caa a22 4500 445841362 CHVBK 20180317145345.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s10725-010-9524-3 doi (NATIONALLICENCE)springer-10.1007/s10725-010-9524-3 Effects of combinational treatment with ethephon and indole-3-butyric acid on adventitious rooting of Pinus thunbergii cuttings [Elektronische Daten] [Yasuhiro Mori, Fumihiko Miyahara, Yuji Tsutsumi, Ryuichiro Kondo] Adventitious rooting is essential for cutting propagation of pine wilt-resistant Pinus thunbergii. To examine a variety of adventitious rooting potentials among donor plants, cuttings were taken from 31 seedlings within a half-sib family. Rooting abilities of cuttings from each seedling ranged from 0 to 100%. When 11 ortets and 11 ramets (clonally propagated from each ortet) were used as donor plants, there was a positive correlation between rooting abilities of cuttings from ortets and ramets, suggesting that adventitious rooting is dependent on genetic factors in the donor plants. To promote adventitious rooting of cuttings by hormonal treatment, we examined the effect of soaking time in Oxyberon (19.7mM indole-3-butyric acid (IBA) solution) on rooting. Ten minutes was the best soaking time for rooted cuttings to produce more adventitious roots without impairing normal growth. When cuttings were soaked in Ethrel diluent (69.2μM ethephon) for 24h before soaking in Oxyberon for 10min, a significantly higher rooting ability was observed than those soaked in Oxyberon alone. Ethrel on its own barely affected rooting ability. The positive effect of the combinational treatment was confirmed in a similar experiment using authentic ethephon and IBA instead of Ethrel and Oxyberon. When cuttings were soaked in a mixture of ethephon and silver thiosulfate (STS), an ethylene action inhibitor, before IBA-soaking, the effect was partially diminished compared with combinational treatment without STS. These findings suggest that ethylene action caused by ethephon treatment promotes IBA-mediated adventitious rooting of P. thunbergii cuttings. Springer Science+Business Media B.V., 2010 Adventitious root nationallicence Cutting nationallicence Ethephon nationallicence Ethylene nationallicence Indole-3-butyric acid nationallicence Pinus thunbergii nationallicence Mori Yasuhiro Fukuoka Prefecture Forest Research and Extension Center, 1438-2, Toyoda Yamamoto-machi, Kurume, 839-0827, Fukuoka, Japan aut Miyahara Fumihiko Fukuoka Prefecture Forest Research and Extension Center, 1438-2, Toyoda Yamamoto-machi, Kurume, 839-0827, Fukuoka, Japan aut Tsutsumi Yuji Department of Forest and Forest Products Sciences, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, 812-8581, Fukuoka, Japan aut Kondo Ryuichiro Department of Forest and Forest Products Sciences, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, 812-8581, Fukuoka, Japan aut Plant Growth Regulation Springer Netherlands 63/3(2011-04-01), 271-278 0167-6903 63:3<271 2011 63 10725 https://doi.org/10.1007/s10725-010-9524-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10725-010-9524-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mori Yasuhiro Fukuoka Prefecture Forest Research and Extension Center, 1438-2, Toyoda Yamamoto-machi, Kurume, 839-0827, Fukuoka, Japan aut NATIONALLICENCE 700 1- Miyahara Fumihiko Fukuoka Prefecture Forest Research and Extension Center, 1438-2, Toyoda Yamamoto-machi, Kurume, 839-0827, Fukuoka, Japan aut NATIONALLICENCE 700 1- Tsutsumi Yuji Department of Forest and Forest Products Sciences, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, 812-8581, Fukuoka, Japan aut NATIONALLICENCE 700 1- Kondo Ryuichiro Department of Forest and Forest Products Sciences, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, 812-8581, Fukuoka, Japan aut NATIONALLICENCE 773 0- Plant Growth Regulation Springer Netherlands 63/3(2011-04-01), 271-278 0167-6903 63:3<271 2011 63 10725 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer