The experiment was conducted during 2013/2014 and 2014/2015 successive storage seasons. A combination of two local cultivars of garlic namely, Assiut and El-Minia were arranged in a randomized complete block design (CRBD) with 4 replicates. This work aimed to study the effect of storage methods (packaging including storage in news paper and polyethylene bags, Basal stem removing, heat and Edible coating treatments (Agar, Agar+Gellan, Agar+Chitosan,Gellan and Chitosan) on some garlic physical and chemical properties. It could be concluded that garlic physical and chemical properties of stored garlic bulbs significantly influenced by the storage methods. Keeping it in Polyethylene bags gave the highest weight losses while wrapping in newspaper gave the minimum weight losses (%) and empty cloves (%). Protein and flavonoid significantly increased while carbohydrate (%) significantly decreased in comparison to fresh and control treatment as a results of storage treatments.

The experiment was conducted during 2013/2014 and 2014/2015 successive storage seasons. A combination of two local cultivars of garlic namely, Assiut and El-Minia were arranged in a randomized complete block design (CRBD) with 4 replicates. This work aimed to study the effect of storage methods (packaging including storage in news paper and polyethylene bags, Basal stem removing, heat and Edible coating treatments (Agar, Agar+Gellan, Agar+Chitosan,Gellan and Chitosan) on some garlic physical and chemical properties. It could be concluded that garlic physical and chemical properties of stored garlic bulbs significantly influenced by the storage methods. Keeping it in Polyethylene bags gave the highest weight losses while wrapping in newspaper gave the minimum weight losses (%) and empty cloves (%). Protein and flavonoid significantly increased while carbohydrate (%) significantly decreased in comparison to fresh and control treatment as a results of storage treatments.

The experiment was conducted during 2013/2014 and 2014/2015 successive storage seasons. A combination of two local cultivars of garlic namely, Assiut and El-Minia were arranged in a randomized complete block design (CRBD) with 4 replicates. This work aimed to study the effect of storage methods (packaging including storage in news paper and polyethylene bags, Basal stem removing, heat and Edible coating treatments (Agar, Agar+Gellan, Agar+Chitosan,Gellan and Chitosan) on some garlic physical and chemical properties. It could be concluded that garlic physical and chemical properties of stored garlic bulbs significantly influenced by the storage methods. Keeping it in Polyethylene bags gave the highest weight losses while wrapping in newspaper gave the minimum weight losses (%) and empty cloves (%). Protein and flavonoid significantly increased while carbohydrate (%) significantly decreased in comparison to fresh and control treatment as a results of storage treatments.

Tomato fruit firmness is crucial for reducing loss during handling and marketing. The current study was conducted to identify the type gene action, heritability and genetic gain from selection of tomato fruits in addition to its associations with other traits .The bi-parent cross 'Peto-86' (high fruit firmness) x 'Supermarmande' (low fruit firmness) was used. The investigation employed the analysis of generation (two parents, F1, F2 and F3) mean and variance components based on the five parameters model. It was observed that all gene effects were influential (d= Additive effect, h= dominance effect, l= Dominance x Dominance and i= Additive x Additive). Effect of d, h and i had positive sign while l value was large and negative. Heritability estimate in narrow sense for F2 was 28.0% and elevated to 40.5% in F3. Genetic gain from selection was 11.19% relative to F2 mean. Associations for fruit firmness with other main yield and fruit quality traits were few in number and low in magnitude. It was concluded that improvement of the fruit firmness can be achieved through direct selection in later generations.

Tomato fruit firmness is crucial for reducing loss during handling and marketing. The current study was conducted to identify the type gene action, heritability and genetic gain from selection of tomato fruits in addition to its associations with other traits .The bi-parent cross 'Peto-86' (high fruit firmness) x 'Supermarmande' (low fruit firmness) was used. The investigation employed the analysis of generation (two parents, F1, F2 and F3) mean and variance components based on the five parameters model. It was observed that all gene effects were influential (d= Additive effect, h= dominance effect, l= Dominance x Dominance and i= Additive x Additive). Effect of d, h and i had positive sign while l value was large and negative. Heritability estimate in narrow sense for F2 was 28.0% and elevated to 40.5% in F3. Genetic gain from selection was 11.19% relative to F2 mean. Associations for fruit firmness with other main yield and fruit quality traits were few in number and low in magnitude. It was concluded that improvement of the fruit firmness can be achieved through direct selection in later generations.

