Results 61 to 70 of about 309,873 (200)

Developmental morphology of ovules and seeds of Nymphaeales [PDF]

open access: yesAmerican Journal of Botany, 2001
Ovule and seed development in six species of Nymphaeales was examined. In the Cabombaceae the two species studied resemble some extant basal angiosperms by having a hood‐shaped outer integument. A micropyle–hilum complex results when the outer integument and derived testa are lacking between the micropyle and the funiculus, thus the hood‐shaped ...
T, Yamada, R, Imaichi, M, Kato
openaire   +2 more sources

Bletilla striata (Orchidaceae) Seed Coat Restricts the Invasion of Fungal Hyphae at the Initial Stage of Fungal Colonization

open access: yesPlants, 2019
Orchids produce minute seeds that contain limited or no endosperm, and they must form an association with symbiotic fungi to obtain nutrients during germination and subsequent seedling growth under natural conditions.
Chihiro Miura   +4 more
doaj   +1 more source

Seed Dormancy and Preharvest Sprouting in Quinoa (Chenopodium quinoa Willd)

open access: yesPlants, 2021
Quinoa (Chenopodium quinoa Willd.) is a culturally significant staple food source that has been grown for thousands of years in South America. Due to its natural drought and salinity tolerance, quinoa has emerged as an agronomically important crop for ...
Emma M. McGinty   +2 more
doaj   +1 more source

The Melianthaceous seed and its Rhamnaceous affinity [PDF]

open access: yes, 1998
. La semilla de Melianthaceae y su afinidad con Rhamnaceae. En el presente trabajo, se ha estudiado la anatomia y morfología de la semilla de Bersama (Bersamataceae) y Melianthus (Melianthaceae) con el objeto de clarificar su posición sistemática.
Doweld, Alexander B.
core   +2 more sources

Morphological characterization of berry fruits seeds

open access: yesPomologia Croatica : Glasilo Hrvatskog agronomskog društva, 2018
Veličina i svojstva sjemenki jagodastih voćnih vrsta važan su parametar koji utječe na iskoristivost sjemenki odnosno produkciju pojedinih kemijskih komponenti prilikom njihova iskorištavanja kao nusprodukta prerade plodova. Sjemenke manjih dimenzija potrebno je opisivati s što više parametara, a danas je to moguće računalno razvijenim metodama.
Skendrović Babojelić, Martina   +1 more
openaire   +1 more source

Seed Geometry in Species of the Nepetoideae (Lamiaceae)

open access: yesHorticulturae
The Nepetoideae are a subfamily of the Lamiaceae with 124 genera in three tribes: Elsholtzieae, Mentheae and Ocimeae. Their seeds have variable shapes, described in the literature by using adjectives derived from geometry, such as ellipsoid or elliptic ...
Diego Gutiérrez del Pozo   +4 more
doaj   +1 more source

Morfología de semillas de Calluna Salisb. [PDF]

open access: yes, 2004
Morfología de semillas de Calluna Salisb. (Ericaceae). Se estudia la morfología de las semillas de Calluna vulgaris (L.) Hull, única especie de Calluna Salisb. (Ericaceae).
Fagúndez, Jaime, Izco, Jesús
core   +1 more source

Scorzonera sensu lato (Asteraceae, Cichorieae) – taxonomic reassessment in the light of new molecular phylogenetic and carpological analyses [PDF]

open access: yes, 2020
Scorzonera comprises 180–190 species and belongs to the subtribe Scorzonerinae. Its circumscription has long been the subject of debate and available molecular phylogenetic analyses affirmed the polyphyly of Scorzonera in its wide sense.
Jones, Katy   +6 more
core   +3 more sources

Morphological Characteristics of Weed Seed Fibers

open access: yesWeed & Turfgrass Science, 2014
In this study, to obtain basic data for searching potential resources as new natural fibers, we investigated morphological and classificatory characteristics of 21 weed seed fibers. According to classification keys in this study, the collected weed seed fibers could be classified into total 13 types, showing their diversity.
A Ra Yoon   +3 more
openaire   +2 more sources

Natural regeneration of broadleaved tree species in southern Sweden [PDF]

open access: yes, 2001
The objective of the present thesis was to examine the effects of silvicultural treatments and seed dispersal from surrounding stands on the establishment of natural regeneration of broadleaved tree species in southern Sweden.
Karlsson, Matts
core  

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