scholarly journals Agronomic characteristics and radicular diagnosis of tropical poaceae cultivars by image processing

2020 ◽  
Vol 16 (5) ◽  
pp. 14-22
Author(s):  
Anderson Samuel Silva ◽  
João Paulo de Farias Ramos ◽  
Edson Mauro Santos ◽  
Rubens Fernandes Costa ◽  
Valdemir Ribeiro Cavalcante ◽  
...  
Keyword(s):  
Image Processing ◽  
Root System ◽  
Aerial Part ◽  
Forage Yield ◽  
Biomass Composition ◽  
Water Efficiency ◽  
Rainfed Agriculture ◽  
Experimental Station ◽  
The One ◽  
System Volume

This study aimed to analyze and compare the agronomiccharacteristics and development of the root system through digital image processing of different cultivars of tropical grasses of Brachiaria and Panicum genera. The experiment was carried out at an experimental station of the Research, Rural extension and land regularization company of Paraiba –EMPAER in Alagoinha -PB, in a rainfed agriculture system. Through June 2019 to 45 days after sowing, the grasses were cut for aerial part evaluation (biomass composition, forage yield, root system (volume and surface area) of the cultivars Mombaça, Tamani, Zuri, Massai, Piatã and Ipyporã. Occurred difference between cultivars for all variables analyzed, except for the leaf-stem ratio. The cv. Mombaça presented the best agronomic and root results, being the one that best adapted the edaphoclimatic conditions of the region. On the other hand, Ipyporã was the least expressive for forage yield and water efficiency. Through root image processing, a diagnosis is possible that reflects the forage yield of the genera Brachiariasp. and Panicumsp.

scholarly journals Production of kale seedlings on substrates containing proportions of organic compost

2021 ◽  
Vol 10 (8) ◽  
pp. e58010817707
Author(s):  
José Luís Trevizan Chiomento ◽  
Isabel Cristina Lourenço da Silva ◽  
Lourival Dantas Fagundes ◽  
Rafael Tronco Homrich ◽  
Nicolas dos Santos Trentin ◽  
...  
Keyword(s):  
Root System ◽  
Aerial Part ◽  
Water Retention ◽  
Chemical Characterization ◽  
Water Retention Capacity ◽  
Retention Capacity ◽  
The One ◽  
Physical And Chemical ◽  
Organic Compost

One of the difficulties in the kale seedlings production in containers is to ensure the production of aboveground biomass with a limited portion of roots, restricted to a small volume of substrate. Thus, we investigated whether substrates with organic compost added to it associated with kale cultivars interfere in the quality of seedlings produced in a greenhouse. Here, we studied two kale cultivars and five substrates. The experiment was designed in randomized blocks, with treatments arranged in a bifactorial scheme (2 x 5), with three replications. We carried out the physical and chemical characterization of the substrates and evaluated attributes of the aerial part and root system of the kale seedlings. The results showed that the substrate with the highest water retention was the one without the addition of organic compost. The greater the proportion of organic compound added to the substrate, the higher the nitrogen, phosphorus and organic carbon values. Seedlings produced in the substrate with greater water retention capacity had better performance in relation to the morphology of the aerial part and the morphology of the root system. We conclude that seedlings of kale cultivars associated with substrates with higher water retention have better quality. Seedlings of the ‘Gaudina’ cultivar stand out for their better phytometric morphology, while seedlings of the ‘Manteiga’ cultivar have higher quality of root biomass.

scholarly journals Low-Density Insulation Blocks and Hardboards from Amaranth (Amaranthus cruentus) Stems, a New Perspective for Building Applications

Coatings ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 349
Author(s):  
Philippe Evon ◽  
Guyonne de Langalerie ◽  
Laurent Labonne ◽  
Othmane Merah ◽  
Thierry Talou ◽  
...  
Keyword(s):  
Aerial Part ◽  
Low Density ◽  
Renewable Materials ◽  
Fractionation Process ◽  
Amaranthus Cruentus ◽  
Cosmetic Industry ◽  
New Perspective ◽  
The One ◽  
Promising Source ◽  
Amaranth Oil

Nowadays, amaranth appears as a promising source of squalene of vegetable origin. Amaranth oil is indeed one of the most concentrated vegetable oils in squalene, i.e., up to 6% (w/w). This triterpene is highly appreciated in cosmetology, especially for the formulation of moisturizing creams. It is almost exclusively extracted from the liver of sharks, causing their overfishing. Thus, providing a squalene of renewable origin is a major challenge for the cosmetic industry. The amaranth plant has thus experienced renewed interest in recent years. In addition to the seeds, a stem is also produced during cultivation. Representing up to 80% (w/w) of the plant aerial part, it is composed of a ligneous fraction, the bark, on its periphery, and a pith in its middle. In this study, a fractionation process was developed to separate bark and pith. These two fractions were then used to produce renewable materials for building applications. On the one hand, the bark was used to produce hardboards, with the deoiled seeds acting as natural binder. Such boards are a viable alternative to commercial wood-based panels. On the other hand, the pith was transformed into cohesive and machinable low-density insulation blocks revealing a low thermal conductivity value.

