PJA     
     ZESZYT Nr 2 / 2010    Abstrakty
     Volume No 2/2010     Abstracts
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5.The effect of Atonik AL application on growth and development of motherwort
(Leonurus cardiaca L.) depending on age of plant
 - Anna Kiełtyka-Dadasiewicz

Abstract.
In the paper there are described the effects of foliar application of Atonik AL (0.2% solution) on the growth and development of motherwort (Leonurus cardiaca L.) plants in the  first, second and third year of vegetation.  The experiment was performed in years 2001–2004 on brown sandy loam soil. 1-year- old plants were sprayed twice (at seeding and three weeks later);
2-year and 3-year-old – three times: at rosette stage, three weeks later and after fi rst harvest.

In the experiment there were stated beneficial effects of the preparation on plants morphological features, especially in the first and second year of vegetation (stems
were higher thicker, more branched and they produced longer inflorescences). Beneficial infl uence of Atonik on the growth and development plants resulted in signifi cant increase of air dry mass of 1- and 2-year-old plants. In case of 3-year-old plants positive effect of Atonik regarded only height of plants and length of in florescence.  

key words: Leonurus cardiaca, Atonik,  plant growth and development