Effect of growth regulator Atonik on some apple cultivars - effect on the shoots growth
1996
Koupil, S. (Vysoka Skola Pedagogicka, Hradec Kralove (Czech Republic))
The effect of Atonik on the growth of apple shoots and chemical composition of leaves in apple cultivars Gloster, Idared, Melrose and Starkrimson in 1993-1995, was studied. Atonik was applied as a foliar spray in 0,05 % concentration and in phenological phase C3-D. Atonik, with the exception of cultivar Gloster, statistically significantly stimulated the growth of shoots (terminal shoot length) by 9.0-48.1 %. Relative growth rate was not statistically significantly influenced. Increase of Ca and Mg content, the decrease of N and K content and of K:(Ca+Mg) ratio in leaves was determined. Chemical composition of Atonik: 0.1 % sodium-5-nitroguajacolate, 0.2 % sodium-1-nitrophenolate, 0.3 % sodium-4-nitrophenolate.
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