Accumulated growing degree-days above 5 °C (GDD) were used to estimate the average time of occurrence of maturity stages before first harvest in post seeding years for alfalfa (L.), double cut red clover (L.) and timothy (L.) in the Atlantic region of Canada. Maturity stages recommended...
The occurrence of first fall frost (FFF) and last spring frost (LSF) in terms of day of the year for the CONUS is presented in Figs5a,b, respectively. Both FFF and LSF follow a north to south latitudinal spatial trend, except some extremes in the Rocky Mountain ranges. FFF occurs later...
Influence of sowing dates on the growing degree days and phenology of winter maize (Zea mays L.) A 3-year study indicated that maize sown on October 22 took fewer days for seedling emergence, tassel emergence, silking and maturity than that sown on November 11 and December 1. Seedling emer...
Influence of sowing dates on the growing degree days and phenology of winter maize (Zea mays L.) A 3-year study indicated that maize sown on October 22 took fewer days for seedling emergence, tassel emergence, silking and maturity than that sown on November 11 and December 1. Seedling emer...
Increases in GDD10, GDD4.4 (potato) and GDD5.5 (alfalfa) also occurred at nearly all stations for all months during 1994–2007. Higher temperatures increase the number of GDD, quickening crop growth and maturity, and potentially reducing yield and quality unless varieties are adapted to changes ...
Based on ordinal days, the last vernal freeze is occurring (p p 10, GDD4.4 (potato) and GDD5.5 (alfalfa) also occurred at nearly all stations for all months during 1994–2007. Higher temperatures increase the number of GDD, quickening crop growth and maturity, and potentially reducing ...