Informatics Publishing Limited

D. N. Lohani , R. P. Sharma

Abstract

Volume tables of poplar have been prepared by the method of linear regression using a computer. The models used are V=a+b D²H and √V=a+b D. Both equations give highly significant results. Tables for the total wood have been given.

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D. N. Lohani

Abstract

no abstract

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D. N. Lohani , A. P. Kureel

Abstract

The seed and cone production of tapped and untapped trees of chir pine of nine different origins growing in new forest have been studied for seed production, seed weight and germination percentage. The study shows that cone and seed production is not affected adversely by tapping, though indications are that it actually increases in trees tapped continuously for long period. The existence of twist has no effect on seed production. Tapping appears to have some effect on seed size, though the trend is not consistant. Germination percentage, however, is affected in origins which are high yielders.

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