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Crop Centre in Print

Please find the latest journal publications from the Crop Centre listed below.

Read our articles in the Vegetable Farmer

For a full list of publications from the School of Life Sciences please visit the Latest Journal Publications

Rosemary Collier publications

J.Applied Entomology aug19Using physical barriers to prevent carrot fly (Psila rosae (Fabricius)) damage in domestic production

Anna Platoni, Ian Waghorn, Stephanie Bird, Joe Perry, Rosemary Collier, Gerard Clover

A field experiment was used to assess the effectiveness of different barriers in protecting garden‐scale carrot production from carrot fly (Psila rosae (Fabricius)) damage. Some of the vertical barriers tested were found to provide a useful method of protecting early season carrots from carrot fly in terms of the percentage of carrots free from damage but, under cumulative pest pressure of several generations of carrot fly, such barriers were found to provide insufficient protection

Journal of Applied Entomology. August 2019

Agricultural Systems aug19Innovation in the UK fresh produce sector: Identifying systemic problems and the move towards systemic facilitation

Menary, Jonathan, Seers, Kate and Collier, Rosemary

Innovation has been promoted to help meet the various challenges faced by the UK fresh produce sector. However, what barriers hinder the development and spread of new ideas in the sector have not been investigated. This article explores the social and economic constraints to innovation by combining the agricultural innovation systems conceptual framework with a functional-structural analysis. The findings show that, whilst the UK fresh produce sector is highly innovative, a number of systemic problems slow or prevent the acquisition and utilisation of knowledge. Retail-led grower groups also provide a means to improve trust between suppliers and customers in the sector and promote new technological trajectories.

Agricultural Systems. August 2019

Mon 09 Sep 2019, 15:19

Aquaporins influence seed dormancy and germination in response to stress

Steven Footitt, Rachel Clewes, Mistianne Feeney, William E. Finch‐Savage, Lorenzo Frigerio

Aquaporins influence water flow in plants, yet little is known of their involvement in the water-driven process of seed germination. We therefore investigated their role in seeds in the laboratory and under field and global warming conditions. We propose that the different responses of the seed tonoplast intrinsic proteins contribute to mechanisms that influence dormancy status and the timing of germination under variable soil conditions.

Plant, Cell & Environment. April 2019

Wed 29 May 2019, 12:09

John Clarkson publications

plant_disease_feb19_75x100.jpgFirst report of Fusarium oxysproum f.sp.lactucae Race 4 causing lettuce wilt in England and Ireland

A. Taylor, A.C. Jackson, and J.P. Clarkson

An outbreak of lettuce wilt, caused by Fusarium oxysporum f. sp. lactucae, was reported in the UK and Ireland for the first time in October 2017 although earlier observations of the symptoms had been made in August 2017 in Lancashire and summer 2016 in Ireland. The pathogen was identified by genomic analysis as race 4 of F. oxysporum f. sp. lactucae (FOL4), a particularly aggressive strain of the fungus with no known treatment or varietal resistance available. FOL race 4 has recently been identified in another area of the UK (Cambridgeshire) and is a serious threat to UK lettuce production. It is also present in the Netherlands and Belgium.

Plant Disease. February 2019

plant_disease_feb19_75x100.jpgFirst report of Fusarium oxysporum and Fusarium redolens causing wilting and yellowing of wild rocket (Diplotaxis tenuifolia) in the UK

A. Taylor, A. Barnes, A.C. Jackson, and J.P. Clarkson

This is the first report of Fusarium wilt of rocket in the UK and to our knowledge the first ever report of F. redolens causing wilt of wild rocket. F. oxysporum has been reported to cause wilt of wild rocket in Italy (Garibaldi et al. 2003) whilst F. redolens is known to cause wilt of chickpea (Jimenez-Fernandez et al. 2011).

Plant Disease. February 2019

Mon 11 Mar 2019, 09:04

Transgressive segregation reveals mechanisms of Arabidopsis immunity to Brassica-infecting races of white rust (Albugo candida)

pnas_jan19.jpgVolkan Cevik, Freddy Boutrot, Wiebke Apel, Alexandre Robert-Seilaniantz, Oliver J. Furzer, Amey Redkar, Baptiste Castel, Paula X. Kover, David C. Prince, Eric B. Holub and Jonathan D. G. Jones

Barley resists wheat-infecting powdery mildew races (and vice versa), and both barley and wheat resist potato late blight. Such “nonhost” resistance could result because the pathogen fails to suppress defense or triggers innate immunity due to failure to evade detection. Albugo candida causes white rust on most Brassicaceae, and we investigated Arabidopsis NHR to Brassica-infecting races. Transgressive segregation for resistance in Arabidopsis recombinant inbred lines revealed genes encoding nucleotide-binding, leucine-rich repeat (NLR) immune receptors. Some of these NLR-encoding genes confer resistance to white rust in Brassica sp. This genetic method thus provides a route to reveal resistance genes for crops, widening the pool from which such genes might be obtained.

PNAS. January 2019

Thu 21 Feb 2019, 09:33

Draft Genome Sequence of an Onion Basal Rot Isolate of Fusarium proliferatum

microbiology_resource_announcements.jpgArmitage AD, Taylor A, Hulin MT, Jackson AC, Harrison RJ, Clarkson JP

Fusarium proliferatum is a component of the onion basal rot disease complex. We present an annotated F. proliferatum draft genome sequence, totaling 45.8 Mb in size, assembled into 597 contigs, with a predicted 15,418 genes. The genome contains 58 secondary metabolite clusters and homologs of the Fusarium oxysporum effector SIX2.

Microbiology Resource Announcements. January 2019

Thu 21 Feb 2019, 09:25

Adaptive significance of functional germination traits in crop wild relatives of Brassica

ag__forest_meteorology.jpgE Castillo-Lorenzo, WE Finch-Savage, CE Seal, HW Pritchard

Functional germination traits contribute to both niche competitiveness and crop yield outcomes. However, there is little understanding of the adaptive significance of the germination thermal- and hydro-parameters in crop wild relatives, yet these species are anticipated to be the source of adaptive traits for future agriculture. Seeds of 10 seed lots of Brassica species, sub-species and inbred lines from across Europe, North Africa and the Middle East were subjected to a range of temperature and water potential conditions. Our results show that the selection of the crop B. oleracea for fastest germination under irrigated conditions likely limits the capacity of the current genepool to cope with erratic periods of drought predicted in future European climates.

Agricultural and Forest Meteorology. November 2018

Tue 08 Jan 2019, 08:30

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