scholarly journals Impact and Assessment of Engineered Metallic Nano-oxide on the Growth and Development of Gossypium hirsutum L.

2021 ◽  
Author(s):  
Gaurav Sharma ◽  
Anupriya Rana ◽  
Asha Sharma
Keyword(s):  
Gossypium Hirsutum ◽  
Copper Oxide ◽  
Titanium Oxide ◽  
Growth And Development ◽  
Morphological Characters ◽  
Growth Patterns ◽  
Titanium Oxides ◽  
Zinc Oxides ◽  
Nano Oxide ◽  
Positive Growth

Background: Metallic nano-oxide has been influenced the environment in the past two decades. Their consequences are dreadfully uncertain. The increased graph of their interference suggested many extensive studies in various fields of the environment. The Gossypium hirsutum one of the prime harvest plants in India has been chosen for studying the impacts of metallic nano-oxide on their morphological characters as well as their fresh shoot and root weights. Methods: Study has been done in July 2020 as a randomized triplet. The need for the study was fulfilled by the four different metallic nano-oxides with their five specific concentrations. The metallic nano-oxides were titanium oxide, silver oxide, copper oxide and zinc oxide. The five concentrations 00 ppm, 40 ppm, 60 ppm, 80 ppm and 100 ppm were taken from each one of metallic nano-oxide. Result: The zinc oxides treatment gave noteworthy positive growth and development in Gossypium hirsutum from germination to the blossoming time. Conversely, the concentrations of silver oxides were found little toxic for the growth of species. The copper and titanium oxides indicated little diversity in their growth patterns. The germination studies calculated best with titanium oxide treatment. The 80ppm concentration of copper oxide also reported better results at germination in comparison to control.

Positive growth and development: From distress to coping across the life-span

2010 ◽  
Author(s):  
Erica Frydenberg ◽  
Krys Kaniasty ◽  
Erica Frydenberg ◽  
Barbara Jones ◽  
Esther Greenglass ◽  
...  
Keyword(s):  
Life Span ◽  
Growth And Development ◽  
Positive Growth

Reduction in the Thermal Conductivity of Thermoelectric Titanium Oxide by Introduction of Planar Defects

2009 ◽  
Vol 1218 ◽  
Author(s):  
Shunta Harada ◽  
Katsushi Tanaka ◽  
Haruyuki Inui
Keyword(s):  
Thermal Conductivity ◽  
Titanium Oxide ◽  
Hot Pressing ◽  
Oxygen Deficiency ◽  
Nominal Composition ◽  
Titanium Oxides ◽  
X Ray Diffraction ◽  
Planar Defects ◽  
Magnéli Phase ◽  
Magneli Phase

AbstractThermoelectric properties of a homologous series of Magnéli phase titanium oxides TinO2n-1 (n = 2, 3..) have been investigated. Dense polycrystalline specimens with nominal composition of TiO2-x (x = 0.10, 0.20) have been prepared by conventional hot-pressing. X-ray diffraction analysis has revealed that prepared specimens are slightly reduced during hot-pressing. Electrical conduction is of n-type for all prepared titanium oxides and electrical resistivity and absolute values of Seebeck coefficient decrease with increasing oxygen deficiency. The carrier concentration of Magnéli phase titanium oxide increases with increasing oxygen deficiency. Lattice thermal conductivity decreases with increasing oxygen deficiency by more than 60% at room temperature and 40% at 773K compared to TiO2, which can be due to the presence of dense planar defects. The largest thermoelectric figure of merit Z, 1.6×10-4 K-1 at 773K, was obtained in TiO1.90 hot pressed specimen.

scholarly journals The effect of the photoperiod on the level of endogenous growth regulators in pine (Pinus silvestris L.) seedlings

2014 ◽  
Vol 51 (1) ◽  
pp. 59-70 ◽  
Author(s):  
Krystyna Kriesel ◽  
Sławomir Ciesielska
Keyword(s):  
Abscisic Acid ◽  
Growth And Development ◽  
Morphological Characters ◽  
Axillary Buds ◽  
Pinus Silvestris ◽  
Low Intensity ◽  
Pine Seedlings ◽  
Terminal Bud ◽  
Development Processes ◽  
High Level

