Study on the variation in and selection of Fraxinus mandshurica provenances and families in northeast China

Hao, Junfei; Chen, Na; Yan, Pingyu; Xu, Ke; Zhang, Lei; Zhang, Hanguo

doi:10.1007/s11676-022-01478-1

Cited by 5 publications

(3 citation statements)

References 30 publications

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“…The phenotypic coefficient of variation is an important indicator in the evaluation and selection of high-quality materials for experimentation [41]. Typically, materials with a larger degree of variability are selected for such purposes (less than 10% is low PCV, 10-20% is moderate, and more than 20% is high).…”

Section: Discussionmentioning

confidence: 99%

Evaluation and Selection of Excellent Provenances of Eleutherococcus senticosus

Zhang,

Ding

et al. 2023

Forests

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Eleutherococcus senticosus is a medicinal plant with prominent potential for pharmaceutical preparation that is naturally distributed in Northeast China. Its dried roots, stems, and fruits can be used as herbal medicine with anti-aging, anti-fatigue, anti-inflammatory, and other health benefits. With the continuous increasing of E. senticosus planting areas, some problems, such as a reduction in growth rate, fruit yield, and medicinal substances content, have become serious restricting factors for the long-term stable development of the E. senticosus industry. Therefore, the screening and selection of superior provenances, families or clones with high growth rates and high contents of medicinal substances, is urgent. In this study, 13 provenances of E. senticosus were analyzed and evaluated for growth, leaf, photosynthetic, and medicinal traits. The results showed that the majority of traits exhibited highly significant differences (p < 0.01) among provenances. The phenotypic coefficient of the variation of each trait ranged from 4.8% for leaf water content to 70.9% for total flavonoid content. The narrow-sense heritability of each trait ranged from 0.20 ± 0.23 for WUE to 0.39 ± 0.14 for DB. The variance component of all traits reached a high level, with a range of 62.9% (DB) to 99.6% (SC). The correlation analysis showed significant positive correlations between tree height, total flavonoid content, and syringin content. A multi-trait comprehensive evaluation approach enabled the selection of two provenances with 10% acceptance rate (XQ and QY). The subsequent genetic gains for tree height, total flavonoid content, and syringin content were 1.7%, 9.2%, and 20.1%, respectively. In conclusion, the present study provides a fundamental basis for the cultivation and promotion of the superior materials of E. senticosus.

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Section: Discussionmentioning

confidence: 99%

Evaluation and Selection of Excellent Provenances of Eleutherococcus senticosus

Zhang,

Ding

et al. 2023

Forests

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“…The phenomenon of thermodormancy gains ecologic and economic relevance with climate change, as increasing temperatures are expected in temperate and boreal regions [4]. Heat spells or prolonged warm periods in regions where species with thermodormant seeds are frequent may reduce their seed germination efficiency, seedling emergence and overall yield, causing significant economic losses to agriculture and forestry [5]. Dormancy can be classified as exogenous or endogenous.…”

Section: Introductionmentioning

confidence: 99%

Thermodormancy and Germination Response to Temperature of Pyrus ussuriensis Seeds

Liu,

Li,

Zhu

et al. 2024

Agronomy

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To determine the optimal germination temperature for Pyrus ussuriensis seeds and whether they experienced the phenomenon of thermodormancy and its inciting factors, several germination tests were conducted using non-dormant P. ussuriensis seeds for comparison. The results showed that the highest germination rate of P. ussuriensis seeds was reached at a constant temperature of 5 °C and variable temperature (night/day) of 5 °C/10 °C. Constant temperatures of 25 °C for three days induced thermodormancy, triggering significant drops in seeding emergence. Thermodormancy was related to the inhibitory effect of endogenous substances in the seed coat and an elevated abscisic acid concentration. The embryo, by contrast, remained non-dormant. Thermodormant and non-dormant seed embryos showed higher germination rates than dormant seed embryos when applied exogenous abscisic acid and gibberellic acid. We found that P. ussuriensis seeds showed thermodormancy; thus, during early spring sowing, high temperatures should be avoided to prevent low seed germination capacity. Additionally, applying exogenous gibberellic acid, shading and increasing soil moisture can be helpful to enhance the species seed germination.

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“…According to the ninth forest resource inventory report [18], the area of Chinese fir plantations is 9.902 million hm 2 , accounting for 17.33% of the total forest area, and the storage volume is 755.4501 million cubic meters, accounting for 22.30% of the total, ranking first in the area and storage of artificial arbor forests in China. The selection of tree species provenance plays an important role in tree genetic improvement and the foundation of tree breeding [19]. In 1976, China established a national Chinese fir geographical provenance experiment collaboration group to carry out Chinese fir provenance experiments due to the limited application of improved Chinese fir varieties and the low productivity during afforestation [20].…”

Section: Introductionmentioning

confidence: 99%

Variations in Leaf Functional Traits and Photosynthetic Parameters of Cunninghamia lanceolata Provenances

Xu,

Niu,

Wang

et al. 2023

Forests

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Studying the variation and correlation of traits among provenances is of great significance for the selection of excellent provenances and the interpretation of the acclimation mechanisms of different provenances in the context of climate change. The photosynthetic characteristic parameters and leaf functional traits of 18 Cunninghamia lanceolata provenances in a common garden were measured. Redundancy analysis combined with Pearson analysis was used to analyze the relationship among leaf photosynthetic characteristics, functional traits, and geo-climatic conditions. The results showed the following: (1) Significant differences in functional traits and photosynthetic parameters among provenances were observed, and the gsw and LDMC have the greatest variation as photosynthetic indicators and functional traits, respectively, because of the acclimation ability. (2) Leaf functional traits can better reflect the variation of photosynthetic characteristic parameters. The correlation between most photosynthetic characteristic parameters and functional traits reached a significant level (p < 0.05), and the leaf dry weight (LDW) and specific leaf area (SLA) are key trait factors that determine photosynthetic characteristic parameters. (3) Precipitation appeared to be a key factor that influences intraspecific leaf traits’ variability compared to temperature. This study can explain how provenances acclimate to the environment and which provenances are more suitable for planting in the study area under the context of climate change from a mechanistic perspective.

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Study on the variation in and selection of Fraxinus mandshurica provenances and families in northeast China

Cited by 5 publications

References 30 publications

Evaluation and Selection of Excellent Provenances of Eleutherococcus senticosus

Evaluation and Selection of Excellent Provenances of Eleutherococcus senticosus

Thermodormancy and Germination Response to Temperature of Pyrus ussuriensis Seeds

Variations in Leaf Functional Traits and Photosynthetic Parameters of Cunninghamia lanceolata Provenances

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