壳聚糖催种提高了盐胁迫下黄豆的萌发和生长性能

Q3 Agricultural and Biological Sciences
B. Mahdavi, A. Rahimi
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引用次数: 66

摘要

背景:壳聚糖是由几丁质衍生而来的多糖生物聚合物。它不仅能刺激作物生长,提高作物产量,还能减轻非生物胁迫对植物生长的有害影响。本试验旨在研究壳聚糖对盐胁迫下黄豆萌发和生长的影响。这项研究是在实验室和温室中进行的。材料与方法:第一项实验采用0、0.01%、0.05%、0.1%、0.2%和0.5%的壳聚糖溶液浸泡种子3 h,监测阿荷万种子的萌发情况。第二项实验采用0和0.2%的壳聚糖溶液浸泡种子,在不同盐度(0、4、8和12 dS/m)的花盆中播种。结果:与对照相比,不同浓度的壳聚糖处理均提高了种子的发芽率、发芽率、幼苗活力指数、下胚轴和胚根的长度和干重,但以0.2%浓度的壳聚糖处理效果最好。盐胁迫显著降低了芽苗率、芽长、根长、茎根干重和相对含水量,壳聚糖调节了盐毒性。结论:壳聚糖具有促进阿胶萌发和生长的作用。壳聚糖浸种可以缓解盐胁迫对植物生长的抑制作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Seed priming with chitosan improves the germination and growth performance of ajowan {Carum copticum) under salt stress
Background: Chitosan is a polysaccharide biopolymer derived from chitin. It not only stimulates growth and increases the crop yields but also alleviates the harmful effect of abiotic stress on plant growth. The objective of this study was to investigate the effects of chitosan on germination and growth of ajowan {Carum copticum) under salt stress. This study was conducted in a laboratory and greenhouse. Material and Methods: In the first experiment seed germination of ajowan monitored under seed pre-treated by soaking in chitosan solutions of 0, 0.01%, 0.05%, 0.1%, 0.2% and 0.5% for 3 h. In second experiment, seeds soaked in chitosan solutions (0 and 0.2%) and sown in pots at different salinity levels (0, 4, 8 and 12 dS/m). Results: Results indicated that all of chitosan concentrations increased germination percentage, germination rate, seedling vigour index, length and dry weight of hypocotyl and radicle compared to control although, 0.2% chitosan concentration was more effective than other treatments. Salinity caused a significant reduction in germination percentage, shoot length, root length, shoot and root dry weight and relative water content, while chitosan adjusted the salt toxicity. Conclusions: It is concluded that chitosan would be able to stimulate germination and growth of ajowan. It is also resulted that soaking ajowan seeds with chitosan, may alleviate the inhibitory effect of salt stress on the plant growth.
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来源期刊
Eurasian Journal of Biosciences
Eurasian Journal of Biosciences Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)
CiteScore
1.20
自引率
0.00%
发文量
0
期刊介绍: EurAsian Journal of BioSciences (Abbrev. Eurasia J Biosci or EJOBIOS) is an international, refereed electronic journal. It publishes the results of original research in the field of biological sciences restricted tomorphology, physiology, genetics, taxonomy, ecology and biogeography of both prokaryotic and eucaryotic organisms. The journal encourages submission of manuscripts dealing with plant biology, animal biology, plant physiology, microbiology, hydrobiology, ecology and environmental science, ethnobiology, biodiversity and conservation biology. EurAsian Journal of BioSciences publishes original articles in the following areas: -Agriculture, Fisheries & Food -Anatomy & Morphology -Behavioural Sciences -Biology, Biochemistry and Biotechnology -Biophysics -Biology Education -Cellular Biology and Anatomical Sciences -Ecology, Evolution & Environment -Entomology -Forestry -General Biology -Genetics & Heredity -Life Sciences - Other topics -Microbiology and Immunology -Molecular Biology -Mycology -Palaeontology -Parasitology -Pharmacology & Pharmacy -Physiology and Related Sciences -Plant Sciences -Toxicology -Veterinary Sciences -Virology -Zoology
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