Results 61 to 70 of about 27,354 (256)

Seed production in dianthus (Dianthus plumaris L.) : a thesis presented in partial fulfilment of the requirement for the degree of Master of Applied Science in Seed Technology at Massey University, Palmerston North, New Zealand [PDF]

open access: yes, 1998
Stigma receptivity, method of pollination and seed production under glass house and field conditions of ten Hammett Dianthus (Dianthus plumaris L.) cultivars were investigated in this study.
Hewage, Nandana Pushpakumara
core  

The effect of sheltered load on reproduction in Solanum carolinense, a species with variable self-incompatibility [PDF]

open access: yes, 2009
In previous studies, we have investigated the strength of self-incompatibility (SI) in Solanum carolinense, a highly successful weed with a fully functional SI system that inhabits early successional and other disturbed habitats.
Keser, L.H.   +2 more
core   +2 more sources

Ovulating Female of Nine‐Spined Sticklebacks (Pungitius sinensis) Are Attracted to Substances Derived From Male Kidneys

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Male sticklebacks (Gasterosteidae) produce an adhesive protein called “spiggin” in the tubular epithelial cells of their kidneys, which they use to attach plants or plant debris together and build nesting sites. Spiggin is a glycoprotein excreted in urine.
Miki Nagaya   +2 more
wiley   +1 more source

The concentration of elements in the central vacuole sap and endosperm tissue during embryogenesis (Clivia miniata Regel)

open access: yesActa Societatis Botanicorum Poloniae, 2014
Changes in the concentration of eight elements (K, Na, Ca, Mg, Fe, Mn, Zn, Cu) in the central vacuole sap and endosperm tissue during development of Clivia miniata ovules using atomic absorption spectrometry were determined.
Marian Ryczkowski, Witold Reczyński
doaj   +1 more source

Molecular cloning and transcriptional activity of a new Petunia calreticulin gene involved in pistil transmitting tract maturation, progamic phase, and double fertilization [PDF]

open access: yes, 2013
Calreticulin (CRT) is a highly conserved and ubiquitously expressed Ca2+-binding protein in multicellular eukaryotes. As an endoplasmic reticulum-resident protein, CRT plays a key role in many cellular processes including Ca2+ storage and release ...
A Christensen   +59 more
core   +2 more sources

Variation in pollen limitation among reproductive modules points to likely resource reallocation in the alpine plant Veratrum grandiflorum

open access: yesNordic Journal of Botany, EarlyView.
Pollen limitation, a decrease in seed production due to insufficient pollen receipt, may influence plant demography and the evolution of sexual systems. Its empirical estimation of pollen supplementation of some of the flowers on an individual is well known to be prone to overestimation due to potential resource reallocation among the individual's ...
Xia Jiang   +6 more
wiley   +1 more source

The Peach RGF/GLV Signaling Peptide pCTG134 Is Involved in a Regulatory Circuit That Sustains Auxin and Ethylene Actions [PDF]

open access: yes, 2017
In vascular plants the cell-to-cell interactions coordinating morphogenetic and physiological processes are mediated, among others, by the action of hormones, among which also short mobile peptides were recognized to have roles as signals.
Dale F. Mierke   +10 more
core   +5 more sources

Seed characters and their usefulness in the separation of Asteraceae species

open access: yesActa Scientiarum: Biological Sciences, 2015
Studies on seed structure of Asteraceae have received little attention of botanists. Seed structure in Asteraceae is analyzed to evaluate the usefulness of characters in the separation of species through the analysis of nine weedy species.
Michelli Fernandes Batista   +3 more
doaj   +1 more source

Toward in vitro fertilization in Brachiaria spp. [PDF]

open access: yes, 2010
Brachiaria are forage grasses widely cultivated in tropical areas. In vitro pollination was applied to accessions of Brachiaria spp. by placing pollen of non-dehiscent anthers on a solid medium near isolated ovaries.
Alves, E.R.   +5 more
core   +2 more sources

Breynia phuongiana (Phyllanthaceae), a new species from the Central Highlands of Vietnam

open access: yesNordic Journal of Botany, EarlyView.
A new species, Breynia phuongiana (Phyllanthaceae subgen. Sauropus), is described and illustrated from the Central Highlands of Vietnam. It is morphologically similar to B. beillei, B. bonii, and B. thorelii, but differs in having oblong‐elliptic leaves, sepals marked with reddish striations, an androphore exceeding 1 mm in length, and distinctly ...
Van Canh Nguyen   +6 more
wiley   +1 more source

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