The investigations were performed on pine seedlings growing under 12, 16 and 20 hour photoperiods. In 4 succesive stages of seedling development i.e. after 2, 12, 18 and 30 weeks of culture morphological characters of the seedlings were measured and the levels of auxins-, gibberellins-, cytokininsand abscisic acid-like inhibitor were determined. The intensity of growth and development of juvenile leaves, needles and of the shoot was the lowest in plants growing under 12 hour photoperiod conditions. As the length of the photoperiod increased so did the intensity of these processes. Under the 12 hour photoperiod the development of scale leaves, axillary buds and the formation of the terminal bud started earliest. This process reached completion under the 12 hour photoperiod and the bud remained in a state of dormancy. Seedlings growing under the 12 hour photoperiod were characterized by a low level of stimulators, and at the same time by a high level of inhibitors. On the other hand in seedlings grown at 16 and 20 hour photoperiods the content of stimulators was higher and that of inhibitors lower. A high intensity of growth and development processes was correlated with a high level of stimulators while a high level of inhibitors was correlated with a low intensity of these processes.The obtained results suggest the participation of gibberellins and cytokinins in the processes of regulation of the initiation of scale leaves and axillary buds, and the participation of these hormones and of abscisic acid in the regulation of needle elongation.

Morphological characters, inheritance and response to exogenous hormones of a cotton super-dwarf mutant of Gossypium hirsutum

2011 ◽  
Vol 130 (1) ◽  
pp. 67-72 ◽  
Author(s):  
C. Zhang ◽  
J.-L. Sun ◽  
Y.-H. Jia ◽  
J. Wang ◽  
Z.-J. Xu ◽  
...  
Keyword(s):  
Gossypium Hirsutum ◽  
Morphological Characters ◽  
Dwarf Mutant ◽  
Exogenous Hormones

Manipulation of planar oxygen defect arrangements in multifunctional magnèli titanium oxide hybrid systems: from energy conversion to water treatment

2020 ◽  
Vol 13 (12) ◽  
pp. 5080-5096
Author(s):  
Yichen Liu ◽  
Jack Yang ◽  
Yang Liu ◽  
Jian Zheng ◽  
Wen Lee ◽  
...  
Keyword(s):  
Water Treatment ◽  
Energy Harvesting ◽  
Energy Conversion ◽  
Hybrid Systems ◽  
Titanium Oxide ◽  
Titanium Oxides ◽  
Oxygen Defect

This work demonstrates that the layer structured Magnèli titanium oxides possess co-existing functionalities, which can be applied to both energy harvesting and water treatment using one material.

scholarly journals SUNFLOWER PLANT RESPONSE TO SIMULATED DRIFT OF GLYPHOSATE AND TRINEXAPAC-ETHYL

2017 ◽  
Vol 35 (0) ◽  
Author(s):  
R.G. VITAL ◽  
A. JAKELAITIS ◽  
A.C. COSTA ◽  
F.B. SILVA ◽  
P.F. BATISTA
Keyword(s):  
Leaf Area ◽  
Growth And Development ◽  
Dry Matter ◽  
Visual Analysis ◽  
High Sensitivity ◽  
Growth Patterns ◽  
Lower Growth ◽  
Number Of Leaves ◽  
Indirect Impacts ◽  
Glyphosate Drift

