Results 31 to 40 of about 1,340 (140)
ABSTRACT Global food demand is predicted to rise anywhere from 59% to 98% by 2050 because of increasing population. However, the continued depletion of natural resources and increasing biotic and abiotic stresses will continue to pose significant threats to global food security in coming years.
Memoona Khalid +5 more
wiley +1 more source
Abstract Scilla s.l. (Asparagaceae: Scilloideae) represents a notable Mediterranean geophyte radiation, yet genus delimitation in subtribe Hyacinthinae has long suffered from inconsistent and conflicting generic concepts. A limited set of informative morphological characters and recurrent shifts in circumscription have repeatedly hindered progress ...
Tim Böhnert +6 more
wiley +1 more source
Base temperature for node emission and plastochron determination in tomato species and their hybrids [PDF]
: The objective of this work was to estimate the base temperature for node emission and plastochron determination in wild species of tomato, in the Redenção cultivar, and in their respective interspecific F1 hybrids.
André Ricardo Zeist +5 more
doaj +1 more source
Taxonomy and phylogeny of the intercontinental disjunctive ferns: series Reniformia Adiantum
There are disputed opinions about the three taxa of series Reniformia, namely A. nelumboides X.C.Zhang (A. reniforme var. sinense Y.X.Lin), A. reniforme var. reniforme, and A. reniforme var. asarifolium (Willd.) R. Sim, owing to their similar morphology but intercontinental disjunctive distribution and close lineage with the series Venusta (only ...
Ai‐Hua Wang +9 more
wiley +1 more source
Sporangium Exposure and Spore Release in the Peruvian Maidenhair Fern (Adiantum peruvianum, Pteridaceae). [PDF]
We investigated the different processes involved in spore liberation in the polypod fern Adiantum peruvianum (Pteridaceae). Sporangia are being produced on the undersides of so-called false indusia, which are situated at the abaxial surface of the ...
Simon Poppinga +4 more
doaj +1 more source
Revisiting the life cycle of Margalefidinium polykrikoides Group III
Abstract Dinoflagellates produce cysts as a strategy to withstand environmental stressors, with nutrient depletion generally considered a key trigger for cyst production. Resting cysts are thick‐walled, typically composed of one to several layers, and characterized by a prolonged dormancy period.
Eduardo Pérez‐Vega +3 more
wiley +1 more source
Identificação dos genes Ty-2 e Ty-3 de resistência a begomovírusem genótipos de tomateiro
O objetivo deste trabalho foi identificar a presença dos genes Ty-2 e Ty-3, de resistência a begomovírus, em acessos de tomateiro do Banco de Germoplasma de Hortaliças da Universidade Federal de Viçosa.
Jorge González Aguilera +7 more
doaj +1 more source
Members of the Solanaceae family use diverse cell‐surface receptors to sense microbes and parasites, triggering immune responses that vary across species and cultivars. ABSTRACT Cell‐surface receptors play a central role in plant defence by enabling the perception of microbial signatures upon initial contact, activating immune responses and protecting ...
Rebecca Leuschen‐Kohl +1 more
wiley +1 more source
A revised classification of Rubiaceae subfamily Rubioideae tribe Rubieae*
Abstract In its current circumscription, Rubiaceae subfam. Rubioideae tribe Rubieae consists of 18 genera, i.e., Asperula, Callipeltis, Castrila, Crucianella, Cruciata, Cynanchica, Didymaea, Galium, Hexaphylla, Kelloggia, Mericarpaea, Microphysa, Phuopsis, Pseudogalium, Rubia, Sherardia, Thliphthisa and Valantia.
Joachim W. Kadereit +1 more
wiley +1 more source
Biomass association in specimens and interspecific hybrids of tomatoes
The objective of this study is to analyze the growth of wild species of tomato, of the cultivar Redenção and of the respective F1 hybrids of interspecific crossings.
André Ricardo Zeist +5 more
doaj +1 more source

