scholarly journals Evaluation of insecticidal seed treatments against white grub Holotrichia consanguinea Blachard infesting groundnut

2021 ◽  
Vol 10 (3) ◽  
pp. 206-210
Author(s):  
Bhut JB ◽  
◽  
Jethva DM ◽  
Naggana R ◽  
◽  
...  
Keyword(s):  
Adverse Effect ◽  
Seed Germination ◽  
Field Experiment ◽  
Seed Treatment ◽  
Yield Loss ◽  
White Grub ◽  
Seed Treatments

Field experiment on evaluation of insecticidal seed treatments against white grub Holotrichia consanguinea Blachard infesting groundnut was conducted during kharif 2018 and 2019 at farmers field. The nine insecticides evaluated as seed treatment against white grub infesting groundnut, the lowest per cent plant morality and number of grub/m2 was observed in treatment of clothianidin 50 WDG @ 2 g a.i. /kg and imidacloprid 40 + fipronil 40 WG @ 3 g a.i. /kg. These treatments were produced 2329 and 2296 yield of pod, 3970 & 3780 kg/ha yield of halum, respectively. Increased in yield over control in these treatments was recorded 57.79 and 55.56 per cent in pod, 76.29 and 64.65 per cent in halum. Whereas avoidable yield loss recorded of these treatments was recorded 36.63 and 35.71 per cent in pod, 43.27 and 39.27 per cent in halum. However, the highest 1:28.32 NICRB was recorded in treatment of chlorpyriphos 20 EC @ 30 ml a.i. /kg. The NICRB of clothianidin 50 WDG @ 2 g a.i. /kg and imidacloprid 40 + fipronil 40 WG @ 3 g a.i. /kg were recorded 1:14.95 and 1:9.20, respectively. The evaluated insecticides had no adverse effect on seed germination

scholarly journals Germination Behavior of Rauvolfia serpentine (L.) Seeds with the use of Different Seed Treatments

2021 ◽  
Author(s):  
Amit Kumar Tiwari ◽  
Prawal P.S. Verma ◽  
Dipender Kumar ◽  
Sonveer Singh ◽  
Rakesh Kumar ◽  
...  
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Seed Treatment ◽  
Inhibitory Effect ◽  
Germination Percentage ◽  
Hot Water ◽  
Cotton Cloth ◽  
Cow Dung ◽  
Seed Treatments ◽  
Seed Propagation

Background: Sarpagandha is an indigenous medicinal herb of Indian continent. It has many medicinal properties. Due to increasing demand of Sarpagandha, its exploitation is increasing continuously but for lack of cultivation, this plant has been listed in endangered category. Commercially, it is propagated through seeds but the main barrier of seed propagation is its irregular and low germination. Hence, the current study was undertaken to study the effect of growing media and seed treatment methods on seed germination and seedling growth of Sarpagandha to eliminate the inhibitory effect of the hard stony endocarp.Methods: Seed germination and seedling growth experiments of Sarpagandha were carried out with following different seed treatments, T1 (Control), T2 (Water soaking for 24 hours), T3 (water soaking for 48 hours), T4 (Water soaking for 24 hours + cotton cloth wrapping for 24 hours), T5 (GA3 200 ppm), T6 (FYM treatment for 24 hours), T7 (FYM treatment for 48 hours), T8 (Hot water treatment) and T9 (Cow dung treatment for 24 hours). Experiment was laid out in CRD. The data recorded on the various parameters were analyzed at 5% level of significance by using ANOVA.Result: Results indicated highest germination percentage (51), lowest mortality percent (49), minimum days for initiation of germination (23), minimum days taken for germination completion (33), highest speed of germination (3.77), maximum vigour index (1441.44), highest root (11.27 cm) and highest shoot length (17 cm) in T5 (GA3 200 ppm) followed by T3 (water soaking for 48 hours). Indicating, T5 (GA3 200 ppm) to be best seed treatment for higher germination and subsequent seedling growth of Sarpagandha (Rauvolfia serpentine L.).

scholarly journals Evaluation of Fungicides for the Control of Bakanae Disease of Rice Caused by Fusarium moniliforme (Sheldon)

2015 ◽  
Vol 19 (1) ◽  
pp. 49-55 ◽  
Author(s):  
MS Hossain ◽  
M Ayub Ali ◽  
MIU Mollah ◽  
MAI Khan ◽  
AKM Sajjadul Islam
Keyword(s):  
Seed Germination ◽  
Fresh Water ◽  
Fusarium Moniliforme ◽  
Seed Treatment ◽  
Yield Loss ◽  
Bakanae Disease ◽  
Overall Performance ◽  
Concentration Levels ◽  
Seedling Infection

