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Physiological Mechanisms behind Differences in Pod Shattering Resistance in Rapeseed (Brassica napus L.) Varieties

Pod shattering resistance index (SRI) is a key factor affecting the mechanical harvesting of rapeseed. Research on the differences in pod shattering resistance levels of various rapeseed varieties can provide a theoretical basis for varietal breeding and application in mechanical harvesting. The ind...

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Autores principales: Kuai, Jie, Sun, Yingying, Liu, Tingting, Zhang, Peipei, Zhou, Min, Wu, Jiangsheng, Zhou, Guangsheng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4907463/
https://www.ncbi.nlm.nih.gov/pubmed/27299997
http://dx.doi.org/10.1371/journal.pone.0157341
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author Kuai, Jie
Sun, Yingying
Liu, Tingting
Zhang, Peipei
Zhou, Min
Wu, Jiangsheng
Zhou, Guangsheng
author_facet Kuai, Jie
Sun, Yingying
Liu, Tingting
Zhang, Peipei
Zhou, Min
Wu, Jiangsheng
Zhou, Guangsheng
author_sort Kuai, Jie
collection PubMed
description Pod shattering resistance index (SRI) is a key factor affecting the mechanical harvesting of rapeseed. Research on the differences in pod shattering resistance levels of various rapeseed varieties can provide a theoretical basis for varietal breeding and application in mechanical harvesting. The indicators on pod shattering resistance including pod morphology and wall components were evaluated on eight hybrids and open pollinators, respectively, during 2012–2014. The results showed the following: (1) From the current study, SRI varied greatly with variety, and conventional varieties had stronger resistance than hybrid according to the physiological indexes. and (2) Under the experimental conditions, the SRI was linearly related to pod wall weight and the water content in pod walls, and the goodness-of-fit measurements for the regression model of the SRI based on pod wall weight and water content were 0.584** and 0.377*, respectively, reaching the significant level. This illustrated that pod wall weight and the water content in pod walls determined the SRI. (3) Compared with the relative contents of biochemical components in pod walls, the contents of particular biochemical components in pod walls had closer correlations with SRI. Among the biochemical components, the hemicellulose content was the decisive factor for the SRI.
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spelling pubmed-49074632016-07-18 Physiological Mechanisms behind Differences in Pod Shattering Resistance in Rapeseed (Brassica napus L.) Varieties Kuai, Jie Sun, Yingying Liu, Tingting Zhang, Peipei Zhou, Min Wu, Jiangsheng Zhou, Guangsheng PLoS One Research Article Pod shattering resistance index (SRI) is a key factor affecting the mechanical harvesting of rapeseed. Research on the differences in pod shattering resistance levels of various rapeseed varieties can provide a theoretical basis for varietal breeding and application in mechanical harvesting. The indicators on pod shattering resistance including pod morphology and wall components were evaluated on eight hybrids and open pollinators, respectively, during 2012–2014. The results showed the following: (1) From the current study, SRI varied greatly with variety, and conventional varieties had stronger resistance than hybrid according to the physiological indexes. and (2) Under the experimental conditions, the SRI was linearly related to pod wall weight and the water content in pod walls, and the goodness-of-fit measurements for the regression model of the SRI based on pod wall weight and water content were 0.584** and 0.377*, respectively, reaching the significant level. This illustrated that pod wall weight and the water content in pod walls determined the SRI. (3) Compared with the relative contents of biochemical components in pod walls, the contents of particular biochemical components in pod walls had closer correlations with SRI. Among the biochemical components, the hemicellulose content was the decisive factor for the SRI. Public Library of Science 2016-06-14 /pmc/articles/PMC4907463/ /pubmed/27299997 http://dx.doi.org/10.1371/journal.pone.0157341 Text en © 2016 Kuai et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Kuai, Jie
Sun, Yingying
Liu, Tingting
Zhang, Peipei
Zhou, Min
Wu, Jiangsheng
Zhou, Guangsheng
Physiological Mechanisms behind Differences in Pod Shattering Resistance in Rapeseed (Brassica napus L.) Varieties
title Physiological Mechanisms behind Differences in Pod Shattering Resistance in Rapeseed (Brassica napus L.) Varieties
title_full Physiological Mechanisms behind Differences in Pod Shattering Resistance in Rapeseed (Brassica napus L.) Varieties
title_fullStr Physiological Mechanisms behind Differences in Pod Shattering Resistance in Rapeseed (Brassica napus L.) Varieties
title_full_unstemmed Physiological Mechanisms behind Differences in Pod Shattering Resistance in Rapeseed (Brassica napus L.) Varieties
title_short Physiological Mechanisms behind Differences in Pod Shattering Resistance in Rapeseed (Brassica napus L.) Varieties
title_sort physiological mechanisms behind differences in pod shattering resistance in rapeseed (brassica napus l.) varieties
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4907463/
https://www.ncbi.nlm.nih.gov/pubmed/27299997
http://dx.doi.org/10.1371/journal.pone.0157341
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