Articles
SOURCE/SINK FACTORS AFFECTING RESPONSE OF GREENHOUSE TOMATOES TO CO2 ENRICHMENT
Article number
162_11
Pages
121 – 128
Language
Abstract
Four tomato cultivars, ‘Jumbo’, ‘Laura’, ‘Michigan’ and ‘Perfecto’ were grown in a rockbed-connected greenhouse located in Raleigh, North Carolina fall 1983. The closed loop design of the greenhouse allowed enrichment for 4–10 hours daily up until 20 October and for most of the daylight hours thereafter.
Cultivars were grown in soil beds, ‘layflat’ bags and upright bags.
Greatest increase in total fruit weight with enrichment was seen in the upright bags and in ‘Michigan’, the cultivar with the highest source/sink ratio.
Without enrichment, these treatments had the lowest fruit weight compared to other cultivars and growing systems but differences were less with enrichment.
Fruit numbers were not affected by CO2 enrichment, cultivar, or growing system except for ‘Michigan’ grown in upright bags which had significantly higher fruit numbers when enriched.
Cultivars were grown in soil beds, ‘layflat’ bags and upright bags.
Greatest increase in total fruit weight with enrichment was seen in the upright bags and in ‘Michigan’, the cultivar with the highest source/sink ratio.
Without enrichment, these treatments had the lowest fruit weight compared to other cultivars and growing systems but differences were less with enrichment.
Fruit numbers were not affected by CO2 enrichment, cultivar, or growing system except for ‘Michigan’ grown in upright bags which had significantly higher fruit numbers when enriched.
Publication
Authors
M.M. Peet, D.H. Willits
Keywords
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