scholarly journals Features of the optical medium of the surface of plant seeds

2021 ◽  
pp. 47-52
Author(s):  
Stanislav Zienko ◽  
Mikhail Belyakov
Keyword(s):  
Relaxation Curve ◽  
Gain Factor ◽  
Time Characteristic ◽  
Plant Seed ◽  
Optical Medium ◽  
Seed Surface ◽  
Plant Seeds ◽  
Input And Output ◽  
Luminescence Light ◽  
Dynamic Link

It was found that the integumentary tissue of plant seeds has the property of enhancing luminescence light. This phenomenon manifests itself in both the time and frequency domain. The gain factor (in power), depending on the type of seed, varies from 1.7 (beans) to 2.6 (rye). To determine it, the optical medium of the plant seed surface was represented as a dynamic link having an input and output. The impulse (time) characteristic of the link was found by the relaxation curve of luminescence. The dependence of the gain on temperature is expressed in the fact that when it decreases from 50 oC to –30 oC, the gain increases from 1.73 to 2.48. This phenomenon can be explained by the fact that at the stage of relaxation of luminescence, the absorption coefficient of the optical medium of the seed surface takes a negative value

scholarly journals Effects of some indigenous plant seed extracts on the Haematology of a predatory fish Singhi Heteropneustes fossilis (Bloch)

2013 ◽  
Vol 6 (1-2) ◽  
pp. 11-25
Author(s):  
Munira Nasiruddin ◽  
Mohammad Ali Azadi ◽  
Monika Rahman ◽  
Israt Ara Shazia Rahman
Keyword(s):  
Blood Parameters ◽  
Acacia Auriculiformis ◽  
Predatory Fish ◽  
Heteropneustes Fossilis ◽  
Plant Seed ◽  
Alcohol Extract ◽  
Plant Seeds ◽  
Indigenous Plant ◽  
Clerodendrum Viscosum ◽  
Seed Extracts

Haemolytic effects of different extracts of five indigenous plant seeds viz. Datura innoxia (Mill) (Shada Dhutra), Clerodendrum viscosum (Vent.) (Vat), Amoora rohituka (Roxb.) Wt. ct. Arnott (Pitraj), Acacia auriculiformis A. Cunn. Ex. Benth. (Akashmoni) and Pongamia pinnata (L.) Pierre (Karinja) were studied upon a predatory fish, Singhi, Heteropneustes fossilis (Bloch) under laboratory conditions. Toxicants inducing effects on the blood parameters included decreased RBC and WBC counts, low haemoglobin percentage and decreased PCV (packed cell volume), MCV (mean corpuscular volume) and MCH (mean corpuscular haemoglobin). Haemolysis action included shrunken or swollen RBCs, granulated nuclei of RBCs and pyknotic nuclei of WBCs, clumping of RBCs and syncitium of RBC matrix. Damage of blood cells with absolute ethyl alcohol extract was most pronounced with all of the seed extracts. The order of toxicity of the five seed extracts on the blood parameters of Singhi was: D. innoxia < A. auriculaerformis < P. pinnata < C. viscosum < A. rohituka seed extracts. On the basis of haemolysis the toxicity was: A. rohituka > C. viscosum > P. pinnata > D. innoxia > A. auriculiformis seed extracts. DOI: http://dx.doi.org/10.3329/cujbs.v6i1-2.17078 The Chittagong Univ. J. B. Sci.,Vol. 6(1&2):11-25, 2011

scholarly journals Effects of some indigenous plant seed extracts on the haematology of a predatory fish singhi Heteropneustes fossilis (Bloch)

2013 ◽  
pp. 27-36
Author(s):  
Munira Nasiruddin ◽  
Mohammad Ali Azadi ◽  
Monika Rahman ◽  
Israt Ara Shazia Rahman
Keyword(s):  
Blood Parameters ◽  
Acacia Auriculiformis ◽  
Predatory Fish ◽  
Heteropneustes Fossilis ◽  
Plant Seed ◽  
Alcohol Extract ◽  
Plant Seeds ◽  
Indigenous Plant ◽  
Clerodendrum Viscosum ◽  
Seed Extracts

