I

Multiply and release Figure 2.14 Breeding strategy—the clonal selection pathway.

The general breeding objectives in most breeding programs have been: high yield, high quality, resistance to fungal and bacterial pathogens, bold rhizomes, high dry recovery, and low fiber content. Resistance to Pythium (the causal organism for rhizome rot) and Ralstonia solanacearum (bacterial wilt pathogen) has so far not been encountered.

In one such selection program carried out at the IISR, Calicut, 15 cultivars short listed from germplasm evaluation were tested in replicated trials for four years in five locations (Table 2.23). This effort led to the selection of Varada, one of the most important ruling cultivars at present in south and central India (see Figure 2.14).

The data presented in Table 2.23 also demonstrate the influence of genotype-environment interaction. The quality characters of these accessions are given in Table 2.24.

Table 2.23 Yield and dry recovery of ginger at different locations

Accession

Number Mean fresh yield (kg/3 m2 bed) Dry recovery (%)

Table 2.23 Yield and dry recovery of ginger at different locations

Accession

Number Mean fresh yield (kg/3 m2 bed) Dry recovery (%)

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