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Effect of diameter and plant spacing on growth of Acrocarpus fraxinifolius under mid hill conditions of Himachal Pradesh

Indian Agricultural Research Journals

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Title Effect of diameter and plant spacing on growth of Acrocarpus fraxinifolius under mid hill conditions of Himachal Pradesh
 
Creator KUMAR, SURESH
GUPTA, N K
MAHAJAN, P K
 
Subject Acrocarpus fraxinifolius, Crown characteristics, dbh, Spacing, Stem volume
 
Description The data were collected from randomly selected trees at three sites with plant spacing, viz. 1.5m ×1.5m, 1.0m × 3.5m and 3.0m × 3.0m (namely S-I, II and III, respectively) of Acrocarpus fraxinifolius (20 years old) in mid hill conditions of Himachal Pradesh. The effect of plant spacing and diameter class on growth characteristics, viz. diameter at breast height (dbh), tree height, bole height, form factor, basal area, stem volume and crown parameters was assessed. Stem volume was positively and highly correlated with all growth parameters and showed highest correlation (0.95) with dbh. The tree height, bole height, basal area, stem volume, crown height, crown width and crown area increased significantly with increase in diameter as well as with spacing. Study regarding fiber length and specific gravity also contributed to growth behaviour of pink cedar at different spacing, where, specific gravity of wood showed an erratic behaviour with slight variation from 0.66 to 0.88, while stem and branch fiber length increased (1.05 to 1.11mm and 0.78 to 0.95mm, respectively) with increasing plant spacing. The overall growth performance of the species was best at 3m × 3m spacing.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2014-02-18
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/38035
 
Source The Indian Journal of Agricultural Sciences; Vol 84, No 2 (2014)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/38035/17073
 
Rights Copyright (c) 2014 The Indian Journal of Agricultural Sciences