scholarly journals Effects of needle age on leaf traits and their correlations of Pinus koraiensis across different regions

2021 ◽  
Vol 45 (3) ◽  
pp. 253-264
Author(s):  
Zi-Yan ZHANG ◽  
Guang-Ze JIN ◽  
Zhi-Li LIU ◽  
◽  
Keyword(s):  
Leaf Traits ◽  
Pinus Koraiensis ◽  
Needle Age

scholarly journals Effects of ontogenetic stage and leaf age on leaf functional traits and the relationships between traits in Pinus koraiensis

2021 ◽  
Author(s):  
Meng Ji ◽  
Guangze Jin ◽  
Zhili Liu
Keyword(s):  
Significant Positive Correlation ◽  
Leaf Age ◽  
Leaf Traits ◽  
Ontogenetic Stage ◽  
Pinus Koraiensis ◽  
Mature Trees ◽  
N Content ◽  
Ontogenetic Stages ◽  
Leaf N Content ◽  
Leaf N

AbstractInvestigating the effects of ontogenetic stage and leaf age on leaf traits is important for understanding the utilization and distribution of resources in the process of plant growth. However, few studies have been conducted to show how traits and trait-trait relationships change across a range of ontogenetic stage and leaf age for evergreen coniferous species. We divided 67 Pinus koraiensis Sieb. et Zucc. of various sizes (0.3–100 cm diameter at breast height, DBH) into four ontogenetic stages, i.e., young trees, middle-aged trees, mature trees and over-mature trees, and measured the leaf mass per area (LMA), leaf dry matter content (LDMC), and mass-based leaf nitrogen content (N) and phosphorus content (P) of each leaf age group for each sampled tree. One-way analysis of variance (ANOVA) was used to describe the variation in leaf traits by ontogenetic stage and leaf age. The standardized major axis method was used to explore the effects of ontogenetic stage and leaf age on trait-trait relationships. We found that LMA and LDMC increased significantly and N and P decreased significantly with increases in the ontogenetic stage and leaf age. Most trait-trait relationships were consistent with the leaf economic spectrum (LES) at a global scale. Among them, leaf N content and LDMC showed a significant negative correlation, leaf N and P contents showed a significant positive correlation, and the absolute value of the slopes of the trait-trait relationships showed a gradually increasing trend with an increasing ontogenetic stage. LMA and LDMC showed a significant positive correlation, and the slopes of the trait-trait relationships showed a gradually decreasing trend with leaf age. Additionally, there were no significant relationships between leaf N content and LMA in most groups, which is contrary to the expectation of the LES. Overall, in the early ontogenetic stages and leaf ages, the leaf traits tend to be related to a "low investment-quick returns" resource strategy. In contrast, in the late ontogenetic stages and leaf ages, they tend to be related to a "high investment-slow returns" resource strategy. Our results reflect the optimal allocation of resources in Pinus koraiensis according to its functional needs during tree and leaf ontogeny.

scholarly journals Needle-Age Related Variability in Nitrogen, Mobile Carbohydrates, and δ13C within Pinus koraiensis Tree Crowns

PLoS ONE ◽  
2012 ◽  
Vol 7 (4) ◽  
pp. e35076 ◽  
Author(s):  
Cai-Feng Yan ◽  
Shi-Jie Han ◽  
Yu-Mei Zhou ◽  
Cun-Guo Wang ◽  
Guan-Hua Dai ◽  
...  
Keyword(s):  
Pinus Koraiensis ◽  
Needle Age ◽  
Tree Crowns ◽  
Age Related

scholarly journals Effects of Increased N Deposition on Leaf Functional Traits of Four Contrasting Tree Species in Northeast China

Plants ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1231
Author(s):  
Attaullah Khan ◽  
Jingjue Sun ◽  
Nowsherwan Zarif ◽  
Kashif Khan ◽  
Muhammad Atif Jamil ◽  
...  
Keyword(s):  
Biomass Allocation ◽  
Northeast China ◽  
Leaf Traits ◽  
N Deposition ◽  
Leaf Thickness ◽  
Pinus Koraiensis ◽  
Leaf Mass Per Area ◽  
Leaf Mass ◽  
Allocation Patterns ◽  
Leaf Density

Northeast China is persistently affected by heavy nitrogen (N) deposition. Studying the induced variation in leaf traits is pivotal to develop an understanding of the adaptive plasticity of affected species. This study thus assesses effects of increased N deposition on leaf morphological and anatomical traits and their correlation among and with biomass allocation patterns. A factorial experiment was conducted utilizing seedlings of two gymnosperms (Larix gmelinii, Pinus koraiensis) and two angiosperms (Fraxinus mandshurica, Tilia amurensis). Leaf mass per area and leaf density decreased and leaf thickness increased under high N deposition but trait interrelations remained stable. In gymnosperms, leaf mass per area was correlated to both leaf thickness and area, while being correlated to leaf density only in angiosperms. Epidermis, mesophyll thickness, conduit and vascular bundle diameter increased. Despite the differences in taxonomic groups and leaf habits, the common patterns of variation suggest that a certain degree of convergence exists between the species’ reaction towards N deposition. However, stomata pore length increased in angiosperms, and decreased in gymnosperms under N deposition. Furthermore, biomass and leaf mass fraction were correlated to leaf traits in gymnosperms only, suggesting a differential coordination of leaf traits and biomass allocation patterns under high N deposition per taxonomic group.

