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Subject: Forestry × Author: Dhillon, Parmeet Singh × End date: 2018 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Studying adaptability of Eucalypts clones to water logged and effluent irrigated environments
    (Punjab Agricultural University, Ludhiana, 2018) Dhillon, Parmeet Singh; Dhillon, G.P.S.
    The present study entitled ‘Studying adaptability of Eucalypts clones to water logged and effluent irrigated environments’ was carried out at different locations during 2016 to 2018. Nine Eucalyptus clones were studied under effluent irrigated conditions. Survival varied from 95 to 100 per cent and differences among clones were non-significant. Clone C-413 was observed as most promising clone regarding mean height. In terms of DBH, PE-5 attained the highest and PE-8 got the lowest rank. In the second experiment, eight clones were studied under three different soil types. Out of three soil types- S1 (Normal soil), S2 (Salt affected soil) and S3 (Mixed soil), all the clonal plants raised in S1 soil registered maximum plant height, collar diameter and number of leaves and branches. Significantly lowest values were found under S2 (Salt affected soil). Significant differences among clones were observed for all growth traits recorded at various ages. Clone PE-11 showed the maximum plant height, collar diameter and number of leaves; clones C-405 and PE-11 recorded significantly higher values in terms of number of branches. S1 (Normal soil) showed the maximum values for dry shoot and root biomass. Under salt affected conditions, the relative ranking of Eucalyptus clones for stem biomass were PE-11> C-2169 >P-27> P-23> C- 405 > C-2135 > P- 48> C-2013. The third experiment had two clones viz. PE-1 and C-413, were studied under two water table depths (30 cm and 60 cm). The differences between the clones as well as between the water table depths were found to be significant. At 60 cm water table depth, the height and collar diameter were significantly higher. The performance of clone C-413 was found significantly superior to PE-1 in terms of mean height. With respect to collar diameter, non-significant differences were found between the clones. The present study revealed huge variation in Eucalyptus clones for various abiotic stresses.