Results 81 to 90 of about 1,939 (182)

Agronomic management response in maize (Zea mays L.) production across three agroecological zones of Kenya

Agrosystems, Geosciences &Environment, Volume 7, Issue 1, March 2024.
Abstract Maize (Zea mays L.) productivity in Kenya has witnessed a decline attributed to the effects of climate change and biophysical constraints. The assessment of agronomic practices across agroecological zones (AEZs) is limited by inadequate data quality, hindering a precise evaluation of maize yield on a large scale. In this study, we employed the
Harison Kiplagat Kipkulei, Sonoko Dorothea Bellingrath‐Kimura, Marcos Lana, Gohar Ghazaryan, Roland Baatz, Custodio Matavel, Mark Boitt, Charles B. Chisanga, Brian Rotich, Rodrigo Martins Moreira, Stefan Sieber   +10 more
wiley   +1 more source

Características morfogênicas de gramíneas nativas do Sul do Brasil sob níveis de nitrogênio Morphogenetic characteristics of natural grasses of South Brazil under nitrogen levels

Ciência Rural, 2013
Este estudo teve como objetivo avaliar, no outono, as características morfogênicas de oito gramíneas nativas da região central do Rio Grande do Sul, classificadas sob uma tipologia funcional, segundo o teor de matéria seca e a área foliar específica em A,
Aline Bosak dos Santos, Fernando Luiz Ferreira de Quadros, Liane Seibert Ustra Soares, Marta Gomes da Rocha, Juliana Medianeira Machado, Ana Paula Machado Martini   +5 more
doaj  

Phenological characterization, phyllochron and thermal requirement of Italian tomato in two cropping seasons

, 2017
O objetivo deste trabalho foi avaliar o filocrono e o requerimento termico de hibridos de tomateiro italiano nas diferentes fases fenologicas e em diferentes ciclos de cultivo. Os experimentos foram conduzidos na area experimental da Universidade Federal
Denise Schmidt, Débora Turchetto Zamban, D. Prochnow, B. Caron, V. Q. de Souza, G. M. de Paula, Carine Cocco   +6 more
semanticscholar   +1 more source

Thermal Time as a Parameter to Determine Optimal Defoliation Frequency of Perennial Ryegrass (Lolium perenne L.) and Pasture Brome (Bromus valdivianus Phil.)

Agronomy, 2020
The herbage mass and nutritional value of harvested forage are fundamental determinants of the production potential of pastoral systems. The objective of this study was to evaluate the growth dynamics and accumulated herbage mass expressed in dry matter (
Iván Calvache, Oscar Balocchi, Máximo Alonso, Juan Pablo Keim, Ignacio F. López   +4 more
doaj   +1 more source

Phyllochron and number of leaves of canola in different environmental conditions [PDF]

, 2013
O objetivo deste trabalho foi determinar o número de folhas e o filocrono de genótipos de canola, em resposta a variações térmicas associadas com datas de semeadura.
Fochesatto, Elizandro, Santi, Anderson, Cunha, Gilberto Rocca da, Nied, Astor Henrique, Tazzo, Ivonete Fátima, Bolis, Laise Maria, Bergamaschi, Homero, Dalmago, Genei Antonio, Kovaleski, Samuel   +8 more
core   +1 more source

Temperatura base e filocrono em duas cultivares de oliveira Base temperature and phyllochron in two olive cultivars [PDF]

, 2012
O objetivo deste trabalho foi estimar a temperatura base para emissão de folhas e determinar o filocrono em duas cultivares de oliveira, 'Arbequina' e 'MGS ASC315', durante a fase de muda em condições de campo.
Fabrina Bolzan Martins, Diogo da Fonseca Reis, Marcos Vinícius Marques Pinheiro   +2 more
core   +1 more source

Assessment of phyllochron and tillers contribution to grain yield of rice

, 2018
Field experiments were carried out at Tamil Nadu Agricultural University, Coimbatore, India during samba (August-December) season of 2012 and 2013 to address the contribution of phyllochron and main culm, primary, secondary and tertiary panicles to grain
Nandhakumar, K. Velayudham, N. Thavaprakaash, R. Govindan   +3 more
semanticscholar   +1 more source

Características produtivas, morfogênicas e estruturais do capim Piatã submetido à adubação orgânica Structural, morphogenetic and productive features of Piatã Grass subjected to organic fertilization

Ciência Rural, 2013
A adubação orgânica pode ser uma alternativa viável na produção de gramíneas forrageiras, no entanto poucas são as informações referentes às doses e à composição dos principais adubos orgânicos.
Marco Antonio Previdelli Orrico Junior, Stanley Ribeiro Centurion, Ana Carolina Amorim Orrico, Arley Borges de Morais Oliveira, Natália da Silva Sunada   +4 more
doaj  

Phyllochron of Paspalum notatum FL. and Coelorhachis selloana (HACK.) camus in natural pasture Filocrono de Paspalum notatum FL. e Coelorhachis selloana (HACK.) camus em pastagem natural

Scientia Agricola, 2004
Leaf appearance rate and phyllochron are related variables which play a central role in forage production. Phyllochron is the time interval between the appearance of successive leaves and varies according to a number of environmental factors, among which
Lilian Eggers, Mónica Cadenazzi, Ilsi Iob Boldrini   +2 more
doaj   +1 more source

Effect of temperature, vernalization and water stress on phyllochron and final main-stem leaf number of HY320 and Neepawa spring wheats

, 1992
An understanding of the effect of environment on leaf growth is needed to accurately simulate phenological development of a cereal crop. This study was conducted to determine the effect of temperature, cold (vernalization) and water stress on the ...
Y. W. Jame, P. G. Jefferson, H. W. Cutforth   +2 more
core   +1 more source