Effect of the Treatment of Wheat Seeds with Vegetable Oils on Germination and Emergence

1995 ◽  
Vol 31 (3) ◽  
pp. 291-298
Author(s):  
Joshua D. Klein ◽  
Yonit Hebbe
Keyword(s):  
Triticum Aestivum ◽  
Seedling Growth ◽  
Vegetable Oils ◽  
Degree Of Saturation ◽  
Physical Factors ◽  
Hydrophobic Coating ◽  
Acid Ratio ◽  
Delayed Emergence ◽  
Seed Respiration ◽  
Wheat Seeds

SummarySeeds of wheat (Triticum aestivum L.) were coated with a range of vegetable oils before sowing, in an effort to provide a hydrophobic coating that would only dissolve or wash away in the presence of sufficient water to maintain continued seedling growth. Germination of oil-treated seeds was reduced by 20–50% and time to 50% emergence was increased by two to five days. Treating pesticide-coated seeds with vegetable oil further decreased germination and extended time to emergence. Oil treatment did not decrease water uptake or affect seed respiration. Degree of saturation and linoleic acid:oleic acid ratio were not correlated with the effects of the various oils. The decreased germination and delayed emergence associated with the oil treatment were probably due to physiological rather than physical factors.

BIOMAGNETIC RESPONSES IN KHARKOV 22 M.C. WINTER WHEAT

1967 ◽  
Vol 47 (4) ◽  
pp. 389-393 ◽  
Author(s):  
U. J. Pittman
Keyword(s):  
Growth Rate ◽  
Triticum Aestivum ◽  
Magnetic Fields ◽  
Winter Wheat ◽  
Seedling Growth ◽  
Triticum Aestivum L ◽  
Magnetic Intensity ◽  
Stable Temperature ◽  
Seedling Growth Rate ◽  
Wheat Seeds

Pregermination exposure of Kharkov 22 M.C. winter wheat seeds (Triticum aestivum L.) to introduced magnetic fields resulted in a stable, temperature-independent enhancement of seedling growth rate. The level of magnetic intensity required to give maximum response appears to be between 0.5 and 100 oersteds when applied for 240 hours.

scholarly journals Effect of tannery effluent on germination, seedling growth and pigment content of Triticum aestivum L. var. PBW-373

2013 ◽  
Vol 14 (1&2) ◽  
pp. 93-96
Author(s):  
Richa Kohli ◽  
Piyush Malaviya
Keyword(s):  
Triticum Aestivum ◽  
Seedling Growth ◽  
Growth Parameters ◽  
Triticum Aestivum L ◽  
Tannery Effluent ◽  
Chlorophyll B ◽  
Pigment Contents ◽  
Percent Germination ◽  
Germination Parameters ◽  
Wheat Seeds

The present study has been focussed on the effect of untreated tannery effluent on germination, seedling growth and pigment contents of wheat (Triticum aestivum L. var. PBW-373).Germination studies were conducted with wheat seeds having various concentrations of (4.5, 9, 13.5, and 18%) tannery effluent and five treatments (Eo, E4.5, E9, E13.5 and E18).The +ve germination parameters i.e. cumulative percent germination, germination index etc. found to be maximum in E4.5. The –ve germination parameters like delay index, percent inhibition showed minimum values for E4.5. Growth parameters also decreased with increase in effluent concentration. The pigment contents i.e. chlorophyll-a and chlorophyll-b also showed good results at E4.5.

scholarly journals Cadmium toxicity on seed germination and seedling growth of wheat Triticum aestivum

2015 ◽  
Vol 37 (4) ◽  
pp. 499 ◽  
Author(s):  
Maria de Fátima Souza Guilherme ◽  
Habyhabanne Maia Oliveira ◽  
Edevaldo Da Silva
Keyword(s):  
Triticum Aestivum ◽  
Seed Germination ◽  
Seedling Growth ◽  
Cadmium Toxicity

scholarly journals Influence of boron on seed germination and seedling growth of wheat (Triticum aestivum L.)

2014 ◽  
Vol 8 (2) ◽  
pp. 133-139 ◽  
Author(s):  
Ashagre Habtamu ◽  
A. Hamza Ibrahim ◽  
Fita Urgecha ◽  
Nedesa Worku
Keyword(s):  
Triticum Aestivum ◽  
Seed Germination ◽  
Seedling Growth ◽  
Triticum Aestivum L

Making control decisions for Sitodiplosis mosellana (Diptera: Cecidomyiidae) in wheat (Gramineae) using sticky traps

2002 ◽  
Vol 134 (6) ◽  
pp. 851-854 ◽  
Author(s):  
R.J. Lamb ◽  
I.L. Wise ◽  
J.E. Gavloski ◽  
L.A. Kaminski ◽  
O.O. Olfert
Keyword(s):  
Triticum Aestivum ◽  
Durum Wheat ◽  
Common Wheat ◽  
Triticum Durum ◽  
Crop Canopy ◽  
Economic Threshold ◽  
Sticky Traps ◽  
Sitodiplosis Mosellana ◽  
Wheat Midge ◽  
Wheat Seeds

Wheat midge larvae, Sitodiplosis mosellana (Géhin), attack developing seeds and cause losses of common wheat, Triticum aestivum L., and durum wheat, Triticum durum Desf. (Olfert et al. 1985; Lamb et al. 1999). Insecticide applied as the crop flowers can reduce damage (Elliott 1988). The economic threshold varies from 4 to 7% of common wheat seeds infested by larvae, depending upon grade of wheat and cost of insecticidal control (Lamb et al. 2000). To make control decisions, farmers count adults at sunset during the period from heading to flowering (Elliott and Mann 1996), and apply insecticide if densities reach a nominal threshold of one adult per four or five wheat spikes (Anonymous 1993). Decisions must be made although no relationship has been detected between the number of adults in the crop and subsequent densities of damaging larvae (Oakley et al. 1998), and farmers have little confidence in their counts. The pest is difficult to sample because adults are small, short-lived, crepuscular, and are usually hidden in the crop canopy (Pivnick and Labbé 1993); eggs are microscopic (Mukerji et al. 1988); larvae feed inside florets (Lamb et al. 2000); and mature larvae and pupae are in the soil (Lamb et al. 1999). Sticky traps have been used to sample midges in sorghum (Merchant and Teetes 1992) and in wheat (Oakley et al. 1998), with mixed results. Our objective was to determine if catches of wheat midge adults on sticky traps can effectively guide farmers in making control decisions.

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