夏季の異常天候がブドウの生産量におよぼす影響

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URI http://shark.lib.kagawa-u.ac.jp/kuir/metadata/2662
Title
夏季の異常天候がブドウの生産量におよぼす影響
Title Alternative
Effect of unseasonable weather in summer season on the yield of grapes
File
Description

The region of Kagawa prefecture is generally high temperature and little rainfall in the summer time just after the wet season. But, the weather from July to August in 1980 was greatly unsettled (much rainfall, low temperature and little sunshine). On account of this weather, the maturation of berries in main grape producing district was delayed for 10 or 15 days and the shipment quantity was rather lower than ordinary years. The shipment quantity in the open field culture of Delaware grapes decreased about 35% than that in the previous year and it in next year was about equal with 1980. The shipment quantity in the culture under structure of Neo Muscat grapes decreased about 10%, and about 20% in next year. But, the shipment quantity in the same culture of Hiro Humburg grapes was not decrease and it in next year increased slightly. The shipment quantity of Muscat Bailey A grapes decreased about 20% and it in next year increased remarkably. The half of this vineyard was the out field culture. It is suggested that the delay of maturation and the decrease of shipment quantity in 1980 were mainly due to early summer defoliation by disease in out field culture and the reduction of carbon assimilation by little sunshine in culture under structure.

瀬戸内地域の昭和55年の7?8月の天候ははなはだ不良(多雨…562mm, 低温…平均気温 24.8℃, 少日照…平均日照時間4.3時間)であったので, ブドウの成熟は10?20日遅れ, 出荷量が相当に減少した. 露地栽培のDelawareの出荷量は54年より約35%減少, 56年の出荷量は前年とほぼ同量であった. 施設栽培のNeo Muscatの出荷量は54年より約10%減少, 56年の出荷量は前年より約20%減少した. 施設栽培のHiro Humburgの出荷量は54年とほぼ同量, 56年の出荷量は前年より増加した. Muscat Bailey Aの出荷量は54年より約20%減少, 56年の出荷量は前年より増加した. Muscat Bailey Aは露地栽培と施設栽培がほぼ半々であった. この果実の成熟の遅れと出荷量の減少の主因は, 露地栽培では病害による早期落花, 施設栽培では少日照による炭素同化作用の低下と認められた.

Author
著者 真部 桂
著者(ヨミ) マナベ カツラ
著者(別表記) Manabe Katsura
著者 葦澤 正義
著者(ヨミ) アシザワ マサヨシ
著者(別表記) Ashizawa Masayoshi
Publication Title
香川大学農学部学術報告
Volume
34
Issue
2
Start Page
193
End Page
198
Publisher
香川大学農学部
Published Date
198303
ISSN
0368-5128
NCID
AN00038339
Resource Type
Departmental Bulletin Paper
Language
jpn
Text Version
publisher
Set
香川大学
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