Genotypic correlation, regression and path analysis of oil and seed yield in canola cultivars (Brassica napus L.)
Journal Title: International Journal of Farming and Allied Sciences - Year 2013, Vol 2, Issue 22
Abstract
In order to assess the relationship among seed and oil yield as well as determine the best indirect selection criteria to improve the seed and oil yield in canola cultivars, an experiment was conducted in the layout randomized complete block design with three replications. Genotypic correlation analysis revealed strong relation of majority of the studied traits with oil and seed yield. Amongst, grain filling rate had highly significant and positive genotypic correlation with oil and seed yield. Step-wise regression of seed and oil yield revealed that 99% of total variation exists in oil yield accounted for by the traits grain filling rate (89%), grain filling duration (6%) and oil percent (3%) while grain filling rate (94%) and grain filling duration (5%) totally 99% for seed yield. Path analysis for seed and oil yield designed high efficiency of the traits grain filling rate and grain filling duration as indirect selection criteria for genetic improvement of oil and seed yield in canola cultivars especially in early generations of breeding programs. In conclusion, high genetic variation was observed for all the traits demonstrated possibility of selection of superior genotypes for oil and seed yield in canola. Also, selection for higher amount of grain filling rate could be promised to choice the best canola genotypes. These genotypes must be mature later than others which bearing higher seed yield resulting oil yield.
Authors and Affiliations
Sadegh Abdellahi, Ahmad Reza Golparvar, Bahram Majd Nasiri, Ali Soleymani
Keywords
Related Articles
- EP ID EP32429
- DOI -
- Views 287
- Downloads 0
The optimum condition under light and Media for Seed germination of Withania coagulans
Withania coagulans, a traditional medicine plant in Southern Iran has become relatively scarce due to over collection. Natural propagation of this species is by seed, but to improve poor germination and promote the ger...
The Effect of silver nanoparticle on lentil Seed Germination under drought stress
A study was conducted to evaluate the effect s of silver nanoparticles for ameliorating negative effects of drought stress on germination and growth of lentil seeds. In order to investigate drought stress on lentil ger...
Evaluation of seed dormancy breaking methods in Astragalus parrowianus
Seed dormancy is the most important limiting factor in domesticating plants.Therefore, a main research priority is to break seed dormancy for the aforementioned purpose. An experiment was performed to study the effects...
Efficacy Of Different Insecticides Against Gram Pod Borer On Chickpea (Cicer arietinum L.)
The insecticides Proclaim, Radiant and Jatara were applied thrice at the interval of 15 and 20 days of second and third spray, respectively. The results showed that all three insecticides performed well in reducing pes...
Determining relationships among seed yield and some yield components using correlation, regression and path analysis in canola (Brassica napus L.)
Determination of the traits affects seed yield is very efficient in breeding of this trait in canola (Brassica napus L.). Seed yield is the quantitative trait that direct selection per se isn’t effective for improvemen...