scholarly journals Onion Maggot Control with Seed Treatments, 1994

1995 ◽  
Vol 20 (1) ◽  
pp. 101-101
Author(s):  
D. R. Webb ◽  
A. G. Taylor ◽  
M. L. Hessney ◽  
C. J. Eckenrode
Keyword(s):  
New York ◽  
Block Design ◽  
Seed Treatments ◽  
Onion Maggot ◽  
Row Width ◽  
Randomized Complete Block Design ◽  
Muck Soil

Abstract Seeds were planted 27 Apr in muck soil near Prattsburg, New York, on Franjo Farms. Plots were single rows, 30 ft long replicated 4 times in a randomized complete block design. Germination and damage counts were recorded from the center 20 ft of each row. All seeds were planted using a hand-pushed cone seeder at the rate of 9 seeds/ft. All seeds were treated with Progro at the rate of 25 g of formulation/kg of raw seed to minimize incidence of onion smut (Urocystis cepulae). The standard in-furrow treatment of Lorsban and one check, were treated with Dithane F-45, rather than Progro, applied in-furrow at 2.4 qts formulation in 75 gal water/acre based on a 15-inch row width.

scholarly journals Evaluation of Onion Lines for Resistance to Onion White Rot and Onion Maggot

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 830G-831
Author(s):  
M.R. McDonald ◽  
T. Lewis ◽  
I. Goldman
Keyword(s):  
Block Design ◽  
Organic Soil ◽  
White Rot ◽  
Onion Maggot ◽  
Sclerotium Cepivorum ◽  
Randomized Complete Block Design ◽  
Commercial Cultivars ◽  
Low Levels ◽  
Field Plots

Onion lines were evaluated for resistance to Allium white rot (Sclerotium cepivorum Berk.) and onion maggot [Delia antigua (Meig.)] in field plots established on organic soil in the Bradford Marsh, Ontario. White rote valuations were conducted on 20 lines in 1992–1994, with follow-up laboratory trials in 1995. Onion maggot screening was conducted on these same lines in 1993 and 1994. Plots were arranged in a randomized complete-block design with four replications per line. Significant differences in susceptibility to white rot were found in 1992 and 1993, while differences in onion maggot resistance were identified in 1993 and 1994. Commercial cultivars Norstar and Fortress had relatively low levels of onion maggot damage and Fortress demonstrated some tolerance to white rot. Other lines with low levels of white rot infection were 1292-91, 1564-91, 124-93, 116-93, and 117-93, from the breeding program at the Univ. of Wisconsin. Line 1292-91 also had low levels of onion maggot damage. The horticultural characteristics of the onion lines will be discussed.

scholarly journals Control of Resistant Colorado Potato Beetle in Early Market Potato, Big Lake, Mn, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 115-115
Author(s):  
David Noetzle ◽  
Jennifer Miller
Keyword(s):  
Colorado Potato Beetle ◽  
Block Design ◽  
Potato Field ◽  
Synthetic Materials ◽  
Potato Beetle ◽  
Commercial Potato ◽  
Row Width ◽  
Randomized Complete Block Design ◽  
The Individual ◽  
Early Market

Abstract Continued failure of most insecticides for control of CPB in the Anoka Sand Plains growing area stimulated further comparisons of biologicals, inorganics, and synthetic materials for CPB management. Soils are sands at this location. Plots were established in an irrigated commercial potato field. The individual plot consisted of 4—25 ft rows with a row width of 3 ft. Treatments were arranged in a randomized complete block design and were replicated 4 times. The grower treated all of the field, including the plots, with Thiodan and Asana XL at 1.0 lb and 0.5 lb Al/acre respectively on 8 Jul and 16 Jul. Plot treatments were applied on 25 Jun, 6 and 19 Jul using a CO2 hand sprayer with about 20 gals total material/acre and 40 psi pressure. Larval ratings and defoliation estimates were taken on 6 and 19 Jul. Vines were killed on 3 Aug and yields collected on 18 Aug. The center 2 rows of each plot were harvested for yield.

