Determinants of Shoot Biomass Production in Mulberry: Combined Selection with Leaf Morphological and Physiological Traits
Physiological and morphological traits have a considerable impact on the biomass production of fast-growing trees. To compare cultivar difference in shoot biomass and investigate its relationships with leaf functional traits in mulberry, agronomic traits and 20 physiological and morphological attrib...
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MDPI AG
2019-05-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/8/5/118 |
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| author | Xu Cao Qiudi Shen Chunqiong Shang Honglei Yang Li Liu Jialing Cheng |
| author_facet | Xu Cao Qiudi Shen Chunqiong Shang Honglei Yang Li Liu Jialing Cheng |
| author_sort | Xu Cao |
| collection | DOAJ |
| description | Physiological and morphological traits have a considerable impact on the biomass production of fast-growing trees. To compare cultivar difference in shoot biomass and investigate its relationships with leaf functional traits in mulberry, agronomic traits and 20 physiological and morphological attributes of 3-year-old mulberry trees from eight cultivars growing in a common garden were analyzed. The cultivars Xiang7920, Yu711, and Yunsang2 had higher shoot fresh biomass (SFB), which was closely associated with their rapid leaf expansion rate, large leaf area, and high stable carbon isotope composition (δ<sup>13</sup>C). Conversely, the cultivars 7307, Husang32, Wupu, Yunguo1, and Liaolu11 were less productive, and this was primarily the result of slower leaf expansion and smaller leaf size. Growth performance was negatively correlated with leaf δ<sup>13</sup>C and positively correlated with the total nitrogen concentration, indicating that a compromise exists in mulberry between water use efficiency (WUE) (low δ<sup>13</sup>C) and high nitrogen consumption for rapid growth. Several morphological traits, including the maximum leaf area (LA<sub>max</sub>), leaf width and length, petiole width and length, leaf number per shoot, and final shoot height were correlated with SFB. The physiological traits that were also influential factors of shoot biomass were the leaf δ<sup>13</sup>C, the total nitrogen concentration, and the water content. Among the studied leaf traits, LA<sub>max</sub>, leaf δ<sup>13</sup>C, and concentrations of chlorophyll a and b were identified as the most representative predictor variables for SFB, accounting for 73% of the variability in SFB. In conclusion, a combination of LA<sub>max</sub>, leaf δ<sup>13</sup>C, and chlorophyll should be considered in selection programs for high-yield mulberry cultivars. |
| first_indexed | 2024-04-11T18:45:05Z |
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| last_indexed | 2024-04-11T18:45:05Z |
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| series | Plants |
| spelling | doaj.art-522941f347b14396be022ddd44a3ee3c2022-12-22T04:08:51ZengMDPI AGPlants2223-77472019-05-018511810.3390/plants8050118plants8050118Determinants of Shoot Biomass Production in Mulberry: Combined Selection with Leaf Morphological and Physiological TraitsXu Cao0Qiudi Shen1Chunqiong Shang2Honglei Yang3Li Liu4Jialing Cheng5College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaCollege of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaCollege of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaCollege of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaCollege of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaCollege of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaPhysiological and morphological traits have a considerable impact on the biomass production of fast-growing trees. To compare cultivar difference in shoot biomass and investigate its relationships with leaf functional traits in mulberry, agronomic traits and 20 physiological and morphological attributes of 3-year-old mulberry trees from eight cultivars growing in a common garden were analyzed. The cultivars Xiang7920, Yu711, and Yunsang2 had higher shoot fresh biomass (SFB), which was closely associated with their rapid leaf expansion rate, large leaf area, and high stable carbon isotope composition (δ<sup>13</sup>C). Conversely, the cultivars 7307, Husang32, Wupu, Yunguo1, and Liaolu11 were less productive, and this was primarily the result of slower leaf expansion and smaller leaf size. Growth performance was negatively correlated with leaf δ<sup>13</sup>C and positively correlated with the total nitrogen concentration, indicating that a compromise exists in mulberry between water use efficiency (WUE) (low δ<sup>13</sup>C) and high nitrogen consumption for rapid growth. Several morphological traits, including the maximum leaf area (LA<sub>max</sub>), leaf width and length, petiole width and length, leaf number per shoot, and final shoot height were correlated with SFB. The physiological traits that were also influential factors of shoot biomass were the leaf δ<sup>13</sup>C, the total nitrogen concentration, and the water content. Among the studied leaf traits, LA<sub>max</sub>, leaf δ<sup>13</sup>C, and concentrations of chlorophyll a and b were identified as the most representative predictor variables for SFB, accounting for 73% of the variability in SFB. In conclusion, a combination of LA<sub>max</sub>, leaf δ<sup>13</sup>C, and chlorophyll should be considered in selection programs for high-yield mulberry cultivars.https://www.mdpi.com/2223-7747/8/5/118tree biomassδ<sup>13</sup>Cchlorophyllleaf phenologymodel averaging<i>Morus</i> |
| spellingShingle | Xu Cao Qiudi Shen Chunqiong Shang Honglei Yang Li Liu Jialing Cheng Determinants of Shoot Biomass Production in Mulberry: Combined Selection with Leaf Morphological and Physiological Traits Plants tree biomass δ<sup>13</sup>C chlorophyll leaf phenology model averaging <i>Morus</i> |
| title | Determinants of Shoot Biomass Production in Mulberry: Combined Selection with Leaf Morphological and Physiological Traits |
| title_full | Determinants of Shoot Biomass Production in Mulberry: Combined Selection with Leaf Morphological and Physiological Traits |
| title_fullStr | Determinants of Shoot Biomass Production in Mulberry: Combined Selection with Leaf Morphological and Physiological Traits |
| title_full_unstemmed | Determinants of Shoot Biomass Production in Mulberry: Combined Selection with Leaf Morphological and Physiological Traits |
| title_short | Determinants of Shoot Biomass Production in Mulberry: Combined Selection with Leaf Morphological and Physiological Traits |
| title_sort | determinants of shoot biomass production in mulberry combined selection with leaf morphological and physiological traits |
| topic | tree biomass δ<sup>13</sup>C chlorophyll leaf phenology model averaging <i>Morus</i> |
| url | https://www.mdpi.com/2223-7747/8/5/118 |
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