of brinjal caused by Alternaria alternata is an important disease of eggplant inflicting heavy losses. The present investigation was carried out to test the efficacy of fungicides, botanicals and bio-agents in vitro. Among fungicides tested, tebuconazole, difenconazole showed 100 per cent mycelial inhibition of Alternaria alternata.
10p
trinhthamhodang7
31-08-2020
9
2
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The bacterial leaf blight of rice caused by Xanthomonas oryazae pv. oryzae is the disease of great economics importance in India especially in Bihar. Management of BLB disease can play a vital role in management of rice disease. In the present investigation evolution of different plant extract (botanical) and new chemical on growth of bacteria by poison food technique and sowing by best botanical and new chemical were conducted and antagonistic activity were tested.
7p
trinhthamhodang7
31-08-2020
7
1
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Soybean [Glycine max (L.) Merrill.] is an important oilseed crop. Colletotrichum truncatum, the incitant of anthracnose/ pod blight in soybean is one of the most destructive pathogens. Eight fungicides (@ 500, 1000, 1500, 2000 and 2500ppm each), 10 botanicals@ 10% and four bioagents were evaluated in vitro against C. truncatum, using PDA as basal medium. The results revealed that all the fungicides, botanicals and bioagents tested were found fungistatic and significantly inhibited the mycelial growth of the test pathogen over untreated control.
6p
nguaconbaynhay7
15-08-2020
18
1
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Tomato (Solanum lycopersicum L.) is one of the commercially important major vegetable crops grown throughout the tropics and subtropics. Septoria leaf spot caused by Septoria lycopersici Speg. is one of the most destructive diseases of tomato and is particularly severe in areas where wet, humid weather persists for extended periods.
9p
angicungduoc6
22-07-2020
16
1
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In vitro studies, aqueous extract of leaves of plants namely Karu (Roylea elegans), Artemisia (Artemisia roxburghiana), Neem (Azadirachta indica), Bana (Vitex negundo), Tulsi (Ocimum sanctum) and seed of Darek (Melia azedarach) were found effective in inhibiting the growth of the B. dothidea causing white rot in apple. These botanicals were mixed together and formulations were made in water (Botanical Formulations 1) and Cow urine (Botanical Formulations 2) on weight and volume basis.
13p
angicungduoc6
20-07-2020
17
2
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To manage the disease an investigation at the Department of Plant Pathology, SHIATS-DU, Allahabad was carried out to evaluate the effect of bio-agents viz. Trichoderma viride @ 2%, Pseudomonas fluorescens @ 2%, T. harzianum @ 2%, botanical viz. neem leaf extract @ 5%, neem oil @ 5% and fungicide viz. carbendazim @ 0.2% against R. solani under invitro condition by dual culture and poisoned food technique. All the bioagents and botanical were evaluated singly. All the treatments significantly inhibited the mycelial growth of R. solani as compared to untreated check.
5p
chauchaungayxua6
26-06-2020
11
2
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