Iranian Journal of Seed Science and Technology

Effect of planting date on germination indices and biochemical activity of seed in different genotypes of quinoa (Chenopodium quinoa Willd)

Hassan Nasiri Avanaki; Seyed MohammadReza Ehteshami; Mahmoud Bagheri

Volume 13, Issue 2 , June 2024, , Pages 75-96

https://doi.org/10.22092/ijsst.2023.363046.1496

Abstract

In order to investigate the effect of planting date on germination characteristics and biochemical activity of seed in different quinoa genotypes, an experiment was conducted in the Research Laboratory of Seed Physiology and Biotechnology of the Faculty of Agricultural Sciences at University of Guilan ... Read More

Investigation of prechilling and scarification (chemical and physical) treatments in break of wild mustard (Sinapis arvensis) seed dormancy

Volume 2, Issue 2 , December 2013, , Pages 147-159

Abstract

To find methods of breaking seed dormancy,an experiment was arranged in a factorial experiment based on a completely randomized design with three replications in laboratory ofGorgan University of Agricultural Sciences and Natural Resourcesduring 2010. The seeds were divided into three portions. Two portions ... Read More To find methods of breaking seed dormancy,an experiment was arranged in a factorial experiment based on a completely randomized design with three replications in laboratory ofGorgan University of Agricultural Sciences and Natural Resourcesduring 2010. The seeds were divided into three portions. Two portions of seeds within a period of two and four weeks in temperature of 4οC was remained uniformity under moist conditions (cold stratification) and one another part of seeds located in laboratory conditions and ordinary temperature. Then nine mechanical and chemical scarification treatments (using of gibberellic acid with concentration of 500, 1500 and 2000 ppm; 1, 2 and 4 minutes soaking in sulfuric acid; 1, 2 and 3 minutes of using of Emery)were applied on these seed portions and the germination percentage, rate and uniformity were investigated. Also, in order to determine the effect of treatments on permeability of seed coat to water, water adsorption trend of wild mustard (Sinapis arvensis) seed was studied after using of treatments. Results of experiment indicated that prechilling, scarification treatments and their interaction effects have significant effect on germination components. According to results, effective treatments following by 24 hours of soaking in gibberllic acid(density=2000, 1500 ppm) andmechanical scarification for 2 minutes treatment, in non-prechilling and 2 weeks prechilling. No use of prechilling treatment, germination percentage in 24 hours of soaking in gibberllic acid(density=2000, 1500 ppm) andmechanical scarification for 2 minutes treatment observed 58.5, 56 and 47.5%, respectively. Despite two weeks of moist chilling, germination percentage of these treatments with a slight increase was about 77.25, 76.5 and 53.25%, respectively, meanwhile under four weeks of moist chilling, germination percentage in above treatments decreased about 77, 65 and 66%. In the end it became clear that the best treatment for reduction of wild mustard seed dormancy and improve its germination was 24 hours of soaking in gibberllic acid(density=1500 ppm) andemery for 2 minutes treatment

Effect of salinity stress and genetical parameterers estimation of some burley (Hordeum Vulgare L.) Cultivars lines in seed germination and seedling primary growth stage

Volume 1, Issue 2 , December 2012, , Pages 117-127

Abstract

Increased salt tolerance is essential need for sustainable barley production in areas with risk of salinisation. This requires new genetic sources of salt tolerance, and more efficient techniques for identifying salt-tolerant germplasms. This study, conduct to access salt tolerance in primary growth ... Read More

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Volume 1 (2012)

Author = Seyed MohammadReza Ehteshami

Effect of planting date on germination indices and biochemical activity of seed in different genotypes of quinoa (Chenopodium quinoa Willd)

Abstract

Investigation of prechilling and scarification (chemical and physical) treatments in break of wild mustard (Sinapis arvensis) seed dormancy

Abstract

Effect of salinity stress and genetical parameterers estimation of some burley (Hordeum Vulgare L.) Cultivars lines in seed germination and seedling primary growth stage

Abstract