Morphoanatomical Changes at Cucumber (Cucumis sativa L.) Under Iinfluence of Different 2,4-D Concentrations

  • Suzana Kratovalieva
  • Lenka Cvetanovska

Abstract

Influence of synthetic plant growth regulator 2,4-D to somemorphoanatomical parameters at cucumber (Cucumis sativa L.) has beenresearched. In the form of water solution through the soil in the rosette phase2,4-D has been applied in followed concentrations: 2,0; 4,0 and 8,0 mg/l.Paralleled with those variants has been performed a control plant group treatedwith equally water volume. Analyze samples have been taken after 15, 30 and 45day after hormone treatment. Obtained results pointed out that after 15 and 30days 2,4-D has been influenced stimulate on morphological parameters valueswhile stem elongation has been stimulated under 2,0 mg/l only, but after 45 daysonly 8,0 mg/l has been influenced stem inchibating; 2,0 as well as 4,0 mg/l havebeen yet influenced toxically on the rested parameters. Right proportionalitywith increased 2,4-D concentrations root length has been decreased. After 15and 30 days under 2,0 and 4,0 mg/l stomata parameters values have beenincreased than at 8,0 mg/l whereas shown decreasing. At the least sample taking(after 45 days) the stomata number increased under 2,0 and 4,0 mg/l 2,4-Dconcentration while under 8,0 mg/l this parameter decreased.Key words: cucumber, morphology, anatomy, stomata.

References

Angelov, I., Matvejeva Jana, Stankovich Lefterija, Kratovalieva Suzana.

(1995): Broj i dimenzii na stomite po lisniot epidermis kaj domatot (Solanum lycopersicum L.), Mac. Agr. Rew., Vol. 42 (2),81-86, Skopje.

Ivanova, I. A. (1984): Effect of phosphorous deficiency on auxins, gibberellin-like substances and inhibitors of maize. Miner nutr. of plants. Proceeding of the Second Inter. Symp. On Plant Nutrition, Vol. III, 339-342.

Todorova-Trifonova, A., Danailova, S., Katova, C. (1982): Vlijanie na 2,4-D võrhu intenziteta na fotosintezata i sõstojenieto na hlorofilnite pigmenti pri dva sorta krastavica. Fiziologija na rastenijata, Tom 6, 558-591, Sofija.

Zsoldos, F., Haunold, E. (1979): Mineral nutrition of plants, Proceeding of the first Intern. Symp. on Plant Nutrition, 275-278.

Zsoldos, F., Haunold, E., Toth, I. (1984): Influence of auxin and non auxin type herbicides on the ion uptake of maize roots. Miner. Nutr. Of plants. Proceeding of the Second Intern. Symp on Plant Nutrition, Vol. III. 331-33.

Published
2013-04-24