The photosynthetic behavior of the dinoflagellate Gonyaulax tamarensis was investigated using single-cell isolation techniques at various stages during growth in a natural bloom in Salt Pond, Massachusetts, USA, and in laboratory cultures. Cell-specific photosynthetic capacity (PrnaxCen) increased from 0.25 to 0.32 ng C cell-' h-' during bloom development, then dropped sharply to 0.19 ng C cell...

abstract an investigation was performed in a commercial orchard in shiraz to study the effect of time of application of cuso4 and streptomycin on quality and seedlessness of grapevine (vitis vinifera l. cv. ‘siyah-e-shiraz’). the experiment was conducted as completely randomized block design with 3 replications. plants were treated with 25 mgl-1 cuso4. 5h2o and 200mgl-1 streptomycin 2,4 and 6 d...

Chrysanthemum sp. is a floricultural plant of the Asteraceae family with high economic value. The anthocyanin pigment in red chrysanthemum acts as an antioxidant, content which can be influenced by genetic factors such physiological age flower. This study aimed to determine effect flower on and antioxidant activity plants. used was 115 Days After Planting (DAP) (early bloom stage), 120 DAP (hal...

Neck shrivel is a fruit disorder of european plum ( Prunus domestica L.). We investigate whether an asymmetrical distribution osmolytes might explain the observations turgid stylar end and flaccid stem end, in selection 17 cultivars sourced from two sites. The osmotic potential (Ψ Π ) juices expressed or samples decreased (became more negative) during development. cell turgor P slightly increas...

Calafate (Berberis microphylla G. Forst) is an evergreen shrub with blue berries that grows naturally in Patagonia, South America. It has beneficial nutraceutical characteristics for human health. The objective of the research was to evaluate effect different harvest dates calafate clones south-central zone Chile on polyphenolic content, antioxidant capacity, quality parameters and fruit yield....

broomrape would have irreversible effects on tomatoes in all growth stages and the damage would be unrecoverable. in order to chemically control orobanche spp with consumption of bio-fertilizer in tomato cultivation, an experiment as factorial based on complete randomized blocks design in three replications and 12 plots was carried out at a farm which is located in mahabad city (iran). in this ...

Parasitic dinoflagellates of the genus Amoebophrya infect free-living dinoflagellates, some of which can cause harmful algal blooms (HABs). High prevalence of Amoebophrya spp. has been linked to the decline of some HABs in marine systems. The objective of this study was to evaluate the impact of Amoebophrya spp. on the dynamics of dinoflagellate blooms in Salt Pond (MA, USA), particularly the h...

abstract the goal of this experiment was to save apricot flowers from late spring frost damage. this experiment was conducted during 2007-2008 to examine the effect of application of different concentrations of gibberellic acid in two forms pure (ga3) and impure (berelex) at (0, 50, 100, 200, 300 mgl-1) at 23 august and 23 september to delay flowering in apricot asgarabad cultivar. a factorial ...