Search results for " shoot growth"

Effects of canopy covering on yield and quality of ‘Nero d’Avola’ (Vitis vinifera L.) grown in hot-arid climate condition

The impact of climate change on grapevine ecophysiology and vineyard management is predicted to be a serious problem in the next years. In fact, it has an influence on the fruit-set, yield, and in modulating decoupling between technological and phenolic ripening. Thus, it is essential to identify costeffective and easy-to-implement solutions to deal with the issue. For this purpose, the present study aims to test different shade treatments (ST) applied directly to the canopy of ′Nero d’Avola′ cultivar (Vitis vinifera L.), trying to limit the excess of light and heat that, usually occur in hot-arid climate areas as in Sicily. Two ST were imposed during the 2020 vegetative season from fruit s…

Productive and vegetative responses of 'Gala' and 'Fuji' apple trees under controlled irrigation strategies

2008

We investigated the productive and vegetative responses of ‘Gala’ and 'Fuji' apple (Malus domestica Borkh.) trees to deficit irrigation and partial rootzone drying under the dry climate of central Sicily. Soil water tension (SWT), stomatal conductance, yield, fruit quality, fruit growth, and shoot extension of conventionally irrigated trees (CI), where drip emitters on both sides of each tree were left open, were compared to that of partial rootzone drying (PRD) trees, where only one side of the rootzone was irrigated for the entire season (receiving 50% of the CI irrigation water), and to that of deficit irrigated (DI) trees, where drip emitters on both sides of the rootzone were deliverin…

A comparison of growth, gas exchange and productivity in Olea europaea cultivars growing on Mediterranean hills.

2008

This work concerns the ecophysiology of olive cultivars growing on Mediterranean hills. Our aim was to quantify the photosynthetic efficiency of the cultivars in cultivation. In two hill areas, we tested the phenological and ecophysio- logical variability of olive cultivars grown on non-irrigated land, with different pedo-climatic characteristics. Cultivation area 1 falls within a natural protected area, while area 2 is on farming land. The cultivars selected (‘Biancolilla’, ‘Nocellara del Belice’ and ‘Giarraffa’) belong to the local genetic pool and require different amounts of water. We followed the phe- nological phases of shoot growth and drupe production. We studied leaf anatomy and ch…

Foliar fertilization in ‘Nocellara del Belice’ olive trees

2008

Eight-year-old olive trees of ‘Nocellara del Belice’ grown in central Sicily were treated with five different types/combinations of organic and mineral foliar fertilizers. Floral 20-20-20 (mineral N, P, K, and microelements; FLO), Alga (extract of brown algae; ALG), FLO+ALG, Azomin (organic N, amino acids and peptides; AZO), Supernat93 (organic N and K, distillation residue; SUP), and water (CONTROL) were applied four times during summer and fall 2002. Yield and trunk circumference were measured during fall 2002, whereas other vegetative and reproductive parameters were measured during spring-fall 2003. AZO and SUP trees produced more than CONTROL and ALG ones, whereas only AZO trees showed…