Celery Production in California

Daugovish, Oleg; Smith, Richard; Cahn, Michael; Koike, Steve; Smith, Hugh B.; Aguiar, J. L. P. de; Quirós, Carlos F.; Cantwell, Marita; Takele, Etaferahu

doi:10.3733/ucanr.7220

Cited by 15 publications

(6 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many celeriac accessions in the USDA and UC Apium germplasm collections appear to have genes that control FoaR2 (Kaur and Epstein, unpublished), which is consistent with the successful development of multiple commercial cultivars with resistance to FoaR2 (Daugovish et al, 2008). PI 181714 is currently listed by the USDA as A. graveolens without a variety designation; we have never observed a var.…”

Section: ) Becausesupporting

confidence: 78%

See 1 more Smart Citation

Apium graveolens PI 181714 is a source of resistance to Fusarium oxysporum f. sp. apii race 4 in celery (A. graveolens var. dulce)

Epstein

Kaur

2022

Plant Breeding

View full text Add to dashboard Cite

Celery has little genetic diversity and is highly susceptible to the new fungal pathogen Fusarium oxysporum f. sp. apii (Foa) race 4. After screening an Apium graveolens germplasm collection for resistance to Foa race 4, we crossed celery cv. 'Challenger', which is Foa race 2‐resistant but Foa race 4‐susceptible and A. graveolens PI 181714, which is Foa races 2‐ and 4‐resistant but non‐celery type. After selfing F1s, we screened the F1S1 for race 4‐resistance and celery‐type and then selfed selected F1S1. Greenhouse and field trials indicate that three selected F1S2 families (76–8‐4, 76–8‐27 and 76–8‐36) are suitable as germplasm for celery breeders for resistance to Foa race 4. A F1S3 76–8–36‐124 is either fixed or nearly so for resistance to Foa races 4 and 2. Furthermore, quantitative PCR indicates that PI 181714 is resistant, rather than tolerant, to Foa races 4 and 2, and that this resistance has been introgressed into F1S3 76–8–36‐124.

show abstract

Section: ) Becausesupporting

confidence: 78%

“…apii ( Foa ) race 2 ( Foa R2) has been adequately controlled by resistant cultivars, for example, cv. 'Challenger' (Daugovish et al, 2008; Subbarao & Elmer, 2002).…”

Section: Introductionmentioning

confidence: 99%

Apium graveolens PI 181714 is a source of resistance to Fusarium oxysporum f. sp. apii race 4 in celery (A. graveolens var. dulce)

Epstein

Kaur

2022

Plant Breeding

View full text Add to dashboard Cite

show abstract

“…In 2021, 777 thousand tonnes of celery were produced in California, 1 primarily in the south and central coasts ( Daugovish et al, 2008 ). If the soil is infested with Foa race 4, the production of both celery, and to a lesser extent coriander, are threatened, particularly if the temperature exceeds 21°C.…”

Section: Discussionmentioning

confidence: 99%

“…graveolens ). In the 1980s, UC Davis researchers introgressed resistance gene(s) to Foa race 2 ( Orton et al, 1984a ) from celeriac into celery, which ultimately resulted in the release of Foa race 2-resistant cultivars ( Daugovish et al, 2008 ) such as Challenger and Sabroso. However, multiple celeriac accessions are resistant to Foa race 2 (Kaur and Epstein, unpublished).…”

Section: Lessons From Fusarium Oxysporum F Sp ...mentioning

confidence: 99%

The Emergence of Fusarium oxysporum f. sp. apii Race 4 and Fusarium oxysporum f. sp. coriandrii Highlights Major Obstacles Facing Agricultural Production in Coastal California in a Warming Climate: A Case Study

Epstein

Kaur²,

Henry³

2022

Front. Plant Sci.

