A general non-rectangular hyperbola equation for photosynthetic light response curve of rice at various leaf ages

Abstract Photosynthetic light response (PLR) curves of leaves are usually fitted by non-rectangular hyperbola (NRH) equation, and those fitted NRH parameters may change with leaf aging. The objectives of this study were 1) to reveal the response of NRH parameters of rice leaves, light-saturated net...

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Autores principales:	Junzeng Xu, Yuping Lv, Xiaoyin Liu, Qi Wei, Zhiming Qi, Shihong Yang, Linxian Liao
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c0b1c1c642fa4b7196f19b5533bbb45e
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spelling	oai:doaj.org-article:c0b1c1c642fa4b7196f19b5533bbb45e2021-12-02T15:09:38ZA general non-rectangular hyperbola equation for photosynthetic light response curve of rice at various leaf ages10.1038/s41598-019-46248-y2045-2322https://doaj.org/article/c0b1c1c642fa4b7196f19b5533bbb45e2019-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-46248-yhttps://doaj.org/toc/2045-2322Abstract Photosynthetic light response (PLR) curves of leaves are usually fitted by non-rectangular hyperbola (NRH) equation, and those fitted NRH parameters may change with leaf aging. The objectives of this study were 1) to reveal the response of NRH parameters of rice leaves, light-saturated net photosynthetic rate (P nmax), quantum yield of assimilation (φ), dark respiration rate (R d) and convexity of the curve (k), to leaf age; and 2) to improve the performance of NRH equation in simulating the PLR curves for leaves at various ages. The PLR for rice leaves at ages of 3–53 days were measured, and the general NRH equation was developed by incorporating the relationship between NRH parameters and leaf age into the NRH equation. The results showed that the NRH parameters of P nmax, φ and R d increased rapidly to maximum at approximately 10 days and then declined linearly toward the age of 53 days. However, the value of k was not sensitive to leaf age. The general NRH equation can be used to simulate leaf PLR continuously along with leaf aging.Junzeng XuYuping LvXiaoyin LiuQi WeiZhiming QiShihong YangLinxian LiaoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-8 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Junzeng Xu Yuping Lv Xiaoyin Liu Qi Wei Zhiming Qi Shihong Yang Linxian Liao A general non-rectangular hyperbola equation for photosynthetic light response curve of rice at various leaf ages
description	Abstract Photosynthetic light response (PLR) curves of leaves are usually fitted by non-rectangular hyperbola (NRH) equation, and those fitted NRH parameters may change with leaf aging. The objectives of this study were 1) to reveal the response of NRH parameters of rice leaves, light-saturated net photosynthetic rate (P nmax), quantum yield of assimilation (φ), dark respiration rate (R d) and convexity of the curve (k), to leaf age; and 2) to improve the performance of NRH equation in simulating the PLR curves for leaves at various ages. The PLR for rice leaves at ages of 3–53 days were measured, and the general NRH equation was developed by incorporating the relationship between NRH parameters and leaf age into the NRH equation. The results showed that the NRH parameters of P nmax, φ and R d increased rapidly to maximum at approximately 10 days and then declined linearly toward the age of 53 days. However, the value of k was not sensitive to leaf age. The general NRH equation can be used to simulate leaf PLR continuously along with leaf aging.
format	article
author	Junzeng Xu Yuping Lv Xiaoyin Liu Qi Wei Zhiming Qi Shihong Yang Linxian Liao
author_facet	Junzeng Xu Yuping Lv Xiaoyin Liu Qi Wei Zhiming Qi Shihong Yang Linxian Liao
author_sort	Junzeng Xu
title	A general non-rectangular hyperbola equation for photosynthetic light response curve of rice at various leaf ages
title_short	A general non-rectangular hyperbola equation for photosynthetic light response curve of rice at various leaf ages
title_full	A general non-rectangular hyperbola equation for photosynthetic light response curve of rice at various leaf ages
title_fullStr	A general non-rectangular hyperbola equation for photosynthetic light response curve of rice at various leaf ages
title_full_unstemmed	A general non-rectangular hyperbola equation for photosynthetic light response curve of rice at various leaf ages
title_sort	general non-rectangular hyperbola equation for photosynthetic light response curve of rice at various leaf ages
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/c0b1c1c642fa4b7196f19b5533bbb45e
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A general non-rectangular hyperbola equation for photosynthetic light response curve of rice at various leaf ages

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