Author/Authors :
Kotková, R. Crop Research Institute, Czech Republic , Kotková, R. Czech University of Life Sciences Prague - Faculty of Agrobiology, Food and Natural Resources, Czech Republic , Zámečník, J. Crop Research Institute, Czech Republic , Faltus, M. Crop Research Institute, Czech Republic , Hejnák, V. Czech University of Life Sciences Prague - Faculty of Agrobiology, Food and Natural Resources, Czech Republic
Abstract :
The growth characteristics of bolting garlic genotype ‘Djambul2’ were studied in in vitro conditions. The growth of the plants was described by parameters of the Mitscherlich logistic growth curve every week. Correlations among parameters characterized logistic growth were of physiological and mathematical shapes of the logistic curve. The characteristics of leaf area (A), dry weight of leaves (W) and leaf area duration (LAD) were positively correlated and they were associated with increasing trends. Changes in leaf area ratio (LAR) were 8.8% in a period of six weeks. The growth of leaves was compensated by lower net assimilation rates (NAR) that decreased to 6.6% over a period of six weeks. The production rate (C) significantly decreased to 42% after six weeks. The relative growth rate of dry weight (RGR RW) decreased to 5.8%, relative growth rate of assimilation area (RGR RA) reduced to 12.6%. The findings support the hypothesis about limitation of nutrition resources in growing media
Keywords :
Allium sp. , tissue culture , leaf area ratio , production rate , net assimilation rate