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Barley yellow dwarf virus infection affects physiology, morphology, grain yield and flour pasting properties of wheat

Citation

Choudhury, S and Larkin, P and Meinke, H and Hasanuzzaman, MD and Johnson, P and Zhou, M, Barley yellow dwarf virus infection affects physiology, morphology, grain yield and flour pasting properties of wheat, Crop and Pasture Science, 70, (1) pp. 16-25. ISSN 1836-0947 (2019) [Refereed Article]

DOI: doi:10.1071/CP18364

Abstract

Barley yellow dwarf virus (BYDV) is a phloem-limited virus that is persistently transmitted by aphids and causes significant yield losses in wheat (Triticum aestivum L.). The present study was conducted to investigate the effects of BYDV in wheat on physiological and morphological traits, yield attributes and pasting properties of flour, and to determine any differences for these traits between susceptible and resistant genotypes under BYDV infection. Significant impact on physiological and morphological traits and yield was observed in plants inoculated at the 2-leaf stage (Zadoks scale, Z12), with a greater impact in the three susceptible genotypes than in the resistant genotype. Yield reduction with inoculation at Z12 was 18-49%, and yield reduction with inoculation mid tillering (Z25) was 6-31%. There was a significant reduction in effective tiller number with both inoculation times, but 1000-kernel weight was affected only with early inoculation. Pasting properties were little affected by BYDV infection, with genotype having a larger effect than infection. Grain yield showed negative correlation with tissue-blot immunoassay and visual symptom score, and positive correlation with all gas-exchange parameters, chlorophyll fluorescence, leaf area and biomass weight. The results suggest that stomatal conductance, transpiration rate and chlorophyll fluorescence measurements are suitable for assessment of BYDV infection and for screening BYDV of susceptible and resistant wheat genotypes.

Item Details

Item Type:Refereed Article
Keywords:phloem transport, resistance, TBIA, viruliferous aphids, virus infection, resistance genes, BYDV
Research Division:Agricultural and Veterinary Sciences
Research Group:Crop and Pasture Production
Research Field:Crop and Pasture Improvement (Selection and Breeding)
Objective Division:Plant Production and Plant Primary Products
Objective Group:Winter Grains and Oilseeds
Objective Field:Barley
UTAS Author:Choudhury, S (Mrs Shormin Choudhury)
UTAS Author:Meinke, H (Professor Holger Meinke)
UTAS Author:Hasanuzzaman, MD (Mr Md Hasanuzzaman)
UTAS Author:Johnson, P (Dr Peter Johnson)
UTAS Author:Zhou, M (Professor Meixue Zhou)
ID Code:130649
Year Published:2019
Deposited By:TIA - Research Institute
Deposited On:2019-02-06
Last Modified:2019-02-20
Downloads:0

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