Seed production of annual weeds persisting through cropping phases replenishes/establishes viable seed banks from which these weeds will continue to interfere with crop production. Harvest weed seed control (HWSC) systems are now viewed as an effective means of interrupting this process by targeting mature weed seed, preventing seed bank inputs. However, the efficacy of these systems is directl...

A modified pesta granule was developed for Pseudomonas fluorescens BRG100, a bioherbicidal bacterium for grass weeds, green foxtail (Setaria viridis) and wild oat (Avena fatua). This study reports: i) the effect of formulation water activity (aw) on survival of P. fluorescens BRG100 and, ii) the effect of starch on disintegration and dispersal of a green fluorescent protein transformant of P. f...

There has been some diiïereiice of opinion as to whether there is an association between catalase activity and respiration. In 1910 Appleman (1) ^ noted a correlation between the two in the potato tuber and later (2) observed the same thing in potato tubers manipulated in various ways to modify respiration and in stem and seed ends of the same tuber. He found a similar correlation in stored swe...