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Effects of crop load on distribution and utilization of (13)C and (15)N and fruit quality for dwarf apple trees

In order to define the effects of fruit crop load on the distribution and utilization of carbon and nitrogen in dwarf apple trees, we conducted three crop load levels (High-crop load, 6 fruits per trunk cross-sectional area (cm(2), TCA)), Medium-crop load (4 fruits cm(−2) TCA), Low-crop load (2 frui...

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Autores principales: Ding, Ning, Chen, Qian, Zhu, Zhanling, Peng, Ling, Ge, Shunfeng, Jiang, Yuanmao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5658436/
https://www.ncbi.nlm.nih.gov/pubmed/29074869
http://dx.doi.org/10.1038/s41598-017-14509-3
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author Ding, Ning
Chen, Qian
Zhu, Zhanling
Peng, Ling
Ge, Shunfeng
Jiang, Yuanmao
author_facet Ding, Ning
Chen, Qian
Zhu, Zhanling
Peng, Ling
Ge, Shunfeng
Jiang, Yuanmao
author_sort Ding, Ning
collection PubMed
description In order to define the effects of fruit crop load on the distribution and utilization of carbon and nitrogen in dwarf apple trees, we conducted three crop load levels (High-crop load, 6 fruits per trunk cross-sectional area (cm(2), TCA)), Medium-crop load (4 fruits cm(−2) TCA), Low-crop load (2 fruits cm(−2) TCA)) in 2014 and 2015. The results indicated that the (15)N derived from fertilizer (Ndff) values of fruits decreased with the reduction of crop load, but the Ndff values of annual branches, leaves and roots increased. The plant (15)N-urea utilization rates on Medium and Low-crop load were 1.12–1.35 times higher than the High-crop load. With the reduction of crop load, the distribution rate of (13)C and (15)N in fruits was gradually reduced, but in contrast, the distribution of (13)C and (15)N gradually increased in annual branches, leaves and roots. Compared with High-crop load, the Medium and Low-crop load significantly improved fruit quality p < 0.05. Hence, controlling fruit load effectively regulated the distribution of carbon and nitrogen in plants, improved the nitrogen utilization rate and fruit quality. The appropriate crop load level for mature M.26 interstocks apple orchards was deemed to be 4.0 fruits cm(−2) TCA.
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spelling pubmed-56584362017-10-31 Effects of crop load on distribution and utilization of (13)C and (15)N and fruit quality for dwarf apple trees Ding, Ning Chen, Qian Zhu, Zhanling Peng, Ling Ge, Shunfeng Jiang, Yuanmao Sci Rep Article In order to define the effects of fruit crop load on the distribution and utilization of carbon and nitrogen in dwarf apple trees, we conducted three crop load levels (High-crop load, 6 fruits per trunk cross-sectional area (cm(2), TCA)), Medium-crop load (4 fruits cm(−2) TCA), Low-crop load (2 fruits cm(−2) TCA)) in 2014 and 2015. The results indicated that the (15)N derived from fertilizer (Ndff) values of fruits decreased with the reduction of crop load, but the Ndff values of annual branches, leaves and roots increased. The plant (15)N-urea utilization rates on Medium and Low-crop load were 1.12–1.35 times higher than the High-crop load. With the reduction of crop load, the distribution rate of (13)C and (15)N in fruits was gradually reduced, but in contrast, the distribution of (13)C and (15)N gradually increased in annual branches, leaves and roots. Compared with High-crop load, the Medium and Low-crop load significantly improved fruit quality p < 0.05. Hence, controlling fruit load effectively regulated the distribution of carbon and nitrogen in plants, improved the nitrogen utilization rate and fruit quality. The appropriate crop load level for mature M.26 interstocks apple orchards was deemed to be 4.0 fruits cm(−2) TCA. Nature Publishing Group UK 2017-10-26 /pmc/articles/PMC5658436/ /pubmed/29074869 http://dx.doi.org/10.1038/s41598-017-14509-3 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Ding, Ning
Chen, Qian
Zhu, Zhanling
Peng, Ling
Ge, Shunfeng
Jiang, Yuanmao
Effects of crop load on distribution and utilization of (13)C and (15)N and fruit quality for dwarf apple trees
title Effects of crop load on distribution and utilization of (13)C and (15)N and fruit quality for dwarf apple trees
title_full Effects of crop load on distribution and utilization of (13)C and (15)N and fruit quality for dwarf apple trees
title_fullStr Effects of crop load on distribution and utilization of (13)C and (15)N and fruit quality for dwarf apple trees
title_full_unstemmed Effects of crop load on distribution and utilization of (13)C and (15)N and fruit quality for dwarf apple trees
title_short Effects of crop load on distribution and utilization of (13)C and (15)N and fruit quality for dwarf apple trees
title_sort effects of crop load on distribution and utilization of (13)c and (15)n and fruit quality for dwarf apple trees
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5658436/
https://www.ncbi.nlm.nih.gov/pubmed/29074869
http://dx.doi.org/10.1038/s41598-017-14509-3
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