Ripening of Tomatoes II. Further Experiments on the Effects of Ethylene |
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| Authors: | J C Fidler J R H Nash-Wortham |
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| Institution: | Covent Garden Laboratory, Department of Scientific and Industrial Research |
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| Abstract: | The greatest growth response of summer cabbage lettuce to irrigation was found to occur when the soil was restored to field capacity about one week before the first harvest; at this time the ground cover was almost complete and the mean fresh weight was increasing rapidly.Irrigation at 3 weeks or at 5½ weeks after sowing gave only a small increase in the mean fresh weight at harvest, but the crop was slightly earlier. Unirrigated lettuce and those irrigated once only, after 3 weeks, were of poor quality and had a significantly lower moisture content than the good-quality lettuce obtained by irrigating 5½ weeks after sowing or later. |
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