الفهرس 
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Abstract
This study was conducted at the Experimental Farm (Faculty of Agriculture, Minia University, El-Minia, Egypt) during the three successive winter seasons of 2007/2008, 2008/2009, and 2009/2010. The study was divided into two experiments as follow:
Experiment 1: Garlic genotypes evaluation trial Aimed to evaluate the performance of six garlic genotypes (Clone 21, Clone 24, Egyptian, Egaseed1, Sids 40, and El-Wady clone) differ in their bulb skin color under El-Minia growing conditions, Minia, Egypt. The collected materials were evaluated in a yield trial using the Randomized Complete Block Design (RCBD) with four replicates. Growth and bulb characteristics Germination % was affected significantly by the growing seasons at two out of the three studied ages (10 and 20 days from planting). However, values were high at the age of 30 days for all studied genotypes and ranged from 88.65% to 92.09% with significant differences. Data of garlic plant height after 130 days from planting reveals that the genotype had an effect on this trait as El-Wady and Clone 24 gave the highest values (97.075 and 93.475 cm, respectively) with insignificant differences between both of them and with significant differences with the other genotypes specially Sids 40 which gave the lowest value (82.300cm). The interaction of genotype X year also showed effects on the plant height trait as Clone 24 in the first season, El-Wady in the second season, El-Wady in the first season and Clone 21 in the first season gave high values (97.700, 97.450, 96.700 and 96.000, respectively) and the lower value was given by the interaction of the first year with Sids 40 (82.000cm).
Regarding the number of leaves/plant after 130 days from planting and garlic cultivar Egaseed 1 recorded the highest significant value (9.412) followed by Sids 40 (9.162) with insignificant differences between them, while the lowest value was given by El-Wady (7.800) with significant differences with Egaseed 1 and Sids 40. The interaction effect between the growing genotypes and growing seasons was significant as the number of leaves ranged from 9.525, which resulted from growing Egaseed 1 in the first growing season, to 7.650 given by the Egyptian cultivar in the first season.
Bulbing ratio character was affected significantly at all studied ages by the growing seasons, the cultivated genotypes as well as their interactions. The lowest values of bulbing ratio were given in the third growing season in all studied ages except its value after the curing process. Also, results indicate that mean values of bulbing ratio were high at the age of 130 days for all studied genotypes and the lowest values were obtained for c.v (co-efficient of variability) followed by Clone 21. At this age, Clone 21 in the third season gave 0.320 followed insignificantly by Sids 40 and Egaseed 1. Clone 21 and cultivars Sids 40 and Egaseed 1 gave the best results and could be recommended for producing immature garlic baby garlic.