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Ověřování účinku fytohormonů na diferenciaci kořenů u dřevitých řízků podnoží peckovin
Ambrosová, Lýdie
This diploma thesis deals with the examination of impacts of phytohormones on rooting of hardwood cuttings of rootstocks. The goal of the thesis is an evaluation of chosen stimulators and rootstocks. There are examined 1% stimulators based on NAA, NAA in combination with brassinosteroids, IAA, IBA, IBA as powder and non-treated control in this thesis. The evaluated rootstocks are VVA-1, AP-1, MY-KL-A, Ishtara and PS-1. The best results reach stimulators based on IBA and IAA (57--58 %), generally all examined rootstocks of cuttings treated by stimulators achieves better rooting rates, more than 50 % (only variants with brassinosteroids do not take root at all). Control without any treatment reaches 43 %. The best rooting rates have rootstocks AP-1 (58 %), VVA-1 and MY-KL-A (55--56 %), worse rooting rates have rootstocks PS-1 and Ishtara (both 26 %).
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Methods of selection stone fruit rootstock with verified of field resistance level to bacteria Pseudomonas syringae
Korba, Josef ; Šillerová, Jana
Bacteria Pseudomonas syringae are response for number economical important diseases in worldwide. These bacteria can infect a wide variety of vegetables, fruits and ornamental plants. Damage of diseases caused Pseudomonas syringae on stone fruit are to 50% of fruit production. Till this time level of stone fruit rootstock resistance is not known for rootstock using in Czech Republic. The level of resistance is determined after artificial inoculation of testing rootstock by chosen methods. The aim of the methodology is selection stone fruit rootstock with verified of field resistance level to bacteria Pseudomonas syringae (Pseudomonas syringe pv. syringe, Pseudomonas syringe pv. morsprunorum) and recommendation of resistance rootstock for breeding programs, for growers and for nursery practice. The methodology is done according the aims of COST Action 873 “Bacterial diseases of stone fruits and nuts”.
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