A planting template for seed treatment trials

1991 ◽  
Vol 71 (3) ◽  
pp. 851-853 ◽  
Author(s):  
B. Berkenkamp ◽  
E. -Z. Jan
Keyword(s):  
Key Words ◽  
Seed Treatment ◽  
Seedling Emergence ◽  
Treatment Trials ◽  
Seeding Method ◽  
Depth Control ◽  
Seed Placement

To reduce variation of seedling emergence in chemical seed treatment trials, a template and frame unit was designed, constructed and tested with seed of various crops. This system controlled the depth of seed placement. Variability in seeding depth was less with the template than with a Swift Current power seeder and a hand-pushed cone seeder. Key words: Seeding, method, depth control

On-Farm Soybean Seed Treatment Trials

2015 ◽  
Author(s):  
Jim Fawcett ◽  
Zack Koopman ◽  
Lance Miller ◽  
Wayne Roush ◽  
Josh Sievers
Keyword(s):  
Seed Treatment ◽  
Soybean Seed ◽  
Treatment Trials ◽  
On Farm

scholarly journals Effect of seed treatment and foliar spray with fungicides in controlling black point disease of wheat

1970 ◽  
Vol 34 (3) ◽  
pp. 425-434 ◽  
Author(s):  
PK Malaker ◽  
IH Mian
Keyword(s):  
Economic Analysis ◽  
Grain Yield ◽  
Key Words ◽  
Seed Weight ◽  
Seed Treatment ◽  
Foliar Spray ◽  
The Other ◽  
Gross Margin ◽  
Black Point ◽  
Wheat Seeds

The efficacy of seed treatment and foliar spray with fungicides in controlling black point incidence of wheat seeds was evaluated in the field. Two seed treating fungicides, namely Vitavax-200 and Homai-80WP were used @ 0.25% of dry seed weight and foliar spray with Tilt-250EC (0.05%) was applied in six different schedules. Untreated and unsprayed controls were also maintained. Seed treatment with either Vitavax-200 or Homai-80WP significantly increased plant population and grain yield, but none of them was found effective in reducing black point incidence. On the other hand, foliar sprays with Tilt-250EC under all the spray schedules except spraying at 70 and 90 DAS significantly minimized the disease severity over unsprayed control. Among the different spray schedules, spraying at 30, 40, 50, 60, 70, 80, and 90 DAS appeared to be most effective, which was similar to spraying at 30, 45, 60, 75, and 90 DAS in reducing black point incidence and increasing grain yield. Economic analysis on yield advantage showed that the highest additional gross margin of Tk. 6120/ha with BCR 2.57 was obtained from five sprays applied at 30, 45, 60, 75, and 90 DAS. Key Words: Seed treatment, foliar spray, black point, wheat. DOI: 10.3329/bjar.v34i3.3968 Bangladesh J. Agril. Res. 34(3) : 425-434, September 2009

scholarly journals Impacts of bracteole removal and seeding rate on seedling emergence of halophyte shrubs: implications for rangeland rehabilitation in arid environments

2019 ◽  
Vol 41 (1) ◽  
pp. 33
Author(s):  
Mounir Louhaichi ◽  
Sawsan Hassan ◽  
Ali Mekki Missaoui ◽  
Serkan Ates ◽  
Steven L. Petersen ◽  
...  
Keyword(s):  
Seed Treatment ◽  
Nutritive Value ◽  
Block Design ◽  
Seedling Emergence ◽  
Direct Seeding ◽  
Arid Environments ◽  
Seeding Rate ◽  
Seed Processing ◽  
Processing Techniques ◽  
Positive Effect

