The effect of ethylene on adventitious root formation in mung bean (Vigna radiata) cuttings |
| |
Authors: | J A Robbins M S Reid J L Paul and T L Rost |
| |
Institution: | (1) Department of Environmental Horticulture, University of California at Davis, 95616 Davis, California;(2) Depatment of Botany, University of California at Davis, 95616 Davis, California |
| |
Abstract: | A promotive effect of ethylene on the formation of adventitious roots by mung bean cuttings was demonstrated using a recirculating solution culture system to apply dissolved ethylene. The number of roots increased in proportion to the length of exposure to the gas. Mean root numbers per cutting for a 4-day exposure to ethylene and an air control were 45 and 19, respectively. The tissue was most sensitive to a 24-h ethylene pulse 2–3 days after taking cuttings. Rooting was maximal at a concentration of 13 l 1–1 ethylene. The ethylene treatment inhibited the growth of roots and terminal buds. Application of Ag+, as silver thiosulfate, reversed the effect of ethylene on the two growth responses but had no effect on root numbers. Norbornadiene, another inhibitor of ethylene action, reversed all three ethylene responses. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|