Izbor kvalitetne šumske sadnice poljskog jasena (Fraxinus angustifolia Vahl) za umjetnu obnovu i pošumljavanje

Professional paper - Other

• Title (english): Selecting high quality forest seedlings of narrow-leaved ash (Fraxinus angustifolia Vahl) for regeneration and reforestation purposes
• Author: Damir Drvodelić
• Author: Milan Oršanić
• Author's institution: University of Zagreb; Faculty of Forestry and Wood Technology
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Forestry

Abstract (croatian)

U ovom stručnom članku detaljno su opisani svi čimbenici koji utječu na uzgoj kvalitetne šumske sadnice poljskog jasena za umjetnu obnovu i pošumljavanje. Do sada se pozornost nije poklanjala kvaliteti sadnica s obzirom na nove i potpuno promijenjene nepovoljne ekološke i biološke čimbenike koji se događaju sa sastojinama poljskog jasena u Hrvatskoj. Kvaliteta sadnica poljskog jasena određivala se isključivo jednim morfološkim čimbenikom, a to je najčešće visina izbojka što nije dobro. U radu su definirani pojmovi morfološke i fiziološke kvalitete sadnica. Opisane su metodologije za mjerenje morfoloških i fizioloških svojstava šumskih sadnica i njihov značaj na preživljenje, rast i prirast nakon sadnje na terenu. Morfološka svojstva su: visina izbojka, promjer stabljike, odnos visine izbojka i promjera stabljike, duljina pupa, volumen korijena i stabljike, težina sadnica, odnos volumena izbojka i korijena te boja, forma i oštećenja. Fiziološka svojstva su: otpornost na hladnoću, potencijal rasta korijena (PRK), dormantnost pupa i koncentracija hranjiva u lišću. Opisana su tri stresna čimbenika koja utječu na smanjenje kvalitete šumskih sadnica, preživljenje, rast i prirast na terenu, a to su: stres zbog vlage u biljci (PMS), stres zbog temperature i fizički stres (padanje, gnječenje, vibracije, površinsko oštećivanje i trganje korijena). Definirani su i svi ostali stresni čimbenici koji utječu na pad kvalitete šumske sadnice koji se događa u razdoblju od vađenja u rasadniku do sadnje na terenu. Razjašnjena je uloga pojedinog stresnog čimbenika na sadnice, kao i kumulativan utjecaj više stresnih čimbenika. U članku se govori o ispravnom rukovanju sadnicama od vađenja u rasadniku do pošumljavanja. Prikazane su novije patentirane mogućnosti zaštite sadnica od trenutka vađenja iz rasadnika ili kamiona-hladnjače do sadnje na terenu.

Abstract (english)

This expert article describes in detail all the factors that affect the cultivation of quality forest seedlings of narrow-leaved ash for artificial regeneration and afforestation. So far no attention has been paid to the quality of the seedlings given the new and completely changed adverse ecological and biological factors occurring in narrow-leaved ash stands in Croatia. The quality of field ash seedlings was determined solely by one morphological factor, which is usually the shoot height, which is not good. The paper defines the concepts of morphological and physiological quality of seedlings. Methodologies for measuring the morphological and physiological characteristics of forest seedlings and their importance for survival, growth and growth after field planting are described. Morphological features include shoot height, stem diameter, height: diameter ratio, bud length, root and stem volume, weights, shoot: root ratio, and colour, form, and damage. Physiological properties are: cold hardiness, root growth potential (RGP), bud dormancy and foliar nutrient concentration. Three stress factors that affect the decrease in forest seedling quality, survival, growth, and field gains are described, namely: plant moisture stress (PMS), temperature stress, and physical stress (falling, crushing, vibration, surface damage, and root tearing).All other stress factors that affect the decline in the quality of forest seedlings, which occurs during the period from the nursery to field planting, have been identified. The role of an individual stress factor on seedlings is clarified, and so is the cumulative influence of multiple stress factors. The article deals with the correct handling of seedlings from harvesting in the nursery to afforestation. Recent patented protection options for seedlings from the time of removal from the nursery or cold storage truck to planting in the field are presented

• Keywords (croatian): morfološka kvaliteta šumskih sadnica; fiziološka kvaliteta šumskih sadnica; stresni čimbenici kod šumskih sadnica; rukovanje sadnicama; zaštita sadnica
• Keywords (english): Morphological quality of forest seedlings, physiological quality of forest seedlings, stress factors in forest seedlings, seedling handling, seedling protection
• Language: croatian
• Publication type: Professional paper - Other
• Publication status: Published
• Peer review: Peer review
• Publication version: Published version
• Journal title: Šumarski list
• Numbering: vol. 143, no. 11-12, pp. 577-585
• p-ISSN: 0373-1332
• e-ISSN: 1846-9140
• DOI: https://doi.org/10.31298/sl.143.11-12.8
• URN:NBN: urn:nbn:hr:108:853775
• Publication: 2019
• Type of resource: Text
• Access conditions: Open access
• Created on: 2020-01-09 10:32:27