ISSN:
1573-5087
Keywords:
Chemical hybridizing agent
;
temperature
;
relative humidity
;
irradiance
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Abstract Fenridazon [potassium 1-(p-chlorophenyl)-1,4-dihydro-6-methyl-4-oxopyridazine-3-carboxylate] is a registered chemical hybridizing agent causing male floral sterility and is used for the production of hybrid wheat (Triticum aestivum L.). Foliar absorption and translocation of fenridazon to the floral primordia was decreased at 4°C compared to 24°C. At 24°C, an increase in relative humidity from 40% to 85% increased fenridazon absorption 2.5 and 1.7 times when surfactants A and B, respectively, were used. Because of the increased absorption of fenridazon with increased relative humidity, the amount of fenridazon in the floral primordia was similarly increased 2.2 and 1.5 times for surfactant A and B, respectively. Although the amount of fenridazon in the floral primordia was increased with increased relative humidity, fenridazon translocation rate was not altered by relative humidity. The effects of irradiance on fenridazon absorption were minimal, but its translocation was decreased with low irradiances.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00025202
