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Inheritance pattern and genetic correlations among growth and wood quality traits in Para rubber tree (Hevea brasiliensis) and implications for breeding (Record no. 61402)

MARC details
000 -LEADER
fixed length control field	02307nam a2200193Ia 4500
100 ## - MAIN ENTRY--AUTHOR NAME
Personal name	Narayanan C
245 #0 - TITLE STATEMENT
Title	Inheritance pattern and genetic correlations among growth and wood quality traits in Para rubber tree (Hevea brasiliensis) and implications for breeding
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Name of publisher	Tree Genetics & Genomes
Year of publication	2018
520 ## - SUMMARY, ETC.
Summary, etc	Inheritance pattern of wood traits viz. specific gravity, fibre dimensions and fibre-derived biometrical indices and their interactions among themselves and with that of growth are reported in Hevea brasiliensis. Girth (h2 = -0.02 +_ 0.44 to h2 = 0.35 +_ 0.24) showed moderate genetic control. Among wood traits, specific gravity (h2 = 0.15+_0.31 to h2 = 0.33+_0.28) was found to be under moderate genetic control. Fibre traits viz., fibre length (h2 = -0.26 +_ 0.30 to h2 = 0.50 +_ 0.34), fibre diameter (h2 = 0.19 +_ 0.49 to h2 = 0.70 +_ 0.11), fibre lumen diameter (h2 = -0.18 +_ 0.35 to h2 = 0.56 +_ 0.47) and fibre wall thickness (h2 = -5.17 +_ 5.26 to h2 = 0.50 +_ 0.50) were under moderate to strong genetic control. Among fibre-derived indices, flexibility coefficient (h2 = 0.48 +_ 0.21 to h2 = 0.89 +_ 0.29) showed moderate to very strong genetic control. The Runkel ratio (h2 = -0.40 +_ 0.27 to h2 = 0.42 +_ 0.29) and slenderness ratio (h2 = -0.36 +_ 0.29 to h2 = 0.43 +_ 0.28) showed moderate gene. Girth showed very strong positive genetic correlation with fibre wall thickness and strong positive correlation with fibre width indicating scope of indirect selection potential for these traits. Wood specific gravity was not correlated with either girth or fibre traits. Hence, it would be possible to concomitantly improve growth and fibre traits without adversely affecting wood specific gravity. Moderate to very high estimates of heritability for fibre traits, girth and specific gravity indicated that considerable genetic gain can be realised for these traits. Implications of the above findings in genetic improvement of wood in Hevea are discussed.
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term	Genetic correlation
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term	Genetic improvement
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term	Hevea brasiliensis
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term	Inheritance
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term	Wood quality
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name	Mydin K.K
856 ## - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier	Online copy doi.org/10.1007/s11295-018-1278-5
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type	Journals

Holdings
Withdrawn status	Lost status	Damaged status	Not for loan	Home library	Current library	Shelving location	Date acquired	Serial Enumeration / chronology	Koha item type
			Journals	RRII Library	RRII Library	Botany	01/01/2019	Volume 14, Issue ..	Journals