Carbon translocation accounting for yield variation in peanut (Arachis hypogaea L)

Vinod Prabhu, K. ; Arunachalam, V. (1991) Carbon translocation accounting for yield variation in peanut (Arachis hypogaea L) Journal of Oilseeds Research, 8 . pp. 199-204. ISSN 0970-2776

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Abstract

Nine lines of peanut (Arachis hypogaea L.) including four high yielders, one non-nodulating line and its progenitor parents, one high nitrogen fixer and a national check, were studied in situ for 14c translocation to various plant's parts- leaves, stem, root nodule, shell and kernel - at peg development and harvest stages. Of the 68% of observed yield variation accounted for by the carbon translocation to roots, nodules, shells and kernels at harvest, 65% was accounted by the former two traits alone. The relative increase in translocation to roots, nodules, shells and kernels at harvest, 65% was accounted by the former two traits alone. The relative increase in translocation to roots and nodules at harvest over peg development stage directly influenced pod yields. This was substantiated by the nature and magnitude of correlations between pod yield (PY) and % 14c at peg development (PD) and harvest (HS) stages. There was no correlation between PY and % 14c in (root + nodule) at PD; but that correlation at HS was positive and significant. The observed differences in 14c partitioning between the high and low yielders suggest partitioning of carbon to reproductive parts as an additional economic selection criterion for improving productivity in peanuts.

Item Type:Article
Source:Copyright of this article belongs to Indian Society of Oilseeds Research.
Keywords:Peanut; Yield Potential; Selection; Assimilate Partitioning; Carbon Translocation
ID Code:89392
Deposited On:27 Apr 2012 10:32
Last Modified:19 May 2016 03:57

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