2022 International symposium of Institute of Forest Science for the 40th Anniversary of College of Forest and Environment Science (2022.10)바로가기
페이지
pp.97-97
저자
Xiujun Lu
언어
영어(ENG)
URL
https://www.earticle.net/Article/A450470
원문정보
초록
영어
The stored non-structural carbohydrates (NSC) (i.e. sugars and starch) in trees play an important role in metabolism and growth, but their relationship with plant architecture is poorly understood. Mongolian oak (Quercus mongolica) is an important economic hardwood species in northeast China, but a lack of apical control during the seedling stage may reduce the potential to grow quality timber. In this research, we quantified the effects of repeated pruning (RP) on morphology, biomass, and NSC dynamics in Mongolian oak seedlings. The RP treatment significantly promoted the growth of terminal shoot by increasing the length of the second flush; however, rapid recovery of lateral branch growth indicated that the capacity for apical control was not enhanced. The RP treatment significantly modified longitudinal NSC distribution pattern in different growth units (GUs) of the stem, with higher NSC reserves in the upper parts of the stem expected to enhance growth potential. The sustained total NSC storage of the whole seedling, together with starch depletion at GU1 of the stem, indicated that both the carbohydrate status of the whole seedling and the local costs of starch are the reasons for maintaining the active branch growth. The quantification of the temporal and spatial variation in sugars and starch concentrations in different tissues improved our understanding of NSC dynamics in Mongolian oak, revealing the potential relationships between carbohydrate status and plant apical dominance in trees.
강원대학교 산림과학연구소 [Institute of Forest Science Kangwon National University]
설립연도
1975
분야
농수해양>임학
소개
강원대학교부설산림과학연구소(이하 “연구소”라 한다)는 산림에 관한 제반 학술적 연구를 통하여 산림자원의 효용을 밝히고 임업 및 임산업의 발전에 기여함을 목적으로 한다.
간행물
간행물명
강원대학교 산림과학연구소 학술대회
간기
부정기
수록기간
2017~2024
십진분류
KDC 526DDC 634
이 권호 내 다른 논문 / 강원대학교 산림과학연구소 학술대회 2022 International symposium of Institute of Forest Science for the 40th Anniversary of College of Forest and Environment Science