1,362,218 research outputs found
MONOGRAFIA DEI PORTINNESTI DEI FRUTTIFERI: FRANCO DI MANDORLO A SEME DOLCE, FRANCO DI MANDORLO A SEME AMARO
Growth and yield of four self-fruitful and four self-unfruitful almonds on three rootstocks: A thirteen-year study
Self-fruitful Apulian almonds 'Falsa barese','Genco', 'Scorza Verde' and 'Tuono' and self-unfruitful 'Cristomorto', 'Ferragnes', 'Mission' and 'Nonpareil' were budded in the nursery in September 1980 onto peach x almond hybrid GF 677, sweet almond seedling cv. 'Don Carlo' and homozygotic peach seedling GF 305. The orchard was established at Valenzano, near Bari (Southern Italy) in December 1981. By 1992, 62.5% of the trees grafted onto peach seedlings had died. GF 677 and almond seedlings proved to be the more vigorous rootstocks compared to GF 305. The 'Mission', 'Nonpareil' and 'Ferragnes' cultivars had significantly greater vegetative growth than the others. From 1984 to 1992, GF 305 induced a significantly lower average annual kernel yield than did almond or GF 677. Considering the whole 1984-1994 period, no differences in cumulative kernel yield were found between the trees budded onto GF 677 and almond. Consistent yields were produced by the self-fruitful 'Genco', 'Scorza verde' and 'Tuono' cultivars, in contrast to 'Nonpareil' which proved absolutely unsatisfactory under the environmental conditions of the trial. The average kernel yield of the self-fruitful almonds was 185% that of the self-unfruitful almonds. The self-fruitfulness of Apulian almonds proved to be a trait of great importance for productivity
Valutazione agronomica di dodici portinnesti per il ciliegio dolce allevati in asciutto in Puglia
Stomatal size and frequency in wild and cultivated almonds
Stomatal size and frequency are features commonly related to plant water stress tolerance. In
general, size and number are negatively correlated and may vary greatly among species and genotypes. The
number of stomata per leaf area unit is considered a peculiar characteristic of species and plant varieties. In
order to provide information concerning this topic, a study was carried out on the stomata size and frequency of
15 cultivated almonds (A. communis) and 5 Apulian wild almonds (A. webbii). The varieties of A. communis were
chosen taking into consideration their country of origin (extra Mediterranean/Mediterranean/Apulian), shell
hardness (paper/hard) and kernel taste (sweet/bitter). The only evident difference between the cultivated and wild
almonds concerned the leaf area; stomata frequency and size were independent of other characteristics, such as
origin, country of origin, shell hardness and kernel taste of the twenty varieties/seedlings investigated
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