EXTRACT AND EVALUATION OF LOCAL TOMATO LINES WITH HIGH YIELDING AND IMPROVED QUALITY | ||
| Journal of Plant Production | ||
| Article 11, Volume 27, Issue 4, April 2002, Pages 2107-2125 PDF (5.26 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpp.2002.253964 | ||
| Authors | ||
| M. A. Nassar,; O. S. EI-Kobisy; H. R. Hassan; Awatif A. Megahed; K. S. Emara | ||
| Department of Agricultural Botany, Faculty of Agriculture, Cairo University,Giza, Egypt. | ||
| Abstract | ||
| Through hybridization and selection breeding programme carried out at Department of Agricultural Botany in the Agricultural Experiments and Researches Station, Faculty of Agriculture, Cairo University, to increased yield and improve quality of tomato crop, a few number of F2 -transgressive segregant plants were obtained from crossing of three tomato cultivars (Marmande,UC 97-3 and Tamina). Viability test of seeds for all F2-segregant plants was done to select F2-segregants which showed high seed viability. Seeds of F2-segregant plants which showed high viability as well as seeds of the original cultivars and of imported hybrid (Grandure ) were sown on is" February, 1999 in seedling trays containing a mixture of peatmoss and vermiculite at ratio of 1: 1. Six weeks later, seedlings of all genotypes were harvested from trays and transplanted in a plastic greenhouse in a randomized complete block design with three replicates to follow up the vegetative and reproductive growth of the F3- generation in comparison with their parental cultivars and imported hybrid. The experiment was replicated in the second season at the end of Februa.y, 2000 to follow up the vegetative and reproductive growth of F4-generation in the same manner that reported in F3-generation. The evaluation included studies on morphological characters, earliness, yield and fruit quality characters as well as the anatomical structure of the main stem. The obtained results indicated that all studied characters were significantly affected by the genotype and some selections surpassed significantly their parental cultivars and the imported hybrid in this respect. In F3-generation, it is worthy to note that the selection U x M 20-22 recorded 1338.2g for fruit yield per plant which exceeded significanily the best cultivar Marmande (782.6g fruit yield per plant) by 71% and the imported hybrid Grandure (1015.7g fruit yield per plant) by 31.8%. In F4-generation, the selection M x T 21-2 recorded 1740.0g for fruit yield per plant which exceeded significantly the best cultivar Marmande (1037.6g fruit yield per plant) by 67.8% and the imported hybrid Grandure (1289.5g fruit yield per plant) by 34.9%. | ||
| Keywords | ||
| Extract; Evaluation; Tomato lines; High yield | ||
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