Results 11 to 20 of about 6,007,853 (334)

Competition models for plant stems [PDF]

open access: yesJournal of Differential Equations, 2020
The models introduced in this paper describe a uniform distribution of plant stems competing for sunlight. The shape of each stem, and the density of leaves, are designed in order to maximize the captured sunlight, subject to a cost for transporting water and nutrients from the root to all the leaves.
Alberto Bressan   +3 more
openaire   +4 more sources

Oscillation frequencies of tapered plant stems [PDF]

open access: yesAmerican Journal of Botany, 2002
Free oscillations of upright plant stems, or in technical terms, slender tapered rods with one end free, can be described by considering the equilibrium between bending moments in the form of a differential equation with appropriate boundary conditions.
Spatz, Hanns-Christof, Speck, Olga
openaire   +4 more sources

Measuring the compressive modulus of elasticity of pith-filled plant stems. [PDF]

open access: yesPlant Methods, 2017
The compressional modulus of elasticity is an important mechanical property for understanding stalk lodging, but this property is rarely available for thin-walled plant stems such as maize and sorghum because excised tissue samples from these plants are ...
Al-Zube LA   +4 more
europepmc   +2 more sources

Sparse dynamic tomography: a shearlet-based approach for iodine perfusion in plant stems [PDF]

open access: yesInverse Problems, 2020
In this paper we propose a motion-aware variational approach to reconstruct moving objects from sparse dynamic data. The motivation of this work stems from x-ray imaging of plants perfused with a liquid contrast agent, aimed at increasing the contrast of
T. Bubba   +5 more
semanticscholar   +1 more source

Correlation of microbiomes in “plant-insect-soil” ecosystem

open access: yesFrontiers in Microbiology, 2023
IntroductionTraditional chemical control methods pose a damaging effect on farmland ecology, and their long-term use has led to the development of pest resistance.MethodsHere, we analyzed the correlations and differences in the microbiome present in the ...
Guomeng Li   +15 more
doaj   +1 more source

Perbedaan Jumlah Mata Tunas per Stek dan Populasi pada Pertumbuhan dan Produksi Bibit setelah Panen Ubi Kayu

open access: yesJurnal Ilmu Pertanian Indonesia, 2023
Limitations of cuttings become an essential problem in the expansion of cassava plantations. One strategy that can be taken is to reduce the length of the cuttings and increase the plant population to increase the area planted and produce more stems per
Sutrisno Sutrisno   +4 more
doaj   +1 more source

Discovery of spatial pattern of prickles on stem of Rosa hybrida ‘Red Queen’ and mathematical model of the pattern

open access: yesScientific Reports, 2021
The developmental patterns of many organisms are orchestrated by the diffusion of factors. Here, we report a novel pattern on plant stems that appears to be controlled by inhibitor diffusion.
Kazuaki Amikura   +2 more
doaj   +1 more source

Evaluation of the potential of fireweed (Epilobium angustifolium L.), European goldenrod (Solidago virgaurea L.), and common broom (Cytisus scoparius L.) stems in bioethanol production

open access: yesEnergy Science & Engineering, 2020
One of the main goals of industrial biotechnology is to develop an effective method for ethanol production for fuel purposes using lignocellulosic biomass.
Małgorzata Smuga‐Kogut   +6 more
doaj   +1 more source

Effects of Fertilizer Source and Rate on Zinnia Cut Flower Production in a High Tunnel

open access: yesHorticulturae, 2021
Sustainable nutrient management in high tunnel production is critical for optimizing crop yield and quality and improving soil health. In this study, we investigated the influence of different pre-plant composts (composted broiler litter, vemicompost ...
Guihong Bi   +4 more
doaj   +1 more source

Utilization of Calathea Lutea Stem as Part Material [PDF]

open access: yesE3S Web of Conferences, 2023
Calathea Lutea is a plant that is often found in Indonesia. Calathea Lutea is usually only used as an exterior plant because it has a wide leaf shape and a strong stem structure. If further investigated, the strength of the stem structure of the Calathea
Lim Christina   +1 more
doaj   +1 more source

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