Phase Phenological
Mostrando 13-21 de 21 artigos, teses e dissertações.
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13. Irrigation management of japanese cucumber (Cucumis sativus L.) culture in greenhouse / Manejo de irrigaÃÃo da cultura do pepino japonÃs (Cucumis sativus L.) em ambiente protegido
The culture of cucumber is among the ten biggest commercial interest vegetables in Brazil, this japanese cucumber (Cucumis sativus L.) culture in greenhouse has been introduced by producers from the green belt region of SÃo Paulo city. The culture in greenhouse is a modern technology which assists in reducing the effect of the seasonality on the production,
Publicado em: 2009
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14. Modulação da rede de trocas gasosas em um cultivar de cana-de-açúcar tolerante a seca: o papel do fósforo / Network modulation of leaf gas exchange in a drought tolerant sugarcane cultivar under water deficit: a role of Phosphorus
Drought is one of the main abiotic stresses causing significant reduction of crop yield in most of agricultural areas in tropical and subtropical regions. Particularly, water deficit is the major environmental factor limiting sugarcane yield. The objective of this study was to identify what kind of changes in the photosynthetic network would be linked to the
Publicado em: 2009
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15. Análises biométricas e mapeamento de QTLS para tolerância à seca em milho / Biometric analysis and mapping of QTLS for drought tolerance in maize
One of the major goals of crop improvement is the increase in agricultural productivity associated with the improvement for the consumption in human or animal feeding. These goals can be achieved through improvements in environmental conditions or by improving the genetic potential of populations. Recently, much has been discussed about global warming, clima
Publicado em: 2009
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16. Coffee leaf analysis using DRIS from irrigated and non-irrigated plantations in the alto Paranaíba region / Diagnose foliar em cafeeiro de sequeiro e irrigado na região do alto Paranaíba com o uso do DRIS
Cerrado soils have low fertility and under-dosing of fertilizers leads to nutritional imbalance on coffee plantations. This study aimed to: comparatively characterize the main deficiencies, nutritional imbalances and excesses in the aerial part of coffee plant; indicate nutrients which respond well to fertilization and their synergistic and antagonistic inte
Publicado em: 2009
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17. Avaliação biológica de estruturas florais em macieira e sua relação com a qualidade do fruto
The apple tree is characterized by the different floral structures. Several researches show a relationship between the production and fruit quality and the original fruiting structure. The aim of this study was to evaluate the relationship between the floral structure and the fruit quality in the cultivars Gala, Fuji and Daiane in the mild climatic condition
Publicado em: 2008
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18. GRAPHIC SIMULATION OF CORN GROWTH / SIMULAÇÃO GRÁFICA DO CRESCIMENTO DE PLANTAS DE MILHO
The computer graphic simulation can be used to understand plant growth and development influenced by biotic or abiotic parameters. The main simulation purposes are: (i) to predict plant agronomic characteristics when its submitted to different climatic, environmental, and physical factors; (ii) to analyze the influence of these factors in plant growth and de
Publicado em: 2007
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19. Fenologia e chuva de sementes em Floresta Estacional Semidecidual no município de Viçosa, Minas Gerais, Brasil. / Phenology and seed rain in Semidecidual Seasonal Forest in Viçosa, Minas Gerais, Brazil
The present study was divided in two chapters. On the first it was aimed to study the phenology of 20 arboreal species and to answer the following questions: (1) Which is the seasonality degree in the production of flowers, fruits, falling and leaf shooting? (2) Are there any flowering and fructification synchrony intra and interespecific? (3) What is the in
Publicado em: 2007
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20. Espaçamentos ultra-adensado, adensado e convencional com densidade populacional variável em algodoeiro. / Ultra-narrow row, narrow row and conventional row with cotton variable density plant population.
The purpose of this work was to study plant population density, by spacing between rows and plants per linear meter for the IAC 23 cotton cultivar under ultra-narrow row, narrow row or conventional row by analyzing plant growth, development and yield. The experiment was established in the experimental field of ESALQ/USP, Piracicaba, São Paulo, during the 20
Publicado em: 2003
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21. Soybean canopy [Glycine max (L.), Merril photosynthetic pigments estimation by measns of spectral reflectance / Utilização da reflectância espectral para a estimativa de pigmentos fotossintéticos em dosséis de soja [Gycine Max (.L), Merril]
Photosynthetic pigments are essential for plant development, because they are responsible for the incident solar energy absorption used in photosynthesis. Individually quantifying these pigments in great extensions of agricultural crops has been made possible by hyperspectral remote sensing development and these information can be used to produce a more accu
Publicado em: 2002