<abstract xmlns="http://www.w3.org/1999/xhtml"> A clonal trial of Gmelina arborea consisting of seventy clones selected from ten geographical locations in four states of northeast India was evaluated for and 0.37 with a genetic gain of 18.1, 24.6 and 30.1%, respectively. Diameter at breast height (DBH) was determined to be an important trait with maximum genotypic and phenotypic coefficients of variation of 18.6 and 30.4%, respectively. Clones selected from the geographical location of Lanka (Assam) were better performers over other locations. Clone 106 attained the greatest height (517 cm) and DGL (119 mm), whereas Clone 108 performed poorly for all the traits studied. Clone 106 maintained its superiority from an early age of 12 months. Clones 009, 017 and 079 showed an increasing trend for height, and markedly changed rankings from 13th, 15th and 20th positions at the age of 12 months to 2nd, 4th and 15th positions at 24 months of age. The interim assessment of different clones indicated large genetic improvement possibilities in G. arborea. and 0.37 with a genetic gain of 18.1, 24.6 and 30.1%, respectively. Diameter at breast height (DBH) was determined to be an important trait with maximum genotypic and phenotypic coefficients of variation of 18.6 and 30.4%, respectively. Clones selected from the geographical location of Lanka (Assam) were better performers over other locations. Clone 106 attained the greatest height (517 cm) and DGL (119 mm), whereas Clone 108 performed poorly for all the traits studied. Clone 106 maintained its superiority from an early age of 12 months. Clones 009, 017 and 079 showed an increasing trend for height, and markedly changed rankings from 13th, 15th and 20th positions at the age of 12 months to 2nd, 4th and 15th positions at 24 months of age. The interim assessment of different clones indicated large genetic improvement possibilities in G. arborea. </abstract>

A clonal trial of Gmelina arborea consisting of seventy clones selected from ten geographical locations in four states of northeast India was evaluated for and 0.37 with a genetic gain of 18.1, 24.6 and 30.1%, respectively. Diameter at breast height (DBH) was determined to be an important trait with maximum genotypic and phenotypic coefficients of variation of 18.6 and 30.4%, respectively. Clones selected from the geographical location of Lanka (Assam) were better performers over other locations. Clone 106 attained the greatest height (517 cm) and DGL (119 mm), whereas Clone 108 performed poorly for all the traits studied. Clone 106 maintained its superiority from an early age of 12 months. Clones 009, 017 and 079 showed an increasing trend for height, and markedly changed rankings from 13th, 15th and 20th positions at the age of 12 months to 2nd, 4th and 15th positions at 24 months of age. The interim assessment of different clones indicated large genetic improvement possibilities in G. arborea. and 0.37 with a genetic gain of 18.1, 24.6 and 30.1%, respectively. Diameter at breast height (DBH) was determined to be an important trait with maximum genotypic and phenotypic coefficients of variation of 18.6 and 30.4%, respectively. Clones selected from the geographical location of Lanka (Assam) were better performers over other locations. Clone 106 attained the greatest height (517 cm) and DGL (119 mm), whereas Clone 108 performed poorly for all the traits studied. Clone 106 maintained its superiority from an early age of 12 months. Clones 009, 017 and 079 showed an increasing trend for height, and markedly changed rankings from 13th, 15th and 20th positions at the age of 12 months to 2nd, 4th and 15th positions at 24 months of age. The interim assessment of different clones indicated large genetic improvement possibilities in G. arborea.

Growth Performance and Variability in Different Clones of Gmelina arborea (ROXB.)

Silvae Genetica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

A clonal trial of Gmelina arborea consisting of seventy clones selected from ten geographical locations in four states of northeast India was evaluated for and...

Growth Performance and Variability in Different Clones of Gmelina arborea (ROXB.)

Publié en ligne: 14 oct. 2017

Pages: 32 - 36

Reçu: 20 déc. 2005

DOI: https://doi.org/10.1515/sg-2007-0005

Mots clés
Gmelina arborea, clones, heritability, genetic advance, genetic gain

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Growth Performance and Variability in Different Clones of Gmelina arborea (ROXB.)

Publié en ligne: 14 oct. 2017

Pages: 32 - 36

Reçu: 20 déc. 2005

DOI: https://doi.org/10.1515/sg-2007-0005

Mots clésGmelina arborea, clones, heritability, genetic advance, genetic gain

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Mots clés
Gmelina arborea, clones, heritability, genetic advance, genetic gain