Osservazioni sulla suscettibilità alla ticchiolatura di cultivar di nespolo del Giappone.

Two new apricot varieties

Nella and Dora are apricot seedlings recently selected by R. Chiappetta in Sicily. Their vegetative, floreal, agronomic and fruit-quality characteristics were checked for three years (2003 - 2005) in Partinico (Palermo coast area), under mild winter and spring temperatures, in comparison with Tyrinthos variety. Nella and Dora have an upright tree habit and are self-compatible. Blooming started a week earlier in Nella and Tyrinthos (end of February) and concluded in the second part of March in all varieties. Fruit set was satisfactory in all cultivars. Crop was harvested from May 25th to 30th in Dora, May 24th to 30th in Nella and May 24th to 28th in Tyrinthos. Fruit weight, as a three years…

Gibberellic acid and flower bud development in loquat (Eriobotrya japonica Lindl.)

The application of gibberellic acid (GA 3) to the whole loquat tree from mid-May to early June and from early August to the onset of flowering, significantly reduced the number of premature flowering shoots per current shoot and per m 3 of canopy, and so reduced the total number of panicles per m 3 of canopy. The number of vegetative shoots per m 3 of canopy was also significantly reduced by applying GA 3. The response depended on the concentration applied and produced optimal results at 50mgl -1. Differences in the number of flowers per panicle and leaves per shoot were not significantly modified by the treatment. Nevertheless, GA 3 applied directly to the developing apex near to flower di…

Loquat scab control by natural extracts, Further trials on treatment efficacy.