scholarly journals Effect of Selected Essential Oils and Botanicals on Alternaria Blight (Alternaria brassicae (Berk) Sacc) of Mustard (Brassica juncea (Linn) Czern and Coss

2021 ◽  
pp. 114-120
Author(s):  
Keerthana Muddappa ◽  
Sunil Zacharia
Keyword(s):  
Brassica Juncea ◽  
Alternaria Brassicae ◽  
Neem Oil ◽  
Lawsonia Inermis ◽  
Eucalyptus Oil ◽  
Alternaria Blight ◽  
Untreated Check ◽  
Biological Yield ◽  
Pongamia Oil ◽  
Return Value

Indian mustard (Brassica juncea (L.) Czern.coss) is also known as sarson, rai or raya, toria or Lahi.it is a herbaceous annual plant. Mustard is the second important oilseed crop in the world after sunflower, soybean and palm oil. Alternaria blight disease caused by Alternaria brassicae (Berk.) Sacc. It has been reported from all the continents of the world. Average yield losses occur due to various pest and diseases among which Alternaria blight is an important disease. Field experiment was conducted at the research plot of the Department of Plant Pathology, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh during the rabi season of 2020-2021 to test, Effect of selected essential oils and botanicals against Alternaria blight (Alternaria brassicae (Berk.) Sacc) of mustard (Brassica juncea (Linn.) Czern and Coss), by foliar spray of certain essential oil, plant extracts and fungicide. The treatments were Neem oil @2%, Eucalyptus oil @2%, Pongamia oil @2%, Lawsonia inermis extract @15%, Chenopodium album extract @15% Mancozeb (treated check) @ 0.2% and control (untreated check). The percent disease intensity on leaves at 45, 60 and 75 DAS, number of siliquae per plant, number of seeds per siliquae, length of siliquae (cm), test weight of seed (1000 number), biological yield (gm) and seed yield were recorded. Among the treatments, maximum number of number of siliquaes (243.13), maximum number of seeds per siliquae (12.27), length of siliquae (5.16 cm), minimum disease intensity (%) (29.01 %), maximum test weight (3.57 gm), maximum yield (9.43 qt) and biological yield (24.70 gm) were recorded in the treatment T2 Eucalyptus oil @2% followed by T1 Neem oil @2%, T4 Lawsonia inermis  extract @15%, T3 Pongamia oil @2%, T5 Chenopodium extract @15%, when compared to treated check T6 Mancozeb @ 0.2% and untreated check T0. Higher gross return value (Rs. 66295), net return value (Rs. 29295), and B: C ratio (1.7:1) was found in the treatment T2 – Eucalyptus oil @2% as compared to T5–mancozeb and T0–control.

scholarly journals Induction of MPK3, MPK6 and MPK4 Mediated Defense Signaling in Response to Alternaria Blight in Transgenic Brassica juncea

2017 ◽  
Vol 14 (4) ◽  
pp. 1469-1474
Author(s):  
Mohd Tasleem ◽  
Mamta Baunthiyal ◽  
Gohar Taj
Keyword(s):  
Arabidopsis Thaliana ◽  
Brassica Juncea ◽  
Defense Response ◽  
Fungal Pathogens ◽  
Expression Level ◽  
Alternaria Brassicae ◽  
Yield Losses ◽  
Defense Signaling ◽  
Alternaria Blight ◽  
Significant Yield

ABSTRACT: Alternaria brassicae causes a highly destructive disease in Brassica juncea (Rapeseed mustard) resulting in significant yield losses. Studies of MAPK machinery components in Arabidopsis thaliana have indicated that MPK3, MPK4, & MPK6 are involved in defense response and provide resistance against various bacterial and fungal pathogens. In this study, we analyzed the expression level of MPK3, MPK4 & MPK6 in overexpressed MPK3 transgenic (BjV5) Brassica juncea at different stages of Alternaria brassicae inoculation.Expression study revealed that MPK3/MPK6 was involved in early defense response and MPK4 in late defense response. These results suggested that BjMPK3 positively regulate SA mediated defense response, which might play an important role in resistance to Alternaria brassicae in Brassica juncea.

scholarly journals Effect of Plant Oils on the Infestation of Rhyzopertha Dominica (Fab.) in Wheat, Triticum Aestivum Linn.

