The effects of seed size, seed treatment, method of shelling, and organic matter on the establishment of peanuts (Arachis hypogaea) at Katherine, N.T

1968 ◽  
Vol 8 (30) ◽  
pp. 81
Author(s):  
IMW Wood
Keyword(s):  
Organic Matter ◽  
Seed Size ◽  
Seed Treatment ◽  
Marked Effect ◽  
Mechanical Damage ◽  
Treatment Method ◽  
Seed Treatments ◽  
Adverse Conditions ◽  
Mercury Acetate ◽  
Phenyl Mercury

The effect of seed treatment, seed size, incorporated organic matter, and method of shelling on the establishment of peanuts at Katherine, N.T. was studied during two seasons, 1965-66 and 1966-67. Mechanical damage to the seed during machine shelling was one of the main causes of poor establishment : the larger seed was more vulnerable and the smaller grades of mature, well-filled seed may be preferable. Seed treatments that included 'Ceresan' (phenyl mercury acetate) overcame much of the damage caused by machine shelling. It was concluded that the seed treatments gave protection against fungal infection when the testa had been damaged but could not rectify damage to the radicle. Seasonal conditions after sowing were very important in determining the level of establishment, and the relative efficiency of seed treatment was greater under adverse conditions. Incorporated organic matter had no marked effect on establishment, although peanut residue caused a small but significant reduction.

Effect of fungicides on the germination of maize seed after storage

1970 ◽  
Vol 10 (43) ◽  
pp. 174
Author(s):  
AM Smith
Keyword(s):  
Methyl Mercury ◽  
Maize Seed ◽  
Seed Treatments ◽  
Mercury Acetate ◽  
Phenyl Mercury

The effect of seed treatments with three fungicides, Ceresan (2.3 per cent phenyl mercury acetate and 0.4 per cent ethoxy mercury silicate), Coversan (96 per cent tetrachloro-p-benzoquinone), and panogen (2.2 per cent methyl mercury dicyandiamide), on the germination of two cultivars of maize stored for up to 12 months after treatment was determined. None of the treatments affected the germination of maize.

scholarly journals Seed priming technology in spice crops: A review

1970 ◽  
pp. 21-24
Author(s):  
K. Arunkumar, V. Jegadeeswari, C. Ushamalini
Keyword(s):  
Seed Treatment ◽  
Hydrolytic Enzyme ◽  
Seed Priming ◽  
Treatment Method ◽  
Germination Percentage ◽  
Strong Increase ◽  
Antioxidant Enzyme Activities ◽  
Super Oxide Dismutase ◽  
Adverse Conditions ◽  
Phenyl Alanine

Seed priming is one of the important method of seed treatment is the process of controlled hydration of seeds. At the time to a level that permits the pre-germinative metabolic activity, but that prevents actual emergence of the radicle is also known as pre germination seed treatment method. Seed priming is useful for increase the speed of seed germination and uniformity of germination particularly under adverse conditions like temperature, moisture and salinity. Seeds are soaked in different solutions like various inorganic salts, sugars and polyethylene glycol (PEG) a chemically inert, high molecular weight compounds, etc. After seed priming increase in hydrolytic enzyme activity especially a-amylase, strong increase of super oxide dismutase, catalase activities and expression of certain proteins related to water stress and heat shock. During germination the primed seeds contain higher scavenging of ROS (Reactive Oxygen Species). This reviews reported the primed spices seeds or rhizomes contain abiotic stress tolerant capacities, increase the antioxidant enzyme activities like peroxidase, catalase, superoxide dismutase (SOD), polyphenol oxidase (PPO), lipoxygenase (LOX) and phenyl alanine ammonia lyase (PAL), break the seed dormancy, increase the germination percentage and early growth. This studies gives an overview about the seed priming in spice crops with relevant case studies.

scholarly journals Seed quality and crop performance of soybeans submitted to different forms of treatment and seed size

2019 ◽  
Vol 41 (1) ◽  
pp. 69-75
Author(s):  
Cristiane Moi Soares ◽  
Marcos Paulo Ludwig ◽  
Claudia Moi Soares Rother ◽  
Leticia Decarli
Keyword(s):  
Grain Yield ◽  
Seed Size ◽  
Seed Treatment ◽  
Seed Quality ◽  
Block Design ◽  
Treatment Method ◽  
Seed Coating ◽  
Randomized Block Design ◽  
And Performance ◽  
Moisture Content Measurement

