<abstract xmlns="http://www.w3.org/1999/xhtml">The effect of post-harvest irrigation and genotype on the quality components of white asparagus spears was investigated. The field experiment was conducted in 2003-2008 on a very light soil in the Bydgoszcz region. The research was based on a two-factorial split-plot design with randomly selected sub-main blocks. The first studied factor was irrigation applied as two treatments: drip irrigation and microsprinkler irrigation. Non-irrigated plants were tested as the control. The second factor considered was genotype represented by three male cultivars of the garden asparagus: ‘Gijnlim’, ‘Ramos’ and ‘Vulkan’. The irrigation started after the harvest of the spears, while the concentrations of chemical ingredients were measured in the white spears collected in the next growing period. The level of the tested components was significantly influenced by both factors studied. The average amounts of dry matter, potassium, iron and nitrates measured in the white spears were 6.37%, 268.9 mg 100 g−1 f.m., 0.29 mg 100 g−1 f.m. and 62.1 mg kg−1 f.m., respectively. Compared to the control, both irrigation treatments considerably increased the dry matter and potassium contents. The irrigation reduced the amount of nitrates, although the microsprinkler irrigation gave better results than the drip irrigation. The highest concentrations of potassium and iron were measured in the spears of ‘Ramos’, especially in the case of drip-irrigated (potassium) and non-irrigated (iron) plants. The amount of dry matter was high in the spears of ‘Ramos’, while ‘Vulkan’ presented a low tendency to accumulate nitrates.</abstract>

The effect of post-harvest irrigation and genotype on the quality components of white asparagus spears was investigated. The field experiment was conducted in 2003-2008 on a very light soil in the Bydgoszcz region. The research was based on a two-factorial split-plot design with randomly selected sub-main blocks. The first studied factor was irrigation applied as two treatments: drip irrigation and microsprinkler irrigation. Non-irrigated plants were tested as the control. The second factor considered was genotype represented by three male cultivars of the garden asparagus: ‘Gijnlim’, ‘Ramos’ and ‘Vulkan’. The irrigation started after the harvest of the spears, while the concentrations of chemical ingredients were measured in the white spears collected in the next growing period. The level of the tested components was significantly influenced by both factors studied. The average amounts of dry matter, potassium, iron and nitrates measured in the white spears were 6.37%, 268.9 mg 100 g−1 f.m., 0.29 mg 100 g−1 f.m. and 62.1 mg kg−1 f.m., respectively. Compared to the control, both irrigation treatments considerably increased the dry matter and potassium contents. The irrigation reduced the amount of nitrates, although the microsprinkler irrigation gave better results than the drip irrigation. The highest concentrations of potassium and iron were measured in the spears of ‘Ramos’, especially in the case of drip-irrigated (potassium) and non-irrigated (iron) plants. The amount of dry matter was high in the spears of ‘Ramos’, while ‘Vulkan’ presented a low tendency to accumulate nitrates.

Concentrations of some chemical components in white asparagus spears depending on the cultivar and post-harvest irrigation treatments

Department of Microbiology and Food Technology

University of Science and Technology in Bydgoszcz Bernardyńska 6

Department of Land Melioration and Agrometeorology

Institute of Plant Biology and Biotechnology

College of Food, Agricultural and Natural Resource Sciences

Department of Plant Genetics, Physiology and Biotechnology

Folia Horticulturae

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

The effect of post-harvest irrigation and genotype on the quality components of white asparagus spears was investigated. The field experiment was conducted in...

Concentrations of some chemical components in white asparagus spears depending on the cultivar and post-harvest irrigation treatments

Published Online: Jun 19, 2018

Page range: 147 - 154

Received: Nov 24, 2017

Accepted: Jan 29, 2018

DOI: https://doi.org/10.2478/fhort-2018-0015

Keywords
drip irrigation, dry matter, iron, microsprinkler irrigation, nitrates, potassium

© 2018 Dorota Wichrowska et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Concentrations of some chemical components in white asparagus spears depending on the cultivar and post-harvest irrigation treatments

Published Online: Jun 19, 2018

Page range: 147 - 154

Received: Nov 24, 2017

Accepted: Jan 29, 2018

DOI: https://doi.org/10.2478/fhort-2018-0015

Keywordsdrip irrigation, dry matter, iron, microsprinkler irrigation, nitrates, potassium

© 2018 Dorota Wichrowska et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
drip irrigation, dry matter, iron, microsprinkler irrigation, nitrates, potassium