Pea and chickpea production in Australia

Rees, R. O.; Brouwer, J. B.; Mahoney, J; Walton, G H; Brinsmead, R. B.; Knights, E. J.; Beech, DF

doi:10.1007/978-94-011-0798-3_24

Cited by 2 publications

(1 citation statement)

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“…Chickpea (Cicer arietinum) was first domesticated 10,000 to 12,000 years ago in the arid to semi-arid Middle-East and has since been integrated into many cropping systems internationally [1,2]. Australia has become the second-largest exporter of chickpea globally following its introduction in the 1970s [3,4]. The global population is increasing, and with environmental shifts induced by climate change, food security is being challenged.…”

Section: Introductionmentioning

confidence: 99%

Cause of Death: Phytophthora or Flood? Effects of Waterlogging on Phytophthora medicaginis and Resistance of Chickpea (Cicer arietinum)

et al. 2021

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Chickpea production in Australia is constrained by both waterlogging and the root disease Phytophthora root rot (PRR). Soil saturation is an important pre-condition for significant disease development for many soil-borne Phytophthora spp. In wet years, water can pool in low lying areas within a field, resulting in waterlogging, which, in the presence of PRR, can result in a significant yield loss for Australian chickpea varieties. In these circumstances, the specific cause of death is often difficult to discern, as the damage is rapid and the spread of PRR can be explosive in nature. The present study describes the impact of soil waterlogging on oxygen availability and the ability of P. medicaginis to infect chickpea plants. Late waterlogging in combination with PRR reduced the total plant biomass by an average of 94%; however, waterlogging alone accounted for 88% of this loss across three reference genotypes. Additional experiments found that under hypoxic conditions associated with waterlogging, P. medicaganis did not proliferate as determined by zoospore counts and DNA detection using qPCR. Consequently, minimizing waterlogging damage through breeding and agronomic practices should be a key priority for integrated disease management, as waterlogging alone results in plant stunting, yield loss and a reduced resistance to PRR.

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Section: Introductionmentioning

confidence: 99%