Abstract: The objective of this work was to evaluate the effect of different grain sizes and treatments in the physiological quality of seeds and performance of soybean cultures. The object of analysis were seeds from the cultivars Monsoy 5730 IPRO and Monsoy 5947 IPRO, sized 5.5 and 6.5 mm. The industrial seed treatment was carried out in lot equipment, with the products cyantraniliprole, thiamethoxam, metalaxyl, thiabendazole, and a combination of fludioxonil + polymer + talc. The conventional treatment was performed with the products cyantraniliprole, thiamethoxam, metalaxyl, thiabendazole, and fludioxonil. Part of the seeds was kept untreated (control). The experiment used a randomized block design, with four replications. The parameters assessed include the moisture content measurement, seed coating, germination, first germination count, field emergence, survival rate, and grain yield (right after the seed treatment and after 45 days of storage). The industrial treatment method produced a better seed coating. As for seed size, it had no effect on quality or grain yield. Last, the treated seeds presented the best results for emergence in field, while the industrial treatment achieved the highest productivity.

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 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 Effect of selenium nanoparticles on the formation of the corn crop

2019 ◽  
pp. 24-27
Author(s):  
O. V. Chernikova ◽  
L. E. Ampleeva ◽  
Yu. A. Mazhaisky
Keyword(s):  
Seed Treatment ◽  
Selenium Nanoparticles ◽  
Soil Culture ◽  
Adverse Conditions ◽  
Germination Energy ◽  
Maize Seeds ◽  
Yield Formation ◽  
And Control ◽  
Positive Effect ◽  
Corn Grains

Peculiarities of yield formation of maize variety Obskiy 140 the cultivation of it with the use of selenium nanoparticles of an optimum concentration. The experiment was carried out in soil culture in 3-fold repetition. Agrochemical parameters of soil: рН 6,2; the КСl humus of 2.6%; P O 204 mg/kg and K O 219 mg/kg soil. Four variants of the experiment were developed: control 1 (dry seeds), 2 5 2 control 2 (soaking seeds in water), NP Se inlay (semi-dry etching) and NP Se soaking (30 minutes before sowing at the rate of 0,1 g/ha of NP selenium). In the experiments, NP Se containing 3,7 mg of nanopreparation Se in 1 liter of water was used. The positive effect of selenium nanoparticles on the growth processes of maize seeds: germination, germination energy, growth force is shown. Se NP seed treatment increases germination energy by 6,90 and 9,13%, laboratory germination by 4,67 and 8,34%, growth strength by 26,32 and 31,05%, respectively, control 2 (soaking in water) and control 1 (dry change). Under adverse conditions, the use of selenium nanoparticles increases the growth of plants in height. Positive effect on the accumulation of starch in corn grains inlay NP Se, and soaking in this drug increases the content of protein fractions. The greatest increase in the yield of dry corn phytomass provides soaking seeds with selenium nanoparticles, which is caused by an increase in the yield of green corn mass.

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%).

scholarly journals PRAIRIE GRASS ESTABLISHMENT AFFECTED BY SEED TREATMENT AND SOWING DATE

1985 ◽  
pp. 141-146
Author(s):  
R.E. Falloon
Keyword(s):  
Seedling Establishment ◽  
Seed Treatment ◽  
Sowing Date ◽  
Seed Treatments ◽  
Head Smut ◽  
Sowing Dates ◽  
Prairie Grass ◽  
Soil Temperatures ◽  
Successful Establishment ◽  
Grass Establishment

