Effects of a Higher Afternoon Temperature Followed by a Quick Temperature Drop in the Early Evening on Growth and Fruit Development in Greenhouse Cucumber under Forcing Culture

DOI JASI Web Site Web Site 2 Citations 3 References

Bibliographic Information

Other Title
  • 午後高温・夕方急速降温管理が促成栽培キュウリの生育に及ぼす影響
  • ゴゴ コウオン ・ ユウガタ キュウソクコウオン カンリ ガ ソクセイ サイバイ キュウリ ノ セイイク ニ オヨボス エイキョウ

Search this article

Abstract

<p>The effects of daily air temperature control in greenhouses on forced cultivar cucumber fruit growth and yield were investigated. Two methods of control were compared in two greenhouses. One has been applied practically in Saga Prefecture, Japan: the air temperature in the morning is maintained higher than that in the afternoon. The other has been applied in advanced countries for greenhouse horticulture: the air temperature is maintained higher in the afternoon than in the morning (PMHT) and decreased quickly (quick drop: QD) in the early evening. The latter method shortened the growing period from anthesis to harvest and promoted fruit growth. On the other hand, the growth of vegetative parts was restricted, and the number of harvested fruits decreased, because of the priority given to fruit growth. Thus, there was no difference in the total yield between the two methods. The temperature differences between leaves and fruits in the early evening were observed under PMHT·QD and the conventional method. The temperature differences were greater in PMHT·QD. These suggested that a higher temperature of fruit than leaves after sunset by PMHT·QD is one of the reasons for the promotion of fruit growth rather than the growth of vegetative parts.</p>

Journal

Citations (2)*help

See more

References(3)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top