Limits...
Salinity-induced changes in the morphology and major mineral nutrient composition of purslane (Portulaca oleracea L.) accessions.

Alam MA, Juraimi AS, Rafii MY, Hamid AA, Aslani F, Hakim MA - Biol. Res. (2016)

Bottom Line: Most of the morphological traits measured were reduced at varied salinity levels (0.0, 8, 16, 24 and 32 dS m(-1)), but plant height was found to increase in Ac1 at 16 dS m(-1) salinity, and Ac13 was the most affected accession.The highest fresh and dry weight reductions were noted in Ac8 and Ac6, respectively, at 32 dS m(-1) salinity, whereas the highest increase in both fresh and dry weight was recorded in Ac9 at 24 dS m(-1) salinity compared to the control.In contrast, at lower salinity levels, all of the measured mineral levels were found to increase and later decrease with increasing salinity, but the performance of different accessions was different depending on the salinity level.

View Article: PubMed Central - PubMed

Affiliation: School of Agriculture Science and Biotechnology, Faculty of Bioresources and Food Industry, Universiti Sultan Zainal Abidin, Tembila Campus, 22200, Besut, Terengganu, Malaysia. amirulalam@unisza.edu.my.

ABSTRACT
This study was undertaken to determine the effects of varied salinity regimes on the morphological traits (plant height, number of leaves, number of flowers, fresh and dry weight) and major mineral composition of 13 selected purslane accessions. Most of the morphological traits measured were reduced at varied salinity levels (0.0, 8, 16, 24 and 32 dS m(-1)), but plant height was found to increase in Ac1 at 16 dS m(-1) salinity, and Ac13 was the most affected accession. The highest reductions in the number of leaves and number of flowers were recorded in Ac13 at 32 dS m(-1) salinity compared to the control. The highest fresh and dry weight reductions were noted in Ac8 and Ac6, respectively, at 32 dS m(-1) salinity, whereas the highest increase in both fresh and dry weight was recorded in Ac9 at 24 dS m(-1) salinity compared to the control. In contrast, at lower salinity levels, all of the measured mineral levels were found to increase and later decrease with increasing salinity, but the performance of different accessions was different depending on the salinity level. A dendrogram was also constructed by UPGMA based on the morphological traits and mineral compositions, in which the 13 accessions were grouped into 5 clusters, indicating greater diversity among them. A three-dimensional principal component analysis also confirmed the output of grouping from cluster analysis.

No MeSH data available.


A three-dimensional PCA plot indicating variations among 13 salinity tolerant purslane accessions
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

License 1 - License 2
getmorefigures.php?uid=PMC4836151&req=5

Fig4: A three-dimensional PCA plot indicating variations among 13 salinity tolerant purslane accessions

Mentions: To assess the patterns of variation, a UPGMA cluster analysis and PCA were performed using the measured parameters. All 13 purslane accessions were grouped into five distinct clusters at a 1.19 similarity coefficient level (Fig. 2). Among the 5 clusters, Ac9 was separated from the others and formed cluster V, Ac12 solely constituted cluster IV, and Ac13 was alone in cluster III. Cluster II was the largest group, consisting of Ac3, Ac4, Ac8, Ac10, and Ac11. The cluster I was formed with Ac1, Ac2, Ac5 and Ac7. The biplot of the 13 salinity tolerant purslane accessions, representing the variations among the measured parameters, are shown in Fig. 3. The patterns of the cluster analysis were also confirmed with a PCA with a three-dimensional (3D, Fig. 4) plot, which also gave results similar to those of the dendrogram (Fig. 2). The principal components analysis (PCA) confirmed 82.9 % of the total variation among all of the accessions studied (Table 14).Fig. 2


Salinity-induced changes in the morphology and major mineral nutrient composition of purslane (Portulaca oleracea L.) accessions.

Alam MA, Juraimi AS, Rafii MY, Hamid AA, Aslani F, Hakim MA - Biol. Res. (2016)

A three-dimensional PCA plot indicating variations among 13 salinity tolerant purslane accessions
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4836151&req=5

Fig4: A three-dimensional PCA plot indicating variations among 13 salinity tolerant purslane accessions
Mentions: To assess the patterns of variation, a UPGMA cluster analysis and PCA were performed using the measured parameters. All 13 purslane accessions were grouped into five distinct clusters at a 1.19 similarity coefficient level (Fig. 2). Among the 5 clusters, Ac9 was separated from the others and formed cluster V, Ac12 solely constituted cluster IV, and Ac13 was alone in cluster III. Cluster II was the largest group, consisting of Ac3, Ac4, Ac8, Ac10, and Ac11. The cluster I was formed with Ac1, Ac2, Ac5 and Ac7. The biplot of the 13 salinity tolerant purslane accessions, representing the variations among the measured parameters, are shown in Fig. 3. The patterns of the cluster analysis were also confirmed with a PCA with a three-dimensional (3D, Fig. 4) plot, which also gave results similar to those of the dendrogram (Fig. 2). The principal components analysis (PCA) confirmed 82.9 % of the total variation among all of the accessions studied (Table 14).Fig. 2

Bottom Line: Most of the morphological traits measured were reduced at varied salinity levels (0.0, 8, 16, 24 and 32 dS m(-1)), but plant height was found to increase in Ac1 at 16 dS m(-1) salinity, and Ac13 was the most affected accession.The highest fresh and dry weight reductions were noted in Ac8 and Ac6, respectively, at 32 dS m(-1) salinity, whereas the highest increase in both fresh and dry weight was recorded in Ac9 at 24 dS m(-1) salinity compared to the control.In contrast, at lower salinity levels, all of the measured mineral levels were found to increase and later decrease with increasing salinity, but the performance of different accessions was different depending on the salinity level.

View Article: PubMed Central - PubMed

Affiliation: School of Agriculture Science and Biotechnology, Faculty of Bioresources and Food Industry, Universiti Sultan Zainal Abidin, Tembila Campus, 22200, Besut, Terengganu, Malaysia. amirulalam@unisza.edu.my.

ABSTRACT
This study was undertaken to determine the effects of varied salinity regimes on the morphological traits (plant height, number of leaves, number of flowers, fresh and dry weight) and major mineral composition of 13 selected purslane accessions. Most of the morphological traits measured were reduced at varied salinity levels (0.0, 8, 16, 24 and 32 dS m(-1)), but plant height was found to increase in Ac1 at 16 dS m(-1) salinity, and Ac13 was the most affected accession. The highest reductions in the number of leaves and number of flowers were recorded in Ac13 at 32 dS m(-1) salinity compared to the control. The highest fresh and dry weight reductions were noted in Ac8 and Ac6, respectively, at 32 dS m(-1) salinity, whereas the highest increase in both fresh and dry weight was recorded in Ac9 at 24 dS m(-1) salinity compared to the control. In contrast, at lower salinity levels, all of the measured mineral levels were found to increase and later decrease with increasing salinity, but the performance of different accessions was different depending on the salinity level. A dendrogram was also constructed by UPGMA based on the morphological traits and mineral compositions, in which the 13 accessions were grouped into 5 clusters, indicating greater diversity among them. A three-dimensional principal component analysis also confirmed the output of grouping from cluster analysis.

No MeSH data available.