The course of growth and yielding of white and green cauliflower cultivated in two terms for autumn production
2005
Cebula, S. | Kalisz, A. | Kunicki, E.
The three-year long experiment (2002-04) was aimed at finding the dependence between the pattern of weather conditions and the vegetative growth and cropping course of the white and green cauliflower cultivars planted for autumn harvesting. For white cauliflower, the late cultivar Planita F1 and early one Farras F1 cultivar were used, for the green caulifower Trevi F1 and Panther F1 cultivars were used, respectively. Plants of late cultivars were planted in the second half of June, which is the usual time for autumn cultivars, whereas the early ones in the first half of July, the time used following the harvesting of certain forecrops. During vegetation, measurements were taken of the plants' height and diameter as well as the number of formed leaves. The times of initial curd formation as well as consecutive harvests were also registered. Weather conditions included daily measurements of maximal, minimal and average air temperature, as well as totals of atmospheric rainfalls. Intensive vegetative growth (height and diameter of plants, as well as the number of formed leaves) was proved for both cauliflower types in full summer (end of July, August) until first curd harvesting. Planting in the second half of June and the first half of July of the cultivars of white and green cauliflowers of different lengths of the vegetation period allowed for proper timing of the course of harvesting. Using the delayed planting time it became possible to move harvesting to the later time in autumn. The cultivars of green cauliflower used in the experiment turned out to harvest a bit later than the white cultivars. However, in all years of the experiment, for both planting times, full harvest of curds turned possible. The analysis of harvesting dynamics against the weather conditions in particular years, at certain periods showed the visible effect of temperature on accelerating or delaying the cropping of both cauliflower types
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