Effects of two different fungicide seed treatments, inoculation of seed with teliospores of the head smut fungus (Ustilago bullata Berk.), and five different autumn sowing dates, on establishment of prairie grass (Bromus willdenowii Kunth cv. 'Grasslands Matua,'), were examined in a field trial. Seedling establishment was increased by thiram seed treatment and decreased by inoculation of seed with U. bullata. Greater numbers of seedlings established from early sowings, when soil temperatures were higher, than from late sowings. Suitable seed treatments to increase the likelihood of successful establishment of prairie grass are discussed. Keywords: Bromus willdenowii, seedling establishment, seed treatments, thiram, Ustilago bullata, sowing dates, soil temperatures

scholarly journals Soybean seedling performance in diferente seed treatments

2021 ◽  
Vol 8 ◽  
pp. 1-11
Author(s):  
Luiz Leonardo Ferreira ◽  
Ivan Ricardo Carvalho ◽  
Francine Lautenchleger ◽  
Tamires Silva Martins ◽  
Paulo Ricardo Viana Carvalho ◽  
...  
Keyword(s):  
Single Dose ◽  
Best Practices ◽  
Seed Treatment ◽  
Integrated Management ◽  
Seed Treatments ◽  
Soybean Seedling ◽  
Fresh Matter ◽  
Soybean Seedlings ◽  
Soybean Cultivars ◽  
Residual Variances

The objective of this work was to evaluate the performance of soybean seedlings in different seed treatments. The experiment was conducted in the municipality of Mineiros, GO. The soil was classified as Quartzarenic Entisol. The experimental design was randomized blocks in factorial 5x4, corresponding to seed treatments (Water, Cruiser, Fipronil Alta, Fortenza and Standak Top) in four soybean cultivars (Bonus, Ultra, Extra and BKS7830), in four replications. Before planting, pre-planting desiccation was performed. The fertilization used was 450 kg ha-1 of fertilizer 05-25-15 applied in the furrow and in a single dose next to the sowing. During the conduction of the experiment the control of pests, diseases and weeds were carried out as necessary, respecting the best practices and integrated management. The data obtained were subjected to the assumptions of the statistical model, verifying the normality and homogeneity of the residual variances, as well as the additivity of the model. Uni and multivariate tools were applied. The analysis were performed at the interface Rbio and R. The interaction of soybean cultivars and types of seed treatment showed variations in all analysis evaluated in soybean seedlings. The best performances were verified among the cultivars BKS7830 that expressed the largest shoot fresh matter when submitted to Cruiser seed treatment, while the highest root length was expressed in the cultivar Ultra in the Fortenza seed treatment.

Leptosphaeria maculans. [Descriptions of Fungi and Bacteria].

1972 ◽  
Author(s):  
E. Punithalingam
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Brassica Oleracea ◽  
Geographical Distribution ◽  
Seed Treatment ◽  
Leptosphaeria Maculans ◽  
Severe Infection ◽  
Perfect State ◽  
Dry Rot ◽  
The Republic

Abstract A description is provided for Leptosphaeria maculans. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: On Brassica spp. ; Brassica oleracea, B. rapa and B. napobrassica and other Cruciferae. DISEASE: Variously known as canker, dry rot and black leg, mainly of Brassica oleracea, B. rapa and B. napobrassica. Several cruciferous genera are attacked. The first symptoms are seen on seedlings as pale lesions on the stem, cotyledons and first true leaves. These become greyish with the pycnidia developing in their centres. On older plants in the field lesions on the leaves and other above-ground parts often have purplish margins. The stem, root and bulb are attacked causing necrotic, girdling cankers and transverse splits; severe infection of stem or root leads to wilt or the plant toppling over. Pycnidia develop abundantly on all infected areas. The perfect state has been reported from Australia, Canada, England and the Republic of Ireland (44, 65; 45, 1568; 48, 51). GEOGRAPHICAL DISTRIBUTION: Widespread but mostly in temperate regions (CMI Map 73 ed. 3, 1969). Records not yet mapped are: Australia (NT), Brazil, Costa Rica, Salvador, USSR (Ukraine). TRANSMISSION: The seed is invaded, dormant mycelium forming beneath the seed coat (11: 489; 19: 58). A recent survey in Denmark (48, 2641) showed seed of B. oleracea var. capitata to be most frequently infected and a longevity of 3 yr 8 months reported. From New Zealand a longevity of 14 months was found (39: 200). Seed treatment for control of conidial infection has led to the recognition that the disease may also be introduced by air-borne ascospores from host debris (42: 62; 49, 1822; 50, 2027). A persistence of 3 yr in soil organic matter can occur (9: 218; 29: 448).

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