321. Time vs drought : leaf age rather than drought drives osmotic adjustment in V. vinifera cv. Pinot NoirElena Farolfi, Jan Reščič, 2023, published scientific conference contribution abstract Abstract: Global warming and increased frequency and/or severity of drought events are among the most threatening consequences of climate change for agricultural crops. In response to drought, grapevine (as many other plants) exhibits osmotic adjustment through active accumulation of osmolytes which in turn shift the leaf turgor loss point (TLP) to more negative values, allowing to maintain stomata opened at lower water potentials1. We investigated the capacity of Pinot noir leaves to modulate their osmotic potential as a function of: (i) time (seasonal osmoregulation), (ii) growing temperatures, and (iii) drought events, to enhance comprehension of the resilience of grapevines in drought conditions. We performed trails under semi-controlled field conditions, and in two different greenhouse chambers (20/15 °C vs 25/20 °C day/night). For two consecutive vegetative seasons, grafted potted grapevines (Pinot noir/SO4) were subjected to two different water regimes for at least 30 days: well-watered (WW) and water deficit (WD). Via pressure-volume (PV) curves and osmometer measurements we derived the leaf osmotic adjustment capability and TLP, while monitoring the plant gas exchange and water potential. Surprisingly, lower water potentials in WD vines throughout the season and in all situations (field and greenhouse) did not trigger osmoregulation, changes in TLP nor a modification of the modulus of elasticity. PV curves provided clear evidence that both temperature and water availability do not stimulate active osmotic adjustment in Vitis vinifera cv. Pinot Noir. Conversely, there is a clear impact of seasonal osmoregulation throughout the growing season2, decreasing the osmotic potential at full turgor by an average of 0.46 MPa in 90 days. Lack of osmotic adjustment in response to drought observed in this cultivar suggests Vitis genotypes have a broad spectrum of responses to drought and the strategy adopted to cope with it is highly dependent on the cultivar under analysis.
Keywords: grapevine, drought, osmotic adjustment, osmoregulation, turgor loss point
Published in RUNG: 21.11.2023; Views: 642; Downloads: 1
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323. Spreminjanje imaginarija napredka in rasti v avantgardnih in intermedijskih umetniških praksahKristina Pranjić, Peter Purg, 2023, original scientific article Abstract: Članek povezuje umetnostno avantgardo z začetka dvajsetega stoletja ter današnjo intermedijsko in družbeno angažirano umetniško prakso. Osrednja teza je, da lahko v predstavljenih primerih umetniških del najdemo koncepte ter modele za razmišljanje in življenje onkraj imperativa rasti in nenehnega napredka. Tovrstne umetniške strategije so predstavljene v petih sklopih, ki obravnavajo teme, kot so lenoba in izginotje, kozmopolitizem in univerzalni jezik, alternativne predstave prostora/časa, transhumanizem, posthumanizem in sistemski pogled na svet. Tako kot so nekoč avantgarde opravljale kritiko industrijske oz. moderne družbe, tako danes intermedijska umetnost prispeva k prestrukturiranju imaginarija rasti ter kapitalistične proizvodnje in potrošnje. Članek doprinaša k premišljevanju konceptov postrasti in odrasti na področju umetnosti in humanistike ter prikaže, kako je prav umetnost tista, preko katere je možno pozitivno razumevanje nemoči in opuščanja oz. nasprotja rasti, kar navadno razumemo kot izključno negativno — kot pomanjkanje in izgubo.
Keywords: umetnost, družba, avantgarda, intermedijska umetnost, ekokritika, ideologija rasti, postkapitalizem
Published in RUNG: 21.11.2023; Views: 737; Downloads: 5
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326. Regenerativno vinogradništvoErika Jež, Jan Reščič, 2023, popular article Abstract: Potrošnniški način življenja novodobne družbe je predvsem mlajše generacije spodbudil k iskanju rešitev za ohranitev našega planeta. Vinogradništvo je kmetijska dejavnost, ki lahko pomembno prispeva k ustvarjanju boljšega sveta za prihodnje generacije. Največji potencial v vinogradu sta prav skrb za zdrava tla in ohranjanje biotske raznovrstnostni, ki sta temeljni zahtebvi za vse regenerativne vinogradnike.
Keywords: regenerativno vinogradništvo, podnebne spremembe, agroekologija, tla
Published in RUNG: 17.11.2023; Views: 656; Downloads: 0
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329. Imaginary:Hospitality : Atithi:DevaAbiral Khadka, 2023, artistic work Abstract: The imaginaries of hospitality
have been changing ever since
people were moving places,
migrating – meeting, welcoming
and leaving each other. A
famous Sanskrit verse equals
guest to God.
***
A musical album of reflections by:
Heidrun Friese
(Germany/Italy), Rim
Trad (Lebanon), Eva Ann
Wanjiku Chege (Kenya),
Simay Abay (Turkey),
Matias Olesi Pasulani
(Malawi), Frida Stephany
Yee Salas (Mexico),
Negera Gudeta Adula
(Ethiopia), Winnie
Wothaya Murigu
(Kenya).
01_othering (05:12)
02_visualising
movement (02:51)
03_relating the other
(04:25)
04_worlding
hospitality (03:26)
05_creating mobility
(03:07)
06_instrumentalizing
(03:45)
***
The project is a part of the
2023 POSTMOBILITY
programme within
www.go2025.eu.
Special thanks to dr. Heidrun
Friese, and to the abovenamed
students
of EMMIR, the European
Master in Migration and
Intercultural Relations
www.emmir.org.
***
Original music score and sound editing: Abiral Khadka (Joondroid)
Artistic research and performative conception: pETER Purg
Keywords: mobility, migration, hospitality, imaginary, guest, god
Published in RUNG: 15.11.2023; Views: 774; Downloads: 25
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