Haemolytic effects of different extracts of five indigenous plant seeds viz. Datura innoxia (Mill) (Shada Dhutra), Clerodendrum viscosum (Vent.) (Vat), Amoora rohituka (Roxb.) Wt. ct. Arnott (Pitraj), Acacia auriculiformis A. Cunn. Ex. Benth. (Akashmoni) and Pongamia pinnata (L.) Pierre (Karinja) were studied upon a predatory fish, Singhi, Heteropneustes fossilis (Bloch) under laboratory conditions. Toxicants inducing effects on the blood parameters included decreased RBC and WBC counts, low haemoglobin percentage and decreased PCV (packed cell volume), MCV (mean corpuscular volume) and MCH (mean corpuscular haemoglobin). Haemolysis action included shrunken or swollen RBCs, granulated nuclei of RBCs and pyknotic nuclei of WBCs, clumping of RBCs and syncitium of RBC matrix. Damage of blood cells with absolute ethyl alcohol extract was most pronounced with all of the seed extracts. The order of toxicity of the five seed extracts on the blood parameters of Singhi was: D. innoxia < A. auriculiformis < P. pinnata < C. viscosum < A. rohituka seed extracts. On the basis of haemolysis the toxicity was: A. rohituka > C. viscosum > P. pinnata > D. innoxia > A. auriculiformis seed extracts. DOI: http://dx.doi.org/10.3329/cujbs.v5i1.13367 The Chittagong Univ. J. B. Sci.,Vol. 5(1 &2):27-36, 2010

scholarly journals Metal-Assisted and Microwave-Accelerated Germination

2019 ◽  
Author(s):  
Kadir Aslan ◽  
Monet Stevenson ◽  
Janelle Guy ◽  
Enock Bonyi ◽  
Muzaffer Mohammed ◽  
...  
Keyword(s):  
Microwave Heating ◽  
Room Temperature ◽  
Experimental Conditions ◽  
Plant Seed ◽  
Au Nps ◽  
Plant Seeds ◽  
Combined Use ◽  
Accelerated Growth ◽  
20 Nm ◽  
Hydroponic Growth

ABSTRACTWe report the proof-of-principle demonstration of a methodology, called Metal-Assisted and Microwave-Accelerated Germination, to modulate the germination of plant seeds and growth of plants using gold nanoparticles (Au NPs) and microwave heating. As a model plant seed, basil seeds were heated in a solution of 20 nm Au NPs using a microwave waveguide fiber connected to a solid-state microwave operating at 8 GHz at 20 W, which resulted in the development of longer basil gum as observed by optical microscopy. In control experiments, Au NPs or microwave heating was omitted to establish a baseline growth level under standard experimental conditions (no microwave heating or no Au NPs). Our results also show that hydroponic growth and soil growth of basil plants can be delayed with the use of 20 nm Au NPs at room temperature without microwave heating. The combined use of 20 nm Au NPs and microwave heating at 10 W for 6 minutes results in accelerated growth prolonged life of basil plants.

scholarly journals Performance of blackgram (Phaseolus mungo L.) cultivars as influenced by row spacings and molybdenum

2018 ◽  
Vol 10 (2) ◽  
pp. 753-758
Author(s):  
Ravi Kumar ◽  
G. S. Tomar ◽  
Narendra Kumawat ◽  
Jagdeesh Morya
Keyword(s):  
Seed Yield ◽  
Economic Efficiency ◽  
Harvest Index ◽  
Production Efficiency ◽  
Growth And Yield ◽  
Plant Seed ◽  
Maximum Production ◽  
Plant Seeds ◽  
Biological Yield ◽  
Number Of Leaves

