Effect of spatial position on twig resource allocation of Fengdan (Paeonia ostii)

Understanding how a plant allocates biomass for reproduction and the effect of location position on twigs' biomass partitioning provides essential information on how to maximise fruit yields through pruning. Fengdan (Paeonia ostii) is a variety of oil Peony newly developed in China. In this pap...

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Bibliographic Details
Published in:Annals of applied biology 2022-11, Vol.181 (3), p.347-356
Main Authors: Wang, Chengzhong, Fan, Guozhen, Li, Qingkui, Hu, Yonghong, Qian, Jianlin, Yang, Ji, Song, Zhiping
Format: Article
Language:English
Subjects:
allometric relationship
Biomass
Crop yield
Fruits
oil peony
Paeonia
Paeonia ostia
Populations
position effect
Reproduction
Resource allocation
Sitting position
Stems
trade‐off
tree architecture
Variance analysis
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Summary:Understanding how a plant allocates biomass for reproduction and the effect of location position on twigs' biomass partitioning provides essential information on how to maximise fruit yields through pruning. Fengdan (Paeonia ostii) is a variety of oil Peony newly developed in China. In this paper, the pattern of biomass allocation and allometric growth of the modules within twig (fruit twigs) of five populations of Fengdan were investigated by using standardised major axis (SMA) analyses. The ANOVA results showed that the biomass of stem, seed, husk and fruit per twig significantly varied among populations and among twigs growing at different positions within an individual plant. The top twig had the largest stem and fruit biomass. Twig showed an allometric growth relationship between reproduction and growth (SMA slope b ≠ 1). An obvious trade‐off was found between seed number and 100‐seed weight in fruits. These findings demonstrate that the seated position of the Fengdan twig significantly influences its resource allocation pattern and fruit (seed) yield, implying the efficiency of creating a suitable growth environment and optimising tree architecture in increasing oil Peony yield. The seated position of Fengdan twig significantly influences its resource allocation pattern and fruit (seed) yield, and the top twig has the largest stem and fruit biomass.
ISSN:0003-4746
1744-7348
DOI:10.1111/aab.12780