Investigations of the Potential Interactions Between Pre-emergence Residual Herbicides, Variety, and Seed Treatments in Soybean

2018 ◽  
Vol 32 (5) ◽  
pp. 570-578
Author(s):  
Blake R. Barlow ◽  
Lovreet S. Shergill ◽  
Mandy D. Bish ◽  
Kevin W. Bradley
Keyword(s):  
Bacillus Subtilis ◽  
Seed Treatment ◽  
Field Experiments ◽  
Block Design ◽  
Yield Losses ◽  
Treatment Combination ◽  
Seed Treatments ◽  
Randomized Complete Block Design ◽  
Chlorimuron Ethyl ◽  
Potential Interactions

AbstractField experiments were performed in 2016 and 2017 in Missouri to determine whether interactions exist between PRE herbicides and seed treatments in soybean. The experiments consisted of a randomized complete block design with factorial arrangements of varieties, seed treatments, and herbicides. We selected two genetically similar varieties of soybean, one with known tolerance to PPO-inhibiting herbicides and one with known sensitivity. Each variety of seed received three separate seed treatment mixtures (STMs): (1) STM1, imidacloprid plus prothioconazol+penflufen+metalaxyl plus metalaxyl plusBacillus subtilis+B. pumilis, (2) STM2,Pasteuria nishizawaeplus thiamethoxam plus prothioconazol+penflufen+metalaxyl plus metalaxyl plusB. subtilis+B. pumilis, and (3) STM3, fluopyram plus imidacloprid plus prothioconazol+penflufen+metalaxyl plus metalaxyl plusB. subtilis+B. pumilis. Chlorimuron-ethyl+flumioxazin+pyroxasulfone, chlorimuron-ethyl+flumioxazin+metribuzin, and chlorimuron-ethyl+sulfentrazone were applied PRE to each variety and seed treatment combination at 1× and 2× the labeled use rate. Chlorimuron-ethyl+sulfentrazone treatment at the 2× rate resulted in greater injury of 8% and 14% to the sensitive variety than the tolerant in 2016 and 2017, respectively; this was the highest injury observed from any herbicide treatment in either year. In 2017, chlorimuron-ethyl+sulfentrazone resulted in the greatest height reductions in both varieties, but this reduction was more evident in the sensitive (19%) than in the tolerant (6%) variety. Overall, yield differences between the two varieties were not consistent between years, and for both varieties, the sulfentrazone-containing treatments resulted in the highest yield losses. The results of this research indicate that there is a larger interaction between herbicides and varieties than there is between herbicides and seed treatments, or seed treatments and varieties.

scholarly journals Productive Increase in Soybeans from Hormone Treatment, Inoculation and Co-inoculation

2020 ◽  
pp. 33-43
Author(s):  
Luiz Leonardo Ferreira ◽  
Neusmar Rodrigues Valentim Júnior ◽  
João Carvalho de Morais Neto ◽  
Ivan Ricardo Carvalho ◽  
Marilaine de Sá Fernandes ◽  
...  
Keyword(s):  
Block Design ◽  
Hormone Treatment ◽  
Diazotrophic Bacteria ◽  
Seed Treatments ◽  
Soybean Cultivars ◽  
Technological Advances ◽  
Randomized Complete Block Design ◽  
Synthetic Hormones ◽  
Production Increase ◽  
The Many

