scholarly journals Relative efficacy of certain insecticides against mustard aphid in mustard ecosystem

2020 ◽  
Vol 1 (1) ◽  
pp. 46-48
Author(s):  
Shweta Patel ◽  
◽  
C.P. Singh ◽  
Wajid Hasan ◽  
◽  
...  
Keyword(s):  
Brassica Juncea ◽  
Seed Yield ◽  
Foliar Spray ◽  
Research Center ◽  
Lipaphis Erysimi ◽  
Relative Efficacy ◽  
Rabi Season ◽  
Mustard Aphid ◽  
Crop Research

Studies on the efficacy of eight insecticides against mustard aphid, Lipaphis erysimi (Kalt.) on Brassica juncea cv. Varuna as foliar spray were carried out at Norman E. Borlaug Crop Research Center of G.B. Pant University of Agriculture and Technology, Pantnagar (India) during Rabi season of 2018-19. Studies revealed that after third and seventh days of spray, Dimethoate 30 EC, Thiamethoxam 25 WG and Imidacloprid 17.8 SL proved most effective against mustard aphid. The maximum seed yield of 21.69 q/ha was recorded in thiamethoxam, which remained on par with imidacloprid (21.43 q/ha) and dimethoate (20.69 q/ha). The lowest seed yield was obtained from untreated plots (10.44 q/ha).

Efficacy of novel insecticides against mustard aphid Lipaphis erysimi (Kaltenbach)

2018 ◽  
Vol 3 (01) ◽  
pp. 62-70
Author(s):  
Nand Kishor Maurya ◽  
Rajendra Singh ◽  
Joginder Singh ◽  
Rashmi Nigam ◽  
Wajid Hasan ◽  
...  
Keyword(s):  
Block Design ◽  
Cost Benefit ◽  
Lipaphis Erysimi ◽  
Research Centre ◽  
Time Intervals ◽  
Mustard Aphid ◽  
Randomized Block Design ◽  
Cost Benefit Ratio ◽  
Crop Research ◽  
Better Than

An examination was carried out to study in randomized block design with three replications at Crop Research Centre, Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut during rabi 2014-15, the evaluation of novel insecticides viz., imidadoprid, acephate, chlorpyriphos, fipronil, thiamethoxam, dimethoate, and pymetrozine, against L. erysimi revealed that all the treatments schedule proved better than control at all the time intervals after each spray. The thiamethoxam 25% WG @100 g/ha was found most effective treatment in reducing the aphids population followed by acephate 75 SP @ 500g/ha. The pymetrozine 50 WG @ 250 g/ha was recorded less effective. Among conventional insecticides imidadoprid 17.8 SL @ 150 ml/ha was found more effective than dimethoate 30% EC @ 1000 ml/ha and fipronil 5 SC @ 1000 ml/ha. The higher yield was obtained from thiamethoxam 25% WG @100 g/ha with (17.15 q/ha) whereas, highest cost benefit ratio is obtained from imidadoprid 17.8 SL @ 150 ml/ha with (1:9.54).

Seed and yield parameters as influenced by season and plant growth regulators in dolichos bean [Lablab purpureus L. (Sweet)]

2019 ◽  
Author(s):  
S. Sajjan Ashok ◽  
Pramoda . ◽  
T.A. Malabasari ◽  
T.R. Shashidhar
Keyword(s):  
Plant Growth ◽  
Plant Growth Regulators ◽  
Seed Yield ◽  
Growth Regulators ◽  
Field Experiments ◽  
Foliar Spray ◽  
Rabi Season ◽  
Pod Yield ◽  
Pod Length ◽  
Number Of Seeds