A field trial was conducted to assess the performance of blackgram cultivars to row spacings and molybdenum doses at the Instructional-cum-Research Farm, Indira Gandhi Krishi Vishwavidyalya, Raipur (Chhattisgarh), under rainfed conditions during kharif season of 2011. The treatments comprised of three varieties viz., Indra urd-1, RU-03-16 and RU-03-52; two row spacings viz., 30x10 cm and 45 x 10 cm and three treatments of molybdenum viz., control, 4 g/kg seed and 4 g/kg seed + two spray of  urea @ 2%. The experiment was laid out in factorial randomized block design (FRBD) with three replications. Results revealed that all the growth and yield attibutes such as number of branches/plant, number of leaves/plant, seeds/plant, seed yield (781 kg/ha), biological yield (2736 kg/ha) and harvest index (29.71%) noticed significantly higher under cultivar Indra urd-1. Similarly, maximum production efficiency (9.52 kg/ha/day), economic efficiency (Rs. 218.82/ha/day) and gross returns (Rs. 32,335/ha) were also recorded in Indra urd-1 as compared to rest of the cultivars. Further results showed that all the growth and yield attributes viz., number of  branches/plant, number of leaves/plant, seeds/plant, seed yield (778 kg/ha), biological yield (2653 kg/ha) and harvest index (29.10%) recorded significantly higher in row spacing of 30 x 10 cm as compared to 45 x 10 cm. Maximum production efficiency (9.49 kg/ha/day), economic efficiency (Rs. 216.44/ha/day) and gross returns (Rs. 32,107/ha) were also recorded in 30 x 10 cm. Application of molybdenum @ 4 g/kg seed along with 2% urea spray twice gave highest seed yield (810 kg/ha), biological yield (2698 kg/ha) and harvest index (29.25%) over control and seed treatment with molybdenum @ 4 g/kg. Similarly, application of molybdenum + 2% urea spray twice gave maximum production efficiency (9.88 kg/ha/day), economic efficiency (Rs. 226.49/ha/day) and gross returns (Rs. 33,293/ha).

scholarly journals IDENTIFIKASI PATOGEN PENYEBAB BUSUK BATANG PADA BIBIT EUCALYPTUS PELLITA DI PERSEMAIAN

2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Iin Arsensi
Keyword(s):  
Stem Rot ◽  
Defense Reaction ◽  
Plant Seed ◽  
Plant Seeds ◽  
Food Substance ◽  
Eucalyptus Pellita ◽  
Host Pathogen ◽  
Fusarium Sp ◽  
Rot Disease ◽  
Symptoms And Signs

The pathogen attacks the host plant in various ways to obtain the food substance needed by the host pathogen. To get into the host pathogen is able to break the host's defense reaction. The aim of the study was to know the symptoms and signs of stem rot disease in E. pellita in the nursery. In addition, also to determine the frequency and intensity of rodent pathogen attack in plant seeds E. pellita from shoot cuttings. Research in the nursery begins by determining the sample of plant seeds to be observed. Seed determination is done by census. Seedlings consisted of 120 plants in a plastic rack that was repeated as many as 3 replications so that the total number of seedlings observed was 120 plant seed x 3 replicates x 4 families = 1.440 plant seeds. The pathogen that causes stem rot on E. pellita seed is Fusarium sp which is transmitted through soil.

scholarly journals Effect of Ethephon Application on Seed Yield and Yield Components of Two Faba Bean (Vicia faba L.) Cultivars

2022 ◽  
Vol 9 (sp) ◽  
pp. 2427-2432
Author(s):  
Aybegün Ton
Keyword(s):  
Seed Yield ◽  
Faba Bean ◽  
Yield Components ◽  
Research Area ◽  
Plant Seed ◽  
Plant Seeds ◽  
Cropping Season ◽  
Yield And Yield Components ◽  
The Mean ◽  
Plot Design

The aim of present study was to determine the effects of different ethephon doses on grain yield and yield components of two faba bean cultivars. The experiment was established in 2019/2020 and 2020/2021 cropping season at Research Area of Field Crops Department, Agriculture of Faculty, Cukurova University Adana, Turkey. The field experiment was laid out in randomized complete blocks design (RCBD) with three replications on the basis split plot design with cultivars (Luz de Otono and Histal) in main plots and ethephon doses (0, 500, 1000, 1500 g ha-1) in sub plots. Plant height (cm), branches per plant, pods per plant, seeds per plant, seed yield per plant (g), 100 grain weight (g), seed yield (kg ha-1) were investigated. Differences among the cultivars and ethephon applications were significant for seed yield and it varied from 1782 to 3388 kg ha-1 in the mean of the years. Seed yield also decreased with increasing ethephon doses. Seed yield was higher in 2019/2020 (3355 kg ha) than 2020/2021 (1841 kg ha-1) where low rainfed and high temperature. The present results suggested that ethephon applications at inititation of flowering were not useful for seed production of faba bean.

