Influence of tuber weight and cutting on growth and yield of safed musli (Chlorophytum borivilianum)

2016 ◽  
Vol 63 (5) ◽  
pp. 619-625 ◽  
Author(s):  
Jaafar Juju Nakasha ◽  
Uma Rani Sinniah ◽  
Adam B. Puteh ◽  
Mallappa Kumara Swamy
2020 ◽  
Vol 8 (5) ◽  
pp. 1841-1844
Author(s):  
Jagadishchandra Hiremath ◽  
Gangadharappa PM ◽  
Hegde NK ◽  
Kuknoor L ◽  
Mastiholi AB ◽  
...  

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Fengchang Huang ◽  
Yaxin Long ◽  
Qingqing Liang ◽  
Boregowda Purushotham ◽  
Mallappa Kumara Swamy ◽  
...  

With the advancement of nanobiotechnology, eco-friendly approaches of plant-mediated silver nanomaterial (AgNP) biosynthesis have become more attractive for biomedical applications. The present study is a report of biosynthesizing AgNPs using Chlorophytum borivilianum L. (Safed musli) callus extract as a novel source of reducing agent. AgNO3 solution challenged with the methanolic callus extract displayed a change in color from yellow to brown owing to the bioreduction reaction. Further, AgNPs were characterized by using UV–visible spectrophotometry, X-ray Diffraction (XRD), Atomic Force Microscopy (AFM), and Fourier Transform Infrared Spectroscopy (FTIR). UV–vis spectrum revealed the surface plasmon resonance property of AgNPs at around 450 nm. XRD pattern with typical peaks indicated the face-centered cubic nature of silver. AFM analysis confirmed the existence of spherical-shaped and well-dispersed AgNPs having an average size of 52.0 nm. Further, FTIR analysis confirmed the involvement of different phytoconstituents of the callus extract role in the process of bioreduction to form nanoparticles. The AgNPs were more efficient in inhibiting the tested pathogenic microbes, namely, Pseudomonas aeruginosa, Bacillus subtilis, Methicillin-resistant Escherichia coli, Staphylococcus aureus, and Candida albicans compared to callus extract. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay confirmed the cytotoxic property of AgNPs against human colon adenocarcinoma cell line (HT-29) in a dose-dependent manner. At higher concentrations of 500 μg/mL AgNPs, the cell viability was observed to be only 7% after 24 hours with IC50 value of 254 μg/mL. Therefore, these AgNPs clearly endorse the manifold potential to be used in various biomedical applications in the near future.


Author(s):  
Jajang Sauman Hamdani ◽  
Sumadi , ◽  
Yayat Rochayat Suriadinata ◽  
Lourenco Martins

ABSTRACT<br /><br />Use of shade on the cultivation of  potato in medium altitude is expected to reduce both light intensity and temperature, and therefore is more suitable for potatoes to grow in medium altitude. While the use of growth regulators subtances improving the process of assimilate distribution from the leaves to the tuber. Therefore  use of shade followed by plant growth regulators applications are expected to increase of  growth and yield. The objectives of the experiment were to determine growth and yield of  potato cultivar Atlantik grown  at medium  altitude with different types of shading and  plant growth regulators. The experiment was conducted at an experimental station of the Faculty of Agriculture, Padjadjaran University, Jatinangor, Sumedang, at an altitude 685 m asl. The experiment was arranged in  a split plot design  consisting of two factors and three replications. The main plots were types of shading (without shading, paranet 45%, UV polyethylene, and corn plant) and the sub plots were combination of plant growth regulators (benzylaminopurine + paclobutrazol), (benzylaminopurine +chloro choline chloride), benzylaminopurine, paclobutrazol, chloro choline chloride).  The results showed that the effect of interaction between shading and plant growth regulator on growth and yield of the potato were not significant. Paranet shade and corn plant shade  increased plant height, leaf area index, tuber weight per plant, yield  per hectar and tuber grade A of potato cultivar Atlantik. Corn plant shading gave potato yield 21.6 ton ha-1 with 64% grade A tuber. Paclobutrazol decreased potato plant  height,  but  increased  number  of  tuber per plant and yielded highest tuber weight of 702.1 per plant (23.3 ton ha-1 ), with 70.9% grade A tuber.    <br /><br />Keywords: Benzylaminopurine, microclimate, paclobutrazol, temperature