The increase in productivity in soybean cultivation has been achieved by many Brazilian producers, due to the technological advances related to soil management, mineral nutrition, pest and disease control, genetic improvement, and the use of beneficial microorganisms via inoculation and co-inoculation. However, the application of inoculants based on Bradyrhizobium japonicum and Azospirillum brasilense still needs to be better studied among the many soybean cultivars available in the market. Therefore, the objective of this study is to evaluate the production increase in three soybean cultivars, through the application of synthetic hormones, inoculant and co-inoculant. The experimental design was a randomized complete block design with four repetitions, in a 3x6 factorial scheme, with three soybean cultivars (Desafio 8473, TMG 1180 and CD 2737) and six seed treatments (Control, Inoculation, Hormonal, Co-inoculation, Co-inoculation + Hormonal and Inoculation + Hormonal). The treatments with the diazotrophic bacteria (Inoculation + Co-inoculation) and Hormonal did not influence the yields of cultivars 'CD 2737' and 'Desafio 8473', which can only be cultivated with the standard seed treatment of the region. The 'TMG 1180' cultivar has it’s yield increased when it’s seeds are inoculated with Hormonal seed treatments and with diazotrophic bacteria in Co-inoculation.

scholarly journals Growth, Productivity and Quality of Soybean Grains, Submitted to Different Seed Treatments

2019 ◽  
Vol 11 (11) ◽  
pp. 274
Author(s):  
Mádilo Lages Vieira Passos ◽  
Lusiane de Sousa Ferreira ◽  
Késsia Tenório Figueirinha ◽  
Jarlyson Brunno Costa Souza ◽  
Antonio Gabriel da Costa Ferreira ◽  
...  
Keyword(s):  
Grain Yield ◽  
Seed Treatment ◽  
Block Design ◽  
Seed Treatments ◽  
Thiophanate Methyl ◽  
Randomized Complete Block Design ◽  
Productive Potential ◽  
Crop Cycle ◽  
Reproductive Phases

The protection conferred via chemical treatment of seeds is indispensable to the normal development of crops, with a view to the best use of its productive potential. The objective of this study was to evaluate the soybean crop response, cultivate ‘FTS Paragominas RR’, to seed treatment. The study was conducted in an experimental area of the Center of Agrarian and Environmental Sciences of the Federal University of Maranhão, in Chapadinha (MA), from February to June 2018. A randomized complete block design was used, with split-plot in time. The plots consisted of five seed treatments: thiophanate-methyl + fluazinam fungicides, fludioxonil, carbendazim + thiram, the insecticide fipronil and the absence of the application. Throughout the crop cycle the agronomic characteristics were verified: plant height, stem diameter, and leaf area. And, at the time of harvesting, grain yield, the height of insertion of the first pod, the total number of pods and weight of 1000 grains. Seed treatments induced very variable responses on the growth and development of soybean ‘FTS Paragominas RR’. The best performances were obtained with the use of thiophanate-methyl + fluazinam fungicides (dose 198 mL) and fludioxonil (dose 200 mL). The application of carbendazim + thiram and fipronil, both at a dose of 200 mL, presented adverse effects throughout the vegetative and reproductive phases of soybean ‘FTS Paragominas RR’. None of the products provided significant increases in grain yield.

scholarly journals PRELIMINARY PERFORMANCE OF NEW GERMAN AND BELGIAN CHERRY ROOTSTOCKS IN MICHIGAN AND NEW YORK

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1135c-1135
Author(s):  
R.L Perry ◽  
J. N. Cummins
Keyword(s):  
New York ◽  
North America ◽  
Interspecific Hybrid ◽  
Sweet Cherry ◽  
Block Design ◽  
Sour Cherry ◽  
West Germany ◽  
Randomized Complete Block Design ◽  
Cherry Rootstocks ◽  
Hybrid Clones

In 1987, the NC 140 Regional Rootstock Testing Committee established sweet and sour cherry rootstock trials in 16 locations in North America. This paper will present preliminary results on the performance of Hedelfingen (sweet) and Montmoreney (sour) cherry cultivars at the New York and Michigan sites. The rootstock under test include 3 clones from Gembloux, Belgium, Colt, 4 MxM hybrids, and 9 to 13 interspecific hybrid clones from Giessen, West Germany. Clonal rootstock also under test for Montmorency include St. Lucie 64, 275 and, in New York, Holly Jolivette. Rootstock treatments differ slightly among sites and are replicated 7-8 times in a randomized complete block design. The Giessen rootstock 148/1 and 195/1 have, to date, demonstrated excellent influence on sweet cherry precocity. Sweet and sour cherry on Colt and the MxM hybrids have been most vigorous at both sites. Montmorency is most precocious on Mahaleb seedling followed by Giessen 148/1 at both locations. Data for 1990 on rootstock performance will be included in the oral presentation.

