Estimation of genetic parameters of newly introduced tree willow clones in Himachal Pradesh, India

• Published in: Genetika (Beograd) Vol. 43; no. 3; pp. 487 - 501
• Main Authors: Sharma, J.P., Dr Y S Parmar University of Horticulture and Forestry, Solan (H.P.) (India). Department of Tree Improvement and Genetic Resources, Singh, N.B, Sankhyan, H.P, Chaudhary, P, Huse, S.K
• Format: Journal Article
• Language: English
• Published: 2011
• Subjects: CLONE; CLONE INTRODUCTION; CLONES; CORRALATION GANATIQUE; CORRELACIAN GENATICA; Forestry; GAIN GANATIQUE; GENETIC CORRELATION; GENETIC GAIN; HARITABILITA; HEREDABILIDAD; HERITABILITY; HIMACHAL PRADESH; http://www.fao.org/aos/agrovoc#c_1678; http://www.fao.org/aos/agrovoc#c_24417; http://www.fao.org/aos/agrovoc#c_25228; http://www.fao.org/aos/agrovoc#c_29796; http://www.fao.org/aos/agrovoc#c_34003; http://www.fao.org/aos/agrovoc#c_3570; http://www.fao.org/aos/agrovoc#c_3618; http://www.fao.org/aos/agrovoc#c_6754; Hybrids; INTRODUCCIAN DE CLONES; INTRODUCTION DE CLONES; MEJORA GENATICA; SALIX; TABLAS DE CUBICACIAN; TARIF DE CUBAGE; Trees; VOLUME TABLES
• ISSN: 0534-0012; 1820-6069
• DOI: 10.2298/GENSR1103487S

Willows being multipurpose species are well recognized in short rotation forestry world over. 200 clones of different species and hybrids were procured from twenty countries over the period of three years. These were subjected for nursery screening and further 18 promising clones were planted in March, 2006 at university main campus Nauni, Solan, Himachal Pradesh. The five years growth performance was evaluated and clone J-799 has given maximum plant height (19.33 m) which is at par with the clone NZ-1140 (16.33 m) followed by SI-63-007 (14.30 m). As regards with diameter at breast height and volume index, clone J-799 registered first rank followed by NZ-1140 and 131/25 recording 16.50 cm and 0.554 cubic meter, 15.30 cm and 0.386 cubic meter ;15.30cm and 0.368 cubic meter, respectively. Bole straightness was recorded maximum in clone J-795 that is at par with clones J-194, PN-721 and 131/25 followed by clones J-799, SI-63-007, NZ-1140 and SI-64-017. Heritability in broad sense for bole straightness (46.36%) and genetic gain of the volume index (67.95%) was found highest. Genotypic, phenotypic and environment coefficients of variations were recorded maximum (0.995) for volume index character. Genetic correlation coefficient was highest (0.921) between plant height and volume, while phenotypic correlation coefficient was highest between diameter at breast height and volume index. On the basis of five year growth performance, five clones namely J- 799, NZ-1140, 131/25, SI-63-007 and PN-731 are found suitable for lower and mid-hills of Himachal Pradesh.