The Vegetative Response of 'Concord' Grapevines to Soil pH

Abstract

<jats:p>One- and 2-year-old 'Concord' (<jats:italic>Vitis labruscana</jats:italic> L.) grapevines were used to study the effect of soil pH on vegetative growth and nutrition. Ninety-eight, own-rooted, 'Concord' grapevines were planted in 94.6-L pots containing vineyard soil adjusted to seven soil pH levels ranging from 3.5 to 7.5. After the first growing season, seven vines from each soil pH treatment were randomly selected, destructively harvested, and measured for root and shoot growth. The remaining 49 vines over-wintered in the pots, were defruited in year two, and were destructively harvested at the end of the second growing season. There was a reduction in root biomass below soil pH of 4.5 and a greater reduction in shoot biomass leading to a higher root: shoot ratio. There were no significant differences in vegetative growth of young 'Concord' vines from a soil pH of 5.0-7.5. However, there was a trend toward lower shoot biomass and higher root: shoot ratio at the highest soil pH level. Phylloxera nodosities on roots were present in equal densities at all soil pH values. However, the negative impact of phylloxera on vine dry mass was greater on vines under nutrient stress at the highest and lowest pH treatments than on those with adequate nutrition at the mid-range soil pH values.</jats:p>

Effect of soil pH on growth, nutrient uptake, and mycorrhizal colonization in exotic invasive Lygodium microphyllum

“…obser.). Schindelbeck and Riha (1988) and Kidd and Proctor (2001) have found that decrease in soil pH caused an increased biomass allocation to roots; Bates et al (2002) found that when the soil pH was lower than 4.4 the root, shoot ratio increased in Vitis labruscana L. plants.…”

Reduction of copper phytotoxicity by liming: A study of the root anatomy of young vines ( Vitis labrusca L.)

“…In addition to the reduction of Cu availability and the increase of Ca and Mg in the soil, liming also increased the soil pH from 4.4 to 5.4 or 6.1, and it may have provided additional benefits to the young vines, such as by reducing the absorption of Al, which is toxic to plants, and by increasing the availability of phosphorus (P) to and the uptake of P by the roots, favoring growth (Bates et al, 2002). Increases of P within the plant increase the plant's nutritional status and also have an effect on Cu toxicity because within the roots, P binds to Cu and forms an insoluble complex, thus preventing interactions between Cu and the root cells, especially vascular tissue cells, and alterations to the root structure (Ferreira et al, 2014).…”

Vine Growth and Yield Response of Alphonse Lavallée (V. Vinifera L.) Grapevines to Plant Growth Promoting Rhizobacteria Under Alkaline Condition in Soilless Culture

“…2010] and other deciduous fruit trees [Kassa 2015]. Studies revealed that root and shoot developments of grapevines are negatively affected above a soil pH of 7.0 [Winkler et al 1974, Bates et al 2002. Vineyard soils with a pH greater than 7.5 typically cause nutrient imbalances in grapevines [Bates and Wolf 2008].…”

“…Around the world, grapevine is generally cultivated in regions where alkaline soils with low iron availability prevail. High bicarbonate solution in alkaline soils is the main cause of limeinduced chlorosis with its well-investigated negative effects on both yield and quality of grapes [Bates et al 2002]. Several agents have been examined for their biostimulant or biofertilizer potential to promote plant growth under stress conditions [Nadeem et al 2007, Karlidag et al 2011, Dilek and Sabir 2016.…”