Simulation of Plant Growth Process

2010 ◽  
pp. 175-182
Keyword(s):  
Plant Growth ◽  
Growth Process

Tip Growing Actuator with the Hose-Like Structure Aiming for Inspection on Narrow Terrain

2011 ◽  
Vol 5 (4) ◽  
pp. 516-522 ◽  
Author(s):  
Hideyuki Tsukagoshi ◽  
◽  
Nobuyuki Arai ◽  
Ichiro Kiryu ◽  
Ato Kitagawa
Keyword(s):  
Plant Growth ◽  
Growth Process ◽  
Maximum Speed ◽  
Flexible Hose ◽  
Head Unit ◽  
Flat Tubes ◽  
Outer Environment ◽  
The Way

This paper proposes a flexible hose-like fluid actuator to inspect narrow curved or bumpy terrain. The tip alone moves forward and the rest remains stationary, enabling the actuator to move smoothly without interfering with the outer environment – a concept based on the plant growth process. The actuator consists of multiple flexible flat tubes bent in the skin, whose bending point is involved in preventing fluid from passing through. The actuator can also steer the direction in which the tip lengthens, while the shape of the rest remains unchanged. Our Grow-hose-I prototype is 62 mm in diameter and grows at a maximum speed of 500 mm/s while producing a 45 N drive. The way of carrying a head unit equipped with a camera is discussed and feasibility of the actuator’s inspection on narrow terrain is demonstrated.

Éléments pour une approche morphométrique de la croissance végétale et de la floraison : le cas d'espèces tropicales du modèle de Leeuwenberg

1991 ◽  
Vol 69 (10) ◽  
pp. 2095-2112 ◽  
Author(s):  
P. E. Lauri ◽  
E. Terouanne
Keyword(s):  
Plant Growth ◽  
Differential Evolution ◽  
Growth Process ◽  
Apical Meristem ◽  
Leaf Surface ◽  
Ricinus Communis ◽  
Quantitative Description ◽  
Tropical Plants ◽  
The Relationship ◽  
Surface Length

A quantitative description of primary growth from the apical meristem activity is proposed for four tropical plants: Alstonia vieillardii var. vieillardii (Apocynaceae), Miconia ciliata (Melastomaceae), Ricinus communis (Euphorbiaceae), and Solanum rugosum (Solanaceae). The development of these four plants corresponds to Leeuwenberg's model. Three parameters were measured at different stages of plant growth: leaf surface, length of the underlying internode, and the surface of the internode section. Two other parameters were derived from these three: parameter T, which summarizes the first three parameters and corresponds to the overall dimension of the leaf–internode system, and parameter D, showing the differential evolution of the leaf surface and the corresponding axial volume. The higher the D value, the higher the predominance shown by the twig over the leaf component. This phenomenon is named axialization. The reciprocal situation is called foliarization. For parameter T, the observed variations are present in all four species and showed an increase followed by a decrease in dimensions during the growth process. From the evolution of parameter D, two processses can be recognized. In A. vieillardii var. vieillardii and Solanum rugosum, the amplitude of variation is wide and can be compared with that of parameter T. In M. ciliata and R. communis, the amplitude of variation is significantly reduced. A link can be established between this morphometric evolution and flowering. The results obtained for these four species are compared with those obtained by other researchers and bring new elements to the study of the relationship between the vegetative evolution of the plant and its flowering. Key words: architecture, morphometry, Leeuwenberg's model, ontogeny. [Journal translation]

A Breeding Greenhouse Based on the Intelligent Control System

2012 ◽  
Vol 562-564 ◽  
pp. 1673-1677
Author(s):  
Shou Yu Zhang ◽  
Jian Lin ◽  
Guo Chang Ding ◽  
Xiang Zhang
Keyword(s):  
Carbon Dioxide ◽  
Control System ◽  
Plant Growth ◽  
Real Time ◽  
Intelligent Control ◽  
Process Design ◽  
Growth Process ◽  
Environmental Parameters ◽  
Intelligent Control System ◽  
Plant Seedlings

In order to control the greenhouse system of temperature, humidity, the concentration of carbon dioxide and some other environmental parameters during the plant seedlings process, design a greenhouse real-time monitoring system by using a PLC module, this system can realize the function of controling the various environmental parameters during he plant seedlings process to achieve the best environment plant growth process requirements.

