Breeding Tomatoes for All Seasons

J.W. Scott and W.L. George

No 261614, 20th Annual Meeting, October 21-26, 1984, St. Croix, U.S. Virgin Islands from Caribbean Food Crops Society

Abstract: Tomato genotypes have been field screened for fruit setting ability under high temperature (>30° day >21° night) and humidity conditions. Several genotypes have had good fruit set, but Cl l1d from the AVRDC in Taiwan is the most prominent heat tolerant source in current breeding lines. Fruit characters being selected are: large size, firmness, jointless stems, good shape, good color, even ripening, blossom-end smoothness, and no cracks. Disease resistance being incorporated include Fusarium wilt (F. oxysporum F. sp. lycopersici) races 1, 2 and 3, gray leaf spot (Stemphylium solani Weber), bacterial wilt (Pseudomonas solanacearum E. F. Smith), and bacterial spot (Xanthomonas campestris pv. vesicatoria). To further enhance fruit setting, a parthenocarpy gene (pat-2) has been incorporated into heat tolerant genotypes. In 1983, two such lines had yields equal to and greater than Cl l1d under high and low temperature conditions, respectively. This gene combination could result in horticulturally acceptable, multiple disease resistant breeding lines which will set fruit under both high and low temperatures and/or high humidity conditions not conducive to pollination.

Keywords: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies (search for similar items in EconPapers)
Pages: 5
Date: 1984-10-21
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://ageconsearch.umn.edu/record/261614/files/20_67.pdf (application/pdf)
https://ageconsearch.umn.edu/record/261614/files/20_67.pdf?subformat=pdfa (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:ags:cfcs84:261614

DOI: 10.22004/ag.econ.261614

Access Statistics for this paper

More papers in 20th Annual Meeting, October 21-26, 1984, St. Croix, U.S. Virgin Islands from Caribbean Food Crops Society
Bibliographic data for series maintained by AgEcon Search ().