scholarly journals The Pawpaw Regional Variety Trial (RVT): Background, Rationale and Early Data

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 667a-667
Author(s):  
Desmond R. Layne ◽  
R. Neal Peterson
Keyword(s):  
New York ◽  
North Carolina ◽  
South Carolina ◽  
Joint Venture ◽  
Block Design ◽  
First Year ◽  
Cross Sectional ◽  
Randomized Complete Block Design ◽  
Local Germplasm ◽  
Beijing China

In 1993, PPF and KSU embarked on a joint venture to test within pawpaw's native range many of the commercially available named pawpaw cultivars and PPF's advanced selections. Orchards for RVT were planted in 17 locations from Fall 1995 through Fall 1996 (possibly into 1997) consisting of 300 trees each. At each RVT site, eight replicate trees of each of the 28 grafted scion varieties will be tested in a randomized complete-block design. Named varieties that are secured for testing include Middletown, Mitchell, NC-1, Overleese, PA-Golden, Sunflower, Taylor, Taytwo, Wells, and Wilson. The other 18 clones to be evaluated originated in PPF orchards at the Univ. of Maryland Experiment Stations at Wye and Keedysville. Seedling trees from local native sources were planted around the perimeter as a buffer against edge effects and to allow comparisons with local germplasm. Identical orchards of the RVT are located in the following states: Arizona, Indiana, Iowa, Kentucky (two sites), Louisiana, Maryland, Michigan, Nebraska, New York, North Carolina, Ohio, Oregon, South Carolina, Tennessee (two sites), and the Chinese Academy of Forestry, Beijing, China. An orchard of nonidentical design is located in Florida. Additional sites in Connecticut and Chile are contemplated. Variables being studied in the trial include climate, culture, pests, growth, flowering, yield, and fruit characteristics. Trees will be evaluated for several years for yield, year-to-year consistency, regional suitability, etc. At the end of the trial period, regional recommendations will be made. Scion–rootstock compatibility based on percent scion take, scion growth (scion height and cross-sectional area), and first year field data are presented and discussed.

DISTRIBUSI DAN IDENTIFIKASI POPULASI SINTRONG (Crossocephalum crepidiodes.Benth) RESISTEN PARAKUAT PADA LAHAN JAGUNG (Zea mays) DI KABUPATEN DAIRI

2017 ◽  
Vol 4 (2) ◽  
pp. 149-161
Author(s):  
Berton Sianturi
Keyword(s):  
Zea Mays ◽  
Dose Response ◽  
High Resistance ◽  
Block Design ◽  
Recommended Dose ◽  
Second Step ◽  
Resistance Level ◽  
Susceptible Population ◽  
Randomized Complete Block Design ◽  
Susceptible Populations

Crassocephalum crepidioides on Cornfields in Dairi Regency had been reported tobecome more difficult to control using paraquat. The objective of the research was todetermine the characteristics and the distribution of C.crepidioides resistant to paraquatin cornfields. The experiment was carried out in two steps, the first step was screeningthe population of C. crepidioides with paraquat at the recommended dose, and the secondstep, dose-response experiment for the resistance level of C. crepidioides population withdose 0, 76, 152, 304,5, 609, 1218, and 2436 g.ai /ha. In the first step experiment, paraquatdichloride was applied at 280 g.ai/ha. The treatments were arranged in a randomized blockdesign with 3 replication. The second step experiment was that the resistant populationsconfirmed in the first experiment were sprayed for their dose-response. The treatmentswere arranged in a randomized complete block design (CRBD). The results showed thatof 30 populations of C. crepidiodes, 19 populations (63.3%) were categorized to beresistant with the mortality ranging from 10.84% to 52.08%, and 11 populations (36.7%),was categorized as high resistance with mortality of 0% to 9.21%. The level ofresistance (R/S) of R-C25, R-C27, and R-C30 populations of C. crepidioides were 12,3,14,86, and 24,83 times consecutively, compared with the susceptible population. Thenumber of C. crepidioides chlorophyl leaves in susceptible populations was significantlylower than that of a resistant populations.

