You are in:Home/Publications/HETEROSIS AND COMBINING ABILITY IN DURUM WHEAT

Prof. Mohamed El- Sayied Riad Gomaa :: Publications:

Title:
HETEROSIS AND COMBINING ABILITY IN DURUM WHEAT
Authors: El-Hosary, A. A.; M. E. Riad; Nagwa, R. ‘,bd El-Fattah’ And Manal, A. Hassan
Year: 2000
Keywords: Not Available
Journal: Not Available
Volume: Not Available
Issue: Not Available
Pages: Not Available
Publisher: Not Available
Local/International: Local
Paper Link: Not Available
Full paper Mohamed El- Sayied Riad Gomaa_Doc1.pdf
Supplementary materials Not Available
Abstract:

A half dialiel set of crosses Involving six parents L.. Bani Sew.f•1, 2 and 3; Sohag 1, 2 and 3 were evaluated under three spnnkler irrigation every 4, 8 and 12 days in three separate experiments. In each experiment, the parental varieties and their possible crosses were arranged in a randomized complete block design with three replications. Irrigation mean squares were significant for all the studied traits. The effect of sprinkler irrigation every 8 days increased significantly yield and some of Its components. While, the effect of sprinkler Irrigation every 4 days had the highest value for quality characters. Mean squares for genotypes, parents and FI hybrids were significant for all studied traits except parent mean squares for numbr of spikes and semolina percentage. The cross P4 z P5 had the highest grain and biological yields per plant, but without significant superiority over the two crosses P2 x P5 and P3 x P4. The cross P2 z P3 gave the highest values for dry and wet gluten percentages. Mean squares for parents vs. crosses were significant for all traits except straw yield and semolina percentage. Fi means were significantly higher than parental mean for most traits. The variance associated with general and specific combining abilities were significant for all studied traits. Grain yield and wet gluten percentage exhibited low GCAISCA ratio which Is less than unity. While the magnitude of additive and non-additive types of gene action were similar for plant height. On the other hand, high GCAISCA ratio, which exceeded the unity was detected for other traits. The mean squares of Interaction between both types of combining ability and irrigation treatments were significant for all studied traits, indicating that both additive and non-additive types of gene action varied from irrigation treatment to another. me parent P, for dry gluten, ,, P, and P, for protein percentage, and 1000-kernel weight, P4 for pedunci. length, number of spikes, straw and biological yields, and P, for grain yield and some of yield components seemed to b. the best general conibinrs. The most desirable SCA ffects were detected by crosses P1 z P. and P, x P4 for peduncle length, P, x P, for short plant, P, x P, for number of k,rn.lslspike, P, x P, and P, z P, for 1000-kernel weight, P, x P,, P, x P4, P, z P4 and P, xP,forstrawyield,P,xP,,P,xP,.P,zP,P,zP,,P,xP,andP,xP,for grain yieldipl.ant, P, z P,, P, z P, and P, x P, for biological yield, P, z P,, P1 z P., P, z P, and P4 z P, for semolina percentage, P, z P, and P, z P, for dry gluten percentage and P, z P, and P, z P, for wet gluten.

Google ScholarAcdemia.eduResearch GateLinkedinFacebookTwitterGoogle PlusYoutubeWordpressInstagramMendeleyZoteroEvernoteORCIDScopus