Results 11 to 20 of about 52,441 (254)

تأثیر سطوح شوری آب آبیاری با NaCl بر فیلوکرون و سرعت ظهور برگ ارقام جو [PDF]

open access: yesتنش های محیطی در علوم زراعی, 2016
شوری منابع آب‌وخاک از مهم‌ترین مشکلات کشاورزی در مناطق خشک و نیمه‌خشک ایران است. برای بررسی تأثیر شوری آب آبیاری بر فیلوکرون و سرعت ظهور برگ ارقام جو، آزمایشی به‌صورت فاکتوریل در قالب طرح پایه بلوک‌های کامل تصادفی با سه تکرار در گلخانه دانشکده کشاورزی ...
رئوف سیدشریفی   +1 more
doaj   +1 more source

Phenology and Floret Development as Affected by the Interaction between Eps-7D and Ppd-D1

open access: yesPlants, 2021
Earliness per se (Eps) genes may play a critical role in further improving wheat adaptation and fine-tuning wheat development to cope with climate change.
Priyanka A. Basavaraddi   +4 more
doaj   +1 more source

Phyllochron and leaf appearance rate in oat [PDF]

open access: yesBragantia, 2017
Abstract Phyllochron and leaf appearance rate are both important parameters in the production efficiency of agricultural crops. The objectives of this study were to determine the phyllochron and leaf appearance rate in 4 oat cultivars (Avena sativa L.) in 3 sowing dates and verify the variability of phyllochron and leaf appearance rate among cultivars ...
Chaves, Gabriela Görgen   +8 more
openaire   +3 more sources

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

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

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

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

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

Cardinal temperatures and modeling of vegetative development in guava [PDF]

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2019
The aim of this study was to estimate cardinal temperatures (base, optimum, and maximum), and simulate the vegetative development of guava crop through phyllochron (linear) and Wang and Engel (nonlinear) models at the seedling phase.
Mábele de C. Ferreira   +3 more
doaj   +1 more source

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