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High precision temperature controlling AGPase in wheat affecting yield and quality traits

Batra, R. and Kumar, P. and Jangra, M.R. and Passricha, N. and Sikka, V.K. (2017) High precision temperature controlling AGPase in wheat affecting yield and quality traits. Cereal Research Communications, 45 (4). pp. 610-620. ISSN 0133-3720

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Abstract

Adenosine diphosphate glucose pyrophosphorylase (AGPase) is the rate limiting enzyme of starch biosynthesis that directly affects the wheat productivity. AGPase and grain growth rate (GGR) discerned to be following strict temperature regimen in wheat disomic chromosome substitution (DCS) lines. The first half of grain filling period had chromosome 1B and 2D as prominent players, whereas second half was mainly controlled by chromosomes 6A and 5B. Chromosome 2D had major contribution towards yield in a specific temperature range of 23 ± 1.5 °C during initial stages of grain filling which can serve as an effective early screening tool for terminal heat tolerance in wheat. Chromosome 2D with highest amylose content can also be utilized to produce low digestibility flour. Grain yield was found to be significantly associated with spikes/plant, grains/spike, grain weight/spike and plant biomass. Further, path analysis indicated that though grains/spike had less direct effect on grain yield but its indirect impact on grain yield via AGPase-21 activity was high.

Item Type: Article
Subjects: S Agriculture / mezőgazdaság > S1 Agriculture (General) / mezőgazdaság általában
Depositing User: Ágnes Sallai
Date Deposited: 20 Nov 2017 13:51
Last Modified: 31 Dec 2018 00:17
URI: http://real.mtak.hu/id/eprint/70010

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