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The growth of three crisp lettuce varieties from different sowing dates

Published online by Cambridge University Press:  27 March 2009

D. C. E. Wurr  and
Jane R. Fellows
D. C. E. Wurr
Affiliation:
National Vegetable Research Station, Wellesbourne, Warwick, CV35 9EF
Jane R. Fellows
Affiliation:
National Vegetable Research Station, Wellesbourne, Warwick, CV35 9EF
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Summary

Three American crisp lettuce varieties Ithaca, Pennlake and Saladin, formerly called Salinas, were sown on three occasions between April and July in 1980 and 1981 and on six occasions in 1982 between March and July. The rate of emergence of all three varieties increased with mean soil temperature at seed depth. The number of leaves was linearly related to air temperature measured on an accumulated day-degree scale > 0 °C from emergence. Pennlake had the highest rate of leaf production and Saladin the lowest rate. The relative growth rate of Ithaca increased with later sowing, while that of Pennlake declined. The time of maturity of one variety relative to another changed with sowing date but in all three varieties a quadratic curve relating the time of maturity to the time of sowing accounted for a high proportion of the variance in the time of maturity. When the times of sowing and maturity were both expressed on a day-degree scale > 0 °C a linear relationship accounted for more than 98% of the variance in time of maturity. These data provide the basis for planning a continuity programme. Within a variety there was considerable variation in mean head weight between sowings in the same year and different responses of head weight to sowing date from year to year. Using data from all 12 sowings, there was shown to be a significant association between head weight and the mean temperature up to 42 days from emergence but there was no association with radiation. Low mean temperatures (< 12 °C) were associated with lower head weights of Ithaca but higher head weights of Saladin. The opposite was true for mean temperatures greater than 16 °C. The reasons for this are discussed.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 102 , Issue 3 , June 1984 , pp. 733 - 745
Copyright
Copyright © Cambridge University Press 1984

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References

Bassett, M. J. (1975). The role of leaf shape in the inheritance of heading in lettuce (Lactuca saliva L.). Journal of the American Society for Horticultural Science 100, 104–105.CrossRefGoogle Scholar
Bensink, J. (1958). Morphogenetio effects of light intensity and night temperature on the growth of lettuce (Lactuca saliva L.) with special reference to the process of heading. Proceedings Koninklijke nederlandse akademie van Wetenschappen 61, 89–100.Google Scholar
Bensink, J. (1971). On morphogenesis of lettuce leaves in relation to light and temperature. Mededelingen Landbouwhogeschool Wageningen, pp. 71–15.Google Scholar
Caprio, J. M. (1966). A statistical procedure for determining the association between weather and non-measurement biological data. Agricultural Meteorology 3, 55–72.CrossRefGoogle Scholar
Corgan, J. N. & Nakayama, K. N. (1967). Planting dates and varieties for spring lettuce. Agricultural Experiment Station Bulletin 518, New Mexico State University.Google Scholar
Evans, G. C. (1972). The Quantitative Analysis of Plant Growth. Oxford: Blackwell.Google Scholar
Fellows, J. R. & Wurr, D. C. E. (1983). The effect of fluid sowing pre-germinated seed of crisp lettuce on emergence and maturity characteristics. Journal of Agricultural Science, Cambridge 100, 749–751.CrossRefGoogle Scholar
Gray, D. (1978 a). The effect of sowing date on the maturity characteristics of lettuce varieties. Experimental Horticulture 30, 7–14.Google Scholar
Gray, D. (1978 b). The effect of sowing pre-germinated seeds of lettuce (Lactuca saliva) on seedling emergence. Annals of Applied Biology 88, 185–192.CrossRefGoogle Scholar
Gray, D. & Morris, G. E. L. (1978). Seasonal effects on the growth and time to maturity of lettuce. Journal of Agricultural Science, Cambridge 91, 523–529.CrossRefGoogle Scholar
Gray, D., Tuckwell, M. E. & Hargreaves, G. (1979). Timing of harvests in summer lettuce: comparison of methods of scheduling sowings in drilled and transplanted crops. Experimental Horticulture 31, 35–44.Google Scholar
Guttormsen, G. & Moe, R. (1979). Virkning av lys, temperatur og CO2 ved oppal av issalat pa vekst og utvikling etter utplanting. Statens forkingsstasjon Landvik 4890 Grimstad. Melding nr. 55.Google Scholar
Heath, J. E. (1978). The timing of outdoor lettuce and comparisons between direct drilled and transplanted programmes. Acta Horticulturae 72, 179–183.CrossRefGoogle Scholar
Kimball, M. H., Sims, W. L. & Welch, J. E. (1967). Plantclimate analysis for lettuce. California Agriculture 21, no. 4, 2–4.Google Scholar
Krause, W. (1982). Wanted! a good, versatile crisp for Britain. The Grower 28 October 1982, pp. 39–41.Google Scholar
Ministry Of Agriculture, Fisheries and Food (1982). Crisp lettuce, continuity of production. Research and Development Reports Agriculture Service. Field Vegetables 1980, pp. 207–208.Google Scholar
Nothmann, J. (1976). Morphology of head formation of cos lettuce (Lactuca saliva L. cv. Romana). I. The process of hearting. Annals of Botany 40, 1067–1072.CrossRefGoogle Scholar
Ryder, E. J. (1979). ‘Salinas’ lettuce. Hortscience 14, 283–284.CrossRefGoogle Scholar
Ryder, E. J. (1981). Lettuce breeding in the United States: a short history. Proceedings of the Eucarpia Meeting on Leafy Vegetables, Littlehampton 11–14 March 1980, pp. 74–77.Google Scholar
Scaife, M. A. (1973). The early relative growth rates of six lettuce cultivars as affected by temperature. Annals of Applied Biology 74, 119–128.CrossRefGoogle Scholar
Shibutani, S. & Kinoshita, K. (1966). Studies on the ecological adaptation of lettuce. I. Lettuce planting throughout the year and the ecological adaptation. Journal of the Japanese Society of Horticultural Science 35, 387–394.CrossRefGoogle Scholar
Sutcliffe, J. (1977). Plants and temperature. Studies in Biology, no. 86. London: Arnold.Google Scholar
United States Department of Agriculture (1974). Lettuce production in the United States. Agricultural Handbook, no. 221.Google Scholar
Whitfield, W. A. D. (1974). The soils of the National Vegetable Research Station, Wellesbourne. Report of the National Vegetable Research Station for 1973, pp. 21–30.Google Scholar
Wurr, D. C. E. & Fellows, J. R. (1983). The effect of the time of seedling emergence of crisp lettuce on the time of maturity and head weight at maturity. Journal of Horticultural Science 58, 93–98.CrossRefGoogle Scholar
Wurr, D. C. E., Fellows, J. R. & Gray, D. (1982). The effect of seed treatment and seed covering medium on the establishment of crisp lettuce. Journal of Agricultural Science, Cambridge 99, 123–129.CrossRefGoogle Scholar
Wurr, D. C. E., Fellows, J. R. & Morris, G. E. L. (1981). Studies of the hearting of butterhead lettuce: temperature effects. Journal of Horticultural Science 56, 211–218.CrossRefGoogle Scholar
Wurr, D. C. E., Fellows, J. R., Pittam, A. J. & Arnold, G. A. (1983). Crisphead lettuce. Report of the National Vegetable Research Station for 1982, pp. 96–97.Google Scholar