نتایج جستجو برای: using their own pollen
تعداد نتایج: 5061434 فیلتر نتایج به سال:
it is not possible to understand developments of a country’s culture and civilization without knowing his believes and myths. whether it is north or south, east or west, planes or mountains, sahara or deserts, here in iran every corner includes valuable and precious treasures which are known all over the world, and cultural – historical objects which are found here adorn all well known museums...
In 1873, Charles Harrison Blackley recognised pollen as the cause of hay fever and ‘‘hay asthma’’ [1]. For the first time, he collected pollen grains with a kite that had a sticky tail and then he counted them. Being affected by seasonal asthma himself, he also performed the first skin prick test on his own arm. Since then, aerobiology (from Greek á r, aēr, ‘‘air’’; bioz, bios, ‘‘life’’; and -l...
Pollen grains of 7 species of the genus Rubus L. were investigated using light microscopy (LM) and scanning electron microscopy (SEM). 14 different pollen characters were described, illustrated and compared in the present st-udy. All pollen grains were monad, tricolporate, radially symmetrical, isopolar, and medium in size. As for pollen sh-ape, 3 forms were recognized in the same specimens: pr...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید