13 documents found, page 1 of 2
Involvement of abscisic acid and other stress indicators in taro (Colocasia esc...
Gouveia, Carla S. S.; Ganança, José F. T.; Slaski, Jan J.; Lebot, Vincent; Carvalho, Miguel Â. A. Pinheiro deTaro (Colocasia esculenta (L.) Schott) is a staple food and represents an important food security role in most tropical regions. It is, unfortunately, susceptible to prolonged drought conditions. Abscisic acid (ABA) is a well-documented stress-induced phytohormone that tolerant crops usually accumulate in leaves to induce stomatal closure, preventing water loss through inhibition of transpiration. Hitherto, exi...
Abscisic acid phytohormone estimation in tubers and shoots of Ipomoea batatas s...
Gouveia, Carla S. S.; Ganança, José F. T.; Slaski, Jan J.; Lebot, Vincent; Carvalho, Miguel Â. A. Pinheiro deSweet potato (Ipomoea batatas L.), typically cultivated in temperate climates under low inputs, is one of the most important crops worldwide. Abscisic acid (ABA) is an important plant stress-induced phytohormone. Hitherto, few works analyzed the ABA function in sweet potato tissue growth. Very scarce information is available concerning the ABA role in sweet potato response to water scarcity conditions. Here, we...
Aluminium tolerance in bean traditional cultivars from Madeira
Domingues, Ana Maria; Silva, Emanuel da; Freitas, Gregório; Ganança, José Filipe; Nóbrega, Humberto; Slaski, Jan J.; Carvalho, Miguel Ângelo Pinheiro deCommon bean (Phaseolus vulgaris L.) is the most important legume crop in the world, providing low-cost, high quality protein, minerals and dietary fiber for human nutrition. The crop was originated from diversity centers in America and exhibits adaptation abilities to different environmental conditions, including soil with low pH. Acid soils occupy 30% of the agro ecosystem areas in the world. In Madeira, acid ...
Evidences of organic acids exudation in aluminium stress responses of two Madei...
Rodrigues, Marta; Ganança, José F.T.; Silva, Emanuel M. da; Santos, Teresa M. M. dos; Slaski, Jan J.; Zimny, Janusz; Carvalho, Miguel Â. A. Pinheiro deTwo wheat (Triticum aestivum L.) Madeiran landraces were subjected to 100 μM and 200 μM of aluminium (Al) in hydroponic culture, assessing the organic acid exudation role in plant’s responses to this metal. Samples of initial landrace populations (F0), F3 and haplodiploid lines (DH) were evaluated using standard tests: eriochrome cyanine R staining, root elongation and callose accumulation in roots. Root exudat...
Nutritional and mineral variability in 52 accessions of common bean varieties (...
Gouveia, Carla S.S.; Freitas, Gregório; Brito, José H. de; Slaski, Jan J.; Carvalho, Miguel Â. A. Pinheiro deThe Phaseolus vulgaris L. is one of the traditional and most important leguminous crops in the Island of Madeira. The island’s bioclimatic tiers, agro-ecological environment and traditional farming practices had a great influence on the evolution of regional bean landraces. The variabili ty of the nutritional and mineral seeds composition of 59 accessions of the Madeiran landraces, standard and commercial varie...
Aluminium tolerance in bean traditional cultivars from Madeira
Domingues, Ana Maria; Silva, Emanuel da; Freitas, Gregório; Ganança, José Filipe; Nóbrega, Humberto; Slaski, Jan J.; Carvalho, Miguel Ângelo Pinheiro deCommon bean (Phaseolus vulgaris L.) is the most important legume crop in the world, providing low-cost, high quality protein, minerals and dietary fiber for human nutrition. The crop was originated from diversity centers in America and exhibits adaptation abilities to different environmental conditions, including soil with low pH. Acid soils occupy 30% of the agro ecosystem areas in the world. In Madeira, acid ...
Cereal landraces genetic resources in worldwide GeneBanks. A review
Carvalho, Miguel A. A. Pinheiro de; Bebeli, Penelope J.; Bettencourt, Eliseu; Costa, Graça; Dias, Sonia; Santos, Teresa M. M. dos; Slaski, Jan J.Since the dawn of agriculture, cereal landraces have been the staples for food production worldwide, but their use dramatically declined in the 2nd half of the last century, replaced by modern cultivars. In most parts of the world, landraces are one of the most threatened components of agrobiodiversity, facing the risk of genetic erosion and extinction. Since landraces have a tremendous potential in the develop...
Genetic variability of high molecular weight glutenin subunits in bread wheat f...
Santos, Teresa M. M. dos; Nóbrega, Humberto; Ganança, José Filipe Teixeira; Silva, Emanuel; Afonso, Desire; Gutiérres, Abílio F. M.; Slaski, Jan J.The genetic variability of high molecular weight glutenin subunits (HMWGS) composition at the Glu-1 loci in bread wheat (Triticum aestivum L.) was studied electrophoretically using the SDS–PAGE in 3,470 individuals representing 159 populations originated from the Canary Islands (Spain), the Archipelago of Madeira (Portugal) and the continental Portugal. A total of 25 alleles were detected, resulting in 69 diffe...
Morphological evaluation of common bean diversity on the Island of Madeira
Freitas, Gregório; Ganança, José F.T.; Nóbrega, Humberto; Nunes, Élvio; Costa, Graça; Slaski, Jan J.; Carvalho, Miguel Â. A. Pinheiro deThe variability of fifty populations of common bean (Phaseolus vulgaris L.), representing a wide range of ecological conditions on the Island of Madeira, was evaluated based on morphological and reproductive traits. Individual data of 58 traits related to earliness, plant and tassel structure and the shape of the ear and grain were analysed using multivariate analysis. The populations belonging to two major com...
Morphological characterization of wheat genetic resources from the Island of Ma...
Santos, Teresa M. M.; Ganança, Filipe; Slaski, Jan J.; Carvalho, Miguel Aˆ . A. Pinheiro deThis paper presents the first comprehensive morphological characterization and identification of the wheat populations collected on the Archipelago of Madeira and preserved at the ISOPlexis Germplasm Bank, the University of Madeira, Funchal. Fifty-two wheat populations representing Madeira’s Triticum diversity and a wide range of ecological conditions were evaluated based on the biometrical and cytometrical tra...