These are supported by manual sampling, where yield is estimated by sampling clusters weight and the number of clusters per vine, historical data, and extrapolation considering the number of vines in a plot. The main efforts towards improved yield models applied to the vineyard, considered one of...
These indices are based in the fact that healthy, vigorous vines will exhibit strong near-infrared reflectance and very low reflectance in the visible region of the spectrum [1,8]. Once the VI have been calculated, they are classified into a pseudo-color index images, whereby distinct color ...
Especially in ancient times, vine growers in the Mediterranean basin have used a particular pruning system, the Mediterranean goblet, resistant to drought (vines can be rain-fed with only 350 mm of rainfall per year) high temperatures. The goblet technique can be recognized as it shapes the ...
There is a growing need to provide support and applicable tools to farmers and the agro-industry in order to move from their traditional water status monitoring and high-water-demand cropping and irrigation practices to modern, more precise, reduced-dema
No significant differences were observed around the vines. In general, weed biomass growth was smaller here in comparison with the between-vines locations, owing in part to the presence of the trunk, which reduced by some extent the actual sampling area, but more probably to the vine’s compet...
This was not the case of the CLM studied soils. Therefore, calculating the BCF (to assess whether vines could be categorized as accumulators) did not prove valuable in the case study. Arsenic contents in vineyard soils vary, mainly according to soil type and parent materials. It is understood...
For instance, in this study the multiplier was set to 0.6 during pre-veraison because the winegrower wanted to stress vines at this phenological stage. Immediately before veraison, the multiplier was set to 1.5 in order to recover vine water status. During post-veraison, it progressively ...
Furthermore, some damaged or dead vines destroy the aligned structures of vine rows. That is why the retrieval rates on bare soil and vineyard classes are more limited than for forest and urban classes. As mentioned in Section 2, from the Pessac site, most of the vine parcels have low ...