Seed treatment for control of net blotch of barley

Effects of systemic fungicides on progress of net blotch, caused by Pyrenophora teres, were examined in field plots. Disease intensities and apparent infection rates (r values) in barley grown from carbathiin-treated seeds were similar to those of the checks 29–30 days and later. Etaconazole used as a seed treatment reduced disease intensities for about 29–42 days, but r values later accelerated and exceeded those of the checks. Propiconazole applied to the foliage at early tillering reduced r for about 12 days, but disease subsequently progressed more rapidly than in the checks. Applications of propiconazole at spike emergence reduced r for 13–15 days. According to the observed r values and disease intensities, the following temporal relationships of fungicide applications and disease progress were recognized: (1) period of reduced epidemic rates; (2) period of accelerated epidemic rates; (3) period of epidemiologic impact of the fungicide (the summation of 1 and 2). Seed treatments and tillering sprays failed to increase barley yields significantly. However, when propiconazole was applied at spike emergence, or at both tillering and spike emergence, 1000-kernel weights increased by 17.3% and 17.8%, respectively, at one location, and grain yields by 14.2% and 19.1% at a second location.Key words: Etaconazole, propiconazole, carbathiin, epidemiology, Pyrenophora teres, Drechslera teres

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The influence of selected sulfonylurea herbicides including chlorsulfuron mixtures and seed treatment with Baytan Universal on the incidence of net blotch (Drechslera teres) of barley (Hordeum sativum)

The Journal of Agricultural Science ◽

10.1017/s0021859601001794 ◽

2002 ◽

Vol 138 (2) ◽

pp. 177-183

Author(s):

R. D. ALADESANWA

Keyword(s):

Seed Treatment ◽

Dry Weight ◽

Disease Prevalence ◽

Sulfonylurea Herbicides ◽

Net Blotch ◽

Evaluation Period ◽

Significant Control ◽

Drechslera Teres ◽

Naturally Occurring ◽

Herbicide Treatments

A 2-year split-plot field experiment investigated the influence of selected sulfonylurea herbicides including chlorsulfuron mixtures and presowing seed treatment using triadimenol/imazalil/fuberidazole (Baytan Universal 19·5 WP) on the incidence of naturally occurring net blotch (Drechslera teres (Sacc.)) Shoem of barley. All the herbicides examined provided effective and season-long weed control at a similar level that no significant differences in weed density and weed dry weight were found amongst herbicide treatments. Significant (P<0·05) increases in disease prevalence over the weedy check were recorded in herbicide treated plots throughout the evaluation period, but disease severity remained unaffected. Presowing seed treatment with Baytan Universal provided significant control of net blotch of barley compared with the control throughout the evaluation period. No phytotoxicity was observed in any of the treatments.

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Disease progression and yield loss in barley associated with net blotch, as influenced by fungicide seed treatment

Canadian Journal of Plant Pathology ◽

10.1080/07060668509501520 ◽

1985 ◽

Vol 7 (1) ◽

pp. 83-90 ◽

Cited By ~ 20

Author(s):

R.A. Martin

Keyword(s):

Disease Progression ◽

Seed Treatment ◽

Yield Loss ◽

Net Blotch

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Comparative Effectiveness Of Seed Treating And Foliar Insecticides Against Sucking Pests Of Cotton And Impact On Their Natural Enemies

Bangladesh Journal of Agricultural Research ◽

10.3329/bjar.v38i1.15190 ◽

2013 ◽

Vol 38 (1) ◽

pp. 61-70 ◽

Cited By ~ 1

Author(s):

SMA Hossain ◽

MA Baque ◽

MR Amin

Keyword(s):

Natural Enemies ◽

Untreated Control ◽

Seed Treatment ◽

Foliar Spray ◽

Cost Ratio ◽

Research Station ◽

Benefit Cost Ratio ◽

Benefit Cost ◽

Thrips Population ◽

Cotton Cultivar

The Imidacloprid insecticide, Gaucho 70 WS at 1.5, 2.5, 3.5, 4.5 and 5.5 g/kg seed was used as seed treatment and monocrotophos 40 WSC at 1120 ml/ha was applied as foliar spray on CB9 cotton cultivar to suppress aphid, whitefly and thrips, and impact on their natural enemies during 2008-2011 at the Regional Cotton Research Station, Dinajpur, Bangladesh. The activity of natural enemies, such as ladybird beetle, lacewing, syrphid, and spider population on the sucking pests attacking cotton cultivar CB9 and yield of cotton were recorded. Imidacloprid significantly reduced aphid, whitefly, and thrips population on cotton crops compared to untreated control or foliar spray of monocrotophos 40 WSC at 1120 ml/ha. Ladybird beetles, lacewings, syrphids, and spiders were abundant in the field but their population decreased in the treated plots compared to untreated control. The CB9 cotton cultivar produced significantly higher yield (1.73 t/ha) with a benefit cost ratio 12.47 when seeds were treated with Imidacloprid at 5.5 g/kg fuzzy seed. This study indicated that Imidacloprid (Gaucho 70 WS) used as a seed treatment may be suggested to the cotton growers for controlling sucking pests. Bangladesh J. Agril. Res. 38(1): 61-70, March 2013 DOI: http://dx.doi.org/10.3329/bjar.v38i1.15190

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Seed treatment using plant growth promoting rhizobacteria and its effect on growth and yield of tomato (Lycopersicum esculentum Mill.) plants

Plant Science Archives ◽

10.33680/plsa.2019.017 ◽

2019 ◽

Vol 2 (2) ◽

Keyword(s):

Plant Growth ◽

Seed Treatment ◽

Plant Growth Promoting Rhizobacteria ◽

Growth And Yield ◽

Lycopersicum Esculentum ◽

Plant Growth Promoting ◽

Growth Promoting ◽

Effect On Growth

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Improvement of separate elements of the techno-logy of cultivation of white cabbage in the conditions of the of the central region of the non-chernozem zone

сборник статей всероссийской научной конференции с международным участием "Растениеводство и луговодство" ◽

10.26897/978-5-9675-1762-4-2020-145 ◽

2020 ◽

Author(s):

A.V. Konstantinovich ◽

◽

A.S. Kuracheva ◽

E.D. Binkevich

Keyword(s):

Seed Treatment ◽

Unit Area ◽

Growing Season ◽

Agricultural Products ◽

Stress Factors ◽

High Quality ◽

Temperature And Precipitation ◽

White Cabbage ◽

Sowing Seed

In conditions of climate change, when temperature and precipitation fluctuations occur more and more frequently during the growing season, it is necessary to obtain high quality seedlings with "immunity" to various stress factors, including high weediness, the damage from which is associated with a decrease in yield (by 25 -35%) and with a deterioration in the quality of agricultural products. Due to the imbalance in production technology, seedlings are often weakened, overgrown, with a low yield per unit area and survival rate in the field. One of the solutions to this problem is the use of PP for pre-sowing seed treatment to increase the competitiveness of seedlings in the field.

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