Bakanae is one of the major diseases of rice in Bangladesh and causes substantial yield loss. To control the disease eleven fungicides from different fungicidal groups were evaluated for their efficacy against seed-borne fungus, F. moniliforme as seed treatment both in the laboratory and in the seed-bed during 2011 and 2012. In the laboratory the fungicides were evaluated at three concentration levels viz 2.5, 3.0 and 3.5 gm/L/kg seeds. Overall performance of the fungicides was found to be better in suppressing the seed-borne F. monilifome and increasing seed germination. Among the fungicides, Bavistin, Sunphanate, Nativo and Carzeb completely inhibiting the growth of F. moniliformeinvitro condition at their low (2.5 gm/L) concentration. Efficacy of the fungicides reduced to some extent when the treated seeds were washed with fresh water except Bavistin. Maximum (85%) average germination was found in Bavistin and Greenzeb treated seeds. The promising fungicides further evaluated to control seedling infection at low (2.5 gm/L) concentration and resulted significant reduction of bakanae infected seedlings in pot soil and in seed bed.Bangladesh Rice j. 2015, 19(1): 49-55

scholarly journals Investigation of Seed Treatments for Management of Bacterial Leaf Spot of Lettuce

Plant Disease ◽  
2002 ◽  
Vol 86 (2) ◽  
pp. 151-155 ◽  
Author(s):  
Ken Pernezny ◽  
Russell Nagata ◽  
Richard N. Raid ◽  
Janice Collins ◽  
Amanda Carroll
Keyword(s):  
Hydrogen Peroxide ◽  
Seed Germination ◽  
Sodium Hypochlorite ◽  
Seed Treatment ◽  
Xanthomonas Campestris ◽  
Lettuce Seed ◽  
Copper Hydroxide ◽  
Seed Treatments ◽  
Seedborne Inoculum ◽  
Soil Mix

Chemical seed treatments were evaluated for efficacy of disinfestation of lettuce seed that had been inoculated with Xanthomonas campestris pv. vitians. Three concentrations of each chemical were evaluated by treating seed lots for 5 or 15 min. In addition, the effects of each seed treatment on seed germination and early plant growth were examined by observing seed germination rates. Bacteria were not detected when seed were treated with 3 or 5% hydrogen peroxide for 5 or 15 min. Treatment of seed with 0.52% sodium hypochlorite was relatively ineffective at 5 and 15 min. When sodium hypochlorite was used at a 1% concentration for 15 min, the level of bacterial infestation was reduced to 2%. Suspensions of copper hydroxide plus mancozeb also reduced seedborne inoculum to ≤2%. Treatment of seed with copper hydroxide alone, benzoyl peroxide, or calcium peroxide did not reduce seed infestation levels significantly. Seed germination rates were 90% or greater for the majority of seed treatments tested in laboratory assays. Hydrogen peroxide treatments at a concentration of 5% reduced seed germination up to 28% compared with controls. However, no significant differences in germination were observed among control treatments (noninoculated, nontreated seed and inoculated, nontreated seed) and any of the chemical seed treatments when seed were sown in a pasteurized soil mix in the greenhouse.

scholarly journals Influence of a thiamethoxam seed treatment on acetolactate synthase–inhibiting herbicide–induced injury to inbred and hybrid imidazolinone-resistant rice

2019 ◽  
Vol 33 (2) ◽  
pp. 253-257
Author(s):  
Steven M. Martin ◽  
Jason K. Norsworthy ◽  
Robert C. Scott ◽  
Jarrod Hardke ◽  
Gus M. Lorenz ◽  
...  
Keyword(s):  
Field Experiment ◽  
Seed Treatment ◽  
Acetolactate Synthase ◽  
Growing Season ◽  
Canopy Height ◽  
Herbicide Application ◽  
Seed Treatments ◽  
Final Treatment ◽  
Herbicide Treatments ◽  
Potential Benefits