View full text Add to dashboard Cite

Currently, Fusarium oxysporum f. sp. apii (Foa) race 4 in celery and F. oxysporum f. sp. coriandrii (Foci) in coriander have the characteristics of emerging infectious plant diseases in coastal southern California: the pathogens are spreading, yield losses can be severe, and there are currently no economical solutions for their control. Celery, and possibly coriander, production in these regions is are likely to have more severe disease from projected warmer conditions in the historically cool, coastal regions. Experimental evidence shows that Foa race 4 causes much higher disease severity when temperatures exceed 21°C. A phylogenomic analysis indicated that Foa race 4, an older, less virulent, and uncommon Foa race 3, and two Foci are closely related in their conserved genomes. These closely related genotypes are somatically compatible. Foa race 4 can also cause disease in coriander and the two organisms readily form “hetero” conidial anastomosis tubes (CAT), further increasing the likelihood of parasexual recombination and the generation of novel pathotypes. A horizontal chromosome transfer event likely accounts for the difference in host range between Foci versus Foa races 4 and 3 because they differ primarily in one or two accessory chromosomes. How Foa race 4 evolved its hyper-virulence is unknown. Although the accessory chromosomes of Foa races 3 and 4 are highly similar, there is no evidence that Foa race 4 evolved directly from race 3, and races 3 and 4 probably only have a common ancestor. Foa race 2, which is in a different clade within the Fusarium oxysporum species complex (FOSC) than the other Foa, did not contribute to the evolution of race 4, and does not form CATs with Foa race 4; consequently, while inter-isolate CAT formation is genetically less restrictive than somatic compatibility, it might be more restricted between FOSC clades than currently known. Other relatively new F. oxysporum in coastal California include F. oxysporum f. sp. fragariae on strawberry (Fof). Curiously, Fof “yellows-fragariae” isolates also have similar core genomes to Foa races 4 and 3 and Foci, perhaps suggesting that there may be core genome factors in this lineage that favor establishment in these soils.

show abstract

“…Celery is grown year-round in the coastal districts of California with exception of celery-free periods, established to break vector cycles of the western celery mosaic virus. Celery in California is exclusively established in the field from transplants (Daugovish et al 2008). Linuron and prometryn are the principal celery herbicides and are applied posttransplant (Smith 2009).…”

mentioning

confidence: 99%

Evaluation and Economics of a Rotating Cultivator in Bok Choy, Celery, Lettuce, and Radicchio

Fennimore

Smith

Tourte³

et al. 2014

Weed technol.

View full text Add to dashboard Cite

A commercial intrarow rotating cultivator was tested for weed removal and impact on hand-weeding times in bok choy, celery, lettuce, and radicchio. The rotating cultivator was tested as an automated crop thinner and weeder in direct-seeded bok choy and lettuce as an alternative to hand-thinning and -weeding. The rotating cultivator utilized machine-vision guidance to align a rotating disk with the crop plant to be saved and to remove weeds and undesired crop plants. The rotating cultivator was compared to a standard interrow cultivator, which could not remove weeds from the plant line. Main plots were cultivator type, rotating, or standard, and subplots were herbicides: pronamide for lettuce or prometryn for celery. Weed densities, hand-weeding times, crop stand, and yields were monitored. Economic analysis was performed on a subset of the data. The intrarow rotating cultivator was generally more effective than the standard interrow cultivator for reducing weed densities and hand-weeding times. However, the rotating cultivator reduced seeded lettuce stands by 22 to 28% when compared to hand-thinning and standard cultivation, resulting in lower yields and net returns. In transplanted celery, lettuce, and radicchio, the rotating cultivator removed more weeds than the standard cultivator, and reduced stands by just 6 to 9% when compared to the standard cultivator. In transplanted lettuce, the rotating cultivator was more precise and did less damage to the crop. Because transplanted crops were larger than the weeds, they were more easily differentiated using this technology. Net returns were therefore similar between the two cultivators. What is needed for celery and leafy vegetables is an effective intrarow weed removal system that reduces or eliminates the need for hand-weeding yet does not reduce yields. The rotating cultivator was developed for transplanted crops, where it performs adequately, but it cannot be recommended in the seeded crops evaluated.

show abstract

Celery Production in California

Cited by 15 publications

References 0 publications

Apium graveolens PI 181714 is a source of resistance to Fusarium oxysporum f. sp. apii race 4 in celery (A. graveolens var. dulce)

Apium graveolens PI 181714 is a source of resistance to Fusarium oxysporum f. sp. apii race 4 in celery (A. graveolens var. dulce)

The Emergence of Fusarium oxysporum f. sp. apii Race 4 and Fusarium oxysporum f. sp. coriandrii Highlights Major Obstacles Facing Agricultural Production in Coastal California in a Warming Climate: A Case Study

Evaluation and Economics of a Rotating Cultivator in Bok Choy, Celery, Lettuce, and Radicchio

Contact Info

Product

Resources

About