Field experiments were conducted in the Department of Seed Science and Technology, University of Agricultural Sciences, Dharwad, Karnataka during 2016-17. The field experiment consisted of 18 treatment combinations involving two seasons viz., kharif 2016 and rabi 2016-17 and plant growth regulators viz., G1: Control, G2 : GA3 @ 50 ppm, G3 : NAA @ 40 ppm, G4 : Cycocel @ 100 ppm, G5 : Mepiquat chloride @ 50 ppm, G6 : Nitrobenzene @ 200 ppm, G7: TIBA @ 50 ppm, G8 : Brassinosteroids @ 200 ppm, G9 : GA3 @ 5 ppm + IAA @ 5 ppm and experiment was laid out in Factorial RBD with three replications. The more number of pods per plant (117.19), number of seeds per pod (4.25), dry pod yield per plant (118.53 g), dry pod yield per plot (2.07 kg), seed yield per plant (114.48 g), pod length (5.66 cm), seed yield per plot (2.32 kg), seed yield per hectare (1,281 kg) was recorded in rabi season than kharif. Among the plant growth regulators more number of pods per plant (120.44), number of seeds per pod (4.44), dry pod yield per plant (120.17 g), dry pod yield per plot (2.21 kg), seed yield per plant (117.60 g), seed yield per plot (2.55 kg), seed yield per hectare (1,360 kg) and pod length (6.04 cm) was recorded in NAA @ 40 ppm, followed by nitrobenzene @ 200 ppm, (119.78, 4.35, 119.54, 2.11, 116.76, 2.42, 1,299 kg and 5.93 cm, respectively). The interaction effect was found to be non-significant for majority of the characters studied. However, foliar spray of NAA @ 40 ppm during rabi season recorded higher crop growth, seed yield and quality parameters as compared to control.

scholarly journals Effect of nitrogen and foliar spray of potassium nitrate and calcium nitrate on growth and productivity of yellow sarson (Brassica campestris L. var yellow sarson) crop under irrigated condition

2017 ◽  
Vol 9 (2) ◽  
pp. 888-892
Author(s):  
Amrit Raj ◽  
R. B. Mallick
Keyword(s):  
Seed Yield ◽  
Alluvial Soil ◽  
Calcium Nitrate ◽  
Foliar Spray ◽  
Potassium Nitrate ◽  
Dry Matter Accumulation ◽  
Rabi Season ◽  
Flowering Stage ◽  
Area Index ◽  
Crop Growth Rate

A field experiment was conducted during rabi season of 2007-’08 and 2008-’09 to study the effect of calcium nitrate {Ca (NO3)2} and potassium nitrate {KNO3} at 50 % flowering stage and soil applied nitrogen {N: (0, 40 and 80kg N/ha)} on growth, productivity and economics ofyellow sarson at farmers field under irrigated old alluvial soil of West Bengal. Highest leaf area index (LAI) values at 40 days of crop age (1.748 and 1.592), dry matter accumulation (1404.3 and 1288.8 gm-2) at 80 days and crop growth rate (C.G.R) (27.87 and 25.68 g m-2 day-1) in between 40 to 60 days were obtained at Nitrogen application at the rate of 80 kg / ha and mixed spray of 0.203 % Ca (NO3)2 + 0.25 % KNO3 respectively. Soil application of 80 kg N/ ha along with foliar spray of 0.203 % Ca (NO3)2 + 0.25 % KNO3 resulted increase in seed yield (1.68 t ha-1) by 12 % over 80 kg N/ ha with only water spray (1.5 t ha-1). Foliar spray of 0.203 % Ca (NO3)2 + 0.25 % KNO3 improved the yield components and seed yield over their sole application. Application of 80 kg N/ha along with 0.203 % Ca (NO3)2 + 0.25 % KNO3 at 50 % flowering stage was found to be the most effective in increasing yellow sarson production in old alluvial soil.

Transgenic Indian mustard (Brassica juncea) with resistance to the mustard aphid (Lipaphis erysimi Kalt.)

2002 ◽  
Vol 20 (10) ◽  
pp. 976-981 ◽  
Author(s):  
S. Kanrar ◽  
J. Venkateswari ◽  
P. Kirti ◽  
V. Chopra
Keyword(s):  
Brassica Juncea ◽  
Indian Mustard ◽  
Lipaphis Erysimi ◽  
Mustard Aphid
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