{"title":"Falcataria falcata （L.）相对生长速率和生态生理特性的种内变化Greuter & R.Rankin幼苗在东南亚和美拉尼西亚种群中的分布","authors":"Eny Faridah, Kiyosada Kawai, Arom Figyantika, Nesty Pratiwi Romadini, Tanaka Kenzo, Sawitri, Daryono Prehaten, Widiyatno, Mohammad Na’iem, Yoshihiko Tsumura, Naoki Tani","doi":"10.1007/s00468-025-02652-8","DOIUrl":null,"url":null,"abstract":"<div><h3>Key message</h3><p><i>Falcataria falcata</i>, one of the fastest-growing trees, showed a distinctively high photosynthetic rate and leaf nitrogen content. These traits were linked to seedling relative growth rates among nine populations.</p><h3>Abstract</h3><p>The increased demand for lightweight wood products requires genetic improvements in the growth, wood properties, and stress tolerance of fast-growing timber species. <i>Falcataria falcata</i> (Leguminosae) is one of the fastest-growing trees worldwide and an important multipurpose plantation species. This species is distributed across various geological locations in Southeastern Asia and Melanesia; therefore, populations from different regions may show phenotypic variations. Herein, we investigated variations in relative growth rate (RGR) and 17 traits related to growth, photosynthesis, and stress tolerance using current-year seedlings from nine populations grown under common greenhouse conditions. We detected a threefold variation in RGR among populations, with those from North Maluku, Papua, and Solomon showing relatively higher RGR. In total, 10 out of 17 traits varied significantly, with pronounced variation in nitrogen (N)-use traits, such as root nodule fraction (16.8-fold) and leaf nitrogen content per unit area (2.7-fold). <i>F. falcata</i> exhibited remarkably high photosynthetic rate (<i>A</i><sub>area</sub>), leaf nitrogen concentration (N<sub>mass</sub>), and specific leaf area, reaching the maxima reported for woody broadleaf species. The RGR was positively associated with <i>A</i><sub>area</sub>, N<sub>mass</sub>, and leaf dark respiration rate among populations, but not with biomass allocation. These results suggest that <i>Falcataria falcata</i> contains wide phenotypic variations among geologically different populations and that leaf traits can be used as an index of seedling RGR. This information could aid in designing efficient breeding programs for this species.</p></div>","PeriodicalId":805,"journal":{"name":"Trees","volume":"39 4","pages":""},"PeriodicalIF":2.1000,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Intraspecific variations in relative growth rate and eco-physiological properties of Falcataria falcata (L.) Greuter & R.Rankin seedlings among Southeast Asian and Melanesian populations\",\"authors\":\"Eny Faridah, Kiyosada Kawai, Arom Figyantika, Nesty Pratiwi Romadini, Tanaka Kenzo, Sawitri, Daryono Prehaten, Widiyatno, Mohammad Na’iem, Yoshihiko Tsumura, Naoki Tani\",\"doi\":\"10.1007/s00468-025-02652-8\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Key message</h3><p><i>Falcataria falcata</i>, one of the fastest-growing trees, showed a distinctively high photosynthetic rate and leaf nitrogen content. These traits were linked to seedling relative growth rates among nine populations.</p><h3>Abstract</h3><p>The increased demand for lightweight wood products requires genetic improvements in the growth, wood properties, and stress tolerance of fast-growing timber species. <i>Falcataria falcata</i> (Leguminosae) is one of the fastest-growing trees worldwide and an important multipurpose plantation species. This species is distributed across various geological locations in Southeastern Asia and Melanesia; therefore, populations from different regions may show phenotypic variations. Herein, we investigated variations in relative growth rate (RGR) and 17 traits related to growth, photosynthesis, and stress tolerance using current-year seedlings from nine populations grown under common greenhouse conditions. We detected a threefold variation in RGR among populations, with those from North Maluku, Papua, and Solomon showing relatively higher RGR. In total, 10 out of 17 traits varied significantly, with pronounced variation in nitrogen (N)-use traits, such as root nodule fraction (16.8-fold) and leaf nitrogen content per unit area (2.7-fold). <i>F. falcata</i> exhibited remarkably high photosynthetic rate (<i>A</i><sub>area</sub>), leaf nitrogen concentration (N<sub>mass</sub>), and specific leaf area, reaching the maxima reported for woody broadleaf species. The RGR was positively associated with <i>A</i><sub>area</sub>, N<sub>mass</sub>, and leaf dark respiration rate among populations, but not with biomass allocation. These results suggest that <i>Falcataria falcata</i> contains wide phenotypic variations among geologically different populations and that leaf traits can be used as an index of seedling RGR. This information could aid in designing efficient breeding programs for this species.</p></div>\",\"PeriodicalId\":805,\"journal\":{\"name\":\"Trees\",\"volume\":\"39 4\",\"pages\":\"\"},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2025-07-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Trees\",\"FirstCategoryId\":\"2\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s00468-025-02652-8\",\"RegionNum\":3,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"FORESTRY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Trees","FirstCategoryId":"2","ListUrlMain":"https://link.springer.com/article/10.1007/s00468-025-02652-8","RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"FORESTRY","Score":null,"Total":0}
Intraspecific variations in relative growth rate and eco-physiological properties of Falcataria falcata (L.) Greuter & R.Rankin seedlings among Southeast Asian and Melanesian populations
Key message
Falcataria falcata, one of the fastest-growing trees, showed a distinctively high photosynthetic rate and leaf nitrogen content. These traits were linked to seedling relative growth rates among nine populations.
Abstract
The increased demand for lightweight wood products requires genetic improvements in the growth, wood properties, and stress tolerance of fast-growing timber species. Falcataria falcata (Leguminosae) is one of the fastest-growing trees worldwide and an important multipurpose plantation species. This species is distributed across various geological locations in Southeastern Asia and Melanesia; therefore, populations from different regions may show phenotypic variations. Herein, we investigated variations in relative growth rate (RGR) and 17 traits related to growth, photosynthesis, and stress tolerance using current-year seedlings from nine populations grown under common greenhouse conditions. We detected a threefold variation in RGR among populations, with those from North Maluku, Papua, and Solomon showing relatively higher RGR. In total, 10 out of 17 traits varied significantly, with pronounced variation in nitrogen (N)-use traits, such as root nodule fraction (16.8-fold) and leaf nitrogen content per unit area (2.7-fold). F. falcata exhibited remarkably high photosynthetic rate (Aarea), leaf nitrogen concentration (Nmass), and specific leaf area, reaching the maxima reported for woody broadleaf species. The RGR was positively associated with Aarea, Nmass, and leaf dark respiration rate among populations, but not with biomass allocation. These results suggest that Falcataria falcata contains wide phenotypic variations among geologically different populations and that leaf traits can be used as an index of seedling RGR. This information could aid in designing efficient breeding programs for this species.
期刊介绍：
Trees - Structure and Function publishes original articles on the physiology, biochemistry, functional anatomy, structure and ecology of trees and other woody plants. Also presented are articles concerned with pathology and technological problems, when they contribute to the basic understanding of structure and function of trees. In addition to original articles and short communications, the journal publishes reviews on selected topics concerning the structure and function of trees.
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