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EFFECT OF CULTIVAR, SOWING DATE AND PLASTIC COVER SORT ON THE RESIST OF FLOWERING GROWTH AND YIELD OF TOMATO ( Lycopersicon esculentum Mill ) TO LOW TEMPERATURE | ||
| Basrah Journal of Agricultural Sciences | ||
| Article 5, Volume 20, Issue 1, 2007, Pages 63-83 PDF (0 K) | ||
| DOI: 10.33762/bagrs.2007.56207 | ||
| Authors | ||
| Essam H. A. Al-Doghachi Faisal A.R. Al-Refai; Mohammad S. Resain | ||
| Abstract | ||
| This study was conducted under desert conditions at Al-Basrah city during the winter season of 2004/2005. The aim of the experiment was to study the influence of low temperature on flowering growth behaviors and yield of three tomato cultivars. Experiment included (24) treatments resulting from the interaction between three cultivars ( "Douna"," Hatouf" and "Super Marmande"), two sowing dates (1/9 and 1/10) and four sorts of plastic cover ( 1. New plastic G.E.P.I. production 2. Old plastic G.E.P.I. production 3. Yellow plastic Yugoslavia production 4. Commercial plastic Lebanon production). Randomized Complete Block Design was used with three replicates. L.S.D. test was used at probability of 5% to compare mean variations. Results can be summarized as follows:- It was found that sowing date of 1/9 gave a significant increase in the damage percentage of fruits comparing with 1/10 as well as inflorescence and fruit number after 90 and 180 days from sowing and yield per plant,(2.571kg ), early yield (2.437ton.donum-1) and total yield(13.845 ton.donum-1). "Super Marmand" cultivar gave a significant increase in percentage of damage comparing with " Hatouf" and " Douna". Inflorescences and fruits number "Douna" and "Hatouf" cultivars gave a significant increases after 90 and 180 days from sowing as well as yield per plant,(2.506 and 2.716kg respectably ) and total yield(13.506 and 14.693 ton.donum-1 respectably). " Hatouf " gave a significant increase in inflorescence number after 90 day and fruits number after 90 and 180 days comparing with " Douna" as well as yield per plant and total yield . Plastic covers, the commercial one gave heights percentage of damage, than new plastic G.E.P.I , old plastic G.E.P.I lastly the yellow one they were 28.5%, 20.5%, 11.5% and 5.2% respectably. Regarding growth vigor plants sowing under the yellow one gave significant increases in inflorescence and fruit number after 90 and 180 days as well as yield per plant, early yield and total yield(2.504 kg, 2.591 and 13.541 ton.donum-1 especially. comparing with other covers. Interaction between the three factors gave a significant increases in damage percentage as well plant yield. | ||
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