scholarly journals Pengembangan Media Pembelajaran E-Magazine sebagai Sumber Belajar Biologi Siswa Kelas XII

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Ainul Fuad ◽  
Hilda Karim ◽  
Muhiddin Palennari
Keyword(s):  
Plant Growth ◽  
Subject Matter ◽  
Growth And Development ◽  
Plant Growth And Development ◽  
Practical Test ◽  
Validity Test ◽  
R And D ◽  
The Media ◽  
The Subject ◽  
Electronic Magazine

Abstract. This Research and Development (R and D) concerns on learning media development regarding electronic magazine (e-magazine) for Plant Growth and Development subject. The R and D’s model used Analyze, Design, Develop, Implement, Evaluate (ADDIE). Validity test obtained from two expert validators and Practicality test obtained from the using of media by teacher and students. The Develop stage of this study conducted by validating e-magazine for further be implemented on SMAN 10 Gowa, Class of XII4 Natural Science. The number of subjects comprised of 29 students. Data collected from interview, observation and questionnaire. The result of validity test showed the average of media feasibility percentage is  82%. While the subject matter feasibility gained 81%. Both of these result showed very decent category which was meant that the media is feasible to be used. The average of teacher and students respond gained 83% and 81 % respectively toward positive respond. From the point of feasibility which had been evaluated by validity and practical test, this study can be conclude that emagazine is valid and practice learning media to be implemented in learning process. Keywords: e-magazine, validity, practicality, plant growth and development

scholarly journals Pembelajaran Arthropoda Menggunakan Booklet Sebagai Sumber Belajar Mandiri Siswa Kelas X SMA/MA

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Fadil Muhammad ◽  
Muhiddin P Muhiddin P ◽  
Adnan Adnan
Keyword(s):  
Research And Development ◽  
Learning Process ◽  
Subject Matter ◽  
Media Development ◽  
Alternative Learning ◽  
Practical Test ◽  
Validity Test ◽  
R And D ◽  
The Media ◽  
The Subject

Abstract.  This Research and Development (R and D) concerns on learning media development that can be used as an alternative learning source of booklet on the subject of animal world sub chapter arthropoda. The R and D’s model used Analyze, Design, Develop, Implement, Evaluate (ADDIE). Validity test obtained from two expert validators and Practicality test obtained from the using of media by teacher and students. The Develop stage of this study conducted by validating e-magazine for further be implemented on SMAN 5 Jeneponto, Class of X MIA3. The number of subjects comprised of 35 students. Data collected from interview, observation and questionnaire. The result of validity test showed the average of media feasibility percentage is  85%. While the subject matter feasibility gained 86%. Both of these result showed very decent category which was meant that the media is feasible to be used. The average of teacher and students respond gained 91% and 89,2 % respectively toward positive respond. From the point of feasibility which had been evaluated by validity and practical test, this study can be conclude that booklet is valid and practice learning media to be implemented in learning process. Keywords: booklet, interactive, validity, practicality, arthropoda

Frederick Campion Steward, 16 June 1904 - 13 September 1993

1995 ◽  
Vol 41 ◽  
pp. 420-437 ◽  
Keyword(s):  
Plant Physiology ◽  
Plant Growth ◽  
Growth And Development ◽  
Classroom Teaching ◽  
Plant Growth And Development ◽  
Cornell University ◽  
Historical Continuity ◽  
Critical History ◽  
History Of ◽  
The Subject

To document and analyse objectively F.C. Steward's influence on the course of plant physiology is a task too great to be undertaken here. A detailed analysis would amount to a critical history of modem plant physiology. As Steward said of F.F. Blackman, F. R. S., in a memorial published in 1947 ‘To appraise the work and influence of F.F. Blackman one must look beyond the papers which bear his name, important as those were and are.’ Indeed, in a notice of a Festschrift published on the occasion of Steward’s retirement from Cornell University, a reviewer who knew him well aptly noted that ‘it is not so much the reviews themselves which form the real tribute to F.C. Steward as the fact that it was appropriate to invite experts in five different areas of plant physiology in order to cover the fields which Steward himself has covered and often led’. He later said that it would be difficult to imagine what contemporary plant physiology would be like had F.C. Steward not lived. It is easy to argue that Steward’s greatest contribution to plant physiology was that as a result of the scope and magnitude of his research, writings and lecturing activities, and his classroom teaching, he was able to create and sustain for half a century, a broad, highly personalized and extremely attractive context for the study of plant growth and development. Steward went far toward pulling the subject together in a comprehensible modem context, giving it historical continuity, while helping push it into the twentieth century through his unique research style and many contributions. He gave the field considerable glamour through his pioneering research, dynamic lecturing and literate, even graceful prose.

