Partitioning and utilization of carbon and nitrogen for dry matter and protein production in chickpea (Cicer arietinum L.)

Hooda, R. S. ; Rao, A. S. ; Luthra, Y. P. ; Sheoran, I. S. ; Singh, Randhir (1986) Partitioning and utilization of carbon and nitrogen for dry matter and protein production in chickpea (Cicer arietinum L.) Journal of Experimental Botany, 37 (10). pp. 1492-1502. ISSN 0022-0957

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Official URL: http://jxb.oxfordjournals.org/content/37/10/1492.s...

Related URL: http://dx.doi.org/10.1093/jxb/37.10.1492

Abstract

The partitioning of N and utilization of C in various processes in chickpea (Cicer arielinum L.) was studied at 10 d intervals from 35 to 135 d after sowing (DAS). Dry matter, C and N content of the plant increased throughout the study period. The maximum amounts of C and N were fixed during the flowering and early fruiting phase (75-115 DAS) and the minimum during the seed filling phase (115-135 DAS). Efficiency of nitrogen fixation in relation to net C utilization and respiratory output of the whole plant, nodules and nodulated root, varied widely, but was maximum during 75-115 DAS. The crop experienced severe respiratory losses, particularly during the vegetative phase, when 83% of the total fixed C was lost in respiration. The crop produced 54.6 g of glucose units, 2.36 g of seed dry matter and 495 mg of seed protein. Possible reasons for the poor efficiency of chickpea, in terms of photosynthate utilization for dry matter and protein production are discussed.

Item Type:Article
Source:Copyright of this article belongs to Oxford University Press.
Keywords:Cicer Arietinum; C; N; Economy
ID Code:50064
Deposited On:21 Jul 2011 14:40
Last Modified:21 Jul 2011 14:40

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