AbstractThe increased use of insecticide seed treatments in rice has raised many questions about the potential benefits of these products. In 2014 and 2015, a field experiment was conducted near Stuttgart and Lonoke, AR, to evaluate whether an insecticide seed treatment could possibly lessen injury from acetolactate synthase (ALS)–inhibiting herbicides in imidazolinone-resistant (IR) rice. Two IR cultivars were tested (a hybrid, ‘CLXL745’, and an inbred, ‘CL152’), with and without an insecticide seed treatment (thiamethoxam). Four different herbicide combinations were evaluated: a nontreated control, two applications of bispyribac-sodium (hereafter bispyribac), two applications of imazethapyr, and two applications of imazethapyr plus bispyribac. The first herbicide application was to two- to three-leaf rice, and the second immediately prior to flooding (one- to two-tiller). At both 2 and 4 wk after final treatment (WAFT), the sequential applications of imazethapyr or bispyribac plus imazethapyr were more injurious to CLXL745 than CL152. This increased injury led to decreased groundcover 3 WAFT. Rice treated with thiamethoxam was less injured than nontreated rice and had improved groundcover and greater canopy heights. Even with up to 32% injury, the rice plants recovered by the end of the growing season, and yields within a cultivar were similar with and without a thiamethoxam seed treatment across all herbicide treatments. Based on these results, thiamethoxam can partially protect rice from injury caused by ALS-inhibiting herbicides as well as increase groundcover and canopy height; that is, the injury to rice never negatively affected yield.

scholarly journals Imidacloprid seed treatments for the control of springtails in seedling brassicas

2002 ◽  
Vol 55 ◽  
pp. 317-321 ◽  
Author(s):  
P.J. Addison ◽  
P.W. Fisher
Keyword(s):  
Adverse Effect ◽  
Seedling Growth ◽  
Seedling Establishment ◽  
Seed Treatment ◽  
Field Trials ◽  
Seed Treatments ◽  
Early Seedling Growth ◽  
Pot Trials ◽  
Early Seedling

Two pot trials and two field trials were conducted to evaluate imidacloprid seed treatments for springtail control in forage brassica seedlings Imidacloprid at rates from 175 to 210 g ai/kg seed reduced garden springtail (Bourletiella hortensis) and lucerne flea (Sminthurus viridis) numbers by 6888 relative to the untreated controls Springtail damage was reduced and seedling establishment enhanced Imidacloprid proved as or more effective than furathiocarb or thiodicarb seed treatments and phorate granules Imidacloprid seed treatment had no adverse effect on either brassica germination or early seedling growth

scholarly journals Investigations of 2,4-d-resistant waterhemp and seed treatment and herbicide interactions in soybean

2017 ◽  
Author(s):  
◽  
Blake Remington Barlow
Keyword(s):  
Field Experiment ◽  
Seed Treatment ◽  
Field Research ◽  
Effective Control ◽  
Seed Treatments ◽  
The Third ◽  
Greenhouse Experiments ◽  
Modes Of Action ◽  
The U.S

Field research experiments were conducted in 2015 and 2016 in Missouri to determine whether interactions are present between herbicides sprayed prior to planting and seed treatments in soybean. Two varieties of soybean were chosen, one that was known to be tolerant to the herbicides sprayed and one that was known to be sensitive to these herbicides. Each of these soybean varieties were treated with a commonly used seed treatment and sprayed with three commonly used herbicides. The results of these experiments indicate that there were larger interactions present between herbicides and varieties than herbicides and seed treatments or seed treatments and varieties. Greenhouse and field research experiments were conducted in 2015 and 2016 to investigate a waterhemp population with suspected resistance to multiple herbicides including 2,4-D. Results form the field experiment suggested resistance to six of the eight herbicides screened. The only two herbicides that had effective control were dicamba and glufosinate. Greenhouse experiments confirmed the waterhemp population to be resistant to 2,4-D, atrazine, chlorimuron, fomesafen, glyphosate, and mesotrione making this population the third 2,4-D-resistant waterhemp population identified in the U.S., and the first population resistant to six different herbicidal modes of action.

