Year: 1998
Type: article
Abstract: The minimum applied ethylene concentrations which have an influence on seedling growth were made clear in six epigeal leguminous species. The lowest ethylene concentration which inhibited hypocotyl elongation (LCe) significantly at 5% level ranged from 0.04 ppm (mung bean) to 0.16 ppm (soybean). On the other hand, the lowest concentration which increased hypocotyl thickness (LCt) significantly at 5% level ranged from 0.04 pprrl (mung bean) to 0.38 ppm (soybean). The response of seedling growth to ethylene seemed to be classified into 3 types: 1) LCt was lower than LCe in kidney bean and hyacinth bean, 2) LCt was similar to LCe in mung bean, black gram and cowpea, and 3) LCt vvas higher than LCe in soybean. Neither LCe nor LCt correlated with seed weight or hypocotyl thickness. However, each LCe and LCt correlated positively with the endogenous ethylene production of a seedling (r=0.841 and 0.869, n=9, P< 0.01). The results suggested that, in the seedlings, the high endogenous ethylene production may be discourage the response to applied ethylene.
DOI: 10.5109/24216
Authors: Shao-Hui Zheng, Jun Inouye
Institution: Kyushu University
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: green
OpenAlex ID: W369996247