Cargando…
Impacts of nitrogen fertilization rate on the root yield, starch yield and starch physicochemical properties of the sweet potato cultivar Jishu 25
In recent years, the sweet potato cultivar Jishu 25 has exhibited good characteristics for starch processing in northern China. The storage root dry matter yields of this cultivar can exceed one ton per mu (1/15 of a hectare) at nitrogen (N) rates of 60–90 kg ha(-1) based on soil nutrient content. H...
Autores principales: | , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6705776/ https://www.ncbi.nlm.nih.gov/pubmed/31437204 http://dx.doi.org/10.1371/journal.pone.0221351 |
_version_ | 1783445623418126336 |
---|---|
author | Duan, Wenxue Zhang, Haiyan Xie, Beitao Wang, Baoqing Zhang, Liming |
author_facet | Duan, Wenxue Zhang, Haiyan Xie, Beitao Wang, Baoqing Zhang, Liming |
author_sort | Duan, Wenxue |
collection | PubMed |
description | In recent years, the sweet potato cultivar Jishu 25 has exhibited good characteristics for starch processing in northern China. The storage root dry matter yields of this cultivar can exceed one ton per mu (1/15 of a hectare) at nitrogen (N) rates of 60–90 kg ha(-1) based on soil nutrient content. However, the effect of N fertilizer on the physicochemical properties of starches isolated from this cultivar has not been reported. In order to evaluate these effects, three different N rates, 0 (control, N0), 75 (N1), and 150 kg ha(-1) (N2), were selected for a field experiment in 2017. The results showed that N1 exhibited the highest storage root yield and starch yield. Compared to the control group, N fertilizer significantly increased the total starch content while no significant difference was found in these between the N1 and N2 groups. The amylose (AM) content was highest in the N2 group and lowest in the N0 group. In addition, N fertilizer exhibited no significant effects on the values of [D(v, 0.9)], D [4, 3] and D [3, 2]. Compared to the control group, N1 demonstrated significantly higher setback viscosity (SV), while N2 showed significantly higher peak viscosity (PV), cold paste viscosity (CPV) and SV. However, there were no significant differences in the hot paste viscosity (HPV), peak time and pasting temperature between the N1 and N2 groups. For the thermal properties of starch, there were no significant differences in peak temperature (T(p)), conclusion temperature (T(c)) or gelatinization enthalpy (ΔH) between the N1 and N2 groups. Overall, for the starch samples of cultivar Jishu 25, N fertilizer exerts significant effects on the starch content, AM content and viscosity properties but little effect on the particle size distribution and ΔH. 75 kg N ha(-1) can easily lead to substantial planting benefits from the high storage root yield, dry matter yield and total starch content of this cultivar. |
format | Online Article Text |
id | pubmed-6705776 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-67057762019-09-04 Impacts of nitrogen fertilization rate on the root yield, starch yield and starch physicochemical properties of the sweet potato cultivar Jishu 25 Duan, Wenxue Zhang, Haiyan Xie, Beitao Wang, Baoqing Zhang, Liming PLoS One Research Article In recent years, the sweet potato cultivar Jishu 25 has exhibited good characteristics for starch processing in northern China. The storage root dry matter yields of this cultivar can exceed one ton per mu (1/15 of a hectare) at nitrogen (N) rates of 60–90 kg ha(-1) based on soil nutrient content. However, the effect of N fertilizer on the physicochemical properties of starches isolated from this cultivar has not been reported. In order to evaluate these effects, three different N rates, 0 (control, N0), 75 (N1), and 150 kg ha(-1) (N2), were selected for a field experiment in 2017. The results showed that N1 exhibited the highest storage root yield and starch yield. Compared to the control group, N fertilizer significantly increased the total starch content while no significant difference was found in these between the N1 and N2 groups. The amylose (AM) content was highest in the N2 group and lowest in the N0 group. In addition, N fertilizer exhibited no significant effects on the values of [D(v, 0.9)], D [4, 3] and D [3, 2]. Compared to the control group, N1 demonstrated significantly higher setback viscosity (SV), while N2 showed significantly higher peak viscosity (PV), cold paste viscosity (CPV) and SV. However, there were no significant differences in the hot paste viscosity (HPV), peak time and pasting temperature between the N1 and N2 groups. For the thermal properties of starch, there were no significant differences in peak temperature (T(p)), conclusion temperature (T(c)) or gelatinization enthalpy (ΔH) between the N1 and N2 groups. Overall, for the starch samples of cultivar Jishu 25, N fertilizer exerts significant effects on the starch content, AM content and viscosity properties but little effect on the particle size distribution and ΔH. 75 kg N ha(-1) can easily lead to substantial planting benefits from the high storage root yield, dry matter yield and total starch content of this cultivar. Public Library of Science 2019-08-22 /pmc/articles/PMC6705776/ /pubmed/31437204 http://dx.doi.org/10.1371/journal.pone.0221351 Text en © 2019 Duan 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 Duan, Wenxue Zhang, Haiyan Xie, Beitao Wang, Baoqing Zhang, Liming Impacts of nitrogen fertilization rate on the root yield, starch yield and starch physicochemical properties of the sweet potato cultivar Jishu 25 |
title | Impacts of nitrogen fertilization rate on the root yield, starch yield and starch physicochemical properties of the sweet potato cultivar Jishu 25 |
title_full | Impacts of nitrogen fertilization rate on the root yield, starch yield and starch physicochemical properties of the sweet potato cultivar Jishu 25 |
title_fullStr | Impacts of nitrogen fertilization rate on the root yield, starch yield and starch physicochemical properties of the sweet potato cultivar Jishu 25 |
title_full_unstemmed | Impacts of nitrogen fertilization rate on the root yield, starch yield and starch physicochemical properties of the sweet potato cultivar Jishu 25 |
title_short | Impacts of nitrogen fertilization rate on the root yield, starch yield and starch physicochemical properties of the sweet potato cultivar Jishu 25 |
title_sort | impacts of nitrogen fertilization rate on the root yield, starch yield and starch physicochemical properties of the sweet potato cultivar jishu 25 |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6705776/ https://www.ncbi.nlm.nih.gov/pubmed/31437204 http://dx.doi.org/10.1371/journal.pone.0221351 |
work_keys_str_mv | AT duanwenxue impactsofnitrogenfertilizationrateontherootyieldstarchyieldandstarchphysicochemicalpropertiesofthesweetpotatocultivarjishu25 AT zhanghaiyan impactsofnitrogenfertilizationrateontherootyieldstarchyieldandstarchphysicochemicalpropertiesofthesweetpotatocultivarjishu25 AT xiebeitao impactsofnitrogenfertilizationrateontherootyieldstarchyieldandstarchphysicochemicalpropertiesofthesweetpotatocultivarjishu25 AT wangbaoqing impactsofnitrogenfertilizationrateontherootyieldstarchyieldandstarchphysicochemicalpropertiesofthesweetpotatocultivarjishu25 AT zhangliming impactsofnitrogenfertilizationrateontherootyieldstarchyieldandstarchphysicochemicalpropertiesofthesweetpotatocultivarjishu25 |