Submit Manuscript

International Journal of Plant Breeding and Genetics

Year: 2011 | Volume: 5 | Issue: 4 | Page No.: 349-357
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Article Trend

Total views 68

Authors

Valiollah Rameeh

Keywords

Research Article

Heterosis and Combining Ability Assessment for Phenological Traits, Plant Height and Grain Yield in WinterxSpring Combinations of Rapeseed Varieties

Valiollah Rameeh
Linextester analysis of two testers of spring type and six lines of winter type rapeseed varieties were used to estimate combining ability and heterosis of phonological traits, plant height and grain yield. Significant mean squares of parents vs. crosses revealed significant heterosis for all the traits but linextester mean square which indicating the non additive genetic effects was only significant for plant height and grain yield. High narrow sense heritability estimates for phonological traits indicating the importance of additive genetic effects for these traits. Significant Specific Combining Ability (SCA) effects of plant height and grain yield were observed for only a few crosses. Most of the crosses had significant over winter and spring parents heterosis for all the traits, therefore heterosis of crosses is more reliable than SCA effects in winterxspring crosses of rapeseed. All of the crosses had significant negative over winter parent heterosis effects for days to flowering, days to end of flowering and plant. Significant positive over spring parent heterosis effect was displayed for days to maturity and plant height in most of the crosses, indicating, in compare to their spring parents most of F1 genotypes were tall and late maturity. Significant positive over winter and spring parents heterosis effects was observed for grain yield in some of crosses which had high performances of these traits.
PDF Fulltext XML References Citation

Related Articles

Bio-diversity Studies on Accessions of African Yam Bean (Sphenostylis stenocarpa)
Heterosis and Combining Ability in a Diallel Cross of Eight Faba Bean (Vicia faba L.) Genotypes
Diallel Analysis Study of Yield and Yield-Related Traits in Rice Genotypes
Diallel Analysis of Seedling Traits in Canola
Effect of High Temperature Stress and Supplemental Irrigation on Flower and Pod Formation in Two Canola (Brassica napus L.) Cultivars at Mediterranean Climate
Studies on Heterosis and Combining Ability of Well Known Blast Resistant Rice Genotypes with High Yielding Varieties of Rice (Oryza sativa L.)

Leave a Comment

Your email address will not be published. Required fields are marked *