Direct plant covering and soil mulching in the spring production of some Chinese cabbage cultivars. Effect of
temperature on premature bolting
Andrzej Kalisz, Stanisław Cebula
Department of Vegetable Crops and Horticultural Economics
Faculty of Horticulture, University of Agriculture in Kraków
29 Listopada 54, 31-425 Kraków, Poland
The effect of air and soil temperature on premature bolting of Chinese
cabbage cultivars Optico F1, Akala F1,
Sumiko F1, and Parkin F1
grown in spring was investigated. An unfavourable effect of low air
temperatures during hardening of transplants was noted, which brought
about an increase in the percentage of bolting plants. The application of
plastic covers during field cultivation considerably improved the thermal
conditions of the air and soil in comparison with the control object,
leading to an increase in plant resistance to vernalization. The greatest
reduction in bolting was caused by non-woven PP and PE-75 film. Optiko F1
proved to be only slightly susceptible to bolting, revealing a lack or
fairly small share of vernalized plants. Sumiko F1
and Parkin F1 turned out to be distinctly
irresistant to thermal conditions in spring, however, both responding well
to covering with non-woven PP.
Kalisz A., Cebula S., 2001. Direct plant covering and soil
mulching in the spring production of some Chinese cabbage cultivars.
Effect of temperature on premature bolting. Folia Horticulturae 13/1: 13-22.