EJPAU 2006. Nowak J. , Telesiński A. , Szymczak J. COMPARISON OF HERBICIDES CONTAINING ISOPROTURON, 2.4-D AND DICAMBA ON PHOSPHATASE ACTIVITY IN THE SOIL AND IN SPRING WHEAT (<I>Triticum aestivum</I> L.)

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.

2006
Volume 9
Issue 1

Topic:

Agronomy

ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES

Nowak J. , Telesiński A. , Szymczak J. 2006. COMPARISON OF HERBICIDES CONTAINING ISOPROTURON, 2.4-D AND DICAMBA ON PHOSPHATASE ACTIVITY IN THE SOIL AND IN SPRING WHEAT (Triticum aestivum L.), EJPAU 9(1), #17.
Available Online: http://www.ejpau.media.pl/volume9/issue1/abs-17.html

COMPARISON OF HERBICIDES CONTAINING ISOPROTURON, 2.4-D AND DICAMBA ON PHOSPHATASE ACTIVITY IN THE SOIL AND IN SPRING WHEAT (TRITICUM AESTIVUM L.)

Janina Nowak¹, Arkadiusz Telesiński², Justyna Szymczak¹
¹ Department of Biochemistry, Agriculture University of Szczecin, Poland
² Department of Biochemistry, West Pomeranian Technological University

ABSTRACT

The pot experiment examined the effect of varied doses of herbicides, namely Izoturon 500 SC (500 g isoproturon), Aminopielik Super 464 SL (344 g 2,4-D and 120 g dicamba) and Rokituron D 470 SC (250 g isoproturon, 200 g 2,4-D and 20 g dicamba) on the activity of acid and alkaline phosphatases in the soil and in spring wheat plants. The pots were filled with black earth of the granulometric composition of light lessive clay containing 1.2 – 1.8% of humus. Water emulsions of the herbicides studied were introduced into the soil at the standard, 5-fold and 25-fold higher doses, after which spring wheat was sown. The measurements of soil and plant phosphatase activities were made at respective wheat development phases. The results obtained revealed that the herbicides used significantly stimulated the activity of acid phosphatase in the soil and, at the beginning of vegetation period – also in wheat plants, as well as alkaline phosphatase in the soil. The higher the doses of Izoturon 500 SC and Rokituron D 470 SC were used, the greater was the inhibition of alkaline phosphatase activity in wheat. The correlation coefficients indicated no relationships between the changes in the activity of soil and plant phosphatases following the application of the standard and 5-fold higher dose of Izoturon 500 SC and Rokituron D 470 SC. However there was observed a significant correlation between the phosphatases activity in the soil after the application of those herbicides as well as Aminopielik Super 464 SL at the dose 25-fold higher than the standard. The activity of alkaline phosphatase in the soil following Aminopielik Super 464 SL application at all the doses applied was positively correlated with the activity of the alkaline phosphatase in wheat.

Key words: acid and alkaline phosphatase, isoproturon, 2,4-D, dicamba, soil, spring wheat.

Janina Nowak
Department of Biochemistry,
Agriculture University of Szczecin, Poland
Słowackiego 17, 71-434 Szczecin, Poland
email: jnowak@agro.ar.szczecin.pl

Arkadiusz Telesiński
Department of Biochemistry,
West Pomeranian Technological University
Słowackiego 17, 71-434 Szczecin, Poland
email: arkadiusz.telesinski@zut.edu.pl

Justyna Szymczak
Department of Biochemistry,
Agriculture University of Szczecin, Poland
Słowackiego 17, 71-434 Szczecin, Poland
email: biochem@agro.ar.szczecin.pl

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.