Growth status and site quality of different seed production areas of teak (Tectona grandis L. f) in Karnataka, India
Journal Title: Journal of Applied and Natural Science - Year 2014, Vol 6, Issue 2
Abstract
In the present study 20 SPAs of teak distributed in southern, central and northern parts of Karnataka, India are selected. Phenotypic parameters of standing trees of different SPAs were recorded. Further, seed yield was also recorded and compared with site quality and stand growth parameters. Result showed that there was a greater variation among SPAs for phenotypic growth characters as well as site quality. The overall growth of SPAs of Madikeri zone (Southern region) was found to be superior with respect to tree height, clear bole height and DBH. SPAs belonged to Dandeli (Northern region) recorded more DBH and nearly round stem. SPAs of Yallapur seed zone showed comparatively less growth over Madikeri zone. SPA of Dandeli zone recorded the more tree volume and top height, followed by SPA of Madikeri zone. Considering site quality of different SPAs, all the studied SPAs of Karnataka are growing under relatively poor site conditions. Sixteen out of twenty SPAs, nearly 80% were growing in areas with site quality classes IV and V. Interestingly, none of the studied SPAs belonged to either class I or II. Association study showed that tree height (r=0.403) and clear bole height (r=0.412) showed positive relationship with seed yield. Furthermore, site quality showed a weak positive relationship with seed yield (R2 =0.052) among SPAs indicating poor site quality could be a major factor for low seed yield. It is concluded that SPAs of Madikeri and Dandeli zones performed better in growth and stem form. Therefore, it is suggested to collect quality seeds from these seed zones.
Authors and Affiliations
Rajesh Gunaga, Avinash Kanfade, R. Vasudeva
Keywords
Related Articles
- EP ID EP127091
- DOI 10.31018/jans.v6i2.487
- Views 110
- Downloads 0
Studies on diversity and abundance of parasitoids of Chromatomyia horticola (Goureau) (Agromyzidae: Diptera) in north-western Himalayas, India
Pea leafminer, Chromatomyia horticola (Goureau) is an important pest of many vegetable and ornamental crops. The present investigation was carried out to study the parasitoid diversity of this pest in different agroclima...
Status of tomato Lycopersicon esculentum Mill.cultivation and pesticide use in Golapar area of Uttarakhand, India
Tomato is one of the most widely grown temperate vegetable crops grown in Himalayas and Tarai region of Northern India. Being the high value crop is important in raising the income of the farmers. However, from past few...
Preparation, acceptability and quality evaluation of fermented fish product Mowa shidal prepared from the Mola carplet (Amblypharyngodon mola, Hamilton, 1822)
Mowa shidal was prepared from sundried Amblypharyngodon mola by the traditional fermentation process at ambient temperature, maintaining all possible hygienic conditions. Biochemical, microbiological and sensory qualitie...
Penicillum oxalicum spg1: A novel entomopathogenic fungus isolated from mummified Bemisia tabaci (Gennadius) of cotton
Whitefly has assumed the status of a serious pest of cotton in north India in recent past due to its severe attack on cotton crop. The productivity of cotton crop has fallen substantially from 574 kg ha-1 of lint in the...
Development and storage characteristics of shrimp (Solenocera crassicornis) based snack food using extrusion technology
An attempt was made to develop nutrient rich extruded snacks from lesser utilized protein rich shrimp (Solenocera crassicornis) flour using twin screw extruder. The extruded were in order to fried and packed in to High D...