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Growth and Distribution of Boron in Oilseed Rape (Brassica napus L.) as Affected by Boron Supply

Oilseed rape (Brassica napus L.) is one of the most important oilseed crops. It has relatively high boron (B) requirements for growth. In this study, a hydroponic experiment was performed to determine the critical B requirement and B distribution in B. napus. The plants were grown for four weeks at...

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Autores principales: Dinh, Anh Quang, Naeem, Asif, Mühling, Karl H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9608877/
https://www.ncbi.nlm.nih.gov/pubmed/36297770
http://dx.doi.org/10.3390/plants11202746
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author Dinh, Anh Quang
Naeem, Asif
Mühling, Karl H.
author_facet Dinh, Anh Quang
Naeem, Asif
Mühling, Karl H.
author_sort Dinh, Anh Quang
collection PubMed
description Oilseed rape (Brassica napus L.) is one of the most important oilseed crops. It has relatively high boron (B) requirements for growth. In this study, a hydroponic experiment was performed to determine the critical B requirement and B distribution in B. napus. The plants were grown for four weeks at a range of B levels (from 0.25 to 1000 µM) supplied in a nutrient solution. The results showed significant differences in the root and shoot dry matter and B accumulation in these tissues among the supplied B levels. Severe visible symptoms of B deficiency were observed on the leaves at levels lower than 1 µM B and toxicity at 1000 µM B in the nutrient solution. The maximum shoot and root dry matter were recorded at 25 µM B in the nutrient solution. The plants supplied with the lowest and the highest B levels produced 35% and 37% less shoot dry matter than those supplied with 25 µM B, while the corresponding decreases in the root dry matter were 48% and 36%, respectively. The critical concentration of B, which is the lowest concentration at which plants produce 90% of the maximum shoot dry matter, was proven to be 1 µM B for oilseed rape. At this level of external B supply, the B concentration in the shoot was 26.9 mg kg(−1) DM. It was found that with the increase in B levels in the nutrient solution, the relative distribution of B between the roots and the shoots shifted in favor of the shoots.
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spelling pubmed-96088772022-10-28 Growth and Distribution of Boron in Oilseed Rape (Brassica napus L.) as Affected by Boron Supply Dinh, Anh Quang Naeem, Asif Mühling, Karl H. Plants (Basel) Article Oilseed rape (Brassica napus L.) is one of the most important oilseed crops. It has relatively high boron (B) requirements for growth. In this study, a hydroponic experiment was performed to determine the critical B requirement and B distribution in B. napus. The plants were grown for four weeks at a range of B levels (from 0.25 to 1000 µM) supplied in a nutrient solution. The results showed significant differences in the root and shoot dry matter and B accumulation in these tissues among the supplied B levels. Severe visible symptoms of B deficiency were observed on the leaves at levels lower than 1 µM B and toxicity at 1000 µM B in the nutrient solution. The maximum shoot and root dry matter were recorded at 25 µM B in the nutrient solution. The plants supplied with the lowest and the highest B levels produced 35% and 37% less shoot dry matter than those supplied with 25 µM B, while the corresponding decreases in the root dry matter were 48% and 36%, respectively. The critical concentration of B, which is the lowest concentration at which plants produce 90% of the maximum shoot dry matter, was proven to be 1 µM B for oilseed rape. At this level of external B supply, the B concentration in the shoot was 26.9 mg kg(−1) DM. It was found that with the increase in B levels in the nutrient solution, the relative distribution of B between the roots and the shoots shifted in favor of the shoots. MDPI 2022-10-17 /pmc/articles/PMC9608877/ /pubmed/36297770 http://dx.doi.org/10.3390/plants11202746 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Dinh, Anh Quang
Naeem, Asif
Mühling, Karl H.
Growth and Distribution of Boron in Oilseed Rape (Brassica napus L.) as Affected by Boron Supply
title Growth and Distribution of Boron in Oilseed Rape (Brassica napus L.) as Affected by Boron Supply
title_full Growth and Distribution of Boron in Oilseed Rape (Brassica napus L.) as Affected by Boron Supply
title_fullStr Growth and Distribution of Boron in Oilseed Rape (Brassica napus L.) as Affected by Boron Supply
title_full_unstemmed Growth and Distribution of Boron in Oilseed Rape (Brassica napus L.) as Affected by Boron Supply
title_short Growth and Distribution of Boron in Oilseed Rape (Brassica napus L.) as Affected by Boron Supply
title_sort growth and distribution of boron in oilseed rape (brassica napus l.) as affected by boron supply
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9608877/
https://www.ncbi.nlm.nih.gov/pubmed/36297770
http://dx.doi.org/10.3390/plants11202746
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