EFFECT OF RICE RESIDUES ON SEED GERMINATION AND SEEDLINGS GROWTH OF WHEAT (Triticum aestivum cv. IPA) AND BARLEY (Hordeum vulgare cv.Local)

2006 ◽  
Vol 19 (1) ◽  
pp. 186-202
Keyword(s):  
Triticum Aestivum ◽  
Hordeum Vulgare ◽  
Seed Germination ◽  
Rice Residues

RENDEMENT EN GRAINS DE PARCELLES DE CEREALES DE PRINTEMPS ORIGINANT DE SEMENCES CONTAMINEES PAR DES Fusarium spp

1983 ◽  
Vol 63 (3) ◽  
pp. 617-621 ◽  
Author(s):  
LUC COUTURE
Keyword(s):  
Triticum Aestivum ◽  
Hordeum Vulgare ◽  
Seed Germination ◽  
Avena Sativa ◽  
Wheat Cultivar ◽  
The Other ◽  
Fusarium Spp ◽  
Low Level ◽  
High Level ◽  
Yield Decrease

Seed lots from different cultivars of oats (Avena sativa), barley (Hordeum vulgare) and wheat (Triticum aestivum) were compared in yield tests at two sites in Quebec. For each cultivar, two seed lots were used, one with a low level of seed-borne Fusarium (average 4%) and the other with a high level (average 47%). Yield increases or decreases in the presence of Fusarium were observed according to cultivars. Positive or negative trend in yield was similar at both sites but with different magnitudes. Barley was the most affected cereal with three out of four cultivars undergoing yield decrease. One wheat cultivar out of three sustained yield decrease and none of the three oats suffered damage by Fusarium. Seed germination appears to be a factor to consider in selecting lots for such comparisons.Key words: Yield, Avena sativa, Hordeum vulgare, Triticum aestivum, Fisarium, cultivars

scholarly journals Effectiveness of carbon dioxide in compressed gas or solid formulation for the control of insects and mites in stored wheat and barley

2005 ◽  
Vol 74 (2) ◽  
pp. 101-111 ◽  
Author(s):  
N.D.G. White ◽  
D.S. Jayas
Keyword(s):  
Carbon Dioxide ◽  
Triticum Aestivum ◽  
Hordeum Vulgare ◽  
Seed Germination ◽  
Moisture Content ◽  
Tribolium Castaneum ◽  
Cryptolestes Ferrugineus ◽  
Stored Grain ◽  
Compressed Gas ◽  
Grain Bulks

Carbon dioxide can be used as an effective stored-grain fumigant in relatively air-tight bins. Carbon dioxide was added to wheat (Triticum aestivum) as a compressed gas and to barley (Hordeum vulgare) as a solid (dry ice) in 322-kg grain bulks. Wheat was stored at temperature decreasing from 18 to 10°C over a 12-wk period. Bins were left open, sealed without C02 added, or with C02 supplemented at 25,34, and 46% levels. Barley was stored at temperature decreasing from 25 to 20°C over an 8-wk period. Bins were left open, sealed without C02 added, or with C02 treatments of 23, 29, and 34%. The wheat and barley moisture content were 14.5-16.3% and 14.5-16.1%, respectively. Oxygen levels in the wheat reflected air displacement with C02, but lower O2 levels in the barley reflected a combination of air displacement by C02 and consumption of O2 by respiring grain and microorganisms at the warmer temperatures. The insects Cryptolestes ferrugineus and Tribolium castaneum were controlled in 2 wk at 34% C02 and 15% O2 at temperature decreasing from 18 to 10°C, or 29% C02 and 3% O2 at temperature decreasing from 25 to 20°C. The mites Tarsonemus granarius, Lepidoglyphus destructor, and Aeroglyphus robustus were killed in less than 2 wk at these C02 levels. Seed germination and microflora were unaffected by all gaseous environments.

Ultrastructure of Plant Leaf Tissue Infected with Mite-Borne Viral-Like Pathogens

1970 ◽  
Vol 28 ◽  
pp. 178-179 ◽  
Author(s):  
O. E. Bradfute ◽  
R. E. Whitmoyer ◽  
L. R. Nault
Keyword(s):  
Triticum Aestivum ◽  
Zea Mays ◽  
Electron Microscope ◽  
Hordeum Vulgare ◽  
Microscope Study ◽  
Electron Microscope Study ◽  
Leaf Tissue ◽  
Leaf Ultrastructure ◽  
Double Membrane ◽  
Aceria Tulipae

A pathogen transmitted by the eriophyid mite, Aceria tulipae, infects a number of Gramineae producing symptoms similar to wheat spot mosaic virus (1). An electron microscope study of leaf ultrastructure from systemically infected Zea mays, Hordeum vulgare, and Triticum aestivum showed the presence of ovoid, double membrane bodies (0.1 - 0.2 microns) in the cytoplasm of parenchyma, phloem and epidermis cells (Fig. 1 ).

scholarly journals Green Accelerated Synthesis, Antimicrobial Activity and Seed Germination Test of Quaternary Ammonium Salts of 1,2-bis(4-pyridyl)ethane

Molecules ◽  
2019 ◽  
Vol 24 (13) ◽  
pp. 2424 ◽  
Author(s):  
Tăbăcaru ◽  
Botezatu ◽  
Horincar ◽  
Furdui ◽  
Dinică
Keyword(s):  
Escherichia Coli ◽  
Triticum Aestivum ◽  
Seed Germination ◽  
Quaternary Ammonium ◽  
Pathogenic Bacteria ◽  
Classical Method ◽  
Triticum Aestivum L ◽  
Quaternary Ammonium Salts ◽  
Ammonium Salts ◽  
Radicle Growth

A family of fifteen quaternary ammonium salts (QAs), bearing the 1,2-bis(4-pyridyl)ethane core, were obtained using for the first time two different green methods, such as microwave (MW) and ultrasounds (US) irradiation, with very good yields and in much shorter times compared to the classical method, and an assay on their antimicrobial action against Escherichia coli (E. coli) was carried out. While 12 to 24 hours were required for complete alkylation of 1,2-bis(4-pyridyl)ethane by reactive halogenated derivatives in anhydrous solvent under reflux conditions, MW and US irradiation reduced the reaction time and the desired products were achieved in a few min. One of the aims of this study was to evaluate the antibacterial potential of the synthesized QAs against pathogenic bacteria, along with their impact on germination activity of wheat seeds (Triticum aestivum L.). The antibacterial activity of the QAs against Escherichia coli was explored by determining the minimum inhibitory concentration (MIC). The MIC values varied from 0.312 to 2.5 mg/mL, highlighting the lowest values attained for the derivatives containing methoxy, chlorine and benzofurane functional groups. The viability of aerobic bacteria was determined with the Tetrazolium/Formazan Test, a method that was found to be the best alternative approach with respect to the difuzimetric method. Seeds of Triticum aestivum L. were used for the evaluation of the germination indicators, such as seed germination (SG), the relative seed germination (RSG), the relative radicle growth (RRG), and the seed germination index (GI). The toxicity studies of QAs 1, 4 and 7, at two different concentrations, showed no inhibitory effect on seed germination.

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
Sign in / Sign up

Export Citation Format

Share Document