HETEROTIC PERFORMANCE ON SOME HISTOLOGICAL; ELECTROPHORETIC AND AGRONOMIC TRAITS IN TOMATO (Lycopersicon esculentum L.) | ||
| Journal of Plant Production | ||
| Article 6, Volume 29, Issue 11, November 2004, Pages 6225-6249 PDF (6.78 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpp.2004.238874 | ||
| Authors | ||
| I. M. EI- Ghareeb,1; A. H. Amer1; M. N. A. Saeed2 | ||
| 1Hort. Res. Inst., Res. Center. Giza, Egypt. | ||
| 2Dept. of Botany and Plant Pathology, Fac. of Agrlc., Zagazlg Univ. | ||
| Abstract | ||
| The (5.) of seven tomato cultivars Le. Prichard, Cal Rock; Beto 98; Ace 55 V.F; Floradade; Super strain B and Money Maker and their hybrids without reciprocals were used in this investigation to determine the heterotic performance on some histological leaflets; electrophoretic, and agronomic traits. Most of the hybrids showed positive and highly significant values for many histological leaflet traits i.e. thickness of upper; lower epidermis; palisade; spongy tissues; blade leaflet; dimensions of both upper epidermis cell and midvienal bundles as well as the diameters and thickness of vessels. Producing hybrids, heterotic for some histological leaflets traits may increase the mechanical resistance to stress conditions and some serious insects as white fly as well as other dangerous diseases. The electrophoretic studies showed that all hybrids were characterized by the increase in band number and intensity as compared with their respective parents. As for agronomic traits, most of the best heterotic combinations were identified as the combinations of most parental cultivars with Money Maker as a female parent. Total soluble solids traits showed positive and insignificant values over mid and better parent. Meanwhile more negative and insignificant values were detected for fruit pH. Making use of protein electrophoretic studies the best hybrids that appeared highly band number and intensities, showed also the highest positive and Significant heterosis values for agronomic traits, and the effective leaflets histological traits. The combinations between Prichard; Cal Rock; Beto 98 and Floradade as a male parent with Money Maker as a female, as well as, the hybrid Floradade lC Super strain S, expressed such situation. The study of protein band number and intensity, for the hybrids confirms the possibility of nyonos selection In labs before the field evaluation. | ||
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