Preparation of Bio Tissue Micro Array Based on NC Positioning and Image Processing Technology

2011 ◽  
Vol 299-300 ◽  
pp. 1128-1131
Author(s):  
Yu Cheng Zhang
Keyword(s):  
Image Processing ◽  
Processing System ◽  
Poor Quality ◽  
Processing Technology ◽  
Tissue Micro Array ◽  
Image Identification ◽  
Micro Hole ◽  
Micro Array ◽  
Accurate Position ◽  
The One

Against the problem on poor quality and inefficiency in the preparation of bio tissue micro array by hand, the one processing system of biotissue micro-array was developed. The application of NC image identification technology was made to carry out auto punching, auto-positioning- embedding, and auto-extracting, etc. The auto preparation of biotissue micro array was completed. The adoption of the minimum squares fitting was aimed at object’s primes to be fitted so as to obtain special-feature parameters to finish accurate position and auto rectification of deviation visual view range in micro-hole image. There by, visual deviation operated by hand was avoided and highlighted the processed accuracy.

scholarly journals SPATIAL DISTRIBUTION OF PHYSIOLOGICAL QUALITY OF Joannesia princeps Vell. SEEDS1

2018 ◽  
Vol 41 (4) ◽  
Author(s):  
Rômulo André Beltrame ◽  
José Carlos Lopes ◽  
Julião Soares de Souza Lima ◽  
Vagner Mauri Quinto
Keyword(s):  
Spatial Distribution ◽  
Root System ◽  
Spatial Dependence ◽  
Aerial Part ◽  
Dry Mass ◽  
Fresh Mass ◽  
Plastic Bags ◽  
Mother Plants ◽  
Physiological Quality

ABSTRACT The objective of this study was to analyze the spatial distribution of the attributes that determine the physiological quality of Joannesia princeps seeds. Seeds were collected, individually from, 40 mother plants in the Horto Florestal Municipal Laerth Paiva Gama, in Alegre-ES, which constituted the georeferenced sampling mesh. For germination, the seeds tegument was cracked and was held the imbibition in gibberellic acid GA3 500 mg L-1 for 24 h in environmental chamber with temperature adjusted to 30 ºC. The seeds were sown in plastic bags of ± 600 cm3 containing soil+sand+manure in the proportion of 1:1:1. On the 65th day after sowing, the following variables were analised: emergence (E), emergence speed index (IVE), root length (CR), diameter of base (DC), shoot length of the aerial part (CPA), fresh mass of the root system (MFSR), fresh mass of the aerial part (MFPA), dry mass of the root system (MSSR) and dry mass of the aerial part (MSPA). Data were subjected to descriptive statistics, geostatistics and kriging. With the exception of CPA and MFSR, it was found spatial dependence for the other studied variables: E, IVE, CR, DC, MFPA, MSSR e MSPA; varying of 14,0 a 47,5 m, so that the lowest range for the CR and longer range and degree of spatial dependence for the IVE. The analysis of the spatial distribution of the physiological quality of seeds of J. princeps can be used as a tool to define the sampling region of seeds with high and low vigor.

scholarly journals Robotic grasp detection based on image processing and random forest

2019 ◽  
Vol 79 (3-4) ◽  
pp. 2427-2446 ◽  
Author(s):  
Jiahao Zhang ◽  
Miao Li ◽  
Ying Feng ◽  
Chenguang Yang
Keyword(s):  
Image Processing ◽  
Random Forest ◽  
Main Idea ◽  
Morphological Image Processing ◽  
Segmentation Approach ◽  
Novel Objects ◽  
Set Up ◽  
The One ◽  
Objects Detection ◽  
Morphological Image