Preparation of Open-Cell Alumina Ceramic Foam with Uniform Cell Structure Using Plant Seed Template

2008 ◽  
Vol 41-42 ◽  
pp. 265-270 ◽  
Author(s):  
Jing Yuan Yu ◽  
Xu Dong Sun ◽  
Qiang Li ◽  
Xiao Dong Li ◽  
Yinong Liu ◽  
...  
Keyword(s):  
Cell Structure ◽  
Slip Casting ◽  
Rheological Characteristic ◽  
Solid Content ◽  
Ceramic Foam ◽  
Homogeneous Microstructure ◽  
Plant Seed ◽  
Open Cell ◽  
Plant Seeds ◽  
Dense Cell

Open-cell Al O ceramic foams with uniform cell structures and dense cell struts were fabricated by centrifugal slip casting using the plant seeds as the templates. The rheological characteristic of Al O slurries with up to 50 vol.% solid content was investigated. The shrinkage matching between the Al O green compact and the plant seeds during drying was studied. The effect of solid contents of slurries on change of green density of cell struts along the height of compacts was analyzed. The drying and sintering schedule of Al O green cakes were studied. The results indicated mass segregation of Al O particles with different sizes during centrifugal process was negligible for slurries with high solid loadings with 50 vol. %. The cell struts of green bodies had high density of 63.8% TD. After sintered at 1500 °C for 2 h, the final products had dense cell struts with high sintered density of 98.9%TD and homogeneous microstructure. The porosity and compressive strength of sintered products was 66.5% and 5.26 MPa, respectively.

Detection and Control of I/O Interface by Calling DLL in VB

2014 ◽  
Vol 998-999 ◽  
pp. 1129-1132
Author(s):  
Wei Ren ◽  
Yan Wang
Keyword(s):  
Control System ◽  
Visual Basic ◽  
Attention Problems ◽  
Dynamic Link Library ◽  
Input And Output ◽  
Mixed Programming ◽  
Bottom Interface ◽  
And Control ◽  
Output Interface ◽  
Dynamic Link

This paper details the realization of the detection and control of the equipment interface using visual basic (VB) and C++ mixed programming. It discusses the attention problems and programming method of making dynamic link library and the VB called dynamic link library, and an example is presented to detect and control the device interface, using VB to call the dynamic link library can realize the detection and control of the bottom interface, it solved the problem that VB language cannot realize the detection and control of input and output interface. This method has universal significance for the design of control system.

scholarly journals Surface structure and properties of plant seed oil bodies

1992 ◽  
Vol 117 (2) ◽  
pp. 327-335 ◽  
Author(s):  
JT Tzen ◽  
AH Huang
Keyword(s):  
Phospholipase A2 ◽  
Seed Oil ◽  
Structural Model ◽  
Chemical Properties ◽  
Oil Body ◽  
Oil Bodies ◽  
Plant Seed ◽  
Plant Seeds ◽  
Intracellular Storage ◽  
Plant Seed Oil

Storage triacylglycerols (TAG) in plant seeds are present in small discrete intracellular organelles called oil bodies. An oil body has a matrix of TAG, which is surrounded by phospholipids (PL) and alkaline proteins, termed oleosins. Oil bodies isolated from mature maize (Zea mays) embryos maintained their discreteness, but coalesced after treatment with trypsin but not with phospholipase A2 or C. Phospholipase A2 or C exerted its activity on oil bodies only after the exposed portion of oleosins had been removed by trypsin. Attempts were made to reconstitute oil bodies from their constituents. TAG, either extracted from oil bodies or of a 1:2 molar mixture of triolein and trilinolein, in a dilute buffer were sonicated to produce droplets of sizes similar to those of oil bodies; these droplets were unstable and coalesced rapidly. Addition of oil body PL or dioleoyl phosphatidylcholine, with or without charged stearylamine/stearic acid, or oleosins, to the medium before sonication provided limited stabilization effects to the TAG droplets. High stability was achieved only when the TAG were sonicated with both oil body PL (or dioleoyl phosphatidylcholine) and oleosins of proportions similar to or higher than those in the native oil bodies. These stabilized droplets were similar to the isolated oil bodies in chemical properties, and can be considered as reconstituted oil bodies. Reconstituted oil bodies were also produced from TAG of a 1:2 molar mixture of triolein and trilinolein, dioleoyl phosphatidylcholine, and oleosins from rice (Oryza sativa), wheat (Triticum aestivum), rapeseed (Brassica napus), soybean (Glycine max), or jojoba (Simmondsia chinensis). It is concluded that both oleosins and PL are required to stabilize the oil bodies and that oleosins prevent oil bodies from coalescing by providing steric hindrance. A structural model of an oil body is presented. The current findings on seed oil bodies could be extended to the intracellular storage lipid particles present in diverse organisms.

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