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Bau-Show Lin and Yann-Jou Lin

12 species of shade ‘trees’ studied. Measurements of coverage area, canopy thickness, and foliage density of each species. The plant canopy coverage area of each species forming a group was measured with a Mapping Handheld GPS Navigation System

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J. Gill, C. Laguë, N. Lehoux and R-M. Duchesne

We investigated the use of propane flamers in potato production. The thermal sensitivity of young potato plants and Colorado potato beetles (CPB) (eggs, larvae, adults) were determined in the laboratory and then validated in the field. The thermal treatment intensities for top killing prior to harvest were also determined both in the laboratory and in the field for three potato varieties and compared to chemical defoliant. The results obtained showed that young potato plants (0 to 10 cm) can recover from flaming treatments targeted against weeds and CPB early into the growing season. Effective thermal top killing is dependent upon potato variety (foliage density) and maturity level and inducement of sufficient temperature rise within the potato plant canopy to effectively control fall populations of CPB. A thermal strategy for weed and CPB control and top killing was elaborated and compared to chemical pesticides in term of operating costs.

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Santiago García-Martínez, Adrián Grau, Aranzazu Alonso, Fernando Rubio, Manuel Valero and Juan J. Ruiz

Tm-2 a , Sw-5, and Ty-1 genes. As is the case with the cultivar M18, the breeding line has indeterminate growth with intermediate foliage density, ripe fruits do not separate easily from pedicels during harvest, and they sometimes have yellow

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Santiago García-Martínez, Adrián Grau, Aranzazu Alonso, Fernando Rubio, Manuel Valero and Juan J. Ruiz

addition, ToMV and TSWV resistances were verified by mechanical inoculation assays, and tolerance to TYLCV has been demonstrated in several naturally infested fields. Description and Performance UMH 1203 has indeterminate growth with intermediate foliage

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value was estimated to be $4484. Top-Stop Nipper Reduces Leader Growth of Fraser Fir Christmas Trees In the United States, Christmas trees are mechanically sheared annually to increase branch and foliage density. Rutledge et al. (p. 256) found that the

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Joan Casals, Lluís Bosch, Francesc Casañas, Jaime Cebolla and Fernando Nuez

( Ballester et al., 2010 )], and red flesh. They have a thick pericarp and low level of seed cavity hollowness compared with the mean of the Pera Girona type. The plant has indeterminate growth with intermediate foliage density; the first truss is high (58 cm

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Santiago García-Martínez, Adrián Grau, Aranzazu Alonso, Fernando Rubio, Manuel Valero and Juan J. Ruiz

growth with intermediate foliage density. From 2009 to 2011 we cultivated UMH 1422, UMH 1415, and the recurrent cultivar P21 under different conditions (open field, greenhouse, and mesh-covered net house) in the spring to summer crop cycle, the most

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Santiago García-Martínez, Adrián Grau, Aranzazu Alonso, Fernando Rubio, Pedro Carbonell and Juan J. Ruiz

for Tm-2 a and Sw-5 (ToMV and TSWV resistance genes, respectively). All the breeding lines have indeterminate growth with intermediate foliage density. Ripe fruits have red flesh, the green shoulders are less intense than those of the original

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Santiago García-Martínez, Adrián Grau, Aranzazu Alonso, Fernando Rubio, Pedro Carbonell and Juan J. Ruiz

cultivar P21 are included as reference. Description and Performance UMH 1353 and UMH 1354 have indeterminate growth with intermediate foliage density and medium-sized fruits (70–90 g) with bell shape and green shoulders ( Fig. 1 ). Both lines are homozygous

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Santiago García-Martínez, Adrián Grau, Aranzazu Alonso, Pedro Carbonell, Juan F. Salinas, José A. Cabrera and Juan J. Ruiz

. Description and Performance UMH1400 and UMH1401 breeding lines have an indeterminate growth habit with intermediate foliage density and small-sized fruits (8–16 g) in a bell shape. UMH1400 is homozygous for the Tm-2a , Sw-5, and Ty-1 resistance genes