EFFECT OF POLYETHYLENE COLOUR ON GROWTH AND PRODUCTIVITY OF SWEET PEPPER

SAMIR MAHMOUD MOHAMED SALEH


Abstract


The current studies were conducted at Dokki Protected Cultivation site, Giza Governorate, during 1997- 1998 and 1998-1999 seasons in order to investigate the growth and production of sweet pepper (Capsicum annuum) cv. Gedeon F1 hybrid under different plastic cover colours. Seeds were sown on July 16'11 ; 1997 & July 10'11, 1998 and seedlings were transplanted on first of September 1997 & 1998, respectively. Four treatments were applied as follow: 1- A greenhouse covered with red plastic colour; 2- A greenhouse cover d with blue plastic colour; 3- A greenhouse covered with violet plastic colour; 4- and a greenhouse covered with yellow-green (normal) plastic colour as control. Significant differences among different treatments were observed. The best results were obtained under the red plastic which had the highest total fruit weight, number of leaves and Abscisic acid content in the leaves, phosphorus and potassium content in the leaves followed by the control, blue, and finally violet plastic colour. The highest length of plant as well as total leaf area, GA3 and zeatin riboside content in the leaves, percentage of nitrogen and calcium content in the leaves were found in the violet plastic colour, followed by blue then control and finally with the red plastic cover colour.


Other data

Other Titles تأثير لون الغشاء البلاستيكي علي نمو وانتاجية الفلفل الحلو
Keywords Capsicum annuum - sweet pepper - plastic colour - plastic cover - plastic houses - light intensity - solar radiation - light quality.
Issue Date 2002
URI http://research.asu.edu.eg/handle/12345678/17904


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