Application of Intelligent Expert System on Growth Model of Plant

2013 ◽  
Vol 456 ◽  
pp. 587-590
Author(s):  
Wen Qing Zhang ◽  
Yuan Li ◽  
Xu Guang Liu ◽  
Xu Ning Liu
Keyword(s):  
Expert System ◽  
Plant Growth ◽  
Growth Model ◽  
Growth Process ◽  
Intelligent System ◽  
Model Simulation ◽  
Ecological Factors ◽  
Management Level ◽  
Integration Mechanism ◽  
Plant Growth Model

In order to simulate growth process of plant, and visually display the growth development of plant under different physiological and ecological factors, the growth model is investigated from the perspective of intelligent expert system. The paper analyzes the structure mechanism of plant growth, introduces the construction process of plant growth model, presents the research of expert system, then discusses the integration mechanism of plant growth model and agricultural intelligent system, proposes the combination frame of the physiological and ecological models of plant, contributing to decision-making of expert system and visually showing the growth process of plant. The practice indicates that the system greatly improves the accuracy and reliability of the model simulation of plant growth and has great significance in improving the management level of plant growth.

scholarly journals Aux/IAA and ARF Gene Families in Salix suchowensis: Identification, Evolution, and Dynamic Transcriptome Profiling During the Plant Growth Process

2021 ◽  
Vol 12 ◽  
Author(s):  
Suyun Wei ◽  
Yingnan Chen ◽  
Jing Hou ◽  
Yonghua Yang ◽  
Tongming Yin
Keyword(s):  
Plant Growth ◽  
Growth Process ◽  
Transcriptome Profiling ◽  
Gene Families ◽  
Auxin Signaling ◽  
Vascular Differentiation ◽  
Auxin Signaling Pathway ◽  
Functional Involvement ◽  
Functional Features ◽  
Gene Structures

The phytohormone auxin plays a pivotal role in the regulation of plant growth and development, including vascular differentiation and tree growth. The auxin/indole-3-acetic acid (Aux/IAA) and auxin response transcription factor (ARF) genes are key components of plant auxin signaling. To gain more insight into the regulation and functional features of Aux/IAA and ARF genes during these processes, we identified 38 AUX/IAA and 34 ARF genes in the genome of Salix suchowensis and characterized their gene structures, conserved domains, and encoded amino acid compositions. Phylogenetic analysis of some typical land plants showed that the Aux/IAA and ARF genes of Salicaceae originated from a common ancestor and were significantly amplified by the ancestral eudicot hexaploidization event and the “salicoid” duplication that occurred before the divergence of poplar and willow. By analyzing dynamic transcriptome profiling data, some Aux/IAA and ARF genes were found to be involved in the regulation of plant growth, especially in the initial plant growth process. Additionally, we found that the expression of several miR160/miR167-ARFs was in agreement with canonical miRNA–ARF interactions, suggesting that miRNAs were possibly involved in the regulation of the auxin signaling pathway and the plant growth process. In summary, this study comprehensively analyzed the sequence features, origin, and expansion of Aux/IAA and ARF genes, and the results provide useful information for further studies on the functional involvement of auxin signaling genes in the plant growth process.

scholarly journals Phenotypic Analysis of Germination Time of Individual Seeds Affected by Microenvironment and Management Factors for Cohort Research in Plant Factory

Agronomy ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1680
Author(s):  
Eri Hayashi ◽  
Yumiko Amagai ◽  
Toru Maruo ◽  
Toyoki Kozai
Keyword(s):  
Plant Growth ◽  
Growth Process ◽  
Germination Percentage ◽  
Plant Phenotyping ◽  
Phenotypic Analysis ◽  
Germination Time ◽  
Commercial Cultivation ◽  
Whole Plant ◽  
Plant Factory ◽  
Management Factors

