Humic acid application improves soil quality and wheat yield in saline-alkali soils. [PDF]
Front Plant SciZhang K +7 more
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Niche breadth and niche overlap of typical plant communities in the plateau temperate semi-arid river valley climatic region of the Qinghai-Xizang plateau. [PDF]
Front Plant SciFu B, Yang W, Yang J, Luo D, Qu X.
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Explainable machine learning to predict root biomass of field crops using UAV multispectral data. [PDF]
Front Plant SciShan R +5 more
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Measuring and modelling plant area index in beech stands
International Journal of Biometeorology, 2004For some beech ( Fagus sylvatica L.) stands with different stand densities the plant area index (PAI) was measured by means of a Licor LAI-2000 plant canopy analyser. The stands are located on the slopes of a valley in south-west Germany and had been treated by different types of silvicultural management (heavy shelterwood felling, light shelterwood ...
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Indirect Estimation of Leaf Area Index in VSP-Trained Grapevines Using Plant Area Index
American Journal of Enology and Viticulture, 2013Leaf area index (LAI) and canopy structure are important parameters affecting grape quality and yield of grapevines. Two different experimental protocols as well as the average LAI value of the different protocols for indirect estimation of LAI by gap fraction analysis in VSP-trained grapevines (Vitis vinifera L. cv. Riesling) were tested in this study
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DETERMINATION OF THE PLANT AREA INDEX OF OLIVE TREES BY HEMISPHERICAL PHOTOGRAPHY
Acta Horticulturae, 1999Destructive measurements of leaf area index (LAT) were compared with values of plant area index (PAI) obtained by hemispherical photography in an unevenly-aged olive orchard in Southern Tuscany, Italy. The measured LAI destructively increased from 0.8 in one-year old plants to 2.8 in 10-year-old trees.
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Measuring leaf area index of plant canopies with branch architecture
Agricultural and Forest Meteorology, 1991Radiation transmission through plant canopies is shown to be determined not only by the geometry of the foliage elements (leaves), but also by the geometry of foliage clumps. When the geometry of tree branches (thin slabs of foliage in which leaves are confined) was considered with a Poisson model, it was found that beam transmission measurements at a ...
J.M. Chen, T.A. Black
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Image analysis estimation of leaf area index and plant size of young hazelnut plants
Journal of Horticultural Science, 1996SummaryA nondestructive method of leaf area estimation was evaluated on two year old hazelnut plants cv. Tonda Gentile Romana grown in the field. Black and white photographs of 22 plants were taken from two directions at 90° and processed by means of a Vidas image analyzer (Kontron Elektronic) to obtain an estimation of leaf area.
BIGNAMI, Cristina, ROSSINI F.
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Dosage of plant protection products adapted to leaf area index in viticulture
Crop Protection, 2007Abstract The efficacy of plant protection products depends on many factors. Among them, the dose of active ingredient, the size of deposits, the number of deposits and the dose per deposit on the leaf surface are very important elements for successful control of diseases.
W. Siegfried +3 more
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Inversion of leaf area index for invasive plant using ENVISAT ASAR
2009 Joint Urban Remote Sensing Event, 2009In this paper, leaf area index LAI retrieval of invasive plant species from C-band synthetic aperture radar (SAR) data was demonstrated to be feasible via experiment. Taking an invasive plant of spartina alterniflora in Dongtan of Chongming island, Shanghai, China as example, a specific method that inversion LAI of invasive plant from the ENVISAT dual ...
Ting Xiao, Wen-peng Lin, Neng Chen
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