scholarly journals PENGGUNAAN SARI UMBI BAWANG MERAH DALAM PEMBIBITAN PAPAYA

2015 ◽  
Vol 30 (2) ◽  
pp. 56
Author(s):  
Faryska Nur Ichsan ◽  
Djoko Purnomo ◽  
Linajanti Darsono

<p><em>Community awareness </em><em>in healthy life is </em><em>increasing</em><em> by consuming </em><em>nutritious food</em><em> through </em><em>such as</em><em> fruit</em><em>.</em><em> So it is necessary for increasing the availability of fruit either by cultivation expansion or technology development. The production l</em><em>ife of</em><em> </em><em>papaya crop </em><em>approximately</em><em> three years </em><em>only, </em><em>so that</em><em> replanting takes relatively fast</em><em>.</em><em> </em><em>But the</em><em>re is some limitations mainly the availability of suitable seedling</em><em> (age and uniformity). For improving the availability of suitable papaya seedling can be used gibberellin as growth regulator substance. But gibberellin in pure analysis limitations are expensive, not always available, and high technology in application.  The aim of the research was to test of shallot juice (1 kg of shallot bulbs destroyed by juicer) as gibberellin substitute for improving papaya seedling.</em><em>  </em><em>The experiment was conducted at </em><em>terrace house</em><em>, consist of percentage and speed of germination and growth of seedling observation after seed soaked 2 hours in shallot juice several concentration treatment. Test of the germination percentage and speed conducted for 10 seeds on pastur paper in petridish (11.5 diameter) as germination media. The experiment for growth seedling was arranged in randomized completely design which the treatments are: seed soaked in water,  soaked in </em><em>5, 10, 15, dan 20 ml l<sup>-1</sup> shallot juice concentration, and soaked in gibberellin 10 ppm. Each of the experiment unit consist of 8 seedlings which planted on trypot (composite of plastic pots by size 5.5x5.5 cm at surface, 5.5 cm height, and 2,5x2,5 cm at the base, each of traypot consist of 32 pots). So in each of tray pot there are 8 experimental units, each of experimental unit repliclated 3 times</em><em>. </em><em>Traypot and petridish at terrace house shaded by woven plastic 65%, by size </em><em>2</em><em>.</em><em>5x1</em><em>.</em><em>5</em><em>x2.0 </em><em>m</em><em> (length, width, and height). Yield of the research showed that shallot juice potential as gibberellin replacement in papaya nursery. Response of papaya seed (percentage and speed of germination) and seedling (length of root, stem diameter, number of leafs, leaf area, and weight of biomass) to 15 ml l<sup>-1</sup> shallot juice equal with gibberellin 10 ppm.</em></p>

2015 ◽  
Vol 35 ◽  
pp. 36-44
Author(s):  
M. Nagarajan ◽  
K. Sankar Ganesh

Chromium is a serious heavy metal and it is considered as an environmental hazard. Toxicity effects of chromium on growth and development of plants including inhibition of germination process decrease of growth and biomass of plant. The aim of this research is to study the accumulation of Cr and its effect on the Germination and growth of some paddy varieties. Thus, the varieties such as ADT-43, ADT-45, IR-50, TKM-9, CO-33, ASD-16 and CO-43 are grown in petriplates treated with different concentrations of Chromium (0, 5, 10, 25, 50, 100, and 200 mg/L). After one week exposure the seedlings were removed and morphophysiological parameters like germination percentage, seedling length and dry weight of paddy varieties and accumulation of Cr were determined. The results indicated that the concentrations more than 100 mg/L chromium cause the reduction of morphophysiological parameters in the treatments rather than control and Cr addition in the cultures caused enhancement of chromium content in roots and shoots of plant seedlings. It was also noted that accumulation of chromium in the roots was much higher than the shoots of the paddy seedlings under treatment.


2013 ◽  
Vol 15 (1) ◽  
pp. 7
Author(s):  
Faryska Nur Ichsan ◽  
Djoko Purnomo ◽  
Linajanti Darsana

<p>People awareness toward nutritious food through the consumption of fruit is rising. Therefore, it needs the increasing of seed availability, either from the planting expansion or cultivation technology development. The productive life of papaya is around 3 years, so the rejuvenate of plant takes relatively quickly. However, the obstacle occurred comes from the adequate life of seed availability and the limitedness of homogeneous seed. Therefore, young seed forced to be used in the field will cause the growth of the plant not in unison. Moreover, it is also not profitable if it is considered from the cultivation of seedlings, since the price of the seed will be cheaper. This research aims to get papaya’s seed which can grow fast and uniformly using growth stimulant substance just like gibberellins that is easy to get and cheap. The experiment studies using concentrations of union juice as the substance to soak the planting material seed of papaya before it is planted. The test of durability and germination speed toward 10 seeds on opaque paper in a petri dish germination medium which the diameter is 11,5 cm. The experiment of seeds growth uses completely randomized design (RAL) in a factor of water treatment, the concentration of union juice is 5, 10, 15, and 20 ml l-1, and 10 ppm gibberellin. Every treatment (experimental unit) consists of 8 seeds planted on the traypot (combination of plastic pots, which each size about: on the surface and high 5,5x5, 5x5,5 cm, pots base 2,5x2,5 cm, an each traypot consists of 32 pots). Thus, there were 8 unit experiments for each traypot, and every single unit of experiments is repeated 3 times. Traypot and petri dish are put beneath the roof in the terrace protected by paranet 65% with 2,5x1,5x2,0 m (length, width, and height) in size. The union juice which is potential is used as the substitute of plant growth regulators gibberellins in papaya seedling. The response of papaya seed toward union juice with 15 ml l-1 concentration is equal to 10 ppm gibberellin, occurred in germination (durability and speed of germination) and the seed growth (the root length, the stem diameter, number of leaves, and biomass weight).</p>