Plant phenotyping plays a crucial role in understanding variations in the phenotype of individual plants affected by environment, management, and genotype. Measurement of seed germination is an important phenotyping stage as germination impacts on the whole plant growth process. However, germination measurement has been limited to germination percentage of a seed population. Understanding of the germination time, from sowing to outbreak of the radicle from seed coat, at a single seed level is essential. How individual germination time and further plant growth are affected by its microenvironment and management factors remains elusive. Plant phenotype measurement system was developed to assess individual germination time of romaine lettuce (Lactuca sativa L. var. longifolia), using time-series two-dimensional camera images, and to analyze how microenvironment (volumetric water percent in seed tray, individual seed surface temperature and air temperature) and management factors (coated/uncoated seeds) affect the germination time for plant cohort research, emphasizing practicality in commercial cultivation. Germination experiments were conducted to demonstrate the performance of the system and its applicability for a whole plant growth process in a plant factory for commercial production and/or breeding. The developed phenotyping platform revealed the effects of microenvironment and management factors on germination time of individual seeds.

scholarly journals Possibilities of Increasing the Antioxidant Properties of Garlic Plants (Allium sativum, L.)

2017 ◽  
Vol 25 (2) ◽  
pp. 208-231
Author(s):  
Anastasia A. Ştefîrţă ◽  
Vasile F. Botnari ◽  
Lilia M. Brânză ◽  
Ion I. Bulhac ◽  
Eduard B. Coropceanu ◽  
...  
Keyword(s):  
Plant Growth ◽  
Growth Process ◽  
Allium Sativum ◽  
Antioxidant Properties ◽  
Chemical Formula ◽  
Peroxide Oxidation ◽  
Cell Protection ◽  
X Ray ◽  
Foliar Treatment ◽  
Pre Treatment

Abstract The effect of some selenium-containing compounds on the antioxidant properties of Allium sativum L. plants is shown in the present work. Pre-treatment of bulbs before planting and foliar treatment during plant growth with gibberellin solution (125 mg · L−1); potassium selenate (36 μg Se·L−1) and a new cobalt(III) coordinative compound (33 μg Se·L−1) resulted in the increase of the concentration of proline and assimilating pigments, reduced peroxide oxidation of lipids, enhanced antioxidant cell protection. The greatest effect was observed in plants pre-treated with the new coordinative compound, “Fludisec”, manifested by an increase of antioxidant properties of leaves and bulbs, optimization of growth process and productivity. X-ray analysis of monocrystal demonstrated that Fludisec is a coordination compound of ionic type tetrafluoroborate-[bis(dimethylglyoximato)-(selenocarbamide)1.4-(selenium-seleno-carbamide)0.5-(selenium-selenium)0.1cobalt(III)] with chemical formula [Co(DmgH)2(Seu)1,4(Se-Seu)0.5(Se-Se)0.1][BF4].

scholarly journals Warm temperature triggers JOX and ST2A-mediated jasmonate catabolism to promote plant growth

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Tingting Zhu ◽  
Cornelia Herrfurth ◽  
Mingming Xin ◽  
Tatyana Savchenko ◽  
Ivo Feussner ◽  
...  
Keyword(s):  
Food Security ◽  
Plant Growth ◽  
Growth Process ◽  
Cooling Capacity ◽  
Elongation Growth ◽  
Warm Temperature ◽  
Changing Climate ◽  
Jaz Proteins ◽  
Promote Plant Growth

AbstractPlants respond to warm temperature by increased elongation growth of organs to enhance cooling capacity. Phytohormones, such as auxin and brassinosteroids, regulate this growth process. However, our view on the players involved in warm temperature-mediated growth remains fragmentary. Here, we show that warm temperature leads to an increased expression of JOXs and ST2A, genes controlling jasmonate catabolism. This leads to an elevated 12HSO4-JA level and consequently to a reduced level of bioactive jasmonates. Ultimately this results in more JAZ proteins, which facilitates plant growth under warm temperature conditions. Taken together, understanding the conserved role of jasmonate signalling during thermomorphogenesis contributes to ensuring food security under a changing climate.

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