2021 ◽  
pp. 14-22
Author(s):  
Adinda Wahyuni ◽  
Netti Herawati ◽  
Warnita Warnita

Aims: The purpose of this study was to obtain the best interaction between guano doses and mulch on the growth and yield of potato plants. Study Design: The experimental design used was factorial 2 factors in a completely randomized design (CRD). Place and Duration of Study: This experiment was carried out in Alahan Panjang, Lembah Gumanti District, Solok Regency, West Sumatra from March to June 2018. Methodology: Factorial design 2 factors was use in research. The first factor consisted of 4 levels of guano fertilizer doses of 0, 3, 6 and 9 t ha-1. The second factor consisted of black silver plastic mulch and black plastic mulch. Data were analyzed statistically with the Fisher test and if significantly different then continued with the Duncan’s New Multiple Range test (p≤0.05) Results: No interaction between guano fertilizer and the two types of mulch tested with respect to plant height, number of leaves, and smallest tuber diameter were observed. Guano fertilizer at 9 t ha-1 gave the best influence on the number of tubers and the diameter of tuber. Black plastic mulch had the best influence on the number of tubers, the diameter of tuber, the weight of tubers per plant and the weight of tubers per hectare. Conclusion: The dosage of guano fertilizer of 9 t ha-1gave the best effect on the number and diameter of tubers. The type of black plastic mulch gave the best effect on tuber number, tuber diameter, tuber weight per plant and tuber weight per hectare.


Author(s):  
Eni Sumarni ◽  
Noor Farid ◽  
Loekas Soesanto ◽  
Jajang Juansah

Planting potatoes in the tropical lowlands as an effort to reduce the adverse effects of planting in the highlands such as erosion, pests and plant diseases has been carried out and the tubers have been successfully obtained. Planting of potato seeds was carried out with an aeroponic system and climate modification in the root zone cooling environment. Climate modification is carried out at an altitude of 250 m asl and <125 m asl. The stability of the temperature in the aeroponic chamber can be maintained by regulating the time of spraying cold nutrients through the nozzles to the root area. However, the importance of the time to provide nutrition in order to maintain the optimal temperature of the root area in aeroponic systems in the lowlands has not been widely reported scientifically. The purpose of this study was to obtain the appropriate time for nutrition in order to maintain optimal chamber temperature and to have an effect on the growth and yield of potato seeds. The research was conducted in the greenhouse of the Faculty of Agriculture, Jenderal Soedirman University, Purwokerto, Central Java, Indonesia. Height of place <125 m above sea level. The study was conducted from July to September 2017. The factors that were tried in the study were as follows: 1. Length of time for nutrition (T): T1: 2.5 minutes OFF and 15 minutes ON; T2: 5 minutes OFF, 15 minutes ON, T3: 10 minutes OFF, 15 minutes ON, T4: 15 minutes OFF, 15 minutes ON, 2. Varieties (V): V1 (Atlantic), V2 (Granola). Growth parameters observed: plant height, number of leaves, number of tubers, tuber weight. Experiment using a randomized block design with 3 replications. The data were analyzed by F test and continued with Duncan’s Multiple Range Testof 5% level.The results showed that the duration of nutrient administration by setting a timer gave different results on the growth and development of aeroponic plants of potato seeds in the lowlands 125 m above sea level. The duration of nutrition administration 2.5 minutes OFF gave the highest number of tubers and tuber weight compared to the duration of nutrition 5 minutes, 10 minutes and 15 minutes OFF. The number of tubers obtained is 7.3 tubers / plant with boto an average of 2 mg. The duration of nutrition is 5 minutes, 10 minutes and 15 minutes OFF does not produce tubers.


2012 ◽  
Vol 6 (41) ◽  
pp. 5439-5446
Author(s):  
Juju Nakasha Jaafar ◽  
Rani Sinniah Uma ◽  
Puteh Adam ◽  
Aishah Hassan Siti

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