The response of barley variety Furat9 (tow-rowed), has been noted for three doses of
Gamma radiation (10, 15, and 20 Kr). The objective of the research, to evaluate and
characterize the quantitative and qualitative traits, to identify and calculate
the proportion
of the total and relative changes, to determine the best doses of Gamma rays, and to study
the relationship among the traits in the second generation.
Marfona cultivar were chemical mutagen using 20, 30 and 40 mM of Ethyl Methane
Sulphonate (EMS) for 2, 3, 4 hrs in 2013. was conducted to improve potato (Solanum
tuberosum L.) tolerance to salinity. Plants Marfona mutagen from M5 and unmutagen were
cultured with Spunta and Falouka Cvs in 2015. Plants were later subjected to another
selection pressure, by irrigating them using water containing Nacl between 0-200 mM The
results showed that the gradual increase in Nacl concentrations caused a significant gradual
decreases in most vegetative, yield and its component characteristics. Mutant plants varied
with unmutant for Marfona, Spunta and Falouka in plant height varied from 68 to 41 cm
and number leaves varied from 21 to 12 leaf. and stem diameter varied from 1.349 to 0.370
cm and leaf area varied from 235 to 84 cm2. However, produced tubers number varied
from 9.3 to 2.8 and weight them from 740 to 155 grams and tuber weight from 75.2 to 24.6
grams.
The results also showed variations in the extent of tolerance between studied
treatments to salinity stress where 4T3P2 treatment was the most tolerant.
The results of this study showed the important role of the light
intensity compared with the light exposure time on coloring the new
formed leaves, also this study had showed that the leaves are not
affected by the different temperatures, and also
that these plants showed
a decrease in the different pigment substances in close proportions.
Concerning the amount of proteins, the results have shown main
differences in the protein bands between the mutated and the natural
species, but we have found a decrease in the amount of proteins in the
mutated species than in natural species.