Mechanisms of ethylene biosynthesis and response in plants

2015 ◽  
Vol 58 ◽  
pp. 61-70 ◽  
Author(s):  
Paul B. Larsen
Keyword(s):  
Plant Growth ◽  
Growth And Development ◽  
Ethylene Biosynthesis ◽  
Unsaturated Hydrocarbon ◽  
Flower Senescence ◽  
Detailed Knowledge ◽  
Plant Growth And Development ◽  
Step Process ◽  
Ethylene Response ◽  
Ethylene Signalling

Ethylene is the simplest unsaturated hydrocarbon, yet it has profound effects on plant growth and development, including many agriculturally important phenomena. Analysis of the mechanisms underlying ethylene biosynthesis and signalling have resulted in the elucidation of multistep mechanisms which at first glance appear simple, but in fact represent several levels of control to tightly regulate the level of production and response. Ethylene biosynthesis represents a two-step process that is regulated at both the transcriptional and post-translational levels, thus enabling plants to control the amount of ethylene produced with regard to promotion of responses such as climacteric flower senescence and fruit ripening. Ethylene production subsequently results in activation of the ethylene response, as ethylene accumulation will trigger the ethylene signalling pathway to activate ethylene-dependent transcription for promotion of the response and for resetting the pathway. A more detailed knowledge of the mechanisms underlying biosynthesis and the ethylene response will ultimately enable new approaches to be developed for control of the initiation and progression of ethylene-dependent developmental processes, many of which are of horticultural significance.

Response of Poinsettia Growth and Development to Ratio of Radiant to Thermal Energy

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 508e-508
Author(s):  
Bin Liu ◽  
Royal D. Heins
Keyword(s):  
Plant Growth ◽  
Thermal Energy ◽  
Growth And Development ◽  
Model Simulation ◽  
Interactive Effect ◽  
Dry Weight ◽  
Plant Spacing ◽  
Plant Growth And Development ◽  
Daily Light Integral ◽  
Highly Correlated

A concept of ratio of radiant to thermal energy (RRT) has been developed to deal with the interactive effect of light and temperature on plant growth and development. This study further confirms that RRT is a useful parameter for plant growth, development, and quality control. Based on greenhouse experiments conducted with 27 treatment combinations of temperature, light, and plant spacing, a model for poinsettia plant growth and development was constructed using the computer program STELLA II. Results from the model simulation with different levels of daily light integral, temperature, and plant spacing showed that the RRT significantly affects leaf unfolding rate when RRT is lower than 0.025 mol/degree-day per plant. Plant dry weight is highly correlated with RRT; it increases linearly as RRT increases.

scholarly journals Brassinolide Enhances the Level of Brassinosteroids, Protein, Pigments, and Monosaccharides in Wolffia arrhiza Treated with Brassinazole

Plants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1311
Author(s):  
Magdalena Chmur ◽  
Andrzej Bajguz
Keyword(s):  
Plant Growth ◽  
Growth And Development ◽  
Inhibitory Effect ◽  
Dependent Manner ◽  
Plant Growth And Development ◽  
Concentration Dependent Manner ◽  
Spectrophotometric Methods ◽  
Synthetic Inhibitor ◽  
Wolffia Arrhiza ◽  
First Time

Brassinolide (BL) represents brassinosteroids (BRs)—a group of phytohormones that are essential for plant growth and development. Brassinazole (Brz) is as a synthetic inhibitor of BRs’ biosynthesis. In the present study, the responses of Wolffia arrhiza to the treatment with BL, Brz, and the combination of BL with Brz were analyzed. The analysis of BRs and Brz was performed using LC-MS/MS. The photosynthetic pigments (chlorophylls, carotenes, and xanthophylls) levels were determined using HPLC, but protein and monosaccharides level using spectrophotometric methods. The obtained results indicated that BL and Brz influence W. arrhiza cultures in a concentration-dependent manner. The most stimulatory effects on the growth, level of BRs (BL, 24-epibrassinolide, 28-homobrassinolide, 28-norbrassinolide, catasterone, castasterone, 24-epicastasterone, typhasterol, and 6-deoxytyphasterol), and the content of pigments, protein, and monosaccharides, were observed in plants treated with 0.1 µM BL. Whereas the application of 1 µM and 10 µM Brz caused a significant decrease in duckweed weight and level of targeted compounds. Application of BL caused the mitigation of the Brz inhibitory effect and enhanced the BR level in duckweed treated with Brz. The level of BRs was reported for the first time in duckweed treated with BL and/or Brz.

scholarly journals Correction to: Non-specific phospholipase C (NPC): an emerging class of phospholipase C in plant growth and development

2021 ◽  
Author(s):  
Yuki Nakamura ◽  
Anh H. Ngo
Keyword(s):  
Open Access ◽  
Plant Growth ◽  
Phospholipase C ◽  
Growth And Development ◽  
Plant Growth And Development

The article Non-specific phospholipase C (NPC): an emerging class of phospholipase C in plant growth and development, was originally published Online First without Open Access.

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