Evaluation of some wheat genotypes and its hybrids to drought tolerance
Ebaa Mohamed Ali Khalifa;
Abstract
The present study was carried out during 200112002,
2002/2003 and 2003/2004 seasons at the Experimental Farm of Faculty of Agriculture, to obtain information on the nature of the genetic system governing the inheritance of earliness, yield and its attributes in wheat under favorable and moisture stressed conditions.
This study was conducted under two irrigation regimes (favorable and stress). 15 F1's obtained from a half diallel crossing system of six bread wheat parents that varied in their days to heading and yielding ability were genetically analysed to detect the type of gene action governing the heading date, yield and its attributes. A Randomized Complete Block Design with three replications was adopted for each experiment.
Results obtained will be summarized as follows:
1 - The mean squares due to irrigation regimes were significant for all traits, indicating the presence of significant differences between the two regimes. Mean squares due to genotypes, as well as components (i.e. parents and crosses) reached the significance level for all studied traits at both conditions and in the combined analysis.
2 - Stress condition reduced number of days to heading, plant
height, spike length, yield and its components as compared with non-stress condition.
2002/2003 and 2003/2004 seasons at the Experimental Farm of Faculty of Agriculture, to obtain information on the nature of the genetic system governing the inheritance of earliness, yield and its attributes in wheat under favorable and moisture stressed conditions.
This study was conducted under two irrigation regimes (favorable and stress). 15 F1's obtained from a half diallel crossing system of six bread wheat parents that varied in their days to heading and yielding ability were genetically analysed to detect the type of gene action governing the heading date, yield and its attributes. A Randomized Complete Block Design with three replications was adopted for each experiment.
Results obtained will be summarized as follows:
1 - The mean squares due to irrigation regimes were significant for all traits, indicating the presence of significant differences between the two regimes. Mean squares due to genotypes, as well as components (i.e. parents and crosses) reached the significance level for all studied traits at both conditions and in the combined analysis.
2 - Stress condition reduced number of days to heading, plant
height, spike length, yield and its components as compared with non-stress condition.
Other data
| Title | Evaluation of some wheat genotypes and its hybrids to drought tolerance | Other Titles | تقييم بعض التراكيب الوراثية وهجنها لتحمل الجفاف فى محصول القمح | Authors | Ebaa Mohamed Ali Khalifa | Issue Date | 2006 |
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