ABSTRACT Chemical ripeners are frequently used on sugarcane crops in order to increase profitability. However, the drift of these products to neighbouring fields can expose susceptible non-target plants, such as sunflower, to these agents causing indirect impacts on growth and development. Therefore, this study aimed to assess the toxicity characterize possible changes in the growth of sunflower plants exposed to simulated drift of the ripeners glyphosate and trinexapac-ethyl. For each ripener, the following doses were used: glyphosate (0 (control), 3.6, 7.2, 14.4, 28.8 and 86.4 g a.e ha-1) and trinexapac-ethyl (0, 3.12, 6.25, 12.50, 25 and 75 g a.i ha-1). The effects of these products on plant height, number of leaves, leaf area, stem diameter and dry matter (leaves, stem, flower, root, shoot and total) were evaluated. We also conducted a visual analysis of symptoms of phytotoxicity after exposure. The effects of the ripeners on sunflower plants varied depending on the type of agent used and the dose. Plants treated with glyphosate showed altered growth patterns, indicating high sensitivity of these plants to the herbicide. With increasing doses, glyphosate drift promoted lower growth and development of sunflower plants and negatively affected productivity. Nevertheless, trinexapac-ethyl drift, in the evaluated doses, did not affect sunflower plants.

scholarly journals Fruit Growth and Development of `Ideal' and `Western' Pecans

1990 ◽  
Vol 115 (6) ◽  
pp. 915-923 ◽  
Author(s):  
Esteban A. Herrera
Keyword(s):  
Fruit Development ◽  
Growth And Development ◽  
Growth Patterns ◽  
Ovary Wall ◽  
Seasonal Growth ◽  
Carya Illinoensis ◽  
Stigma Receptivity ◽  
Growing Seasons ◽  
Final Length ◽  
Maximum Content

Pecan [Carya illinoensis (Wangenh.) K. Koch] fruit development was evaluated over three growing seasons (1981-83) to determine the seasonal growth patterns in the cultivars Ideal and Western. Gross morphological stages were examined weekly in fruit dissected in cross and longitudinal sections. Free-nucleate endosperm was first observed in mid-July when fruit had grown to 50% of their final length, occurring at 67 days after stigma receptivity (DASR) for `Ideal' and 76 DASR for Western'. Maximum content of free-nucleate endosperm occurred 100 DASR in `Ideal' and 109 DASR in Western' fruit. Ovary wall Signification was completed 119 DASR in `Ideal' and 132 DASR in `Western'. At this time, nut enlargement was complete. Cotyledon thickening required 36 and 43 days for `Ideal' and Western', respectively. The time from stigma receptivity to completion of cotyledon thickening in mid-October was 13 days longer for Western' than for `Ideal'. Because of a cool spring in 1983, all stages required a longer time in 1983 than in the previous 2 years. Most aspects of fruit development were similar between `Ideal' and Western' over the 3-year study.

scholarly journals Jenis-Jenis Jamur Rizosfer dan Jamur Busuk Batang Karet dari Perkebunan Karet (Hevea Brasiliensis Muell Arg.) di Desa Tajok Kayong

2019 ◽  
Vol 8 (2) ◽  
Author(s):  
Sisilia Hainawati Rahmawati, Mukarlina
Keyword(s):  
Growth And Development ◽  
Morphological Characters ◽  
Stem Rot ◽  
Dilution Method ◽  
Microbiology Laboratory ◽  
Plant Growth And Development ◽  
Rubber Plantations ◽  
Rhizosphere Fungi ◽  
Aspergillus Sp ◽  
Planting Method

Rhizosphere is a fungus that plays an important role in the process of plant growth and development. This study aims to determine the morphological characters of rhizosphere fungi in rubber plants and rubber stem rot fungi. Sampling of rhizosphere fungi is carried out in rubber plantations. Tajok Kayong Village, Nanga Tayap District, Ketapang Regency. Isolation, identification was carried out at the Microbiology Laboratory, Faculty of Mathematics and Natural Sciences, Tanjungpura University, from February to June 2018. method of isolation of rhizosphere fungi using dilution method and method of isolation of rubber stem rot fungi by dilution method and direct planting method.  The isolation results showed 7 rhizosphere fungi isolates, namely members of Aspergillus sp. (JTS 5, 6, 7, 8), Mucor sp. (JTS 10), and members of the Penicillium sp. Species. (JTS 2, and  JTS 9), and rubber stem rot fungi, namely members of the species Corticium sp.

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