Influence of excess soil‐water and n rates on leaf diffusive resistance and storage quality of tomato fruit
作者:
D. L. Karlen,
R. E. Sojka,
M. L. Robbins,
期刊:
Communications in Soil Science and Plant Analysis
(Taylor Available online 1983)
卷期:
Volume 14,
issue 8
页码: 699-708
ISSN:0010-3624
年代: 1983
DOI:10.1080/00103628309367401
出版商: Taylor & Francis Group
关键词: Aeration;stomata;flooding;soft‐fruit syndrome;water logging
数据来源: Taylor
摘要:
Tomatoes (Lycoperscion esculentumMill.) were grown in the greenhouse to determine if excess water and/or N rates are involved with a nonbacterial “soft‐fruit”; problem which has been encountered in the Southeastern Coastal Plain. The treatments included flooding for 0, 5, or 8 days and three rates of N (245, 346, or 627 kg/ha). Flooding induced stomatal closure, hastened fruit maturation, and significantly reduced internal fruit firmness after 8 days of storage at 20°C, but N had no significant effect. Stomata closed approximately 3 days after plants were flooded and were permanently impaired in plants flooded for 8 days. These results suggest that for tomatoes grown on the Norfolk soil association (Typic Paleudults) irrigation applied during fruiting must be carefully managed to prevent excess soil‐water in the root zone which can cause stomatal closure and subsequently influence the storage quality of the fruit.
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