학술논문
6-benzylaminopurine의 엽면살포가 나도풍란 유묘의 생장 및 개화에 미치는 영향 분석
Effect of foliar spraying 6-benzylaminopurine on the growth and flowering of Sedirea japonica seedling
Effect of foliar spraying 6-benzylaminopurine on the growth and flowering of Sedirea japonica seedling
Document Type
Article
Author
안지애 / Jiae An; 박형빈 / Hyeong-bin Park; 김평범 / Pyoung-beom Kim; 박환준 / Hwan-joon Park; 김성준 / Seongjun Kim; 이창우 / Chang-woo Lee; 이병두 / Byoung-doo Lee; 백주형 / Ju-hyoung Baek; 김남영 / Nam-young Kim; 황정은 / Jung-eun Hwang
Source
한국환경복원기술학회지 (환경복원기술) / Journal of the Korea Society of Environmental Restoration Technology. Jan 01, 2023 26(6):155
Subject
Language
Korean
English
English
ISSN
1229-3032
Abstract
Sedirea japonica is one of the critically endangered species in South Korea mostly due to artificial harms such as illegal collection and habitat destruction. Therefore, artificial propagation through improving germination rate, increasing growth, and controlling flowering is meaningful for the conservation and reintroduction of S. japonica. It is suggested that cytokinins are one of the multi-factors that contribute to plant growth and floral responses. Especially, exogenous cytokinins have been known to induce or promote shoot growth or earlier flowering in orchids. Therefore, it was investigated how the application of 6-benzylaminopurine (BA) influenced the growth and inflorescence of S. japonica. A foliar spray containing BA at 100, 200, 300, and 400 ppm was applied from 1st July to 30th December 2021. Leaf length, leaf length growth rate, leaf width, and width and length ratio were measured as growth-related factors. Visible inflorescence rate, inflorescence length, the number of flowers per inflorescence, and the distance between the stalks were measured as flowering-related factors. Growth-related factors except for leaf growth rate were not affected by BA treatments, while leaf growth rate was significantly increased by 200 ppm of BA treatment. The visible inflorescence rate increased by 200 ppm of BA treatment, and there seems an optimal concentration and threshold of BA treatment. An iterative experiment with more seedlings and measurement factors would be helpful to figure out the effects of exogenous BA treatment on S. japonica, and it can be applied for mass propagation.