13.07.2015 Views

KFRI Research Report No - Kerala Forest Research Institute

KFRI Research Report No - Kerala Forest Research Institute

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2 BHADRACHAL _ _ _ BCM-6 *AM CLONE3 BHADRACHAL _ _ _ BCM-7 *AM CLONE4 BHADRACHAL _ _ _ BCM-10 *AM CLONE5 BHADRACHAL _ _ _ BCM-27 *AM CLONE6 BHADRACHAL _ _ _ BCM-71 *AM CLONE7 BHADRACHAL _ _ _ BCM-83 *AM CLONE8 BHADRACHAL _ _ _ BCM- *AM CLONE1289 BHADRACHAL _ _ _ BCM- *AM CLONE13010 BHADRACHAL _ _ _ BCM- *AM CLONE404* Established in clonal gene bank.3.3.1. Clonal multiplication area (CMA) for eucalyptsOne hectare clonal multiplication area was raised at Kottappara by planting 52clones which produced more than 50 per cent success in rooting of cuttings (table 17).Out of these, 19 clones belonged to E. tereticornis, 18 clones belonged to E.camaldulensis, two clones to E. urophylla and only one clone to E. pellita. Two cloneswere produced from the local Eucalyptus ‘hybrid’ CPTs grown as control forcomparison. Ten clones were from ITC Bhadrachalam, some of which showedadaptability in <strong>Kerala</strong>. The CMA was also used as Clonal Testing Area (CTA); thegrowth and disease resistance of the clones were monitored in the plot every six months.3.3.2. Disease incidence in Eucalypt clonesThe clones assembled in CMA/CTA were examined for occurrence of leaf blightdisease caused by Cylindrocladium species and pink disease caused by Corticiumsalmonicolor during the season of disease prevalence for three years (Table 18). The twoclones produced from local eucalypt ‘hybrid’ trees were severely infected by leaf blightand pink disease. Most of the clones produced from plus trees identified among28

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