2013 ◽  
Vol 53 (3) ◽  
pp. 301-304 ◽  
Author(s):  
Kailash Chand Kumawat ◽  
Bhanwar Lal Naga
Keyword(s):  
Triticum Aestivum ◽  
Castor Oil ◽  
Ricinus Communis ◽  
Seed Viability ◽  
Rhyzopertha Dominica ◽  
Plant Oils ◽  
Neem Oil ◽  
Eucalyptus Oil ◽  
Grain Damage ◽  
Untreated Check

Abstract Six oil treatments, viz., Neem (Azadirachta indica A. Juss), Castor (Ricinus communis), Karanj (Pongamia pinnata), mustard (Brassica juncea), Eucalyptus (Eucalyptus melanophloia) and Taramira (Eruca sativa) were evaluated at three dose levels (0.1, 0.5, and 1.0% v/w) against the lesser grain borer, Rhyzopertha dominica (Fab.) infesting wheat, Triticum aestivum Linn. An untreated check (the control) was maintained for comparison. The maximum protection was provided by Neem oil at 1.0 per cent (no adult emerged up to 270 days) followed by castor oil and Taramira oil at 1.0 per cent (no adult emerged up to 90 days of treatment). The maximum number of adults were recorded in the grain treated with Eucalyptus oil used at 0.1 per cent (9.3-22.0), Karanj oil at 0.1 per cent (6.0-20.7), and castor oil at 0.1 per cent (2.0-23.0). The maximum grain damage was recorded with use of Eucalyptus oil at 0.1 per cent (28.7-64.7), Karanj oil at 0.1 per cent (18.7-60.0%), and Eucalyptus at 0.5 per cent (18.0-58.0%). No grain damage was recorded in 1.0 per cent Neem oil-treated grain, for up to 270 days. For up to 90 days of treatment, no grain damage was recorded in 1.0 per cent castor oil treated grain, and no grain damage was recorded in 1.0 per cent Tarmira oil treated grain for up to 90 days of treatment. No adverse effect of plant oils was observed on seed viability for up to 270 days of treatments

scholarly journals In vitro and in vivo effect of eco-friendly chemicals on alternaria blight disease (Alternaria brassicae) and yield attributes in Indian mustard (Brassica juncea)

2015 ◽  
Vol 7 (1) ◽  
pp. 43-51
Author(s):  
Amarendra Kumar ◽  
Santosh Kumar ◽  
Rakesh Kumar ◽  
Gireesh Chand ◽  
S. J. Kolte
Keyword(s):  
Brassica Juncea ◽  
Indian Mustard ◽  
Disease Index ◽  
Maximum Effect ◽  
Alternaria Brassicae ◽  
Yield Attributes ◽  
Alternaria Blight ◽  
Blight Disease

The present investigation was done to evaluate the effect of different concentrations of five eco-friendly chemicals in vitro and in vivo, on the management of alternaria blight and yield attributes in Indian mustard (Brassica juncea cv. Varuna). Out of five eco-friendly chemicals, K2SO4 1000 ppm (64.28%) followed by ZnSO4 1000 ppm (63.88%) showed maximum inhibition of mycelial growth in comparison to check. 0.5% concentration of KCl (57.06%) followed by CaSO4 (59.50%) and K2SO4 (62.20%) showed significantly maximum effect on spore germination in comparison to check (74.60%). Spore intensity significantly increased by all the treatments except CaSO4 at 0.5% (40.18%) followed by K2SO4 at 0.5% (29.86%) and ZnSO4 0.75% (5.11% reduction) in comparison to check. The significantly minimum disease index on leaf over check was found by foliar spray of CaSO4 at 0.5%(23.58%) followed by CaSO4 at 1.5% (24.00%) and Na2B4O7.10H2O at 1.5% (24.08%). Na2B4O7.10H2O at 0.75% showed significantly lowest disease index (23.91%) on pod followed by K2SO4 at 1.5% (25.75%) and KCl at 1.5% (26.00%) in comparison to check. CaSO4 at 1.0% showed maximum number of primary branches (7.00), number of secondary branches (13.00) and total yield/ha (1917.30 kg/ha) in comparison to check. The results obtained from the present study suggested that K2SO4 showed maximum in vitro effect on Alternaria brassicae and CaSO4 and Na2B4O7.10H2O are providing maximum reduction of disease and increase in seed yield/ha that leads to efficient alternaria blight disease management strategies in field condition. These eco-friendly chemicals can protect the crops from alternaria blight diseases and increase the production and productivity of the Indian mustard crop.

