Results 51 to 60 of about 1,230,887 (337)

Genetic variability studies for yield and yield components in sunflower (Helianthus annuus L.)

open access: yesElectronic Journal of Plant Breeding, 2016
Genetic variability is a crucial tool for improvement of seed yield in sunflower. The analysis of variance of 23 hybrids revealed significant differences for all nine characters studied.
S.M. Supriya   +4 more
doaj   +1 more source

Dissecting the genetic components of a quantitative trait locus for blood pressure and renal pathology on rat chromosome 3 [PDF]

open access: yes, 2017
Background: We have previously confirmed the importance of rat chromosome 3 (RNO3) genetic loci on blood pressure elevation, pulse pressure (PP) variability and renal pathology during salt challenge in the stroke-prone spontaneously hypertensive (SHRSP ...
Beattie, Wendy   +8 more
core   +2 more sources

Between Droughts and Floods: The Seasonal Response of Freshwater Snails in Artificial Reservoirs in the Brazilian Semiarid Region

open access: yesPopulation Ecology, EarlyView.
We investigate the seasonal dynamics of two freshwater snails, Biomphalaria straminea and Melanoides tuberculata, in artificial reservoirs of the Brazilian semiarid region. Despite regulated hydrology, B. straminea exhibited strong seasonal fluctuations associated with dry periods, while M. tuberculata maintained stable populations throughout the year,
Lucas Henrique Sousa da Silva   +6 more
wiley   +1 more source

Studies on Genetic Variability in Gerbera (Gerbera jamesonii Bolus Ex. Hooker F.)

open access: yesJournal of Horticultural Sciences, 2013
Thirteen genotypes of gerbera were evaluated under naturally-ventilated polyhouse in Completely Randomized Block Design during the year 2011-12 to determine genetic variability, heritability and genetic advance for 15 quantitative traits, based on which
Rajiv Kumar
doaj   +1 more source

Moving in the Dark: Enlightening the Spatial Population Ecology of European Cave Salamanders

open access: yesPopulation Ecology, EarlyView.
We assessed individual interactions, movement ecology and activity patterns of a subterranean population of Speleomantes strinatii, applying spatial capture–recapture modeling to a photographic dataset of 104 individuals. ABSTRACT Space use and movement are fundamental aspects of organisms' ecology, mirroring individual fitness, behavior, and life ...
Giacomo Rosa   +2 more
wiley   +1 more source

Genetic variability of rye-xenic-hybrid traits

open access: yesActa Societatis Botanicorum Poloniae, 2014
In field experiments performed in two localities (Smolice, Wrocław) 18 xenic hybrids of winter rye, two testers and standard cultivar Dańkowskie Złote, were analysed. The objects of detailed evaluations were 11 traits. For six of them arithmetic means (x)
Lechosław Grochowski   +3 more
doaj   +1 more source

Two Distinct, Geographically Overlapping Lineages of the Corallimorpharian Ricordea Florida (Cnidaria: Hexacorallia: Ricordeidae) [PDF]

open access: yes, 2011
We examined the genetic variation of the corallimorpharian Ricordea florida; it is distributed throughout the Caribbean region and is heavily harvested for the marine aquarium trade. Eighty-four distinct individuals of R. florida were sequenced from four
Lado-Insua, T.   +4 more
core   +1 more source

Genetic Variability of 15 Robusta Coffee Genotypes Selected by Farmer Based on SSRs Markers [PDF]

open access: yes, 2014
Robusta coffee (Coffea canephora) has been grown widely in Indonesia, especially in Bengkulu Province. For the last few decades, some farmers have been selected and developed several Robusta clones through plagiotropic shoot grafting technique to replace
Dani, D. (Dani)   +4 more
core   +1 more source

Infection Models for Pine Wilt Disease on the Basis of Vector Behaviors

open access: yesPopulation Ecology, EarlyView.
Infection models for pine wilt disease without vector density were built to estimate the transmission coefficient of the pathogenic nematode. The models successfully simulated the annual change in the density of infected trees for four pine stands. ABSTRACT Pine wilt disease is caused by the pinewood nematode (Bursaphelenchus xylophilus Steiner et ...
Katsumi Togashi
wiley   +1 more source

High Genetic Diversity and Low Differentiation of Michelia coriacea (Magnoliaceae), a Critically Endangered Endemic in Southeast Yunnan, China [PDF]

open access: yes, 2012
Michelia coriacea, a critically endangered tree, has a restricted and fragmented distribution in Southeast Yunnan Province, China. The genetic diversity, genetic structure and gene flow in the three extant populations of this species were detected by 10 ...
Archak   +54 more
core   +3 more sources

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