PJB-2018-41
Effects of shading on photosynthesis characteristics and seed yields of treepeony ‘Fengdan’ (Paeonia ostii ‘Fengdan’).
Wanfei Shan, Wenli Ji, Yanlong Zhang, Xinmiao Ji, Xiang Li, Qi Zeng, Ling Liu and Zhuyu Han
Abstract
This study investigated the effects of shading on photosynthesis, other physiological and biochemical characteristics and seed yield of tree peony (Paeonia ostii FengDan).The results showed that under the natural full sunshine, the net photosynthesis (Pn) of tree peony had a mid-day depression from 12: 00pm to 4:00pm, also the total chlorophyll and the relative content of chlorophyll a and b as well as seed yield were lower compared to 25% shading condition. There was almost no mid-day depression under the condition of 25% and 50% shading, also the total chlorophyll content and the relative content of chlorophyll a and b were both higher in comparison with the full sunshine condition. Pn and seed yeild maintained a higher level all day under 25% shading. Whereas Pn had the lowest level all day under 75% shading and the yield was also declined. It is concluded that tree peony (FengDan) would grow the best and have a high yeild under the condition of 25% shading.
To Cite this article:
Shan, W., W. Ji, Y. Zhang, X. Ji, X. Li, Q. Zeng, L. Liu and Z. Han. 2019. Effects of shading on photosynthesis characteristics and seed yields of treepeony ‘Fengdan’ (Paeonia ostii ‘Fengdan’). Pak. J. Bot., 51(3): DOI: http://dx.doi.org/10.30848/PJB2019-3(20)
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