ISHS Acta Horticulturae 39: Symposium on Basic Problems of Protected Vegetable Production
PHYSIOLOGICAL PROBLEMS OF EXPERIMENTS WITH CAULIFLOWER IN GROWTH CHAMBERS |
| Authors: | H.J. Wiebe, H. Krug |
| Abstract:
When growing cauliflower in growth chambers young leaves suffered from "tipburn". The curds became "glassy" with a diameter of 3–4 cm. Both growth disturbances are caused by calcium deficiency in the respective tissues in spite of high calcium supply to the roots. Calcium deficiency in the curds can be prevented by a periodically changing water potential in the plant, especially by changing air humidity. This leads to alternating shrinking and swelling and a stronger calcium depositing through the xylem. | |
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