نتایج جستجو برای: acanthophyllum squarrosum
تعداد نتایج: 108 فیلتر نتایج به سال:
Reaumuria soongorica and sand rice (Agriophyllum squarrosum) belong to the clade of Caryophyllales and are widely distributed in the desert regions of north China. Both plants have evolved many specific traits and adaptation strategies to cope with recurring environmental threats. However, the genetic basis that underpins their unique traits and adaptation remains unknown. In this study, the tr...
این پژوهش به بررسی موقعیت تاکسونومیک و پراکنش سه بخش macrostegia, acanthophyllum & pleiosperma از جنس achanthophyllum c. a. mey در ایران می پردازد. جنس achonthophyllum متعلق به خانواده caryophyllaceae و زیر خانواده silenoideae می باشد. این جنس دارای حدود 61 گونه در سراسر جهان و 32 گونه در ایران است. تاکسون های متعلق به این جنس در مناطق خشک، کوه ها، شیب کوه ها و همچنین در مناطق معتدله پراکنش دار...
Seasonal differences have been observed in the ability of desiccated mosses to dissipate absorbed light energy harmlessly into heat. During the dry summer season desiccation-tolerant mosses were more protected against photo-oxidative damage in the dry state than during the more humid winter season. Investigation of the differences revealed that phototolerance could be acquired or lost even unde...
cancer is a major cause of death worldwide and causes serious problems in human life. it is developed by uncontrolled growth of a cell or a group of cells. there are many difficulties in treatment of cancer and many researchers are involved in investigating for effective drugs to treat the disease. caryophyllaceae is a large family of about 86 genera and 2200 herbaceous or subshrub species. the...
چکیده ندارد.
We compared the phenotypic plasticity of two early successional forbs of nutrient-poor mobile dunes (Agriophyllum squarrosum and Corispermum macrocarpum) and two later successional forbs (weeds) of stabilized, higher nutrient dunes and cropland (Chenopodium acuminatum and Salsola collina) to variations in environmental factors. A controlled (including soil nutrients, water, and population densi...
Present study was undertaken as an attempt to study the effect of pollutants on biological responses of Sphagnum growing at Kainchi, Kumaon hills (Uttranchal). Sphagnum plants of almost identical size, collected from the marked sites of Kainchi in different seasons viz., monsoon, winter, summer and again in monsoon, were analysed for chlorophyll, protein, shoot length and nitrate reductase and ...
دستیابی به برخی از ویژگیهای کمی و کیفی پوشش گیاهی از جمله تنوع گیاهی برای مرتعداران جهت اعمال مدیریت صحیح، ضروری میباشد. به منظور مطالعه شاخصهای تنوع گیاهی، مراتع حوزه آبخیز خانقاه سرخ با مساحتی بالغ بر 2000 هکتار در محدوده ارتفاعی 1400 تا 2400 متر از سطح دریا در استان آذربایجان غربی انتخاب شد. 3 تیپ گیاهی با نامهای Astragalus microcephalus - Acanthophyllum microcephalum Pteropyrum aucheri...
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