Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.
2013
Volume 16
Issue 2
Topic:
Agronomy
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Szulc P. , Bocianowski J. , Rybus-Zając M. 2013. INFLUENCE OF SOIL SUPPLEMENTATION WITH NITROGEN AND MAGNESIUM ON THE SIZE OF ASSIMILATION AREA OF MAIZE CULTIVARS (ZEA MAYS L.) DIFFERING IN GENETIC PROFILE, EJPAU 16(2), #01.
Available Online: http://www.ejpau.media.pl/volume16/issue2/abs-01.html

INFLUENCE OF SOIL SUPPLEMENTATION WITH NITROGEN AND MAGNESIUM ON THE SIZE OF ASSIMILATION AREA OF MAIZE CULTIVARS (ZEA MAYS L.) DIFFERING IN GENETIC PROFILE

Piotr Szulc1, Jan Bocianowski2, Magdalena Rybus-Zając3
1 Department of Agronomy, Poznań University of Life Sciences, Poland
2 Department of Mathematical and Statistical Methods, Poznań University of Life Sciences
3 Department of Plant Physiology, Poznań University of Life Sciences, Poland

 

ABSTRACT

Measurements of maize leaves aim at assessing the photosynthetic capacity of a given species and estimating the impact of habitat and agronomic factors on the size of photosynthetic capacity. The paper presents the results of three-year field experiments whose purpose was to analyze the growth of active organs in the process of photosynthesis of two different maize hybrid types, depending on dose of nitrogen and magnesium in the cob flowering stage. The assessment of the leaf area growth was made based on the assimilation area of a single plant and specific leaf area, leaf weight fraction, stem and ear weight fraction, leaf area index. We found that the "stay-green" hybrid developed fewer leaves per plant, while at the same time their weight increased, compared to the traditional variety. The hybrid ES Paroli SG was characterized by a greater total leaf blade area per plant and LAI.

Key words: maize, stay-green, nitrogen, magnesium, acid invertase.


Piotr Szulc
Department of Agronomy, Poznań University of Life Sciences, Poland
Dojazd 11
60-632 Poznań
Poland
email: pszulc@up.poznan.pl

Jan Bocianowski
Department of Mathematical and Statistical Methods, Poznań University of Life Sciences
Phone: +48618487140
Fax: +48618487140
Wojska Polskiego 28
60-637 Poznań
Poland
email: jboc@up.poznan.pl

Magdalena Rybus-Zając
Department of Plant Physiology, Poznań University of Life Sciences, Poland
Wołyńska 35
60-637 Poznań
Poland

Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.