Uptake of Ca(2+) by suspension-cultured pear (Pyrus communis L. cv Passe Crassane) cells and protoplasts was significantly enhanced by exposure to 38 degrees C compared to 25 degrees C. The increased uptake was specific for Ca(2+) and was not due to cell wall binding. Tissues pretreated at 38 degrees C showed increased uptake even upon return to 25 degrees C. Treatment with carbonylcyanide m-ch...

Appendix: Crop Budget Worksheet ....................... 21 Photo courtesy of USDA/ARS. Introduction Good markets exist for organic sweet corn. However, adequate weed and insect control can be diffi cult to achieve. This production guide addresses key aspects of organic sweet corn production, as well as postharvest handling and economics. A list of Internet resources on sweet corn provides acces...

Twenty bacterial antagonists of postharvest dry rot of potatoes (caused by Fusarium sambucinum) were screened for the production of antibiotics by bioautography. Samples of liquid cultures of bacterial strains harvested at three growth times and extracted with three solvents at three pHs were used to directly detect antibiotics inhibitory to F. sambucinum grown on the surface of thin-layer chro...