دور منظمات النمو النباتية في استحثاث الكالس و أخلاف نبيتات تركيبين وراثيين من الجت

الملخص EN

An experiment was conducted at the central lab of Graduate studies - College of Agriculture, University of Baghdad during 2015-2016.

The objective was to study the effect of growth regulator on inducing callus from embryos of two alfalfa cultivars (PAC-78001 and local) variety by tissue culture technique using factorial experiments according to CRD.

Seeds sterilized by NaOCl at 4.5% for 15 minutes, then, cultured on MS media free of growth regulators to embryo induced.

The embryos were cultured on MS media at different concentrations of 2,4-D (0, 1, 2, 3 and 4) mg Li-1.

Induced callus from embryos was cultured on MS media supplementing with Kin.

at 0, 0.25, 0.50, 0.75 and 1 mg Li-1 to determine the best concentration.

The results showed that best concentration of 2,4-D and Kin were 2 and 0.5 mg L-1 respectively which gave highest callus fresh weight and callus dry weight (204.65 and 21.50) mg Li-1, respectively.

BA at 2 mg Li-1 gave the highest plantlets reproducing from callus amounted 5.5 vegetative growth tube-1.