Evaluation of hybrid and population cultivars on standard and high-input technology in winter oilseed rape

ABSTRACT

The problem raised here is the intensification of technology in field crops of winter oilseed rape. Is there a justification for this by explaining what relationship between the yield and individual yielding traits are formed in hybrid and population cultivars. During years 2012–2015 field studies to evaluate five hybrid and five population cultivars response on the standard and high-input technology in winter oilseed rape production have been executed in Poland. High-input technology included: double foliar application (in autumn, and in spring) of micro-nutrients, additional top fertilisation of 40 kg N per ha in spring, double application of the amino-acid bio-stimulators, and additional growth regulator. According to the principle component analysis made for both technologies it was found that hybrids and population cultivars displayed varied response which is explained here on the basis of morphological, growth, and yield elements. The high-input technology improved the yield responded elements e.g. number of siliques and number of seeds per silique as well as winter hardiness. This impact was more evident for population cultivars than for hybrids. We state that high-input technology, as the proposal in this paper, that provided 9.6% increase in seed yield, is biologically justified for winter oilseed rape crop and can be recommended in North and central European countries.

KEYWORDS:

• Brassica napus var. oleifera
• population cultivars
• hybrid cultivars
• standard technology
• high-input technology

Disclosure statement

No potential conflict of interest was reported by the authors.

Note on Contributors

Wenda-Piesik Anna has completed her DSc at the age of 41 years from UTP University of Science and Technology. Currently, her possition is Associate Professor, at The Department of Agronomy, UTP in Bydgoszcz, Poland. She is the Head of The Laboratory of Experimental Methods. She published 80 original articles, the total IF is at 32,751, total number of citations is at 229, h- index 9 and has been serving as an editorial board member of repute.

Hoppe Szymon has completed his PhD in Agronomy at the age of 35 years from UTP University of Science and Technology. He is Product Manager Seed at Polish Agro Company.