Expression analysis of MAP K 4 and MAP K 6 during pathogenesis of Alternaria blight in susceptible and tolerant genotypes of Brassica juncea

2015 ◽  
Vol 142 (3) ◽  
pp. 633-643 ◽  
Author(s):  
A. Mishra ◽  
D. Pandey ◽  
H. Punetha ◽  
R. Prabhusankar ◽  
A. K. Gupta ◽  
...  
Keyword(s):  
Brassica Juncea ◽  
Expression Analysis ◽  
Alternaria Blight

Pongamia oil soap for the management of chilli mite, Polyphagotarsonemus latus Banks and its impact on spider population

ENTOMON ◽  
2021 ◽  
Vol 46 (1) ◽  
pp. 69-72
Author(s):  
K. V. Veena Krishnan ◽  
K. M. Sreekumar
Keyword(s):  
Field Experiment ◽  
Neem Oil ◽  
Polyphagotarsonemus Latus ◽  
Pongamia Oil

Field experiment was conducted to check the efficacy of the pongamia oil soap along with Spiromesifen and Neem oil soap at different concentrations in controlling chilli mite, Polyphagotarsonemus latus and its impact on spider population. Spiromesifen was found effective against chilli mite and showed persistent action in the field, whereas pongamia oil soap reported an immediate control over the pest but its effectiveness declined with time and concentration. Among the botanicals, 3% pongamia oil soap was found effective and was followed by the 2% pongamia oil soap. Pongamia oil soap proved effective against mite up to seven days after the treatment and the effect declined by 14 days after the spray. The botanicals as well as the chemical spiromesifen were found safe to spiders in the field.

Association among genetic parameters in Indian mustard (Brassica juncea L. Czern and Coss.)

2018 ◽  
Vol 3 (01) ◽  
pp. 11-15
Author(s):  
Vipin Kumar Malik ◽  
Shiv Kumar Singh ◽  
Vijay Kumar ◽  
Norang Pal Singh ◽  
Ankit Malik ◽  
...  
Keyword(s):  
Brassica Juncea ◽  
Seed Yield ◽  
Seed Weight ◽  
Harvest Index ◽  
Indian Mustard ◽  
Flowering Plant ◽  
Genetic Advance ◽  
Gene Effects ◽  
Plant Seed ◽  
Biological Yield

The considerable amount of genetic variability on the basis of GCV and PCV estimates for the traits; days to 50% flowering, numbers of primary and secondary branches per plant, length of siliqua, 1000-seed weight, seed yield per plant, biological yield per plant and harvest index were found in thirty five genotypes of Indian mustard (Brassica juncea L. Czern and Coss). Heritability and genetic advance were higher for days to 50% flowering, plant height and biological yield per plant. Although, number of secondary branches per plant, seed yield per plant and harvest index had moderately high heritability with moderate genetic advance indicating additive gene effects and selection pressure could be applied on them for yield improvement leads to fast genetic improvement of the materials. Days to 75% maturity, length of siliqua, 1000-seed weight and oil content had low heritability indicating that these traits were under the influence of environmental factors and selection on the basis of these traits could not be effective.

Sign in / Sign up

Export Citation Format

Share Document