![]() Knowledge of the geographic origins and characteristics of the parent species helps in understanding the potential attributes of their crosses.įigure 1. Interspecific hybrids of the American species Vitis riparia, Vitis rupestris, and Vitis berlandieri make up the majority of rootstock types. Understanding geographic origins and characteristics of rootstocks Rootstocks have been reported to alter the gas-exchange performance of the scion and regulate water use efficiency (Barrios-Masias et al., 2015 Bartlett et al., 2022 Berdeja et al., 2014 Candolfi-Vasconcelos et al., 1994 Carbonneau, 1985 Cuneo et al., 2021 Dargie et al., 2014 de Souza et al., 2022 Lucini et al., 2020 Marguerit et al., 2012 Reingwirtz et al., 2021 Sampaio, 2007 Tsegay et al., 2014 Yildirim et al., 2018 Zhang et al., 2016 Zombardo et al., 2020). Optimising water use for vineyards by increasing water use efficiency (WUE) is critical to ensure viticulture’s long-term viability. The water footprint of agriculture is under increased scrutiny, and industries need to be prepared for future restrictions on water available for irrigation. These effects could be mitigated by increasing transpiration rates and lowering leaf temperature. Higher global air temperature and intensity of climatic anomalies are projected to increase evaporative demand (Pörtner et al., 2022). New adaptation strategies are required to deal with climate change, and using more efficient rootstocks is a sustainable solution. Adaptation and mitigation are two strategies for reducing and controlling the impact of climate change. Drought, flooding, and soil erosion are only a few indirect effects of climate change that limit productivity and alter grape composition. By providing the interface between the soil and the scion, rootstocks also impact nutrient and water uptake and many aspects of scion physiology via hydraulic and chemical signalling.Īnthropogenic climate change has impacted viticulture in almost all wine regions in recent decades, primarily due to rising temperatures, changing precipitation patterns, and an increase in the frequency of extreme events (Pörtner et al., 2022), affecting grape yield and quality. Rootstocks were originally selected for pest resistance, ease of rooting, grafting, propagation, and limestone tolerance. rootstocks) and the shoot (above-ground organs, such as those of V. ![]() The grafting point designates the junction between the root (below-ground organs, i.e. Rootstocks are crucial for storing nutrients and carbon assimilates and absorbing water and minerals. The root system of the vine, or the connection between the soil environment and the plant, is represented by the rootstock genotype. The domesticated grapevine is a composite of two genomes. It includes 14 rootstocks combined with three levels of irrigation, with the goal of identifying rootstocks that will prepare us for a warmer and drier future. A new research trial was planted in October 2022 in the Wairau Valley of Marlborough. To address this issue, BRI recently started a rootstock research programme. The selection of rootstock is one of the most important decisions in the development of a vineyard. As vineyards age and succumb to trunk disease, there is an urgent need for information to support replanting decision-making.
0 Comments
Leave a Reply. |