Version 1
: Received: 11 May 2018 / Approved: 11 May 2018 / Online: 11 May 2018 (15:46:43 CEST)
How to cite:
Chauhan, Y.S.; Williams, R. Physiological and Agronomic Strategies to Increase Mungbean Yield in Climatically Variable Environments of Northern Australia. Preprints2018, 2018050182. https://doi.org/10.20944/preprints201805.0182.v1
Chauhan, Y.S.; Williams, R. Physiological and Agronomic Strategies to Increase Mungbean Yield in Climatically Variable Environments of Northern Australia. Preprints 2018, 2018050182. https://doi.org/10.20944/preprints201805.0182.v1
Chauhan, Y.S.; Williams, R. Physiological and Agronomic Strategies to Increase Mungbean Yield in Climatically Variable Environments of Northern Australia. Preprints2018, 2018050182. https://doi.org/10.20944/preprints201805.0182.v1
APA Style
Chauhan, Y.S., & Williams, R. (2018). Physiological and Agronomic Strategies to Increase Mungbean Yield in Climatically Variable Environments of Northern Australia. Preprints. https://doi.org/10.20944/preprints201805.0182.v1
Chicago/Turabian Style
Chauhan, Y.S. and Rex Williams. 2018 "Physiological and Agronomic Strategies to Increase Mungbean Yield in Climatically Variable Environments of Northern Australia" Preprints. https://doi.org/10.20944/preprints201805.0182.v1
Abstract
Mungbean [Vigna radiata (L.) Wilczek] in Australia has been transformed from a niche opportunistic crop into a major summer cropping option for dryland growers in the summer-dominant rainfall regions of Queensland and New South Wales. This transformation followed stepwise genetic improvements in both grain yields and disease resistance. For example, more recent cultivars such as ‘Crystal’, ‘Satin II’ and ‘Jade-AU‘ have provided up to a 20% yield advantage over initial introductions. Improved agronomic management to enable mechanised management and cultivation in narrow (<50 cm) rows has further promised to increase yields. Nevertheless, average yields achieved by growers for their mungbean crops remain less than 1 t/ha, and are much more variable than other broad acre crops. Further increases in yield and crop resilience in mungbean are vital. In this review, opportunities to improve mungbean have been analysed at four key levels including phenology, leaf area development, dry matter accumulation and its partitioning into grain yield. Improving the prediction of phenology in mungbean may provide further scope for genetic improvements that better match crop duration to the characteristics of target environments. There is also scope to improve grain yields by increasing dry matter production through the development of more efficient leaf canopies. This may introduce additional production risks as dry matter production depends on the amount of available water, which varies considerably within and across growing regions in Australia. Improving crop yields by exploiting photo-thermal sensitivities to increase dry matter is likely a less risky strategy for these variable environments. Improved characterisation of growing environments using modelling approaches could also better define and identify the risks of major abiotic constraints. This would assist in optimising breeding and management strategies to increase grain yield and crop resilience in mungbean for the benefit of growers and industry.
Keywords
Vigna radiata (L.) Wilczek; G x E interaction; Improvement; Model; Yield; Yield traits
Subject
Biology and Life Sciences, Agricultural Science and Agronomy
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
