Mohit Gera ¹, Ankur Awadhiya ¹, Neelu Gera ²

Affiliations
1 Indira Gandhi National Forest Academy, FRI Campus, Dehradun, 248006, IN
2 Silviculture Division, FRI Dehradun, IN

Abstract

Around 55 provenances / seed sources of Dalbergia sissoo Roxb. were collected from vast expanses of India and Nepal as part of National Provenance Trial by ICFRE in 1994 - 1995, and 40 seed sources were planted in Basantar Bela, Samba district of Jammu region of J&K in July 1995 in a randomized complete block design. The seed sources have been evaluated during January 2010 for survival and growth parameters. It was observed that the parameters of diameter, height and volume over bark varied significantly with regard to seed sources, but not with regard to replications. The wide variations observed in the trial cannot be explained unambiguously from climatic differences between the locations of these seed sources alone, as evidenced by correlation studies. It was further established that seeds from Mirzapur, Nepal and Pratapgarh manifested distinct advantages concerning the survival, height, diameter and volumes of the stems, thus demonstrating their utility in bolstering mass plantation in the north western Indian region and elsewhere. Further studies appear obligatory to apprehend this indication.

Keywords

Dalbergia sissoo, Provenance, Seed Source.

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Mohit Gera ¹, Ankur Awadhiya ¹, Neelu Gera ²

Affiliations
1 Indira Gandhi National Forest Academy, New Forest, Dehradun, Uttarakhand, IN
2 Silviculture Division, Forest Research Institute, Dehradun, Uttarakhand, IN

Abstract

Twenty eight Candidate Plus Trees of Acacia catechu were selected from within different locations of Jammu region based on their superior phenotypic characteristics. Their progeny, in the form of seeds were collected, and the seedlings were raised and planted in four replications in the year 1999 in Basanter Bela, Samba district of Jammu region. Following maintenance, these plants were analysed in the year 2011 for survival and growth characteristics of height, girth at breast height and crown area. It was observed that the differences in progeny characteristics observed between the families were highly significant. The growth parameters of height, girth at breast height and crown area were correlated to a high degree, but the degree of correlation with the parents was observed to be not significant. The maximum values of mean height, mean girth at breast height and mean crown area were 121.11%, 136.41% and 161.57% of the minimum values, respectively, as observed among the families. Based on the field observations three families i.e., 2, 11 and 14, on account of the maximum values of mean height, mean girth at breast height and mean crown area are recommended for future plantation purposes and further tree improvement work.

Keywords

Acacia catechu, Candidate Plus Tree, Variability, Progeny Trial.

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