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Temperature and humidity control in growing of greenhouse muskmelon

Abstract

At the Shizuoka Agricultural Experiment Station, a control test of muskmelon was carried out wherein the controlled night temperature was automatically lowered by 2 or 4 /sup 0/C from the present temperature when the sunlight level was below the standard, and the humidity was controlled either individually or in combination with the temperature. Concerning the influence of temperature, no bad effect was observed in the constant early half of midnight temperature (18 /sup 0/C) section which was tested from the viewpoint of energy saving. For the test range of 22 - 18 /sup 0/C (winter growing) and 24 - 18 /sup 0/C (autumn growing), there was no significant difference on the fruit weight and shape;but the content of suger was found better in the complex modified temperature section of 22 - 18 /sup 0/C (winter growing) and 24 - 22 /sup 0/C (autumn growing). As for the humidity-added section, the fruit grew bigger, but the sugar content was significantly reduced. Optimal target value of control was estimated at 80 +-5 % daytime and 90 % night-time. (2 figs, 11 tabs, 10 refs
Publication Date:
Dec 25, 1986
Product Type:
Journal Article
Reference Number:
NEDO-86-950015; EDB-88-090612
Resource Relation:
Journal Name: Shizuoka-Ken Kogyogijutsu Cent. Kenkyu Hokoku; (Japan); Journal Volume: 31
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; GREENHOUSES; HUMIDITY CONTROL; TEMPERATURE CONTROL; FRUITS; HORTICULTURE; AGRICULTURE; BUILDINGS; CONTROL; FOOD; INDUSTRY; 320106* - Energy Conservation, Consumption, & Utilization- Building Equipment- (1987-); 320105 - Energy Conservation, Consumption, & Utilization- Building Services- (1987-)
OSTI ID:
5315638
Research Organizations:
Shizuoka-Agricultural Experiment Station, Shizuoka, Japan
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: CODEN: SKGHE
Submitting Site:
NEDO
Size:
Pages: 47-54
Announcement Date:
Feb 01, 1988

Citation Formats

Suzuki, Tetsuji, Nakamura, shin'ichi, Toda, Mikihiko, and Ozawa, Akihito. Temperature and humidity control in growing of greenhouse muskmelon. Japan: N. p., 1986. Web.
Suzuki, Tetsuji, Nakamura, shin'ichi, Toda, Mikihiko, & Ozawa, Akihito. Temperature and humidity control in growing of greenhouse muskmelon. Japan.
Suzuki, Tetsuji, Nakamura, shin'ichi, Toda, Mikihiko, and Ozawa, Akihito. 1986. "Temperature and humidity control in growing of greenhouse muskmelon." Japan.
@misc{etde_5315638,
title = {Temperature and humidity control in growing of greenhouse muskmelon}
author = {Suzuki, Tetsuji, Nakamura, shin'ichi, Toda, Mikihiko, and Ozawa, Akihito}
abstractNote = {At the Shizuoka Agricultural Experiment Station, a control test of muskmelon was carried out wherein the controlled night temperature was automatically lowered by 2 or 4 /sup 0/C from the present temperature when the sunlight level was below the standard, and the humidity was controlled either individually or in combination with the temperature. Concerning the influence of temperature, no bad effect was observed in the constant early half of midnight temperature (18 /sup 0/C) section which was tested from the viewpoint of energy saving. For the test range of 22 - 18 /sup 0/C (winter growing) and 24 - 18 /sup 0/C (autumn growing), there was no significant difference on the fruit weight and shape;but the content of suger was found better in the complex modified temperature section of 22 - 18 /sup 0/C (winter growing) and 24 - 22 /sup 0/C (autumn growing). As for the humidity-added section, the fruit grew bigger, but the sugar content was significantly reduced. Optimal target value of control was estimated at 80 +-5 % daytime and 90 % night-time. (2 figs, 11 tabs, 10 refs}
journal = []
volume = {31}
journal type = {AC}
place = {Japan}
year = {1986}
month = {Dec}
}