Morphological variations in teak (Tectona grandis L. f.) clones

Abstract

The investigation on “Morphological variations in Teak (Tectona grandis L. f.) clones” was carried out at Rajpipla Silviculture Forest Division, Rajpipla, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, Navsari (Gujarat). The experiment comprised of 15 clones viz., C1-Bandhpada (North Dangs), C2-Chikhli (South Dangs), C3-Nilambo (Dungarda), C4-African (Dungarda), C5-Satkhasi (Vyara), C6-Khalta (Bariya), C7-Achhala (Godhra), C8-Kevadi (Chotaudepur), C9-Raighadh (Sabarkantha North), C10-Danta (Banaskantha), C11-Vanaj (South Sabarkantha), C12-Dankiwadu (Gir West), C13-Bhavnath (Junagadh), C14-Develvel (Gir East) and C15-Khatam (Rajpipla East). This experiment was laid out in Randomized Block Design (RBD) comprising of fifteen clones and three replications. Significantly maximum plant height, diameter at breast height and 100 seed weight was noted in clone C7 - Achhala (Godhra); leaf length in the clone C8 - Kevadi (Chotaudepur); leaf width in the clone C13 - Bhavnath (Junagadh); leaf area in the clone C14 - Develvel (Gir East); petiole length in the clone C15 - Khatam (Rajpipla East) and seed yield per plant C13 - Bhavnath (Junagadh). The genotypic correlation coefficients were in general, higher than the corresponding phenotypic and environmental indicating strong inherent association between the characters. Seed yield had highly significant positive correlation with leaf width (rg= 0.3315). Whereas, seed yield had highly significant negative correlation with petiole length (rg= -0.4024) and diameter at breast height (rg= -0.3078). The rest of the traits showed non-significant positive or negative correlation. Path coefficient analysis indicated that the direct effect of diameter at breast height and petiole length on seed yield was of very high magnitude followed by leaf width.