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facts
hydroponic news, tips and trivia
Air and Root Zone Temperatures Influence
Growth and Flowering of Snapdragons
Growth chamber studies using elevated root zone temperatures and greenhouse
studies using two root zone and two night air temperatures were conducted to
determine the effects on growth and flowering of Rainier White and Tampico cutflower snapdragons.
Results:
Chamber-grown snapdragons with the root zone at 86°F had shorter stems and a
lower dry weight than those at 68°F Holding the root zone above 79°F increased
.
time to flower. Greenhouse-grown Tampico and Rainier White snapdragon stems
were longer with increased root zone temperature regardless of night air temperature. Time to flower was reduced an average of six days with increased root zone
temperature and 12 days when the night air was maintained at 68°F
.
This study demonstrated that the effects of relatively low greenhouse temperatures
may be offset by root zone heat.
(Source: www.helpinggrowers.com)
High-Tech Crop Map
AgroAtlas is a new interactive website that shows the geographic distributions of 100 crops; 640
species of crop diseases, pests and weeds; and 560 wild crop relatives growing in Russia and neighboring countries. The impetus behind d WfV