Features of adaptation of photosynthesis of winter wheat plant leaves to growing conditions

Depending on the growing conditions, the intensity of photosynthesis of winter wheat plant leaves varies from 7.58 to 15.76 µmol CO2/m2s, significantly decreasing (on average by 41%) in dry and hot weather. During the day, its value varies from 7.07 to 12.48 µmol CO2/m2s, reaching a maximum (12.48 µ...

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Main Authors:	Amelin A.V., Chekalin E.I., Zaikin V.V., Ikusov R.A.
Format:	Article
Language:	English
Published:	EDP Sciences 2021-01-01
Series:	E3S Web of Conferences
Online Access:	https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/30/e3sconf_farba2021_02013.pdf

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spelling	doaj-bfbc35150fcd405ca116fac16def9ee52021-05-28T12:41:41ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012540201310.1051/e3sconf/202125402013e3sconf_farba2021_02013Features of adaptation of photosynthesis of winter wheat plant leaves to growing conditionsAmelin A.V.0Chekalin E.I.1Zaikin V.V.2Ikusov R.A.3FSBEI HE Oryol State Agrarian University, CUC Plant Genetic Resources and their useFSBEI HE Oryol State Agrarian University, CUC Plant Genetic Resources and their useFSBEI HE Oryol State Agrarian University, CUC Plant Genetic Resources and their useFSBEI HE Oryol State Agrarian University, Department of Crop Production, Breeding and Seed ProductionDepending on the growing conditions, the intensity of photosynthesis of winter wheat plant leaves varies from 7.58 to 15.76 µmol CO2/m2s, significantly decreasing (on average by 41%) in dry and hot weather. During the day, its value varies from 7.07 to 12.48 µmol CO2/m2s, reaching a maximum (12.48 µmol CO2/m2s) in the morning (from 9:00 to 11:00 am), when the air temperature is not so high (from 18 to 23°C), and the light becomes saturating (1000 -1300 µmol/m2s). In the time following, the intensity of leaf photosynthesis decreases, reaching the minimum values at 7:00 pm. At the same time, the flag leaves of plants are characterized by the highest photosynthetic activity - from 12.56 to 16.16 µmol CO2/m2s, exceeding the pre-flag leaves by 1.6 times, and the lower ones by 3.1 times. The stomatal apparatus plays an important role in the adaptation of leaf photosynthesis to environmental factors. The correlation coefficient of photosynthesis intensity with stomatal conductivity in different leaf locations varied from 0.97 to 0.98.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/30/e3sconf_farba2021_02013.pdf
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Amelin A.V. Chekalin E.I. Zaikin V.V. Ikusov R.A.
spellingShingle	Amelin A.V. Chekalin E.I. Zaikin V.V. Ikusov R.A. Features of adaptation of photosynthesis of winter wheat plant leaves to growing conditions E3S Web of Conferences
author_facet	Amelin A.V. Chekalin E.I. Zaikin V.V. Ikusov R.A.
author_sort	Amelin A.V.
title	Features of adaptation of photosynthesis of winter wheat plant leaves to growing conditions
title_short	Features of adaptation of photosynthesis of winter wheat plant leaves to growing conditions
title_full	Features of adaptation of photosynthesis of winter wheat plant leaves to growing conditions
title_fullStr	Features of adaptation of photosynthesis of winter wheat plant leaves to growing conditions
title_full_unstemmed	Features of adaptation of photosynthesis of winter wheat plant leaves to growing conditions
title_sort	features of adaptation of photosynthesis of winter wheat plant leaves to growing conditions
publisher	EDP Sciences
series	E3S Web of Conferences
issn	2267-1242
publishDate	2021-01-01
description	Depending on the growing conditions, the intensity of photosynthesis of winter wheat plant leaves varies from 7.58 to 15.76 µmol CO2/m2s, significantly decreasing (on average by 41%) in dry and hot weather. During the day, its value varies from 7.07 to 12.48 µmol CO2/m2s, reaching a maximum (12.48 µmol CO2/m2s) in the morning (from 9:00 to 11:00 am), when the air temperature is not so high (from 18 to 23°C), and the light becomes saturating (1000 -1300 µmol/m2s). In the time following, the intensity of leaf photosynthesis decreases, reaching the minimum values at 7:00 pm. At the same time, the flag leaves of plants are characterized by the highest photosynthetic activity - from 12.56 to 16.16 µmol CO2/m2s, exceeding the pre-flag leaves by 1.6 times, and the lower ones by 3.1 times. The stomatal apparatus plays an important role in the adaptation of leaf photosynthesis to environmental factors. The correlation coefficient of photosynthesis intensity with stomatal conductivity in different leaf locations varied from 0.97 to 0.98.
url	https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/30/e3sconf_farba2021_02013.pdf
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Features of adaptation of photosynthesis of winter wheat plant leaves to growing conditions

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