By Arvind Kumar, Surinder S. Banga, Prabhu Dyal Meena, Priya Ranjan Kumar
Oilseed brassicas are one of the greatest traded agricultural commodities and are grown in round 50 international locations around the globe. applied for either intake and bioenergy use, call for is expanding and this e-book covers the full gamut of oilseed brassicas. starting with an advent after which geared up into sections, it reports genetics and genomics (including breeding, heterosis and choice equipment) and tension administration and demanding pathogens, to supply a whole evaluation of brassica oilseeds
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Extra resources for Brassica Oilseeds : breeding and management
Rapa ecotypes. Of these two, the lotni type is older than tora. Tora were derived from hybridization between B. rapa var. Yellow Sarson and lotni type of B. rapa var. Brown Sarson. B. rapa var. Toria and B. rapa var. Yellow Sarson, are again derivative of B. rapa var. Brown Sarson, the former being the result of selection, the latter being the mutant for quality (Hinata and Prakash, 1984). Two landraces from Utttarakhand in India were found to have extra early maturity (<60 days). rapa var. Toria named as PT-141 and PT-145.
Rapa due to inbreeding depression. Efforts are being made to integrate it with mustard breeding in India. Incompatible types of B. rapa cultivars/populations are genetically heterogeneous and yield improvement could be achieved through mass selection. Effectiveness of recurrent selection to improve various traits has been well documented in several cross-pollinating crops but no systematic attempt has been made to exploit this technique in B. rapa. Recurrent selection in self- pollinated brassicas can be facilitated by genetic male sterility (GMS).
2, respectively. 2 genes were mapped to the B. juncea map described by Pradhan et al. (2003). Their map positions coincided with the two QTLs for erucic acid located on two different linkage groups, one belonging to the A genome and the other belonging to the B genome. The QTL in the A genome explained 60% and the QTL in the B genome explained 38% of the phenotypic variance. Several low erucic acid strains have been commercialized for mustard in India. S. Banga et al. 20 marker-assisted introgression of the low glucosinolate trait into the germplasm of the Indian gene pool.