VIGOR IN VEGETABLE SEEDS
Recent attempts have been made to quantify vigor through some sort of test measurement such as accelerated aging, tetrazolium staining, cold germination or conductivity measurements. However, before accurate precise testing procedures are determined for a general range of seed types, more information regarding the biochemistry and physiology of seed vigor must be ascertained. This includes vigor as it is predetermined by genetic make-up, how it is altered during seed development and finally, how storage affects vigor. These concepts are presently being studied at the University of Florida on several different types of seed. Results suggest that seed vigor can be genetically controlled thus improved during the plant breeding process. Altering the environment to provide optimal conditions for seed development gives the greatest potential for seeds which are high in vigor. Finally, proper storage can circumvent this as a major factor in vigor decline.