The experiment aimed to study the effect of the irrigation water quality on the growth of seedlings and its yield of quinoa plant through some traits i.e., plant height, number of leaves per plant, 1000 grains weight, dry weight per plant , stem diameter, inflorescence length and grain yield per plant. Four treatments were used as follow: T1 (low salinity water, EC 1.25 dS m -1 ), T2 (mix water between low salinity water and agricultural drainage water at ratio 1:1, EC 4 dS m -1 ), T3 (agricultural drainage water, EC 8 dS m -1 ) and T4 (high salinity water, EC 16 dS m -1 ). The treatments application was at the beginning of the plant buds so that the amount of irrigation water up to 75% from field capacity. The significant effects of treatments were found on all tested traits. Also, the results clarified that the rate of chlorophyll ranged between 44.18 (treatment T4) and 53.75 SPAD (treatment T3), water potential of the fourth leaf has ranged from -0.83 to -1.745 MPa for T1 and T3 treatments, respectively, number of leaves per plant was ranged between 26.5 and 28.5 when the plants were irrigated with T4 and T1 irrigation water treatments, respectively. The inflorescence lengths were varied between 8 cm at T4 treatment and 12 cm at T2 treatment. The plant height was ranged between 53.5 cm (T4) and 60.75 cm (T3). The low values of seed yield were recorded at T4 (17.05 g/plant) while the higher values were recorded with T2 treatment (34.08 g/plant). 1000-grain weight values were ranged between 2.97 g at T2 treatment, and 3.49 g at treatment T1.

No abstract

No abstract

No abstract

Currently in Egypt the tendency is to counteract some negative effects caused by the climatic, edaphic changes and political conflicts on the Nile River water. So, the field experiment was carried out to provide a review of differential responses for four cultivars and adaptations under three levels of drought stress during two growing seasons (2012/2013 and 2013/2014). According to drought resistance indices i.e., drought tolerance index, yield injury %, superiority measure and relative performance, Egaseed 1 was the most tolerant cultivar of deficit water while Balady was the most sensitive cultivar. According to the stability analysis, Egaseed 2 followed by Sids 40 were the most stable cultivars while Balady cultivar was the lowest stability for bulb weight per plant under different environments conditions. Five ISSR primers used successfully of four garlic varieties under investigation with 50.83% of mean polymorphism and only three primers (HB08, HB11 and 44B) recorded unique bands. Based on the results of ISSR markers can be used in distinction among the four tested garlic cultivars across any breeding program.