Режим зберігання насіннєвого матеріалу калістефуса китайського (Callistephus chinensis (L.) Nees.)

Abstract

The authors present the results of researching two Callistephus chinensis (L.) Nees varieties of different origin seeds storage regime for 36 months under different humidity and have established the positive effect on the seeds sowing qualities when storing them in low positive temperatures (+ 2 ... + 4 °С) (refrigerator) under a humidity of 8.0 % and 6.0 %. During the long-term storage in a humidity of 12.0 % the Callistephus chinensis (L.) Nees reduced dramatically the germination energy and laboratory germination, their values being zero. Therefore such storage regimes is critical for the studied crop. The three year investigations showed the advantage of storing the seeds under low positive temperatures as compared to the laboratory conditions (in banging). The varietal dependence of this economic trait was determined: the seeds of the cv Kniagynia of our own breeding have higher germination energy and laboratory germination in all the studied regimes as compared to the strain Birma of the German origin. This indicates a higher level of the inland variety plasticity. The results of the analysis have shown that it is inexpedient to store the Callistephus chinensis (L.) Nees seeds for 36 months under low positive temperatures and a humidity of 12.0 %.