Studying adaptability of Eucalypts clones to water logged and effluent irrigated environments
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Date
2018
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Punjab Agricultural University, Ludhiana
Abstract
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.
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