مقالههای 1Ali Akbar Ghasemi
توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقالههای نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده میشوند.
اطلاعات انتشار: World Applied Sciences Journal، بيست و دوم،شماره۷، ۲۰۱۳، سال ۰
تعداد صفحات: ۸
As the population is increasing and we face lack of land and water resources, usage of the plants which are resistant to salinity and are able to grew in difficult environment condition while having the highest efficiency is undeniable. So that we should be aware of plants germination needs. Medicinal plants are one of the most useful resources that are being used in different industries. Some of the most important factors in cultivating medicinal plants are determining the resistance to salinity and the best temperature for germination. So, in this research the effects of salinity stress (made by sodium chloride and calcium chloride) and temperature interaction on germination characteristics of hyssopus officinalis have been studied. The experiment is conduct on factorial basis and in a completely randomized design. In this experiment, different osmotic potentials (0, –3, –6 and –9 bar) and also different temperatures (20, 25, 30 and 35°C) are used in lab conditions and it hasrepeated three times. In this research, the percentage and rate of germination, the length of radicle and plumule,length ratio of radicle and plumule and vigor index characteristics has been measured. The results showed asignificant effect of salt levels, osmotic potential and temperature on the above characteristics. The meancomparison for percentage and speed characteristics showed that calcium chloride with 63% and 7.11respectively had a significant difference with sodium chloride with 50% and 1.7 and they have been categorizedin different groups. Generally while the osmotic potential increases and temperature goes up to 30 centigradedegree all the characteristics in sodium chloride and calcium chloride had a remarkable reduction.Also increment of high temperatures had more harmful effects in NaCl than CaCl2.
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