Effect of Harvest Date on Performance of Sugarbeet Hybrids

As a rule of thumb, sugarbeets continue to and synthesize sugar until prolonged temperatures of 26°F or inactiva te the photosynthetic mechanism. In the zone of the world where most are grown, harvest is bad weather fall and early winter as a maximum quality and are often not attained because of harvest. In some time so the sugar factories can be with possibly a reduced storage period. There are reasons for wanting to know whether variety x date of harvest interactions exist for root sugar content, and purity, operators would like a "mature beet" (high sugar content and purity) if they are to processing at an early date. might be early harvest, midseason late harvest where a choice of harvest date is feasible. breeder could in these management decisions if dates exist. breeder who has to rely on the use laboratory when it is below its use on rrn.w,pre to know if harvest date earlier or later than cause to the varieties he has under trial. It was with this in mind there is only a limited amount of were conducted to determine influenced b.y date of harvest. The results of five variety date-of-harvest experiments are . The first two were at two dates of harvest with Colorado and Chinook, Mon­ tana in 1961. The other three were conducted in 1971 and 1972 at Colorado and 1973 at Billings, Montana.