Interaction of 2,4-D, Ethephon and Morphactin on Pepper and Zinnia

• Main Authors: Robbins, M. LeRon, Sherwood, Charles H.
• Format: Text
• Language: English
• Published: UNI ScholarWorks 1973
• Subjects: Pepper; Zinnia; 2.4-D. ~1orphactin. Ethephon. Pollution; Growth Regulators; Carbonic acid
• Online Access: https://scholarworks.uni.edu/pias/vol80/iss2/11; https://scholarworks.uni.edu/context/pias/article/1640/viewcontent/11_Interaction_of_2_4_D__Ethephon_and_Morphactin_on_Pepper_and_Zinnia.pdf

Seedlings of Capsicum frutescens L. and Zinnia elegans L. were treated with 1 and 100 ppm 2.4-dichlorophenoxyacetic acid (2.4-D), 100 and 10,000 ppm (2-Chloroethyl) phosphonic acid (ethephon), and 10 and 1000 ppm methyl ester of 2-chlorofluorenol-9-carbonic acid [morphactin (chlorofluorenol)]. Low concentrations of the materials applied singly had minor effects while morphactin and 2.4-D in combination modified morphological development in various ways. Ethephon did not seem to cause interactive effects when applied with 2.4-D and (or) morphactin. High concentrations of each material applied singly modified plant morphology of pepper and zinnia and inhibited growth of zinnia.