Results 21 to 30 of about 20,661 (256)

Gas exchange, phisiological indexes and ionic accumulation in Annona emarginata (Schltdl.) H. Rainer seedlings in nutrients solution

open access: yesRevista Brasileira de Fruticultura, 2013
"Araticum-de-terra-fria" (Annona emarginata (Schltdl.) H. Rainer) has been consider a good alternative in rootstock production for the main commercial Annonaceae species.
Daniel Baron   +4 more
doaj   +1 more source

Effect of plant density on growth indices of four grain sorghum cultivars

open access: yesپژوهشهای زراعی ایران, 2009
To study the effect of plant density on growth indices of four grain sorghum cultivars an experiment was conducted as factorial based on Compelete Randomized Block Design with 3 replications at Experimental Field of Birjand Azad University in 2003 ...
hamed javadi   +4 more
doaj   +1 more source

Assimilation of satellite reflectance data into a dynamical leaf model to infer seasonally varying leaf areas for climate and carbon models [PDF]

open access: yesJournal of Geophysical Research: Atmospheres, 2008
Leaf area index is an important input for many climate and carbon models. The widely used leaf area products derived from satellite‐observed surface reflectances contain substantial erratic fluctuations in time due to inadequate atmospheric corrections and observational and retrieval uncertainties.
Q. Liu   +5 more
openaire   +1 more source

Multiscale leaf area index assimilation for Moso bamboo forest based on Sentinel-2 and MODIS data

open access: yesInternational Journal of Applied Earth Observation and Geoinformation, 2021
Leaf area index (LAI) is an important driving factor in forest ecosystems carbon cycle, the acquisition of multiscale LAI can illustrate the carbon cycle at different scales and its dynamic response to environmental changes. Moso bamboo forest (MBF) has strong carbon sequestration capability and unique phenological characteristics of on-years and off ...
Jiayi Ji   +8 more
openaire   +2 more sources

Growth and conversion of solar energy of grafted tomato plants under protected cultivation

open access: yesSemina: Ciências Agrárias, 2015
The grafting technique favors cultivation tomato under conditions environment adverse, being the effects on the physiology of scarce plants. Thus, this study aimed to evaluate the growth and solar energy conversion efficiency in grafted tomato and not ...
Tiago Pedó   +3 more
doaj   +1 more source

Growth of canola hybrids resistant and sensitive to herbicides

open access: yesSemina: Ciências Agrárias, 2020
Plant growth analysis is useful for determining adequate management practices and exploring the maximum yield potential of cultivars or hybrids. Canola hybrids with resistance to herbicides have been studied and registered for Brazilian conditions, as ...
Miria Rosa Durigon   +5 more
doaj   +1 more source

Crescimento de crambe na presença ou ausência de competição interespecífica

open access: yesRevista Ceres, 2015
RESUMOCrambe (Crambe abyssinica) has a cropping cycle of around 90 days, being suitable as an alternative to the second grain crop planted after soybean is harvested in the Center West region of Brazil.
Germani Concenço   +4 more
doaj   +1 more source

Formation of the leaf surface area of spring wheat in various cultivation technologies

open access: yesBIO Web of Conferences, 2021
The article analyzes the research on the formation of the leaf surface area of spring wheat of Darya variety in different cultivation technologies on the chernozem soil of Kursk Region.
Deriglazova Galina, Gavrilova Tatiana
doaj   +1 more source

The effect of covering and mulching on the soil temperature, growth and yield of tomato

open access: yesFolia Horticulturae, 2014
By improving the thermal and moisture conditions in the immediate vicinity of plants, plastic covers influenced the growth and development and increased the yield of vegetables.
Kosterna Edyta
doaj   +1 more source

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