Alternative shoot tip management practices impact above and below ground growth in Vitis vinifera L. Cabernet franc.
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Location
Gallaudet University - JSAC Multipurpose Room
Start Date
4-3-2024 2:30 PM
End Date
4-3-2024 3:00 PM
Description
In a 2016-2019 study in New York's Finger Lakes region, methods were explored to tackle excessive vine vigor in 'Cabernet franc' grapevines (Vitis vinifera L.). Techniques like shoot wrap, shoot tuck, and hedge (control) were applied at two growth stages: shoot tips at 30 cm (early) or 90 cm (late) above the top catch wire. Both shoot tuck and shoot wrap significantly decreased fruit zone lateral counts, by up to 33% and 56% respectively, compared to the control. Shoot wrap also led to a 50% reduction in fruit zone lateral lengths and a cluster compactness decrease of up to 2.4 berries per cm rachis. While improvements in spray penetration were noted with shoot wrap in one year, occlusion layer number remained unaffected. No consistent impacts on yield or fruit composition were observed, and phenological timing minimally influenced vine growth. Below ground, early shoot wrap application notably increased fine root tip production during bloom and veraison and produced younger tips and a deeper root distribution. Correlations between above-ground and below-ground parameters highlighted intricate relationships between shoot management practices and root dynamics in grapevines. However, despite positive impacts, the labor-intensive nature may hinder widespread adoption of these modified shoot tip management practices.
Recommended Citation
Logan, Anne K., "Alternative shoot tip management practices impact above and below ground growth in Vitis vinifera L. Cabernet franc." (2024). Global Year of STEM Sign Language. 11.
https://ida.gallaudet.edu/global_STEM_signlanguage/STEM_signlanguagesummit/day_3/11
STEM SLS 04.03 MPR 11.pptx (37718 kB)
STEM SLS 04.03 MPR 11.txt (1 kB)
Alternative shoot tip management practices impact above and below ground growth in Vitis vinifera L. Cabernet franc.
Gallaudet University - JSAC Multipurpose Room
In a 2016-2019 study in New York's Finger Lakes region, methods were explored to tackle excessive vine vigor in 'Cabernet franc' grapevines (Vitis vinifera L.). Techniques like shoot wrap, shoot tuck, and hedge (control) were applied at two growth stages: shoot tips at 30 cm (early) or 90 cm (late) above the top catch wire. Both shoot tuck and shoot wrap significantly decreased fruit zone lateral counts, by up to 33% and 56% respectively, compared to the control. Shoot wrap also led to a 50% reduction in fruit zone lateral lengths and a cluster compactness decrease of up to 2.4 berries per cm rachis. While improvements in spray penetration were noted with shoot wrap in one year, occlusion layer number remained unaffected. No consistent impacts on yield or fruit composition were observed, and phenological timing minimally influenced vine growth. Below ground, early shoot wrap application notably increased fine root tip production during bloom and veraison and produced younger tips and a deeper root distribution. Correlations between above-ground and below-ground parameters highlighted intricate relationships between shoot management practices and root dynamics in grapevines. However, despite positive impacts, the labor-intensive nature may hinder widespread adoption of these modified shoot tip management practices.
