Eryngium maritimum is a coastal plant of the Apiaceae family. This species is threatened in several countries where it reaches the northern limits of its distribution area. Existing populations in the Baltic Region and Scandinavia are potentially affected by the low efficiency of its generative reproduction. We studied physiological aspects of its germination and dormancy breaking requirements ...

BACKGROUND AND AIMS Seeds of the moist temperate woodland species Galanthus nivalis and Narcissus pseudonarcissus, dispersed during spring or early summer, germinated poorly in laboratory tests. Seed development and maturation were studied to better understand the progression from developmental to germinable mode in order to improve seed collection and germination practices in these and similar...

Two mechanisms have been suggested as being responsible for dormancy in barley grain: (i) ABA in the embryo, and (ii) limitation of oxygen supply to the embryo by oxygen fixation as a result of the oxidation of phenolic compounds in the glumellae. The aim of the present work was to investigate whether hypoxia imposed by the glumellae interferes with ABA metabolism in the embryo, thus resulting ...

Rapid obtaining of clonal plants is desirable to shorten crossing programs in fruit tree breeding. In this work, seedling germination and multiplication in vitro allowed us to establish successful in vitro cultures of hybrid seedlings. As a part of a breeding program in apricot rootstocks, we have obtained interespecific hybrid seeds after cross-pollination: myrobalan x apricot (Prunus cerasife...

After imbibition of water by seeds under favorable circumstances, the growth by which the embryo becomes a young seedling occurs by both expansion of cells originally present in the dormant embryo and mitotic divisions resulting in an increase in cell number (15). Germination of lettuce seed has been of special interest to plant physiologists because it can be stimulated by gibberellins, kineti...

BACKGROUND AND AIMS Owing to large-scale collecting, the lady's slipper orchid, Paphiopedilum delenatii, is under threat of extinction. Asymbiotic germination provides a useful way to re-establish plants in the wild and for commercial propagation. A detailed study of embryo development would provide information on subsequent germination events and aid in the propagation of the species. METHOD...

Pulsatilla cernua var. koreana seeds were harvested at six different dates between 16 days after flowering (DAF) (8 Apr.) and 43 DAF (5 May) in 2018 categorized into groups based on X-ray images. Germination tests performed without with 2 weeks of moist 5 °C treatment [cold stratification (CS)]. Seeds 38 (30 well-developed vegetative organs (embryo endosperm) as A B (seed seed B, respectively) ...

Seeds are a vital component of the world’s diet. Cereal grains alone, which comprise -90% of all cultivated seeds, contribute up to half of the global per capita energy intake. Not surprisingly then, seed biology is one of the most extensively researched areas in plant physiology. Even in relation to the topics reviewed here, a casual perusal of the Agricola database reveals that well over 5000...

Seeds are a vital component of the world’s diet. Cereal grains alone, which comprise -90% of all cultivated seeds, contribute up to half of the global per capita energy intake. Not surprisingly then, seed biology is one of the most extensively researched areas in plant physiology. Even in relation to the topics reviewed here, a casual perusal of the Agricola database reveals that well over 5000...