Iranian Journal of Seed Science and Technology

Eeffect of nitrogen application rate in the field on germination indices of three winter canola (Brassica napus L.) cultivars in standard germination test

Volume 1, Issue 1 , March 2012, Pages 1-19

Abstract

In order to evaluate the effect of different rates of nitrogen fertilizer on viability and germination indices of three winter canola (Brassica napus L) cultivars, an experiment was conducted based on randomized complete block design with factorial arrangement of treatment in four replications. The treatments ... Read More

Effect of seed size on some germination characteristics of three bread wheat (Triticum aestivumL.) cultivars

Volume 1, Issue 1 , March 2012, Pages 19-27

Abstract

Among the production factors, seed as the primary production factor plays an important role in the transfer and exploitation of genetic characteristics seeds aiming to increase qualitative and quantities of the yield. Among growth stages of plants, seed germination and emergence stages are the most critical ... Read More Among the production factors, seed as the primary production factor plays an important role in the transfer and exploitation of genetic characteristics seeds aiming to increase qualitative and quantities of the yield. Among growth stages of plants, seed germination and emergence stages are the most critical growth stages and play a pivotal role in plant establishment in fields. In order to investigate the impacts of seed diameter size on characteristics of germination in three wheat )Triticum aestivum L.( cultivars, this study was conducted in 2008 in a research station of seed and plant certification and registration research institute, Karaj, Iran. The experimental factors were five seed diameters ) 2-2.2, 2.2-2.5, 2.5-2.8, 2.8-3 ,andgt;3 mm ( and three wheat cultivars )Mahdavi, Pishtaz and Bahar(. In laboratory, seeds from different size class from cultivars were planted in a completely randomized design with 3 replicates. Germination percentage, germination speed , seedling-length, radicle-length, plumule-length, seedling dry weights, radicle dry weights and plumule dry weights were measured. Data analysis showed that seed size had a significant impact on speed of germinations, radicle dry weights, plumule dry weights and seedling dry weights. Results indicated that germination speed significantly decrease with increasing seed size. The other traits showed significant increases with increasing seed size. Cultivar had significant impact on germination characteristics but germination percentage and germination speed were similar between cultivars. Mahdavi cultivarandrsquo;s seedling length and dry weight was dependent on 1000 number of seed weights, especially influenced by 2.5-2.8, 2.8-3 and andgt;3 mm seed diameter, Seed size may be equivalent to the amount of nutrients saved in seeds. Therefore larger seeds may produce vigorous seedlings. Significant interaction was observed for radicle-length, plumule-length and seedling dry weight. This study suggested that the wheat genotypes did not have similar performance regarding to the variation in seed sizes .

Study on germination characters of mountain rye (Secale montanum) seed influenced by Aspergillus flavusin various storage conditions

Volume 1, Issue 1 , March 2012, Pages 28-37

Abstract

Effects of Aspergillus f lavus on seed germination traits, germination percentage, seed germination rate and abnormality during short storage periods, of Mountain rye )Secale montanum( were evaluated. Seeds of Mountain rye contaminated with 106/ ml spore suspension of this Aspergillus flavus. The control ... Read More

Hydro and osmopriming effects on some seed germination and seedling vigour characteristics of three wheat (Triticum aestivumL.) lines

Volume 1, Issue 1 , March 2012, Pages 38-45

Abstract

To study effects of priming of wheat seeds, three lines was chosen and their germination charachteristics were tested in year 2010 in the laboratory of Qaemshahr unit of Azad Islamic university in the format of factorial based on randomized block design in four replicates . Treatments included three ... Read More

Iranian Journal of Seed Science and Technology

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Volume & Issue: Volume 1, Issue 1, March 2012, Pages 1-105

Eeffect of nitrogen application rate in the field on germination indices of three winter canola (Brassica napus L.) cultivars in standard germination test

Abstract

Effect of seed size on some germination characteristics of three bread wheat (Triticum aestivumL.) cultivars

Abstract

Study on germination characters of mountain rye (Secale montanum) seed influenced by Aspergillus flavusin various storage conditions

Abstract

Hydro and osmopriming effects on some seed germination and seedling vigour characteristics of three wheat (Triticum aestivumL.) lines

Abstract