Yoshikazu Yamaki
Utsunomiya University
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Featured researches published by Yoshikazu Yamaki.
Journal of Horticultural Science & Biotechnology | 2010
A. Pawasut; Kenji Yamane; Nobuaki Fujishige; K. Yoneyama; Yoshikazu Yamaki
Summary The effects of seed coat removal and chilling on the germination of seeds of ten cultivars of ornamental peach (Prunus persica Batsch) were investigated. Seeds were rinsed in running tap water for 48 h in order to facilitate seed coat removal. Only a few non-chilled, intact seeds germinated (e.g., 6% of ‘Hito’ seeds). Seed coat removal and no chilling resulted in some seed germination in eight of the ten cultivars, ranging from 6% to 83%. Chilling intact seeds at 5°C for up to 10 weeks resulted in greater frequencies of germination (average = 85% germination) than seed coat removal before (average = 80%) or after chilling (average = 73%). There was a linear decrease in the germination percentage with an increase in abscisic acid (ABA) content for ‘Yaguchi’,‘Kanpaku’, and ‘Kikumomo’ seeds (R = –0.66; P <0.001). The most consistent decrease in total seed ABA content (average of 64%) occurred during the 48 h rinsing period. In ‘Kanpaku’, dry seeds had an intermediate ABA content (13 ng per seed); but, in the embryonic axes, this increased from 0.03 ng to 1.2 ng per seed with an increase in the duration of the chilling period. The lowest germination percentages were found in this cultivar. These results suggest that ABA synthesis in the embryonic axes during chilling may affect the varietal characteristic of seed dormancy, and that rinsing seeds for >48 h could remove sufficient ABA to allow seed germination with minimum chilling.
Journal of The Japanese Society for Horticultural Science | 2009
Ratrapee Pipattanawong; Kenji Yamane; Nobuaki Fujishige; Sang-woo Bang; Yoshikazu Yamaki
Environmental Control in Biology | 2014
Chairat Burana; Takeshi Kurokura; Yoshikazu Yamaki; Kenji Yamane
Journal of The Japanese Society for Horticultural Science | 2010
Kenji Yamane; Aki Inotsume; Yuka Nakajima; Yoshiharu Wada; Yoshikazu Yamaki; Makiko Hayashi; Akira Shimizu
The Horticulture Journal | 2016
Inna Martha Rumainum; Kanjana Worarad; Yoshikazu Yamaki; Kenji Yamane
Acta Horticulturae | 2005
Kenji Yamane; Tomoko Kawauchi; Yoshikazu Yamaki; Nobuaki Fujishige
Agrivita : Journal of Agricultural Science | 2018
Inna Martha Rumainum; Kanjana Worarad; Yoshikazu Yamaki; Kenji Yamane
Acta Horticulturae | 2008
Kenji Yamane; So-Young Park; Nobuaki Fujishige; Yoshikazu Yamaki
한국원예학회 기타간행물 | 2006
So-Young Park; Saiko Takahashi; Kenji Yamane; Yoshikazu Yamaki
한국원예학회 기타간행물 | 2006
Aki Inotsume; Kenji Yamane; Nobuaki Fujishige; Yoshikazu Yamaki