Results 11 to 20 of about 199,739 (290)

Morphological and Physiological Responses of Cucumber Seedlings to Different Combinations of Light Intensity and Photoperiod with the Same Daily Light Integral

open access: yesHortScience, 2021
Lighting strategies for morphological and physiological characteristics of horticultural crops often focus on the proper daily light integral (DLI); however, a suitable combination of photosynthetic photon flux density (PPFD) and photoperiod at the same ...
Zhengnan Yan   +5 more
doaj   +1 more source

Sensitivity of Immature \u3ci\u3eThyanta Calceata\u3c/i\u3e (Hemiptera: Pentatomidae) to Photoperiod as Reflected by Adult Color and Pubescence [PDF]

open access: yes, 2017
Dimorphism in color and pubescence of adult Thyanta calceata, in response to 8L:16D and 16L:8D photoperiods, resulted from an accumulation of photoperiod effects on two or more immature stages. More immature stages were receptive to 8L:16D than to 16L:8D
McPherson, J. E
core   +2 more sources

Prediction of Flowering Occurrence in Faba Bean (Vicia faba L.)

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca, 2011
This study is about quantifying response flowering rate to temperature and photoperiod. Results indicated that the response of faba bean flowering rate is described by beta-segmented ( Barekat , Saraziri , Eraghi ) and beta-quadratic functions ( Gavi ).
Hosein AJAM NOROUZI, Farshid VAZIN
doaj   +1 more source

miR-155 Regulates Photoperiod Induced Gonadal Development in Atlantic Salmon (Salmo salar) by Targeting Brain-Derived Neurotrophic Factor

open access: yesFishes, 2023
This study was designed to explore the impact of the photoperiod on the gonadal development and somatic growth of Atlantic salmon raised in recirculating aquaculture systems (RASs), with specific focus on the role that microRNA (miR)-155 plays as a ...
Teng Guo   +5 more
doaj   +1 more source

Phenological Restriction of the Oryza (v3) Model [PDF]

open access: yesRevista Brasileira de Meteorologia
Photoperiod sensitivity affects the rice development cycle and its flowering. Crop simulation models, such as ORYZA (v3), use equations that depend on two main parameters calibrated by the user: sensitivity to photoperiod and minimum optimal photoperiod.
Gutemberg Resende Honorio Filho   +5 more
doaj   +1 more source

Genetic dissection of photoperiod response based on GWAS of pre-anthesis phase duration in spring barley [PDF]

open access: yes, 2014
Heading time is a complex trait, and natural variation in photoperiod responses is a major factor controlling time to heading, adaptation and grain yield.
A Tondelli   +51 more
core   +5 more sources

Mapping QTL associated with photoperiod sensitivity and assessing the importance of QTL×environment interaction for flowering time in maize. [PDF]

open access: yesPLoS ONE, 2010
An understanding of the genetic determinism of photoperiod response of flowering is a prerequisite for the successful exchange of germplasm across different latitudes.
Cuiling Wang   +6 more
doaj   +1 more source

Seasonal changes in moult, body mass and reproductive condition in siskins Carduelis spinus exposed to daylength regimes simulating different latitudes [PDF]

open access: yes, 2011
Birds use change in daylength during the year to time events during their annual cycles. Individual Eurasian siskins Carduelis spinus can breed and winter in widely separated areas in different years.
Dawson, Alistair, Newton, Ian
core   +2 more sources

Attainment of reproductive competence, phase transition, and quantification of juvenility in mutant genetic screens [PDF]

open access: yes, 2014
Plant development between seedling emergence and flowering is characterized by a series of successive qualitative phases: (1) a post embryonic photoperiodinsensitive phase, during which plants are insensitive to photoperiod; (2) a photoperiod ...
Matsoukas, Ioannis G.
core   +2 more sources

Neuronal activity regulates neurotransmitter switching in the adult brain following light-induced stress. [PDF]

open access: yes, 2018
Neurotransmitter switching in the adult mammalian brain occurs following photoperiod-induced stress, but the mechanism of regulation is unknown. Here, we demonstrate that elevated activity of dopaminergic neurons in the paraventricular nucleus of the ...
Deisseroth, Karl   +4 more
core   +1 more source

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