Browsing by Author "Lopes, Maria de Fátima"
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- Adaptabilidade edafo-climática de cultivares de abobrinha (Cucurbita pepo L.)Publication . Ponte, João; Grego, José; Lopes, Maria de Fátima; Pêgo, Rogério; Rebelo, Maria FernandaAvaliação da produtividade (adaptabilidade edafo-climática) de quatro cultivares de abobrinha (Cucurbita pepo L.): cvs. 002, 300, 302 e 832 tendo em vista o seu processamento industrial (congelação). Procedeu-se à avaliação agronómica num solo argilo-calcário do Ribatejo – Santarém, Portugal, em modo de produção extensiva, como cultura de Primavera de 2001, com determinação do número e peso dos frutos por calibres comercias de 30 – 45 mm (calibre A) e 45 – 60 mm (calibre B). As cultivares 002, 300 e 302 foram as mais produtivas em número total de frutos e respectivo peso. Relativamente ao “calibre A” (calibre preferido pela indústria) as cultivares 002 e 302 apresentaram maior número de frutos, e as cultivares 002, 300 e 302 apresentaram o maior peso de frutos, acima dos 2,5 quilos por planta.The perfomance of zucchini (Cucurbita pepo L.) cultivars in Mediterranean area as horticultural processed products (freezing) was evaluated. Cultivars (cvs. 002, 300, 302 and 832) of zucchini were grown under open-field to test for differences in productivity, determining the number of fruits and fruit weight for sizes 30 - 45 mm (size A) and 45 – 60 mm (size B) Studies were conducted in a calcareous soil, in Spring 2011, at Santarém (central Portugal). Cultivars 002 and 302 were the most productive as to total number of fruits and their fruit weight. Regarding the "size A" (preferred by industry), cultivars 002 and 302 had the higher number of fruits, and cultivars 002, 300 and 302 presented greater fruit weight, greater than 2,5 Kg per plant of the most valued fruit size.
- Portuguese Cucurbita spp. and Citrullus lanatus: conservation, evaluation and breedingPublication . Rocha, F.A.; Barata, A.M.; Quedas, Maria de Fátima; Lopes, Maria de Fátima; Marreiros, A.; Leitão, J.Cucurbitaceae is one of the most important families of vascular plants. This family includes 118 genera and 825 species. The five major cucurbit crops are Citrullus lanatus Thumb Mansf. (watermelon), Cucurbita maxima Duchesne (pumpkin), Cucurbita pepo L. (squash), Cucumis sativus L. (cucumber) and Cucumis melo L. (melon). Citrullus lanatus and Cucurbita spp. are very important in the Portuguese agro-ecosystems, associated with maize, beans and cabbage. Due to the importance of Citrullus and Cucurbita spp., the Portuguese National Genebank (BPGV) has done systematic collecting missions in Portugal (Mainland and Madeira Island). Since 2001, BPGV in partnership with other National Institutions, Escola Superior Agrária de Santarém, Direcção Regional de Agricultura e Pescas do Algarve and Universidade do Algarve, has been carrying out activities related to preservation, characterization, evaluation and pre-breeding. In Portugal, in BPGV, the Curcubitaceae collection preserved in ex situ conditions (medium and long term) totals 573 accessions. The collection of Citrullus lanatus and Cucurbita spp. has a total of 355 accessions, representing 62% of the whole collection: (37 of Citrullus lanatus, 19 of Cucurbita ficifolia, 74 of Cucurbita maxima and 224 of Cucurbita pepo). Based upon the diagnosis of the preserved collection, further germplasm collecting missions were recommended in Algarve Region. AFLP and RAPDs markers were used to check the assignment of accessions to Cucurbita species: C. pepo, C. maxima and C. moshata. The morphological characterization followed the Curcubita spp. and Citrullus descriptors, elaborated by Bioversity International, integrated in the European Cooperative Program for Genetic Resources, Cucurbits Working Group. Characterization data are reported herein. Departing from the most homogeneous accessions of Citrullus lanatus, Cucurbita maxima and C. moschata, three cultivars, one of each species, have already been selected and registered in the National Catalogue of Varieties.