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96. Effect of earthworms on mycorrhization, root morphology and biomass of silver fir seedlings inoculated with black summer truffle (Tuber aestivum Vittad.)Tina Unuk Nahberger, Niccolo G. M. Benucci, Tine Grebenc, Hojka Kraigher, 2021, izvirni znanstveni članek Povzetek: Species of the genus Tuber have gained a lot of attention in recent decades due to their aromatic hypogenous fruitbodies, which can bring high prices on the market. The tendency in truffle production is to infect oak, hazel, beech, etc. in greenhouse conditions. We aimed to show whether silver fir (Abies alba Mill.) can be an appropriate host partner for commercial mycorrhization with truffles, and how earthworms in the inoculation substrate would affect the mycorrhization dynamics. Silver fir seedlings inoculated with Tuber. aestivum were analyzed for root system parameters and mycorrhization, how earthworms affect the bare root system, and if mycorrhization parameters change when earthworms are added to the inoculation substrate. Seedlings were analyzed 6 and 12 months after spore inoculation. Mycorrhization with or without earthworms revealed contrasting effects on fine root biomass and morphology of silver fir seedlings. Only a few of the assessed fine root parameters showed statistically significant response, namely higher fine root biomass and fine root tip density in inoculated seedlings without earthworms 6 months after inoculation, lower fine root tip density when earthworms were added, the specific root tip density increased in inoculated seedlings without earthworms 12 months after inoculation, and general negative effect of earthworm on branching density. Silver fir was confirmed as a suitable host partner for commercial mycorrhization with truffles, with 6% and 35% mycorrhization 6 months after inoculation and between 36% and 55% mycorrhization 12 months after inoculation. The effect of earthworms on mycorrhization of silver fir with Tuber aestivum was positive only after 6 months of mycorrhization, while this effect disappeared and turned insignificantly negative after 12 months due to the secondary effect of grazing on ectomycorrhizal root tips.
Ključne besede: mycorrhiza, truffles, silver fir, inoculation, earthworms, spore inoculation
Objavljeno v DiRROS: 22.03.2021; Ogledov: 1040; Prenosov: 724
 Celotno besedilo (1,32 MB)
Gradivo ima več datotek! Več... |
97. Cultivation and utilization of Poplars, Willows and other fast-growing trees in Slovenia : report of the National Poplar CommissionGregor Božič, Andreja Ferreira, Anže Martin Pintar, Gordana Beltram, Marko Kovač, Darja Istenič, Špela Ščap, Marjana Westergren, Marko Bajc, Daniel Zorko, Simon Verebič, Nikica Ogris, Hojka Kraigher, 2020, elaborat, predštudija, študija Ključne besede: Poplar, Willow, Black Walnut, Black Locust, international commission, FAO, national report, questionnaire, genetics, forest protection, legislation, categorisation, forest products, ecology, Slovenia
Objavljeno v DiRROS: 11.12.2020; Ogledov: 1337; Prenosov: 413
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98. Značilnosti bukovega semenskega sestoja na Blegošu s poudarkom na kakovosti debelBoštjan Mali, Andrej Verlič, Gabrielle I. Deckmyn, Aleš Kadunc, Hojka Kraigher, 2008, izvirni znanstveni članek Ključne besede: bukev, Fagus sylvatica, zgradba sestoja, kakovost debel, semenski sestoji, Blegoš, rdeče srce, zavitost rasti, krošenjski indeks
Objavljeno v DiRROS: 17.11.2020; Ogledov: 1282; Prenosov: 443
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99. Razmejitev provenienčnih območij gozdnih drevesnih vrst v Sloveniji na osnovi ekoloških regijLado Kutnar, Mitja Zupančič, Dušan Robič, Nina Zupančič, Sašo Žitnik, Tone Kralj, Irena Tavčar, Mojca Dolinar, Ciril Zrnec, Hojka Kraigher, 2002, strokovni članek Povzetek: Zakon o gozdnem reprodukcijskem materialu, ki je bil sprejet junija 2002, v skladu z Direktivo EU o gozdnem reprodukcijskem materialu, zahteva določitev provenienčnih območij za pridobivanje in uporabo gozdnega reprodukcijskega materiala. V prispevku je predstavljen predlog oblikovanja ekoloških regij in podregij, ki so osnova za predlagano razmejitev provenienčnih območij. Meje ekoloških regij so lahko prehodne ali mozaično razporejene. Zaradi lažjega določanja provenienčnih območij na terenu in lažjega nadzora nad sadnjo oziroma setvijo so meje provenienčnih območij čimbolj prilagojene gospodarsko-ureditvenim in administrativnim mejam, ki so po možnosti označene na terenu. Predstavljene so osnove za oblikovanje in predlog razmejitve 7 provenienčnih območij, razdeljenih na štiri višinske pasove.
Ključne besede: ekološka regija, provenienčno območje, fitogeografska delitev, gozdni reprodukcijski material, uporaba, Slovenija
Objavljeno v DiRROS: 17.11.2020; Ogledov: 1355; Prenosov: 511
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