Community Research and Development Information Service - CORDIS

Abstract

THESE WORKSHOP PROCEEDINGS DISCUSS THE CROP PRODUCTION IN ENERGY SAVING GREENHOUSES AND THE EFFECTS OF HIGH HUMIDITY. THIS IS OFTEN HIGHER THAN IN CONVENTIONAL ONES, AND CONTRIBUTES TO THE LOSS OF YIELD AND QUALITY OF THESE CROPS. THE MOST RELIABLE SYSTEM FOR MEASURING HUMIDITY IS THE USE OF ASPIRATED WET AND DRY SENSORS. HUMIDITY SHOULD BE MEASURED IN UNITS OF VAPOUR PRESSURE, PREFERABLY USING THE PASCAL. MANY RESPONSES TO HIGH HUMIDITY CAN BE RELATED TO LACK OF CALCIUM IN YOUNG EXPANDING TISSUES. WITH TISSUES LIKE FRUIT WHICH MIGHT TRANSPIRE SLOWLY, ROOT PRESSURE MAY BE RESPONSIBLE FOR MOVING CALCIUM TO THEM. MORE ATTENTION IS NEEDED TO SOLVE THE PROBLEM OF GETTING CALCIUM INTO YOUNG TISSUES. ALSO, ECONOMICALLY VIABLE METHODS OF ENCOURAGING EVAPORATION FROM YOUNG TISSUES IN HUMID ENVIRONMENTS SHOULD BE DEVELOPED.

Additional information

Authors: COCKSHULL K E INSTITUTE OF HORTICULTURAL RESEARCH, LITTLEHAMPTON, UK, INSTITUTE OF HORTICULTURAL RESEARCH, LITTLEHAMPTON, UK
Bibliographic Reference: EUR 11261 EN (1988) FS, PP 132, ECU 11.25, AVAILABILITY: EUROFFICE, LUXEMBOURG, BP 1003, GDL
Availability: Can be ordered online
Record Number: 1989126207100 / Last updated on: 1989-04-01
Category: PUBLICATION
Available languages: en