Results 41 to 50 of about 1,865,920 (327)

Genetic control of duration of pre-anthesis phases in wheat (Triticum aestivum L.) and relationships to leaf appearance, tillering, and dry matter accumulation

Journal of Experimental Botany, 2011
The duration of pre-anthesis developmental phases is of interest in breeding for improved adaptation and yield potential in temperate cereals. Yet despite numerous studies on the genetic control of anthesis (flowering) time and floral initiation, little ...
Gisela Borràs-Gelonch, G. Rebetzke, R. Richards, I. Romagosa   +3 more
semanticscholar   +1 more source

Características morfogênicas e estruturais do capim-tanzânia submetido a doses de fósforo e nitrogênio Morphogenetic and structural characteristics of tanzaniagrass submited to phosphorus and nitrogen fertilization

Revista Brasileira de Zootecnia, 2007
O experimento foi realizado em casa de vegetação, no período de maio a agosto de 2005, com o objetivo de avaliar o efeito da adubação fosfatada e nitrogenada sobre as características morfogênicas e estruturais do capim-tanzânia.
Neusete Maria da Silva Patês, Aureliano José Vieira Pires, Cristina Cavalcante Felix da Silva, Luciana Carvalho Santos, Gleidson Giordano Pinto de Carvalho, Mário Alberto Lopes Freire   +5 more
doaj   +1 more source

A successive time-to-event model of phyllochron dynamics for hypothesis testing: application to the analysis of genetic and environmental effects in maize

Plant Methods, 2023
Background The time between the appearance of successive leaves, or phyllochron, characterizes the vegetative development of annual plants. Hypothesis testing models, which allow the comparison of phyllochrons between genetic groups and/or environmental ...
Sandra Plancade, Elodie Marchadier, Sylvie Huet, Adrienne Ressayre, Camille Noûs, Christine Dillmann   +5 more
doaj   +1 more source

CO2Effects on Phasic Development, Leaf Number and Rate of Leaf Appearance in Wheat [PDF]

Annals of Botany, 1997
It has been predicted that the concentration of CO2in the air could double during the 21st century. Though it is recognized that CO2-doubling could increase yield through its effects on plant photosynthesis and stomatal behaviour, it is unclear whether CO2-doubling will change phasic development in wheat.
openaire   +1 more source

Emissão e expansão foliar em três genótipos de tomateiro (Lycopersicon esculentum Mill.) Leaf emergence and expansion in three tomato (Lycopersicon esculentum Mill.) genotypes

Ciência Rural, 2007
O objetivo deste trabalho foi estimar o filocrono na haste principal e em hastes laterais de primeira ordem e estimar a área foliar a partir do número de folhas em três genótipos de tomateiro cultivados em estufa plástica. Um experimento foi conduzido em
Carina Rejane Pivetta, Ivonete Fatima Tazzo, Guilherme Fabiano Maass, Nereu Augusto Streck, Arno Bernardo Heldwein   +4 more
doaj   +1 more source

Leaf appearance of annual clovers responds to photoperiod at emergence [PDF]

European Journal of Agronomy, 2016
Abstract Leaf appearance rate and time to canopy expansion of four annual clover species (arrowleaf, balansa, gland and Persian) were quantified in field and controlled environment studies. Crops sown in autumn, which experienced shortening daylengths at emergence, had a slower rate of leaf production and consequently took a longer time to initiate ...
H., Nori, D.J., Moot, A.D., Black
openaire   +2 more sources

Impact of elevated temperature scenarios on potato leaf development Impacto de cenários de aumento de temperatura no desenvolvimento foliar da batata

Engenharia Agrícola, 2012
The objective of this study was to simulate the impact of elevated temperature scenarios on leaf development of potato in Santa Maria, RS, Brazil. Leaf appearance was estimated using a multiplicative model that has a non-linear temperature response ...
Nereu A. Streck, Lilian O. Uhlmann, Alencar J. Zanon, Dilson A. Bisognin   +3 more
doaj   +1 more source

Métodos de soma térmica e datas de semeadura na determinação de filocrono de cultivares de trigo Thermal time methods and sowing dates in phyllochron determination in wheat cultivars

Pesquisa Agropecuária Brasileira, 2009
O objetivo deste trabalho foi avaliar o efeito dos métodos de cálculo de graus-dia e de datas de semeadura na determinação do filocrono de cultivares de trigo (Triticum aestivum).
Hamilton Telles Rosa, Lidiane Cristine Walter, Nereu Augusto Streck, Cleber Maus Alberto   +3 more
doaj   +1 more source

Base temperature for leaf appearance and phyllochron of selected strawberry cultivars in a subtropical environment

, 2011
Leaf development is characterized by the appearance of new leaves and is related to crop leaf area index, which affects the interception of solar radiation used for photosynthesis and biomass production and ultimately defines crop yield.
Hamilton Telles Rosa, Lidiane Cristine Walter, N. Streck, J. L. Andriolo, M. R. D. Silva, J. A. Langner   +5 more
semanticscholar   +1 more source

Analysis of leaf appearance, leaf death and phoma leaf spot, caused by Leptosphaeria maculans, on oilseed rape (Brassica napus) cultivars [PDF]

Annals of Applied Biology, 2010
Development of phoma leaf spot (caused by Leptosphaeria maculans) on winter oilseed rape (canola, Brassica napus) was assessed in two experiments at Rothamsted in successive years (2003–04 and 2004–05 growing seasons). Both experiments compared oilseed rape cultivars Eurol, Darmor, Canberra and Lipton, which differ in their resistance to L.
Powers, S. J., Pirie, E. J., Latunde-Dada, A. O., Fitt, B. D. L.   +3 more
openaire   +1 more source