AbstractReal-time grasp detection plays a key role in manipulation, and it is also a complex task, especially for detecting how to grasp novel objects. This paper proposes a very quick and accurate approach to detect robotic grasps. The main idea is to perform grasping of novel objects in a typical RGB-D scene view. Our goal is not to find the best grasp for every object but to obtain the local optimal grasps in candidate grasp rectangles. There are three main contributions to our detection work. Firstly, an improved graph segmentation approach is used to do objects detection and it can separate objects from the background directly and fast. Secondly, we develop a morphological image processing method to generate candidate grasp rectangles set which avoids us to search grasp rectangles globally. Finally, we train a random forest model to predict grasps and achieve an accuracy of 94.26%. The model is mainly used to score every element in our candidate grasps set and the one gets the highest score will be converted to the final grasp configuration for robots. For real-world experiments, we set up our system on a tabletop scene with multiple objects and when implementing robotic grasps, we control Baxter robot with a different inverse kinematics strategy rather than the built-in one.

scholarly journals Construction of generalized rotations and quasi-orthogonal matrices

2019 ◽  
Vol 7 (1) ◽  
pp. 107-113
Author(s):  
Luis Verde-Star
Keyword(s):  
Image Processing ◽  
Hadamard Matrices ◽  
Complex Numbers ◽  
Data Communications ◽  
Matrix Representations ◽  
Orthogonal Matrices ◽  
Orthogonal Designs ◽  
The Matrix ◽  
The One

Abstract We propose some methods for the construction of large quasi-orthogonal matrices and generalized rotations that may be used in applications in data communications and image processing. We use certain combinations of constructions by blocks similar to the one used by Sylvester to build Hadamard matrices. The orthogonal designs related with the matrix representations of the complex numbers, the quaternions, and the octonions are used in our construction procedures.

scholarly journals Digital Palimpsests: Mark in Trinity College Cambridge MS. O.9.27

Open Theology ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 107-115 ◽  
Author(s):  
Dan Batovici
Keyword(s):  
Image Processing ◽  
New Testament ◽  
Trinity College ◽  
Processing Software ◽  
Image Processing Software ◽  
The One ◽  
Phd Thesis

Abstract The O.9.27 manuscript of Trinity College Cambridge is a minuscule manuscript of Hesiod’s Opera et Dies. In a 2001 PhD thesis on Greek palimpsests in Cambridge by Natalie Tchernetska, this manuscript is described to contain two distinct lower scripts, one of which identified as a New Testament text. The author read four lines and a partial fifth of the one-leaf palimpsest that contain Mark 1:44, which is remarkable considering that the washing made the lower script virtually the same colour as the page. This note re-examines the Markan lower script in O.9.27 and offers an account of the use of image processing software for the purpose to uncover more text in a difficult palimpsest, a method useful when MSI is not available.

scholarly journals DIGITAL IMAGE PROCESSING FOR EVALUATION OF PASPALUM MILLEGRANA SCHRAD ROOT SYSTEM1

2020 ◽  
Vol 33 (1) ◽  
pp. 100-107
Author(s):  
AIRTON MARQUES DE CARVALHO ◽  
LUIZ DIEGO VIDAL SANTOS ◽  
FRANCISCO SANDRO RODRIGUES HOLANDA ◽  
ALCEU PEDROTTI ◽  
GUILHERME MATOS ANTONIO
Keyword(s):  
Image Processing ◽  
Root System ◽  
Soil Depth ◽  
Plant Root ◽  
Quantitative Information ◽  
Erosion Processes ◽  
Grass Root ◽  
Ring Method ◽  
Plant Root System ◽  
Wall Method

ABSTRACT The characterization of the plant root system is of great importance for the understanding of its contribution to soil shear resistance, constituting an important tool for decision making in soil bioengineering works. The objective of this work was to evaluate the growth and distribution characteristics of the root system of Paspalum millegrana Schrad. grass in Entisol using Digital Imaging Processing (DIP). The data were obtained by opening a soil pit to expose the root system of Paspalum grass up to 1.70 m depth. The profile wall and volumetric ring methods were used to collect quantitative information of the root system. The SAFIRA software and the ArcMAP software belonging to the ArcGIS suite were used for image processing. The profile wall method showed that Paspalum grass has a large volume of roots in the first 0.40 m to 1.30 m soil depth. It was observed that the root length and volume of Paspalum grass reach depths beyond 1.70 m, which is important to increase soil resistance to erosion processes. The profile wall method when compared to the volumetric ring method proved to be more efficient to understand the behavior of the Paspalum grass root system since it enables an assessment of its spatial distribution with better detailing.

