Specimens of Ruppia from all eleven Nebraska counties in which it is known fall into two groups: R. occidentalis in alkaline Sandhills waters and R. maritima in saline waters of the Platte River Valley and Lancaster County. Ruppia occidentalis is distinguished by its more robust size; redspotted leaves and stems; terete, entire, obtuse leaves; 4-8(9) carpels; and by two elliptic white spots on ...

Morphological, structural and developmental features of fruits and seeds of Mammea americana L. are here studied, with the purpose to give a proper classification of their fruit and embryo type and to contribute to future taxonomical and ecological studies. The fruit is a berry and the "rind" consists of the exocarp, represented by a periderm with lenticels, and by the parenchymatic mesocarp, w...

Endocarp lignifi cation is important fruit growth phenophase since aft er its completion fruit starts with oil accumulation. Th e information about duration of endocarp lignifi cation is important for timing of management practices, irrigation and pest control in oil cultivars, and fruit thinning in table cultivars to obtain uniform fruit weight and size. In this study, fruit length, width and ...

Post-dispersal seed agents of mortality include pathogens, invertebrates, and vertebrates, which may shape tropical tree populations and communities. In this study I experimentally evaluated Dipteryx alata endocarp removal both in the interior and edge of Cerrado vegetation. Specifically, I simulated primary dispersion of endocarps by bats and evaluated secondary removal intensity according to ...

Lignin is the main component of walnut endocarp, however, we know little about transcriptional responses and its potential regulatory mechanisms lignin formation in endocarp. Here selected two genotypes with different endocarp thickness, ‘Liaoning 7’ (L7) ‘Zanmei’ (ZM; thicker than L7), to study response mechanism that caused difference this character between them. The time regularity depositio...

the hydro-distilled volatile oils, obtained from dried e ndocarp and hulls of persian bay laurel ( laurus nobilis var. angustifolia ) from laueaceae family were analyzed by gc/ms. thirteen and twelve compounds consisting 81.6% and 89.1% of the total components were identified of the oils obtained with a yield of 3% and 1.2% (w/w) respectively. differences of some compounds between endocarp and ...

Goal. To establish the influence of quantitative biometric parameters black nut fruit on dormancy its seeds. Methods. The results research were processed according to generally accepted methods in agriculture, plant growing, statistics. Field — collect fruits, measuring weight determine parameters, spectrometric, mathematical-statistical carry out analysis variance and statistical processing as...

We previously reported that an apparent water potential disequilibrium is maintained late in muskmelon (Cucumis melo L.) seed development between the embryo and the surrounding fruit tissue (mesocarp). To further investigate the basis of this phenomenon, the permeability characteristics of the tissues surrounding muskmelon embryos (the mucilaginous endocarp, the testa, a 2- to 4-cell-layered pe...

Considering that cultivars of peach rootstocks selected to be propagated by seeds show variation in the degree physiological dormancy and peculiarities regarding limitation imposed endocarp, it is essential define cold stratification period ideal temperature used during pre-germination treatment. Isolated for each cultivar, knowledge these variables which will provide viability production via s...