Large investment of stored nitrogen and phosphorus in female cones is consistent with infrequent reproduction events of Pinus koraiensis, a high value woody oil crop in Northeast Asia
Pinus koraiensis is famous for its high-quality timber production all the way and is much more famous for its high value health-care nut oil production potential since 1990’s, but the less understanding of its reproduction biology seriously hindered its nut productivity increase. Exploring the effects of reproduction on nutrient uptake, allocation and storage can help to understand and modify reproduction patterns in masting of such species and high nut yield cultivar selection and breeding. Here, we compared seasonality in growth and in nitrogen ([N]) and phosphorus ([P]) concentrations in needles, branches and cones of reproductive (cone-bearing) and vegetative branches (having no cones) of Pinus koraiensis during a masting year. The growth of one- and two-year-old reproductive branches was significantly higher than that of vegetative branches. Needle, phloem and xylem [N] and [P] were lower in reproductive branches than that in vegetative branches, although the extent and significance of the differences between branch types varied across dates. [N] and [P] in most tissues were high in spring, decreased during summer, and then recovered at the end of the growing season. Overall, [N] and [P] were highest in needles, lowest in xylem and intermediate in phloem. More than half of the N (73.5%) and P (51.6%) content in reproductive branches were allocated to cones. There was a positive correlation between cone number and N and P content in needles and twigs of two-year-old reproductive branches. High nutrient sink strength of cones and vegetative tissues of reproductive branches suggested that the customized fertilization practices can help improve crop yield in Pinus koraiensis.
키워드
Korean pinestrobilibranch growthnutrient concentrationseasonal dynamics
저자
Dongsheng Yin [ Forestry Research Institute of Heilongjiang Province, 150081 Harbin, China ]
Haibo Wu [ State Key Laboratory of Tree Genetics and Breeding, School of Forestry, Northeast Forestry University, 150040 Harbin, China; Department of Natural Systems and Resources, Universidad Politécnica de Madrid. Ciudad Universitaria s/n, 28040 Madrid, Spain; State Forestry and Grassland Administration Engineering Technology Research Center of Korean Pine, 150040 Harbin, China ]
Jianying Zhang [ Forestry Research Institute of Heilongjiang Province, 150081 Harbin, China ]
Jesús Rodríguez-Calcerrada [ Department of Natural Systems and Resources, Universidad Politécnica de Madrid. Ciudad Universitaria s/n, 28040 Madrid, Spain ]
Roberto L. Salomón [ Department of Natural Systems and Resources, Universidad Politécnica de Madrid. Ciudad Universitaria s/n, 28040 Madrid, Spain ]
Hailong Shen [ State Key Laboratory of Tree Genetics and Breeding, School of Forestry, Northeast Forestry University, 150040 Harbin, China; State Forestry and Grassland Administration Engineering Technology Research Center of Korean Pine, 150040 Harbin, China ]
Peng Zhang [ State Key Laboratory of Tree Genetics and Breeding, School of Forestry, Northeast Forestry University, 150040 Harbin, China; State Forestry and Grassland Administration Engineering Technology Research Center of Korean Pine, 150040 Harbin, China ]
Corresponding Author
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