scholarly journals Apport Des Images ETM+ Et Du Modèle Numérique De Terrain (MNT) A La Cartographie Des Fractures En Région Montagneuse : Secteur De Timia (Massif De l’Aïr, Nord Du Niger)

2018 ◽  
Vol 14 (9) ◽  
pp. 103 ◽  
Author(s):  
Illias Alhassane ◽  
Abdou Babaye Maman Sani ◽  
Sandao Issoufou ◽  
Saley Mahaman Bachir ◽  
Ousmane Boureima
Keyword(s):  
Image Processing ◽  
Methodological Approach ◽  
Linear Mapping ◽  
The Other ◽  
Fractured Aquifer ◽  
Directional Filtering ◽  
Digital Terrain ◽  
Terrain Models ◽  
The One ◽  
Modèle Numérique De Terrain

Timia is located at the Aïr massifs region. This locality, which is the substratum that constituted the basement formations, has some difficulty of water supply. This present study focuses on fractures mapping to acquire the best knowledge of the fractured aquifer in Timia zone. The methodological approach is based on landsat7 image processing and DEM, especially directional filtering and shaded digital terrain models. These diverse processing has shown complementarity between the satellites images and DEM in linear mapping on the one hand and in establishing a lineaments map on the other hand. The lineament map showed that the fractures network is distributed in the following directions: N0°-N10°, N140°-N170°, N 70°- N100°, and N30°-N50°. These fractures map, which was allowed to increase the density of faults from the previous studies, were used to actualize hydrogeological knowledge and in determining the favorable sites for drilling boreholes in Timia locality.

scholarly journals Germination and Agronomic Traits of Phaseolus vulgaris L. Beans Sprayed with Trichoderma Strains and Attacked by Acanthoscelides obtectus

Agronomy ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2130
Author(s):  
Álvaro Rodríguez-González ◽  
Marcos Guerra ◽  
Daniela Ramírez-Lozano ◽  
Pedro Antonio Casquero ◽  
Santiago Gutiérrez
Keyword(s):  
Phaseolus Vulgaris ◽  
Root System ◽  
Type Strain ◽  
Aerial Part ◽  
Wild Type Strain ◽  
Agronomic Traits ◽  
Wild Type ◽  
Phaseolus Vulgaris L ◽  
Acanthoscelides Obtectus ◽  
Wet Weight

Acanthoscelides obtectus, one of the world’s most important post-harvest pests, attacks wild and cultivated common beans (Phaseolus vulgaris L.). Four Trichoderma strains, Trichoderma arundinaceum IBT 40837 (=Ta37), a wild-type strain producer of trichothecene harzianum A (HA); two transformed strains of Ta37, Ta37-17.139 (Δtri17) and Ta37-23.74 (Δtri23); and T. brevicompactum IBT 40841 (=Tb41), a wild-type strain producer of the trichothecene trichodermin, were evaluated to determine the effect of these compounds on the virulence of A. obtectus and the effect of these strains on the seed’s capacity of germination and on the agronomic traits of the plants grown from these seeds. Treatments of bean seeds with different Trichoderma strains provided varying survival rates in A. obtectus adults, so life survival of insects after Tb41 strain application was reduced to 15 days. Δtri17 and Tb41 strains sprayed on P. vulgaris beans resulted in low weight losses (1.21 and 1.55%, respectively). In spite of the low germination percentage of beans treated with Δtri23 strain (lower than the germination percentages of the rest of the fungal strains applied), this treatment encouraged a greater Wet Weight of Aerial Part of the plants grown from both damaged and undamaged beans. High germination rates of Ta37 and Δtri17 strains (higher than with the rest of treatments), did not turn into a greater Wet Weight Aerial Part and Wet Weight of Root System in the future plants developed. Linear regression between the number of exit holes and the wet weight aerial part on the one hand, and between the number of exit holes and the wet weight root system on the other, showed interaction, so Δtri23 and Tb41 strains behaved differently in comparison to their respective control treatments. The number of exit holes of beans treated with Δtri23 or Tb41 was negatively correlated with both the wet weight aerial part and the wet weight root system in P. vulgaris plants. Δtri23 sprayed on undamaged beans caused the greatest Wet Weight Aerial Part and wet weight root system in plants. Due to the good results obtained by Δtri23 and Tb41 strains in this work, more studies for A. obtectus control, P. vulgaris plant growth and trichothecenes production by these strains should be explored, in order to advance in the knowledge of how these fungi could be used in the field crop, together with the application of management strategies to mitigate risks for farmers and to minimize environmental contamination.

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