Response of corn (Zea mays L.) to various organic-based fertilizers in marginal upland of Sta. Rita, Samar

2017 ◽  
pp. 31-43
Author(s):  
Berta Ratilla ◽  
Loreme Cagande ◽  
Othello Capuno
Keyword(s):  
Block Design ◽  
Management Strategies ◽  
Chemical Properties ◽  
Organic Fertilizers ◽  
Growth And Yield ◽  
Physical And Chemical Properties ◽  
Total N ◽  
Randomized Complete Block Design ◽  
Physical And Chemical ◽  
And Chemical Properties

Organic farming is one of the management strategies that improve productivity of marginal uplands. The study aimed to: (1) evaluate effects of various organic-based fertilizers on the growth and yield of corn; (2) determine the appropriate combination for optimum yield; and (3) assess changes on the soil physical and chemical properties. Experiment was laid out in Randomized Complete Block Design, with 3 replications and 7 treatments, namely; T0=(0-0-0); T1=1t ha-1 Evans + 45-30-30kg N, P2O5, K2O ha-1; T2=t ha-1 Wellgrow + 45-30-30kg N, P2O5, K2O ha-1; T3=15t ha-1 chicken dung; T4=10t ha-1 chicken dung + 45-30-30kg N, P2O5, K2O ha-1; T5=15t ha-1 Vermicast; and T6=10t ha-1 Vermicast + 45-30-30kg N, P2O5, K2O ha-1. Application of organic-based fertilizers with or without inorganic fertilizers promoted growth of corn than the control. But due to high infestation of corn silk beetle(Monolepta bifasciata Horns), its grain yield was greatly affected. In the second cropping, except for Evans, any of these fertilizers applied alone or combined with 45-30-30kg N, P2O5, K2O ha-1 appeared appropriate in increasing corn earyield. Soil physical and chemical properties changed with addition of organic fertilizers. While bulk density decreased irrespective of treatments, pH, total N, available P and exchangeable K generally increased more with chicken dung application.

Effect of Bio and Organic Fertilizers on Pumpkin's (Cucurbita pepo L.) Leave Content of N, P, and K

2020 ◽  
Vol 10 (1) ◽  
pp. 241-245
Author(s):  
Ammar Hameed Madi ◽  
Jawad A. Kamal Al-Shibani
Keyword(s):  
Cucurbita Pepo ◽  
Sandy Loam ◽  
Block Design ◽  
Organic Fertilizers ◽  
Flowering Stage ◽  
College Of Agriculture ◽  
Significant Difference ◽  
Randomized Complete Block Design ◽  
Loam Soil ◽  
Four Levels

This study was conducted to investigate the effect of bacterial bio-fertilization A. chroococcum and P. putide and four levels of compost (0, 1, 2, 3) tons.h-1 on the leaves content of N.P.K elements. The experiment was carried out in one of the greenhouses of the College of Agriculture - University of Al-Qadisiyah during fall season 2018-2019. It designed in accordance with the Randomized Complete Block Design (RCBD) with three replicates in sandy loam soil. The means of treatments were compared with the least significant difference (LSD) at (5)% probability level. The results present that the treatments of A. chroococcum, P. putide and compost at (3) tons.kg-1 significantly increases the leaves content of K.P.K compared to all other treatments in the flowering stage (4.970, 0.5000, and 4.930) mg.kg-1, respectively. This treatment was followed by the effect of the treatment of A. chroococcum and compost at (3) tons.kg-1, which increases the values of all traits except the leaf content of (P). Bio-fertilizer with P. putide + A. chroococcum significantly increases the leaves' content of P.

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