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Influences of open-central canopy on photosynthetic parameters and fruit quality of apples (Malus x domestica) in the Loess Plateau of China | |
Lin, Lu; Niu, Zimian; Jiang, Chuangdao1; Yu, Lu; Wang, Hongning2; Qiao, Meiyu1 | |
2022 | |
发表期刊 | HORTICULTURAL PLANT JOURNAL |
ISSN | 2095-9885 |
卷号 | 8期号:2页码:133-142 |
摘要 | Although open-central canopy (OCC) is popular in apple (Malus x domestica) orchards in Loess Plateau of China, its relevant photosynthetic mechanisms have not been elucidated. In this study, changes in photosynthetically active radiation ( PAR ), gas exchange, chlorophyll fluorescence quenching and fruit quality in apple trees were measured in OCC and compared with those in the conventional condensed round and large canopy (RLC). Results showed that light intercepted at different orientations was 44% higher by OCC than that by RLC. The improved light environment within OCC remarkably increased leaf maximum net photosynthetic rate (P-nmax) and significantly decreased stomatal limitation. Under high light, the ratio of photorespiratory rate to gross photosynthetic rate (P-r/P-g) in OCC was higher than that in RLC. Moreover, reversible component in non-photochemical quenching (r(qE)) was increased, while irreversible component (r(qI)) was decreased in OCC than in RLC. As a result, the fruit quality in OCC was greatly boosted as evidenced by the significantly increased single fruit weight, fruit flesh firmness and fruit soluble solid contents and the sharply decreased fruit titratable acid contents. PAR intercepted by the canopy and the fruit soluble solid contents, leaf P-nmax or single fruit weight were positively correlated, while PAR or P-nmax was negatively correlated with the fruit titratable acid contents. Accordingly, the improved crown light environment and the enhanced leaf photosynthetic performance and photoprotective capacity in OCC led to the boosted fruit quality. |
关键词 | Apple Open-central canopy Light environment Photosynthesis Thermal dissipation Photorespiration Fruit quality |
学科领域 | Plant Sciences ; Horticulture |
DOI | 10.1016/j.hpj.2021.03.008 |
收录类别 | SCI |
语种 | 英语 |
WOS关键词 | BIOCHEMICAL-MODEL ; CO2 ASSIMILATION ; LEAVES ; PHOTORESPIRATION ; ORCHARD ; YIELD |
WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
WOS记录号 | WOS:000772636700001 |
出版者 | KEAI PUBLISHING LTD |
文献子类 | Article |
出版地 | BEIJING |
EISSN | 2468-0141 |
资助机构 | Chi-nese National Key RD Program [2016YFD0201118] ; Shanxi Province Key RD Program [201903D211001-2-4-1] ; Agricultural Sci-Tech Innovation Project Program of Shanxi Academy of Agricultural Sciences [YGC2019TD08-2] ; Agricultural Sci-Tech Innovation Research Program of Shanxi Academy of Agricultural Sciences [YCX2020402, YCX2020302] ; Prior Support Program of Shanxi Academy of Agricultural Sciences [YCX2018D2YS04] |
作者邮箱 | zmniu@126.com ; jcdao@ibcas.ac.cn |
作品OA属性 | gold |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/28495 |
专题 | 中科院北方资源植物重点实验室 |
作者单位 | 1.Shanxi Agr Univ, Coll Hort, Taiyuan 030031, Shanxi, Peoples R China 2.Chinese Acad Sci, Inst Bot, Key Lab Plant Resources, Beijing 100093, Peoples R China 3.Shanxi Agr Univ, Inst Pomol, Taiyuan 030031, Shanxi, Peoples R China |
推荐引用方式 GB/T 7714 | Lin, Lu,Niu, Zimian,Jiang, Chuangdao,et al. Influences of open-central canopy on photosynthetic parameters and fruit quality of apples (Malus x domestica) in the Loess Plateau of China[J]. HORTICULTURAL PLANT JOURNAL,2022,8(2):133-142. |
APA | Lin, Lu,Niu, Zimian,Jiang, Chuangdao,Yu, Lu,Wang, Hongning,&Qiao, Meiyu.(2022).Influences of open-central canopy on photosynthetic parameters and fruit quality of apples (Malus x domestica) in the Loess Plateau of China.HORTICULTURAL PLANT JOURNAL,8(2),133-142. |
MLA | Lin, Lu,et al."Influences of open-central canopy on photosynthetic parameters and fruit quality of apples (Malus x domestica) in the Loess Plateau of China".HORTICULTURAL PLANT JOURNAL 8.2(2022):133-142. |
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