extended abstract   introduction the most important indicator of climate in a region is vegetation community. climate can be different over large areas, because of changes in vegetation community. vegetation influences weather and climate in its surrounding areas mostly by way of evapotranspiration and albedo so they play a role in the earth’s energy balance. these effects on the earth’s energy...

t h e m s e l v e s i n t h e p e r s p e c t i v e o f r e s e a r c h o n t h e o r i g i n s o f s p e e c h , a n d d o n o t a s k t h e q u e s t i o n w h e r e t h e s o u n d s y s t e m t h e y a s s u m e c o m e s f r o m . T o i l l u s t r a t e t h i s p r o c e s s , I w i l l r e d o s o m e s i m u l a t i o n s s i m i l a r t o t h o s e p r e s e n t e d e a r l i e r , b u...

this study was conducted to evaluate the responses of two greenhouse tomato cultivars to nutrient solutions' electrical conductivity (ec). two cluster type greenhouse tomato cultivars (razan and ergon) were grown in perlite in a glasshouse hydroponic system. the grown plants were daily fed with either constant ec nutrient solutions (ecs 2, 3 ds m-1) or nutrient solutions of alternatively c...

to study the effect of harvesting time on soybean seed germination and vigor a factorial experiment with three replications, including of five harvesting time and three soybean cultivars was carried out in the field and glasshouse. the effect of harvesting time on seed germination percentage (in the field, cold test and paper test), seed germination rate, shoot and root weights, 1000-seed weigh...

A C f E R I A L L U C I F E R A S E : B I O L U M I N E S C E N C E E M I S S I O N U S I N G L U M A Z I N E S A S S U B S T R A T E S P e t e r M a c h e r o u x a n d S a n d r o G h i s l a U n i v e r s i t y o f K o n s t a n z , F a c u l t y o f B i o l o g y , P . O . B o x 5 5 6 0 , D 7 8 4 3 4 K o n s t a n z , G e n n a n y J . W o o d l a n d H a s t i n g s H a r v a r d U n i v e...

common bacterial blight (cbb) of bean caused by xanthomonas axonopodis pv. phaseoli is a seriously important disease that adversely affects the quantity and quality of seed. cultivation of resistant cultivars is the most effective method of  the disease control. to identify disease resistant genotypes of selected beans, an experiment was conducted in  agriculture and natural resources research ...

zagros forests are a treasure of various valuable species of oak in iran and the world. long-term misuse in the past has caused severe degradation in the zagros forests. recently these forests have become national but misuses by local people to make living because of poverty and unemployment are continued. in order to reduce degradation and improve sustainability, ecological capability for exte...

effects of different amounts of morning liming on blood ionic parameters and blood biochemical parameters of cultured carp ponds in dikjeh area of gonbad were investigated. 9 ponds (3 hectars) were chosen and divided in 3 treatments (1- liming 750 mg/l, 2- liming 1250 mg/l, 3- liming 1750 mg/l). liming had significant effect on blood hematocrite (p0.05) were observed between other blood paramet...

effect of foliar spraying by humic acid on mineral leaf composition, yield and fruit quality of apple (malus domestica l. cv. ‘granny smith’) was studied. an experiment based on randomized complete design was conducted in khorramdare city of zanjan province. spraying of humic acid was conducted in four levels 0, 5, 10 and 15 mg/l on eight year-old ‘granny smith’ apples grafted on mm106 rootstoc...