Abstract
Eucalyptus is widely planted genus in many continents due to its rapid growth, several uses and good adaptability to climates and soil types. This study was based on nine Eucalyptus clones/progenies (C-413, C-3020, C-2135, C-7, C-2045, C-411, C-526, C-316 and seedlings) planted at farmers field experiencing seasonal waterlogging. The experiment was planted following randomized block design with plot size of 12 trees replicated four times. The survival of Seedlings, C-7, C-413, C-526 and C-316 was better and varied from 78.3 to 88.3 percent. Significant differences were found for tree height and diameter at age of 2 and 4 year, and volume index at age of 4 year. The tree height and diameter at breast height at 4 year age varied from 5.93 to 6.76 m and 56.4 to 87.6 mm, respectively. The relative ranking on basis of volume index was C-413>C-316>C-411>C-7>C-526. Clones C-413, C-316, C-7 and C-526 were promising based on adaptability and growth traits.
Highlights
The plantation forestry based on fast growing tree species is promoted across the globe to meet the demand of wood based industries
Eight clones (C-413, C-3020, C-2135, C-7, C-2045, C-411, C-526 and C-316) and one seedling lot of eucalyptus were planted following randomized block design having four replications and plot size of 12 trees.The survival was recorded at age of 4 years
Results & Discussion The survival data of trees after 4 year age is given in Fig 1 shows that survival was well keeping in view the harsh conditions
Summary
The plantation forestry based on fast growing tree species is promoted across the globe to meet the demand of wood based industries. Exceed 20 million hectares, in more than 90 countries.[1] Brazil, India and China are the major countries where, Eucalypts are widely grown in commercial plantations to produce raw material for the industry (pulp and paper, charcoal, sawn timber, wood panels) and in small woodlots for the production of firewood and charcoal for domestic uses. It is estimated that out of the total 2.64 lakh hectare land of Muktsar Sahib District of Punjab, about 84,000 hectares area face seasonal or permanent waterlogging conditions.[8] Eucalyptus trees are known to have ability to control rise in water table and reduce waterlogged.[9,10] These studies were based on using seedling based plantations. The study conducted till more than half rotation age, reports the comparative adaptability and productivity potential of commercial Eucalyptus clones under the extremes of moisture conditions
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