Apical senescence but not flower initiation is delayed by short days (SD) compared to long days (LD) in pea plants (Pisum sativum L.) of genotype E Sn Hr. We recently reported that delay of senescence correlated with slower reproductive development, suggesting that fruits are weaker sinks for assimilates under delayed senescence conditions. Thus, we have examined assimilate partitioning in peas...

A morphogenesis checkpoint in budding yeast delays cell cycle progression in response to perturbations of cell polarity that prevent bud formation (Lew, D.J., and S.I. Reed. 1995. J. Cell Biol. 129:739- 749). The cell cycle delay depends upon the tyrosine kinase Swe1p, which phosphorylates and inhibits the cyclin-dependent kinase Cdc28p (Sia, R.A.L., H.A. Herald, and D.J. Lew. 1996. Mol. Biol. ...

When studying a forest disease, understanding the phenological relationship of host tree and its pathogens is essential for identifying optimal management strategies to help prevent future spread disease. Since beech leaf disease (BLD) recently discovered information about general epidemiology symptom phenology largely unavailable. This study sought answer questions related progression by condu...

This study aimed to determine the effects of low biuret urea and calcium nitrate application on earliness, fruit set, yield, quality characteristics in ‘Astoria’, ‘Maya’ peaches, ‘Garbaja’ nectarine cultivars. In study, Bud Feed (low 15%) (calcium oxide 12% total nitrogen 7%) were applied 35 days before bud break. this flowering harvest times, evaluated. The source temperatures used calculate c...

Bud primordia of Picea abies, despite a frozen shoot, stay ice free down to -50 °C by a mechanism termed supercooling whose biophysical and biochemical requirements are poorly understood. Bud architecture was assessed by 3D-reconstruction, supercooling and freezing patterns by infrared video thermography, freeze dehydration and extraorgan freezing by water potential measurements, and cell-speci...

Experiments have been done to confirm the previously reported effect of indoleacetic acid (IAA) on the rate of CO(2) assimilation in bean leaves. It was shown that spraying the leaves of a variety of plants caused an increase in the rate of CO(2) assimilation from 30% to 100% during the half-hour to 1 hour period following spraying. The only plant tested which did not show such an effect was co...