Phenotypic characterization and selection of F2 tomato population for fruit uniformity and nutrient improvement quality. (Lycopersicon esculentum L.)

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Research Paper 01/01/2017
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Phenotypic characterization and selection of F2 tomato population for fruit uniformity and nutrient improvement quality. (Lycopersicon esculentum L.)

Zainullah Hazim, Adel, D. Al- Alqurashi, Abdullah Ahmady Najibullah Rahmatzai, Magdi A. A Mousa
Int. J. Biosci.10( 1), 246-255, January 2017.
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Fruit uniformity and physiochemical nutrients improvement define the quality of tomato (Lycopersicun esculentum L.)  The objective of this study was to improve the fruit uniformity and nutrients in F2 population, while selected two parents for crossing. The donor parent (Lycopersico nesculentum var cerosiforme, cherry tomato, LA 1421, TGRC) used as a male and (L. esculentum) accession of LA 2711, TGRC) used as a female. These selected parents crossed to generate F1 hybrids in 2013.these F1 crosses along with parents were planted in second season and evaluated. From the F1 hybrids plants are selected and back crossed and also the F1 selfed to produce F2 seeds in 2014.The (P1 and P2) parent cultivars the F1 and F2 first and second filial generations and the BC1 is first back crosses all these generation produced in two cropping seasons and grown in the same cropping season. Analysis data showed significantly improvementinF2 population compare to P1 LA2711asrecorded number of branches per plant in F2 (41.66%), number of cluster per plant (1.13%) and plantyield in kg (13.81 %) improvement, Nutrients analysis recorded better results and improved in F2 population as pH (6.01%), ascorbic acid (8.46%), TSS (17.95), fruit firmness (23.17%), total phenols (35%) and fruit uniformity of F2 population recorded 62.4% in total. So it can be concluded that the F2 population can be used as a better source for next plant breeding and selection process.


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