Effect of Seed Treatment on Early Season Brown Spot Caused by Septoria glycines of Soybean

2016 ◽  
Vol 17 (4) ◽  
pp. 223-228 ◽  
Author(s):  
Jean C. Batzer ◽  
Yuba R. Kandel ◽  
Carl A. Bradley ◽  
Martin I. Chilvers ◽  
Albert U. Tenuta ◽  
...  
Keyword(s):  
Seed Treatment ◽  
Effective Concentration ◽  
Plant Age ◽  
Brown Spot ◽  
Control Treatment ◽  
Seed Treatments ◽  
Early Season ◽  
Colony Diameter ◽  
Progress Curve ◽  
Mist Chamber

Early season brown spot caused by Septoria glycines was compared in Illinois, Indiana, Iowa, Michigan, and Ontario, Canada, soybean fields planted with differing commercial seed treatments. Seed treatments that included fluopyram significantly reduced brown spot (P < 0.001). A greenhouse mist chamber experiment revealed that fluopyram seed treatment reduced the Area Under Disease Progress Curve of brown spot over a 6-week period (P < 0.001). Brown spot severity was unaffected by plant age at inoculation for the control treatment without fluopyram (P = 0.911); however, severity increased with plant age at inoculation for the fluopyram treatment (P = 0.009). The sensitivity of two S. glycines isolates to fluopyram was assessed by determining the effective concentration required to reduce its colony diameter growth in culture by 50% (EC50). Both isolates had an EC50 of 0.41 μg/ml of fluopyram. These results demonstrate that fluopyram seed treatment is effecttive at controlling early season brown spot in soybean. Accepted for publication 19 September 2016.

scholarly journals Efficacy of different fungicides and biopesticides for the management of lentil wilt (Fusarium oxysporum f. sp. lentis)

2021 ◽  
Vol 8 (01) ◽  
Author(s):  
KAMLESH RAM ◽  
RAMESH SINGH
Keyword(s):  
Seed Germination ◽  
Grain Yield ◽  
Plant Extracts ◽  
Seed Treatment ◽  
In Vivo Studies ◽  
Test Plant ◽  
Mycelia Growth ◽  
Wilt Incidence

In Vitro and In Vivo studies on the efficacy of fungicides and biopesticides. Among the fungicides, in Carbedazim to the most effective as they have inhibited the mycelia growth completely of the test fungus, and Benomyl, Topsin - M, Ridomil,Vitavax were found the next best in inhibiting the mycelial growth of the pathogen up to 92.11% to 83.46% respectively. Sadabahar was least effective plant extracts which causes 42 mm of radial growth and inhibited the growth of the only 19.23%. In Vivo condition the maximum seed germination (95.50% and 95.33%), minimum wilt incidence (5.16% and 3.65%) and highest grain yield (10.50 q/ha and 10.35 q/ha) was found seed treatment with Carbendazim (0.2%). Among the test plant extracts Tulsi was lested effective, which show the minimum seed germination (80.00% and 77.50%), maximum wilt incidence (15.70% and 14.10%), and lowest grain yield (3.92 q/ha and 4.17 q/ha).

scholarly journals Efficacy of Fungicidal Seed Treatments on Seed Borne Diseases of Green Gram

2020 ◽  
Vol 7 (3) ◽  
pp. 138-143
Author(s):  
A. J. Deshmukh ◽  
◽  
A. N. Sabalpara ◽  
R. P. Bambharolia ◽  
◽  
...  
Keyword(s):  
Leaf Spot ◽  
Seed Treatment ◽  
Leaf Blight ◽  
Green Gram ◽  
Seed Treatments ◽  
Thiophanate Methyl ◽  
Anthracnose Disease ◽  
Pooled Data ◽  
Alternaria Leaf Spot

The experiment was conducted to perceive the effect of fungicidal seed treatment on seed borne diseases of green gram on susceptible cv. GM-3 with nine different fungicides. Results revealed that dry seed treatment with either mix formulation of carbendazim + mancozeb or thiophanate methyl or carbendazim @ 2.5 g kg-1 seeds is very effective in field to control Macrophomina leaf blight, Alternaria leaf spot and Anthracnose diseases. Two years pooled data indicated that PDI of Macrophomina leaf bilght was significantly lower in dry seed treatment with carbendazim + mancozeb (0.99%, 12.90%) which was statistically at par with thiophanate methyl (1.54%, 13.80%) followed by carbendazim (0.99%, 14.06%) at 35 and 65 DAS, respectively. Two years pooled data of Alternaria leaf spot indicated that the PDI of was significantly lower in dry seed treatment with carbendazim + mancozeb (2.64%, 11.15%) which was statistically at par with thiophanate methyl (2.74%, 11.30%) followed by carbendazim (2.84%, 11.37%) at 35 and 65 DAS. Two years pooled data of Anthracnose disease indicated that the PDI of Anthracnose was significantly lower in dry seed treatment with carbendazim + mancozeb (0.81%, 6.71%).

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