Cone-bearing effects on photosynthetic traits do not change with needle age in Pinus koraiensis trees

New Forests ◽  
2021 ◽  
Author(s):  
Haibo Wu ◽  
Dongsheng Yin ◽  
Jesús Rodríguez-Calcerrada ◽  
Jianying Zhang ◽  
Luis Gil ◽  
...  
Keyword(s):  
Pinus Koraiensis ◽  
Needle Age ◽  
Photosynthetic Traits

Evaluation of Agronomic Traits of Sponge Gourd (Luffa cylindrica) Inbred Lines Under Plastic House in Thua Thien Hue

2017 ◽  
Vol 126 (3E) ◽  
Author(s):  
Trương Thị Hồng Hải ◽  
Nguyễn Thị Diệu Thể ◽  
Phan Thu Thảo
Keyword(s):  
Skin Color ◽  
Agronomic Traits ◽  
Block Design ◽  
Leaf Traits ◽  
Pure Line ◽  
Inbred Lines ◽  
Fruit Shape ◽  
Yield Potential ◽  
High Yield ◽  
Sponge Gourd

In order to establish the pure line of sponge gourd containing aroma feature, we selected the desirable inbred lines by using a self-pollinating method. The present study was investigated to estimate the morphological traits and fruit quality of 6 sponge gourd inbred lines which generated at 4th generation of an aroma Luffa accession B29 under plastic house conditions. The experiment was conducted in a randomized complete block design (RCBD) with three replications, from May to November in 2016. Five plants per replication were examined. The results indicated that all inbred lines could grow well under plastic house conditions. The inbred lines had the same stem and leaf traits; whereas fruit shape, skin color and fruit veins color were observed differently among inbred lines. The aromatic trait was retained in all inbred lines either before or after cooking. The high yield was found in lines BC1 and BC2 by 10.1 tons/ha and 10.7 tons/ha, respectively. These inbred lines should be examined in open field condition to confirm the presence of aromatic trait and yield potential before completion of the procedures for recognition of new Luffa varieties.  

APPLICATION OF THE GROWTH STIMULATOR BERES?4 FOR GROWING SEEDLINGS OF THE CEDAR KOREAN (PINUS KORAIENSIS)

2018 ◽  
pp. 119-123
Author(s):  
V.G. SHVEDOV ◽  
E.V. STELMAH ◽  
I.L. REVUTSKAYA ◽  
I.S. GUMENNY
Keyword(s):  
Pinus Koraiensis ◽  
Growth Stimulator

Variations with slope in stem and leaf traits of Melica przewalskyi in alpine grassland

2014 ◽  
Vol 38 (12) ◽  
pp. 1307-1314
Author(s):  
DANG Jing-Jing ◽  
◽  
ZHAO Cheng-Zhang ◽  
LI Yu ◽  
HOU Zhao-Jiang ◽  
...  
Keyword(s):  
Leaf Traits ◽  
Alpine Grassland

Effects of nitrogen deposition on litter decomposition and nutrient release mediated by litter types and seasonal change in a temperate forest

2020 ◽  
Vol 100 (1) ◽  
pp. 11-25 ◽  
Author(s):  
Guoyong Yan ◽  
Xiongde Dong ◽  
Binbin Huang ◽  
Honglin Wang ◽  
Ziming Hong ◽  
...  
Keyword(s):  
Mass Loss ◽  
Litter Decomposition ◽  
Nutrient Release ◽  
N Deposition ◽  
Pinus Koraiensis ◽  
N Addition ◽  
Entire Study ◽  
Mixed Litter ◽  
Negative Effect ◽  
Four Levels

We conducted a field experiment with four levels of simulated nitrogen (N) deposition (0, 2.5, 5, and 7.5 g N m−2 yr−1, respectively) to investigate the response of litter decomposition of Pinus koraiensis (PK), Tilia amurensis (TA), and their mixture to N deposition during winter and growing seasons. Results showed that N addition significantly increased the mass loss of PK litter and significantly decreased the mass loss of TA litter throughout the 2 yr decomposition processes, which indicated that the different responses in the decomposition of different litters to N addition can be species specific, potentially attributed to different litter chemistry. The faster decomposition of PK litter with N addition occurred mainly in the winter, whereas the slower decomposition of TA litter with N addition occurred during the growing season. Moreover, N addition had a positive effect on the release of phosphorus, magnesium, and manganese for PK litter and had a negative effect on the release of carbon, iron, and lignin for TA litter. Decomposition and nutrient release from mixed litter with N addition showed a non-additive effect. The mass loss from litter in the first winter and over the entire study correlated positively with the initial concentration of cellulose, lignin, and certain nutrients in the litter, demonstrating the potential influence of different tissue chemistries.

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