Direct seeding techniques often result in unsatisfactory outcomes in rangeland rehabilitation, primarily because of low seedling emergence and poor establishment. Seed processing techniques aimed at improving seedling emergence have gained interest by pasture managers. The purpose of this study was to investigate the combined effects of bracteole removal and seeding rate on seedling emergence in seven halophytic species: Atriplex halimus, A. canescens, A. leucoclada, A. nummularia, A. lentiformis, Salsola vermiculata and Haloxylon aphyllum under semi-arid conditions in Tel Hadya (Syria). Each of these species was evaluated for seedling emergence under two seed treatments (bracteoles removed and non-removed bracteoles) with three seeding rates (10, 30 and 60 seeds per pot), in a completely randomised block design. The results showed a positive effect of seed treatment on seedling emergence for all studied species. The native A. halimus had the highest emergence percentages whereas the introduced A. mummularia, had the lowest. However, there were no significant effects of seeding rates on seedling emergence. These results showed that bracteole removal could improve germination and seedling emergence, and potentially increase the rate of establishment of the species studied. Therefore, when implementing rangeland rehabilitation projects, bracteole removal needs to be considered. The native S. vermiculata should be recommended for direct seeding in the West Asia and North Africa region given its high seedling emergence, known high palatability, nutritive value, and high auto-regeneration performance.

scholarly journals Studies on High Frequency Shoot Regeneration in Sesame (Sesamum indicum L.)

2012 ◽  
Vol 21 (1) ◽  
pp. 45-52 ◽  
Author(s):  
Bangaramma S. Wadeyar ◽  
R. Lokesha
Keyword(s):  
Key Words ◽  
Shoot Regeneration ◽  
Plant Tissue ◽  
High Frequency ◽  
Sesamum Indicum ◽  
Direct Seeding ◽  
The Other ◽  
Seeding Method ◽  
Regeneration Response ◽  
High Sucrose

High frequency shoot regeneration was attempted in sesame (Sesamum indicum L. Pedaliaceae), using five genotypes/varieties viz. Tumkur and Gulbarga Locals (land races), W-II, E-8 and DS-1 (varieties). The hypocotyl-derived callus obtained through direct seeding method was placed on MS with five different treatments viz. pre-culture of callus on high sucrose (6 - 9%) for two weeks and transferring on to plain MS with 3% sucrose, MS with variable concentrations of TDZ alone, MS with constant TDZ and variable concentrations of BA and IAA, MS with variable concentrations of BA and IAA without TDZ, MS with ABA and AgNO3 and MS with BAP, NAA and AgNO3.  Highest frequency of cent per cent shoot regeneration was initiated in variety DS-1on MS containing NAA 2.5 mg/l, BAP 3.5 mg/l and 20 µM AgNO3 with 2.50 mean shoots/callus followed by 91.6% in variety W-II on MS containing 25 µM TDZ with 2.20 mean shoots/callus. The other treatments had poor shoot regeneration response. The results have been discussed in the light of sesame improvement through biotechnological ways.   Key words: Sesamum indicum, hypocotyl, high frequency,  shoot regeneration   D. O. I. 10.3329/ptcb.v21i1.9562   Plant Tissue Cult. & Biotech. 21(1): 45-52, 2011 (June)

scholarly journals Treatment with fungicides and insecticides on the physiological quality and health of wheat seeds

2014 ◽  
Vol 36 (4) ◽  
pp. 392-398 ◽  
Author(s):  
Julia Abati ◽  
Claudemir Zucareli ◽  
José Salvador Simoneti Foloni ◽  
Fernando Augusto Henning ◽  
Cristian Rafael Brzezinski ◽  
...  
Keyword(s):  
Seed Treatment ◽  
Seedling Emergence ◽  
Accelerated Aging ◽  
Dry Weight ◽  
Test Method ◽  
Wheat Cultivars ◽  
Chemical Treatments ◽  
Seed Health ◽  
Health Quality ◽  
Physiological Quality

