Ampelography, the botanical discipline dedicated to identification and classification of grapevine cultivars, was grounded on description morphological characters more recently is based application DNA polymorphisms. New methods image analysis may help optimize approaches in ampelography. The objective this study representative cultivars Vitis vinifera conserved Spanish collection IMIDRA accord...

Abstract Understanding how diaspore (hereafter ‘seed’) morphology and orientation affect secondary seed dispersal by wind is important to link post-dispersal processes, such as lodging, predation germination. This study aims describe the effects of on via mechanistic modelling. We extend model Schurr et al. (2005) in order affected conditions, ground surface, orientation. The simulates initial ...

Controlling the shape or morphology of metal nanocrystals is central to the realization of their many applications in catalysis, plasmonics, and electronics. In one of the approaches, the metal nanocrystals are grown from seeds of certain crystallinity through the addition of atomic species. In this case, manipulating the rates at which the atomic species are added onto different crystallograph...

'Candidatus Liberibacter asiaticus' is the bacterium implicated as a causal agent of the economically damaging disease of citrus called huanglongbing (HLB). Vertical transmission of the organism through seed to the seedling has not been demonstrated. Previous studies using real-time polymerase chain reaction assays indicated abundant bacterial 16S rRNA sequences in seed coats of citrus seed but...

Seed coat morphology of Lemmonia californica. long held to be a relative of Nama. was examined using scanning electron microscopy. Its seed coat exhibits reticulum cells with undulate cell walls and columnar radial wall thickenings. Seed coat structure in nine species of Nama. N. demissum. N. aretioides. N. densum. N. parviflorum. N. pusillum. N. depressum. N. dichotomum. N. sericeum and N. ori...

Post-fire reproductive niche of Aleppo pine (Pinus halepensis) is deeply interlaced with fire products. Indeed, the high pH and low osmotic potentials of ash beds under burnt crowns constitute the main constraints to seed germination. In this study, we aim to investigate whether fire recurrence, through the physico-chemical constraints imposed by the ash beds, affects the reproduction ability o...

This study evaluated the contributions of Styrax camporum seed morphology (size of seeds, presence or absence of endocarp attached to the seed), different substrates (filter paper, vermiculite, sand and the soils of cerrado s. str., cerradão and a riparian forest), different water potentials (0, -0.1, -0.2, -0.3, -0.4 and -0.5 MPa), light and temperature to seed germination. Seed size did not a...

This work evaluated the effect of seed size and morphology on the development and biomass of durum wheat seedlings. Three different seed-grading sizes selected by sieving were used in glasshouse experiments, and a set of three developmental and 23 biomass-related indices were measured on eight genotypes, at two moisture levels. The influence of seed size on seedling development was studied at h...