ISHS Acta Horticulturae 407: ISHS Brassica Symposium - IX Crucifer Genetics Workshop
THE INFLUENCE OF ROW COVER ON THE DEVELOPMENT AND YIELD OF BROCCOLI IN SPRING PRODUCTION |
| Authors: | E. Kunicki, S. Cebula, A. Libik, P. Siwek |
| Abstract:
The three-year field experiment with broccoli was conducted near Cracow (southern Poland). The seedlings of Corvet F1 were planted on two dates (first and second half of April) at 45x45 cm spacing. Row cover treatments consisted of 0.04 mm thick perforated polyethylene plastic (100 holes of 10 mm diameter per 1 m2), polypropylene non-woven fabric Agryl P-17, and control (no cover). The applied types of row covers promoted the greater leaf area and resulted in 3–4 day earlier harvest in comparision with the control plants. Both covers affected to the same degree the total and marketable yields of main heads which were significantly higher than those from control plants. Similarly the mean weight and diameter of collected broccoli heads were smaller than the control. At the earlier planting date the yields from plastic film covered plots were slightly higher than in plants with Agryl and control. The culture under plastic caused the decrease in the vitamin C content of broccoli as compared with Agryl. Covered plants showed a good control of the cabbage fly (Delia brassicae) which destroyed a large number plants in the control plots. | |
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