Youssef,, W., EL-Borhamy, H. (2004). INHERITANCE OF STRIPE RUST RESISTANCE IN THE WHEAT CULTIVAR TRITICUM SPELTA ALBUM (YR 5). Journal of Plant Production, 29(6), 3243-3251. doi: 10.21608/jpp.2004.238652
W. A. Youssef,; H. S. EL-Borhamy. "INHERITANCE OF STRIPE RUST RESISTANCE IN THE WHEAT CULTIVAR TRITICUM SPELTA ALBUM (YR 5)". Journal of Plant Production, 29, 6, 2004, 3243-3251. doi: 10.21608/jpp.2004.238652
Youssef,, W., EL-Borhamy, H. (2004). 'INHERITANCE OF STRIPE RUST RESISTANCE IN THE WHEAT CULTIVAR TRITICUM SPELTA ALBUM (YR 5)', Journal of Plant Production, 29(6), pp. 3243-3251. doi: 10.21608/jpp.2004.238652
Youssef,, W., EL-Borhamy, H. INHERITANCE OF STRIPE RUST RESISTANCE IN THE WHEAT CULTIVAR TRITICUM SPELTA ALBUM (YR 5). Journal of Plant Production, 2004; 29(6): 3243-3251. doi: 10.21608/jpp.2004.238652
INHERITANCE OF STRIPE RUST RESISTANCE IN THE WHEAT CULTIVAR TRITICUM SPELTA ALBUM (YR 5)
2Wheat Research Sec.,Field Crop Res.lnstit., Agric. Res. Center, Giza, Egypt.
Abstract
Stripe rust of wheat as considered one of the most important diseases in the vast majority of the world area grown to wheat.
In Egypt the first record of epiplytoUc due to such disease was that of 1967 which attacked the local wheat var. Giza 144. On the other hand the last epiplytotic was that of 1995 which affected most of the cultivated vars. and inducing high losses.
The present work aimed to increase the levels of stripe rust resistance by the incorporation of Yr5 (Triticum sp < /em>ilta album) via crossing with our susceptible cultivars viz. Sakha 8, Sids 4,- 5,-6 at Sakha Agric.Res.Stn.
The obtain of results F, plants exhibited high levels of resistance when infected by race E at both seedling and adult stages. This result indicated that resistance is dominant over susceptibility.
The F2 segregation's (3 resistant: 1 susceptible) indicated that resistance in the tested material is govemed by two gene pairs .The third result indicated that the phenotype was not affected by the factor (Yr5).This result reflected the significance of exploiting this factor in the breeding program.
The increasing values or heritability in broad sense in F, and F2 in most crosses confirmed the importance of the additive dominant action consequently, it will be easy to performs the selection at ~asily generations. But ,it is better to make selection at iate generations because of its importance and befitial for breeding programs.
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