Seed treatment with insecticides and fungicides has become an important practice for ensuring initial plant stand in establishing crops. In this context, the aim of this study was to evaluate the influence of chemical seed treatment with insecticides and fungicides on the physiological quality and health of the seeds of wheat cultivars. Seeds of the wheat cultivars BRS Pardela and BRS Gaivota were used, subjected to the following chemical treatments: 1- control, 2- carboxin + thiram + imidacloprid + thiodicarb, 3- carbendazim + thiram + imidacloprid + thiodicarb, 4- fipronil + thiophanate-methyl + pyraclostrobin, 5- triadimenol + imidacloprid + thiodicarb, 6- fipronil, and 7- imidacloprid + thiodicarb. Physiological quality was evaluated by tests of germination, accelerated aging, the length and dry weight of shoots and roots, and seedling emergence in the field. Seed health quality was evaluated by the blotter test method. The seeds of the wheat cultivars tested respond differently to the chemical treatments in regard to effects on germination and vigor. The treatment with triadimenol + imidacloprid + thiodicarb is harmful to seedling development. For the BRS Gaivota cultivar, the seed treatment with carboxin + thiram + imidacloprid + thiodicarb; and carbendazim + thiram + imidacloprid + thiodicarb improved seedling establishment in the field compared to the control.

Effect of seed damage and metalaxyl seed treatment on pythium seedling blight and seed yield of field pea

2001 ◽  
Vol 81 (3) ◽  
pp. 509-517 ◽  
Author(s):  
S. F. Hwang ◽  
B. D. Gossen ◽  
K. F. Chang ◽  
G. D. Turnbull ◽  
R. J. Howard
Keyword(s):  
Seed Yield ◽  
Seed Treatment ◽  
Effective Means ◽  
Seedling Emergence ◽  
Field Pea ◽  
Laboratory Studies ◽  
Seed Vigour ◽  
Stand Establishment ◽  
Seed Damage ◽  
The Impact

When cool, wet conditions persist after planting, Pythium spp. can be an important constraint to stand establishment in field pea. Laboratory studies and field trials were conducted over 3 yr to assess the impact and evaluate the interactions of Pythium spp., metalaxyl seed treatment and damage to seed on seedling establishment, root rot severity and seed yield of field pea. Seedling emergence, seedling size, and seed yield were reduced by inoculation with Pythium spp. and by mechanical damage to the seed. Fungicide seed treatment reduced the impact of seed damage, but did not always restore seedling emergence and seed yield to the same level as from undamaged seed. Undamaged seed treated with metalaxyl was not affected by inoculation with Pythium spp. Differences among cultivars, although often significant, were small relative to the effect of seed injury. Laboratory studies showed a negative linear relationship between inoculum concentration and emergence from untreated seed. They also showed that Pythium spp. had a similar impact on seedling emergence in cool (20/10°C day/night) and cold (12/6°C) soils. This study showed that planting fungicide-treated, high-quality field seed was an effective means of maximizing emergence and stand establishment for commercial field pea production. Key words: Pisum sativum, seed vigour, metalaxyl, Pythium, seed damage

Seedling emergence after maternal bentazon application to 10 cocklebur (Xanthium strumarium) populations

1994 ◽  
Vol 74 (4) ◽  
pp. 863-866 ◽  
Author(s):  
Jianhua Zhang ◽  
Paul B. Cavers
Keyword(s):  
Seed Germination ◽  
Key Words ◽  
Seed Bank ◽  
Seedling Emergence ◽  
Application Rate ◽  
Xanthium Strumarium ◽  
Cultivated Land ◽  
Mother Plants ◽  
Viable Seeds ◽  
Seedling Characteristics

Maternal environments have been reported to affect various seed and seedling characteristics in many plants. In this study, we examined the effect of bentazon application to the mother plants on seed germination and seedling emergence of 10 cocklebur populations from wetlands or cultivated land. The mortality or longevity of fully developed seeds was affected significantly by bentazon application. Rate of seedling emergence showed little response, whereas percentage seedling emergence and percentage viable seeds in the soil were reduced by bentazon treatment to the mother plants. Populations from wetlands produced seedlings earlier than those from cultivated land. Key words: Seedling emergence, seed bank, herbicide, bentazon, cocklebur, Xanthium strumarium

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