The diploma thesis process current literature dealing with partial deleafing around grapes during vegetation period with manual and mechanized method and its impact on sugar and acid level in grapes. Deleafing the plant around the grapes during vegetation season may lead to higher quality of the grapes. It is, however, necessary to know basic deleafing rules. An excessive deleafing leads to overexposing the grapes. Such exposure causes negative effects, for example sunburn. Optimal deleafing (1-3 leaves and shoots around the grapes) exposes the grapes in an ideal way and they are warmed. The warming reduces the malic acid level and allows better sugar production. Mechanized deleafing of the grape area is quicker and faster. Unfortunately with this method grapes might be damged which often leads to fungal diseases. The manual method is very time consuming but it comes with careful way of deleafing. A variety sensitive deleafing of grapevine is recommended. Weather and station are also important factors. The most importnant factor is the date of deleafing. The work in wineyard demands manpower and it is time consuming. Still it pays off as this diploma thesis shows.
| Identifer | oai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:424843 |
| Date | January 2017 |
| Creators | Krupica, Zdenek |
| Source Sets | Czech ETDs |
| Language | Czech |
| Detected Language | English |
| Type | info:eu-repo/semantics/masterThesis |
| Rights | info:eu-repo/semantics/restrictedAccess |
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