ABSTRACT

When preparing to either produce or purchase transplants, four preplanting factors must be considered: (1) variety, (2) seed quality and seed handling procedures, (3) equipment and material, and (4) the market. Seed quality relates to genetic, physical, and physiological aspects. Genetic factors relate to hybrid vigor, genetic superiority, and being true to type. Physical quality means undamaged seed and seed free of contaminants, such as weed seeds and pathogens. Physiological quality refers to seed viability and transplant vigor. All these factors are discussed in detail on two websites: https://www. oardc.ohio-state.edu/ and https://www.omafra.gov.on.ca/english/crops/facts/ 94-061.htm.