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Influence of woody species on aerial growth of perennial grasses in semi-arid rangelands of central Argentina Phyton
Blazquez,FR; Peláez,DV; Andrioli,RJ; Elia,OR.
The interaction between woody and grass species in semi-arid rangelands of central Argentina was assessed through the evaluation of the impact of woody species on grass growth over a 2-y period. The study comprised two morpho-physiologically different woody species and two cool-season perennial grass species highly preferred by domestic livestock. The study involved the assessment of total green length (TGL) and number of green leaves (NGL) per tiller in grasses growing beneath the canopy of woody species and in open rangeland areas. Soil temperature, pH and water, nitrogen, phosphorus and organic matter content were estimated at the same study sites. Precipitation during the study period was also recorded. Woody species induced higher TGL of grasses...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Canopy architecture; Soil temperature; Soil water content; Tiller green length.
Ano: 2014 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572014000200023
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Productive and vegetative behavior of olive cultivars in super high-density olive grove Scientia Agricola
Proietti,Primo; Nasini,Luigi; Reale,Lara; Caruso,Tiziano; Ferranti,Francesco.
In recent years, there has been an increase in interest in super high-density (SHD) olive (Olea europaea L.) groves because they offer early entry into production, increased productivity and the possibility of using modified mechanical vine harvesters. This study was carried out in a young SHD olive grove to examine vegetative, histo-anatomical and productive characteristics and oil quality of the Spanish Arbequina and Italian Maurino and Leccino cultivars, characterized by low, low-to-medium and high vigor, respectively. Arbequina had low vigor and limited development in height and width, as well as a high leaf/wood ratio. Maurino had a canopy volume similar to that of Arbequina and, despite a great tendency to grow in height, had low vigor, a rather...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Canopy architecture; Leaf anatomy; Leaf area index; Oil quality.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162015000100020
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Microclimatic conditions in the canopy strata and its relations with the soybean yield Anais da ABC (AABC)
SCHWERZ,FELIPE; CARON,BRAULIO O.; ELLI,ELVIS F.; STOLZLE,JOHN R.; MEDEIROS,SANDRO L.P.; SGARBOSSA,JAQUELINE; ROCKENBACH,ANA P..
Abstract: Despite its economic importance, the microclimate in soybean canopies has not yet been studied in detail. Such a study can yield valuable information regarding the interaction of a crop with its environment. In this context, the aim of this study was to evaluate the solar radiation dynamic and yield responses for each canopy strata for two soybean cultivars with determined and undetermined growth habits. A field study was conducted during the 2013/2014 and 2014/2015 growing seasons in the city of Frederico Westphalen, Rio Grande do Sul, Brazil. The cultivar NA6411, with a determinate growth habit, presented a greater interception of radiation in the middle and lower canopies strata which results in higher soybean yield when compared to the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Canopy architecture; Glycine max L.; Radiation use efficiency; Extinction coefficient.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500861
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