ISHS Acta Horticulturae 366: II Symposium on Protected Cultivation of Solanacea in Mild Winter Climates
THE EFFECT OF AIR TEMPERATURE ON FRUIT YIELD OF SWEET PEPPER (CAPSICUM ANNUUM) GROWN UNDER PLASTIC HOUSES IN EGYPT |
| Authors: | A.F. Abou-Hadid, A.S. El-Beltagy, M.A. Medany |
| Abstract:
Sweet pepper, Capsicum annuum, cv. Gedeon is one of the major crops grown under plastic houses in Egypt. The experiments were carried out at El-Bosaily a protected cultivation site, in the Northern Coast of Egypt, for the two successive growing seasons of 1989/90 and 1990/91. Several treatments, i.e., warm air, water tubes, and straw were used in order to increase the night temperature in a plastic house as compared to the control, non-heated plastic house. Results obtained proved that any increase in night temperature resulted in a considerable increase in fruit yield. Incremental cost, profit and benefit-cost ratios were estimated for each treatment. The heating treatment proved the importance of improving night temperature in increasing crop yield. Warm air showed a lower benefit-cost ratio than the control due to the high initial and running costs in spite of having much higher yields than the control. | |
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