Tomato fruit firmness is crucial for reducing loss during handling and marketing. The current study was conducted to identify the type gene action, heritability and genetic gain from selection of tomato fruits in addition to its associations with other traits .The bi-parent cross 'Peto-86' (high fruit firmness) x 'Supermarmande' (low fruit firmness) was used. The investigation employed the analysis of generation (two parents, F1, F2 and F3) mean and variance components based on the five parameters model. It was observed that all gene effects were influential (d= Additive effect, h= dominance effect, l= Dominance x Dominance and i= Additive x Additive). Effect of d, h and i had positive sign while l value was large and negative. Heritability estimate in narrow sense for F2 was 28.0% and elevated to 40.5% in F3. Genetic gain from selection was 11.19% relative to F2 mean. Associations for fruit firmness with other main yield and fruit quality traits were few in number and low in magnitude. It was concluded that improvement of the fruit firmness can be achieved through direct selection in later generations.

Tomato fruit firmness is crucial for reducing loss during handling and marketing. The current study was conducted to identify the type gene action, heritability and genetic gain from selection of tomato fruits in addition to its associations with other traits .The bi-parent cross 'Peto-86' (high fruit firmness) x 'Supermarmande' (low fruit firmness) was used. The investigation employed the analysis of generation (two parents, F1, F2 and F3) mean and variance components based on the five parameters model. It was observed that all gene effects were influential (d= Additive effect, h= dominance effect, l= Dominance x Dominance and i= Additive x Additive). Effect of d, h and i had positive sign while l value was large and negative. Heritability estimate in narrow sense for F2 was 28.0% and elevated to 40.5% in F3. Genetic gain from selection was 11.19% relative to F2 mean. Associations for fruit firmness with other main yield and fruit quality traits were few in number and low in magnitude. It was concluded that improvement of the fruit firmness can be achieved through direct selection in later generations.

Genetic variations in tissue-culture tomato plants has been examined by agro-morphological evaluation and molecular markers analysis. Four tomato varieties were used as donor parents, two types of explants (Cotyledone and hypocotyle) and two combinations of auxin and cytokinin with different concentrations were used for the first time to study the effect of genotype, type of explants and growth regulators on callus induction and plant regeneration in tomato. Significant differences among tomato varieties were observed in all tissue culture studied traits (percentage of callus induction, regeneration rate, number of regenerated plants and number roots per explant). These differences were depending on genotype, explant type, type and concentration of growth regulators. The best regeneration medium from each growth regulator combination distinct used for establishment of regenerated plants. Regenerated plants from each combination of growth regulators which exhibited wide variations compared with its donor parent were selected and subjected to somaclonal variation analysis using molecular markers and agro-morphological traits. Two molecular marker systems, ISSR (inter simple sequence repeat) and SRAP (sequence related amplified polymorphism) were used to analysis of somaclonal variation. These markers revealed polymorphism showing distinct different banding patterns in all somaclones, which were prominent in their differences from the donor parents. To confirm stability of these variation, regenerated plants (R0) from donor parents were transferred to the greenhouse and the first generation of these somaclones (R1) as well as their donor parents were evaluated for plant height, number of branches per plant, No. of inflorescences per plant, No. of flowers per inflorescence, No. of flowers per plant, number of fruits per plant and yield per plant. Generally, the results revealed that some somaclones exceeded their donor parents in one or more traits.

Genetic variations in tissue-culture tomato plants has been examined by agro-morphological evaluation and molecular markers analysis. Four tomato varieties were used as donor parents, two types of explants (Cotyledone and hypocotyle) and two combinations of auxin and cytokinin with different concentrations were used for the first time to study the effect of genotype, type of explants and growth regulators on callus induction and plant regeneration in tomato. Significant differences among tomato varieties were observed in all tissue culture studied traits (percentage of callus induction, regeneration rate, number of regenerated plants and number roots per explant). These differences were depending on genotype, explant type, type and concentration of growth regulators. The best regeneration medium from each growth regulator combination distinct used for establishment of regenerated plants. Regenerated plants from each combination of growth regulators which exhibited wide variations compared with its donor parent were selected and subjected to somaclonal variation analysis using molecular markers and agro-morphological traits. Two molecular marker systems, ISSR (inter simple sequence repeat) and SRAP (sequence related amplified polymorphism) were used to analysis of somaclonal variation. These markers revealed polymorphism showing distinct different banding patterns in all somaclones, which were prominent in their differences from the donor parents. To confirm stability of these variation, regenerated plants (R0) from donor parents were transferred to the greenhouse and the first generation of these somaclones (R1) as well as their donor parents were evaluated for plant height, number of branches per plant, No. of inflorescences per plant, No. of flowers per inflorescence, No. of flowers per plant, number of fruits per plant and yield per plant. Generally, the results revealed that some somaclones exceeded their donor parents in one or more traits.

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