Results 21 to 30 of about 58,703 (187)

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

open access: yes, 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).
Fitt, B. D. L.   +4 more
core   +1 more source

Filocrono de genótipos de arroz irrigado em função de época de semeadura Phyllochron of rice genotypes as a function of sowing date

open access: yesCiência Rural, 2007
O filocrono é definido como o tempo necessário para o aparecimento de folhas sucessivas em um colmo, no caso de espécies da família das Poáceas. Através do filocrono, pode-se calcular o número de folhas acumuladas, o que é uma excelente maneira de ...
Nereu Augusto Streck   +9 more
doaj   +1 more source

A reliable system for the transformation of cantaloupe charentais melon (Cucumis melo L. var. cantalupensis) leading to a majority of diploid regenerants [PDF]

open access: yes, 2000
An efficient system of transformation leading to a majority of transformed diploid plants from leaf explants of Cucumis melo L. var. Cantalupensis (cv. Védrantais) was developed.
Roustan, Jean-Paul   +4 more
core   +1 more source

Características morfogênicas e estruturais do capim-marandu submetido a combinações de alturas e intervalos de corte Morphogenetic and structural characteristics of marandu palisadegrass subjected to combinations of cutting heights and cutting intervals

open access: yesRevista Brasileira de Zootecnia, 2011
Desenvolveu-se este estudo com o objetivo de avaliar o acúmulo de forragem e as características morfogênicas e estruturais do capim-marandu submetido a combinações de alturas e intervalos de corte. O experimento foi realizado no período de agosto de 2003
Gelson dos Santos Difante   +6 more
doaj   +1 more source

Distribution characteristics of polycyclic aromatic hydrocarbons in Chinese flowering cabbage in different periods [PDF]

open access: yesE3S Web of Conferences, 2023
The purpose of this study is to investigate the distribution characteristics of polycyclic aromatic hydrocarbons (PAHs) in Chinese flowering cabbage at different growth stages, and provide reference for people's daily diet and production activities.
He Gangjian, Sun Qiaojian, Long Minghua
doaj   +1 more source

Agrometeorological models for predicting seedlings development of two native forest species

open access: yesScientia Agricola, 2021
Models of development are tools that connect the effects of development on the environment, allowing their applications in several studies. Nevertheless, studies are scarce on models of development for native forest species in Brazil. This study aimed to
Fabrina Bolzan Martins   +2 more
doaj   +1 more source

Evaluation of simple hand-held Mechanical systems for harvesting tea (Camellia Sinensis) [PDF]

open access: yes, 2006
Over an eight-year period, harvesting methods based on simple mechanical aids (blade and shear) were evaluated against hand harvesting on mature morphologically contrasting tea clones in Southern Tanzania.
Nixon, D. J.   +5 more
core   +1 more source

Crescimento de espécies do gênero Brachiaria, sob déficit hídrico, em casa de vegetação Effect of water deficit on the growth of Brachiaria species in greenhouse

open access: yesRevista Brasileira de Zootecnia, 2005
Avaliaram-se as características morfogênicas, fisiológicas e produtivas de espécies de Brachiaria, durante e após período de estresse hídrico. Os tratamentos foram arranjados em um esquema fatorial 4 x 5 quatro espécies de Brachiaria (B.
Jorge Luiz Schirmer de Mattos   +2 more
doaj   +1 more source

Morphogenetic traits and biomass accumulation of Brachiaria brizantha cv. Xaraés subjected to nitrogen doses

open access: yesRevista Brasileira de Zootecnia, 2012
The objective of this experiment was to evaluate the morphogenetic traits and biomass accumulation of Brachiaria brizantha cv. Xaraés subjected to doses of N (0, 125, 250, 375 and 500 kg.ha-1 N).
Welton Batista Cabral   +5 more
doaj   +1 more source

Cardinal temperatures and thermal requirements for the initial development of two Brazilian native species [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2019
: The objective of this work was to estimate the cardinal temperatures and to quantify the thermal requirements for the initial development of seedlings of the native tree species Citharexylum myrianthum and Bixa orellana.
Mábele de Cássia Ferreira   +4 more
doaj   +1 more source

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