Oilseed rape yield and its structure in relation to pest control and nitrogen fertilization levels
Wojciech Budzyński
dziekanat.wril@uwm.edu.plKatedra Produkcji Roślinnej, Uniwersytet Warmińsko-Mazurski w Olsztynie (Poland)
Krzysztof Jankowski
Katedra Produkcji Roślinnej, Uniwersytet Warmińsko-Mazurski w Olsztynie (Poland)
Abstract
The paper presents a role of yield components in creating spring oilseed rape yield under different conditions of pest control and nitrogen application. The relationships between yield and its components were estimated using the path coefficient analysis. Pest control resulted in saving 5.9 dt of seed per 1 ha. In no case the increasing of nitrogen doses stimulated a compensation of oilseed rape after injuries caused by pests. Rape reacted to increasing nitrogen doses, up to the highest one, by the rise of seed yield. The effectiveness of nitrogen application, as evaluated for 1 kg, was highest at the range up to 80 kg N·ha-1. Higher doses resulted in over 2-fold decrease of the effectiveness. Yield of rape protected against pests was positively correlated with a number of both siliques per 1 m2 and seeds per silique, whereas it was negatively correlated with 1000 seeds weight. In contrast, the yield of rape that was not protected was substantially affected by a number of seeds per silique. At a low level of nitrogen application (≤ 80 kg·ha-1), rape yield was created by all the components studied (in the case of 1000 seeds weight the path coefficient appeared to be negative). Meanwhile, at large doses of nitrogen (120–160 kg·ha-1), only the number of seeds per silique was found to have a direct effect on spring oilseed rape yield.
Keywords:
analysis of path coefficient, nitrogen application, pest control, seed yield, spring rape, yield componentsReferences
Budzyński W., Jankowski K. 2000. Wpływ azotu na plonowanie rzepaku w warunkach zróżnicowanej ochrony przed szkodnikami. W: Zbilansowane nawożenie rzepaku — aktualne problemy. Red. W. Grzebisz, AR, Poznań.
Google Scholar
Budzyński W., Ojczyk T. (red.). 1996. Rzepak — produkcja surowca olejarskiego. Wyd. ART. Olsztyn.
Google Scholar
Cheema M. A., Malik M. A, Hussain A., Shsh S. H., Basara S. M. A. 2001. Effects of time and rate of nitrogen and phosphorus application on the growth and the seed and oil yield of canola (Brassica napus L.). Agronomy and Crop Science 186: 103 — 110.
DOI: https://doi.org/10.1046/j.1439-037X.2001.00463.x
Google Scholar
Dembiński F. 1975. Rośliny Oleiste. PWN, Warszawa.
Google Scholar
Hocking P. J., Randall P. J. Demarco D., Bamforth I. 1997. Assessment of the nitrogen status of field grown canola (Brassica napus L.) by plant analyssis. Aust. J. Exp. Agric., 37: 83 — 92.
DOI: https://doi.org/10.1071/EA95068
Google Scholar
Idźkowska M., Gołaszewski J., Koczowska I., Grabowski S. 1993. Analiza współczynników ścieżek u żyta ozimego (Secale cereale L.). Cz. I. Analiza współczynników ścieżek w ocenie współzależności cech determinujących masę ziarna z kłosa. Acta Acad. Agricult. Tech. Olst., Agricultura, 56: 25 — 30.
Google Scholar
Jasińska Z., Kotecki A., Kozak M. 1997. Wpływ następczy roślin strączkowych i nawożenia azotem na rozwój i plon rzepaku jarego. Rośliny Oleiste, XVIII, 1: 199 — 208.
Google Scholar
Konys L., Wiśniewski P. 1984. Analiza ścieżkowa w układach przyczynowo-skutkowych. Rocz. AR w Poznaniu, CLIII: 37 — 56.
Google Scholar
Ojczyk T., Jankowski K. 1999. The effects of nitrogen fertilization on yield of protected and unprotected spring rape. Proc. 10th Intern. Rapeseed Congress, Canberra 26-29.09.1999. CD-ROM.
Google Scholar
Sądej W., Ciepielewska D., Nietupski M. 1996. Ochrona rzepaku jarego przed szkodnikami. Rośliny Oleiste, XVII: 353 — 360.
Google Scholar
Seta G., Drzewiecki S., Mrówczyński M. 1998. Zastosowanie nowych insektycydów w zwalczaniu słodyszka rzepakowego (Meligethes aeneus F.) na rzepaku jarym i ich wpływ na plonowanie roślin. Rośliny Oleiste, XIX: 301 — 306.
Google Scholar
Tatchell G. M. 1983. Compensation in spring sown oil seed rape (Brassica napus L.) plants in response to injury to their flower buds and pods. J. Agric. Sci., Camb., 101: 565 — 573.
DOI: https://doi.org/10.1017/S0021859600038594
Google Scholar
Toboła P., Muśnicki Cz. 2000. Efektywność nawożenia rzepaku jarego azotem. [W:] Zbilansowane nawożenie rzepaku — aktualne problemy. Red. W. Grzebisz, AR Poznań.
Google Scholar
Williams I. H., Free J. B. 1979. Compensation of oil-seed rape (Brassica napus L.) plants after damage to their buds and pods. J. Agric. Sci., Camb. 92: 53 — 59.
DOI: https://doi.org/10.1017/S0021859600060494
Google Scholar
Wright S. 1934. The method of path coefficients. Ann. Mathem. Stat. 5: 161 — 215.
DOI: https://doi.org/10.1214/aoms/1177732676
Google Scholar
Authors
Wojciech Budzyńskidziekanat.wril@uwm.edu.pl
Katedra Produkcji Roślinnej, Uniwersytet Warmińsko-Mazurski w Olsztynie Poland
Authors
Krzysztof JankowskiKatedra Produkcji Roślinnej, Uniwersytet Warmińsko-Mazurski w Olsztynie Poland
Statistics
Abstract views: 63PDF downloads: 17
License
Copyright (c) 2003 Wojciech Budzyński, Krzysztof Jankowski
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Upon submitting the article, the Authors grant the Publisher a non-exclusive and free license to use the article for an indefinite period of time throughout the world in the following fields of use:
- Production and reproduction of copies of the article using a specific technique, including printing and digital technology.
- Placing on the market, lending or renting the original or copies of the article.
- Public performance, exhibition, display, reproduction, broadcasting and re-broadcasting, as well as making the article publicly available in such a way that everyone can access it at a place and time of their choice.
- Including the article in a collective work.
- Uploading an article in electronic form to electronic platforms or otherwise introducing an article in electronic form to the Internet or other network.
- Dissemination of the article in electronic form on the Internet or other network, in collective work as well as independently.
- Making the article available in an electronic version in such a way that everyone can access it at a place and time of their choice, in particular via the Internet.
Authors by sending a request for publication:
- They consent to the publication of the article in the journal,
- They agree to give the publication a DOI (Digital Object Identifier),
- They undertake to comply with the publishing house's code of ethics in accordance with the guidelines of the Committee on Publication Ethics (COPE), (http://ihar.edu.pl/biblioteka_i_wydawnictwa.php),
- They consent to the articles being made available in electronic form under the CC BY-SA 4.0 license, in open access,
- They agree to send article metadata to commercial and non-commercial journal indexing databases.
Most read articles by the same author(s)
- Bogdan Dubis, Wojciech Budzyński, Response of naked and husked oats to date and density of sowing , Bulletin of Plant Breeding and Acclimatization Institute: No. 229 (2003): Special issue
