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Fruit

Denomination and synonyms

I. Trujillo, D. Barranco, P. Morello

  • K-18
  • K-18

Origin and diffusion

It is the most dominant cultivar in Israeli intensive olive orchards (25%). Some diffusion in some new producing countries like Australia, New Zealand and Argentina.

Giora Ben Ari

Purpose

Oil

Morphological characterisation

Tree


Vigour

Strong

Growth habit

Upright

Canopy density

Sparse

Fruit


Weight

Medium

Radio length/width in position A

Very elongated

Over colour at full maturity

Black

Symmetry in position A

Weakly asymmetric

Shape of apex in position A

Acute

Nipple

Strong

Shape of base in position A

Truncate

Leaf


Length

Medium

Width

Medium

Radio length/width

Moderately elongated

Curvature of longitudinal axis

Straight

Stone


Radio length/width

Very elongated

Weight

Medium

Shape of apex in position A

Acute

Symmetry in position A

Weakly asymmetric

Symmetry in position B

Symmetric

Shape of base in position A

Acute

Number of grooves on basal end

Between 7 and 10

Distribution of grooves on basal end

Strongly grouped around suture

Mucron

Absent

Rugosity of surface

Medium

Molecular characterisation (SSRs)

UDO-43
DCA3
DCA9
DCA16
GAPU-101

166/175
229/229
170/192
122/144
197/199

Agronomic characterisation and commercial considerations

The tree (and particularly the fruit) is sensitive to stress caused by a lack of water in summer. Its fruiting potential is very high. Barnea trees are well known and easily recognized by their tall apical dominant tree characteristics. They are vigorous, erect-growing trees with thin fruiting branches and a loose, open crown. Barnea trees are usually intensively cultivated. It has a very high yield with medium rate of alternate bearing. Barnea is propagated from cuttings that root easily and is only grown on its own roots. Flowering is relatively early, as is green maturation. Full black maturation is in mid-season. The oil content in mature Barnea olives is about 18 percent (an average of 2 tons/ha). The quality of Barnea olive oil is accepted as being somewhat lower than the strong Souri oil and other more delicate European olive oils. Barnea trees are highly susceptible to Leopard moth larvae. The trees are well suited to mechanical harvesting using trunk shakers.  (Lavee and Wodner 2004, Wiesman 2009). Lavee, S. and M. Wodner (2004). "The effect of yield, harvest time and fruit size on the oil content in fruits of irrigated olive trees (Olea europaea), cvs. Barnea and Manzanillo." Scientia Horticulturae 99(3): 267-277.Wiesman, Z. (2009). Chapter 7 - Desert-suitable genetic material. Desert Olive Oil Cultivation. Z. Wiesman. San Diego, Academic Press: 135-183.

Giora Ben Ari