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Abstract
This study was carried out in Laboratories and e Field Experimental Farms of Cell Research Department, Field Crops Res. Inst., Agricultural Research Center (ARC), Egypt and Faculty of Agriculture, Ain Shams University, Shoubra El-Kheima, Egypt, during the period from 2004 to 2007.
The objectives of this study were:
1- To screen for the oil productivity of 28 canola cultivars (Brassica napus L.)
2- To select the highest and lowest oil content cultivars to be hybridized (in two ways) in order to obtain (Fl) plants, followed by selfing to obtain (F2) plants.
3- To study the yield related traits associated with oil content (plant height, cm,, 1st branch height, cm, number of branches, number of pods, weight of straw, g, length of pods, cm, seed weight /plant, g. and seed index, g, (1000 seed weight) and the correlation between them.
4- To develop some molecular markers (RAPD and ISSR) associated with high and low oil content in canola using bulked segregant analysis (BSA).
The main findings of this study could be summarized in the following:
1- Siwa had the highest oil content (it took the first rank) and Ediga was the lowest in oil content (it had the last rank), they were the contrasted parental genotypes according to their oil content.
2- Eight yield related traits to oil content in canola plants of the two cultivars, F1 (Forward and reciprocal) and F2 [Forward (high and low oil content) and reciprocal (high and low oil content)] were studied.
3- Analysis of variance and Duncan’s new multiple range test revealed significant differences among all the studied traits (p≤ 0.05), except for first branch height, pod length and weight of straw traits.