2021 ◽  
Vol 923 (1) ◽  
pp. 012063
Author(s):  
Sahar Hussein Hamarashid

Abstract Some plants can prevent seed germination and growth in other plants by producing toxic allelochemicals materials. this study aimed was to effect of walnut extract on germination characteristics of several species of weeds. The experiment was conducted in factorial based on a completely random design with three replications. The treatments of the experiment were two walnut cultivars, four species of weeds) Soutani, Rajal, Khardel and Zivan) and four levels of walnut extract (0, 10, 20 and 30 percent). Results showed that there was a significant difference among walnut extract concentration, weed species, and interaction between them for all studied traits (P< 0.01). In present study with increase the concentration of walnut extract from zero to 30%, in all four types of weeds the germination rate, germination percentage, root, stem and seedling length, and seed vigor index were significantly reduced. Also in the treatment of 30%, walnut extract species of Khardel showed the highest, and Shoufan, Rajal, and Zivan showed the lowest germination rat, germination percentage, root, stem, and seedling length, and seed vigor index.


2016 ◽  
Vol 7 (1) ◽  
pp. 77-84 ◽  
Author(s):  
Elena Grebenshchikova

Technoethics is a new, but rapidly developing field of ethical reflection of technoscience. It can claim to unite the various ethical projections of the science and technology development in a common approach. One of the starting points of understanding this role of technoethics may be NBIC-convergence. The ethical dimensions of the NBIC-projects is represented in these sub-areas of applied ethics as a nanoethics, bioethics, neuroethics and ICT ethics. In this article particular attention is paid to the biomedical field, which is a prime example of innovative high technology, as well as the interaction of different types of ethics.


2020 ◽  
Vol 44 (5) ◽  
pp. 232-238
Author(s):  
Y. M. Ishiaku ◽  
M. R. Hassan ◽  
S. A. Abubakar ◽  
J. T. Amodu ◽  
S. B. Abdu ◽  
...  

A trial was conducted to investigate the germination percentage and emergence potential of nine imported temperate forage germplasms at the National Animal Production Research Institute, Shika, Nigeria. The seeds consisted of seven grasses namely; Beefsteak plant (Fructus perillae), Sweet elephant grass (Pennisetum alopecuroides), Wild foxtail millet (Setaria viridis), Napier grass (Pennisetum purpureum), King grass (Pennisetum sinese), Chinese sorghum (Sweet sorghum) and Zea mexican schard (Purus frumentum) and two legumes namely; Chinese woad (Isatis tinctoria) and Chinese alfalfa (Medicago sativa). A laboratory germination test and pot emergence trial was carried out to ascertain their viability. The result of the experiment showed that Sweet elephant grass, napier grass and king grass recorded over 90 % germination and the least was 30 % in Chinese sorghum. Chinese alfalfa and wild foxtail millet had least germination percentage with 100 % Seed dormancy.Highest emergence rate, seedling length and seedling vigour indexwere observed in king grass than the other forage germplasms. The highest percentage emergence was obtained in king grass > sweet elephant grass > napier grass > Zea mexican schard > beefsteak plant > Chinese woad > Chinese sorghum, respectively. It was concluded that these forages can successfully be adopted as animal feed resources in Nigeria and therefore, recommended formulti-locational trials in all the ecological zones of the country.


2017 ◽  
Vol 4 (2) ◽  
pp. 183-186
Author(s):  
Prabhakaran J ◽  
Kavitha D

An experiment was conducted in order to determine the allelopathic effects of the aqueous extract of Trianthima portulacastrum L.on the seed germination, seedling growth and chlorophyll content ofsesame (Sesamum indicum L.). Greenhouse experiment was carried out as RCBD (Randomized complete block design)with four replications. Treatments included 0, 1, 2, 3 and 4% (W/W) residues of whole plant of T.portulacastrum with normal field soil. Results showed that the low concentrations of T.portulacastrum had no significant effect on the germination percentage, seedling length, dry weight, total chlorophyll contents at lower concentration(1%) of weed residues. However, treatments with higher concentrations had negative effects on germination, growth and seedling dry weight of sesame.


Author(s):  
Gamze Kaya

The study aimed to evaluate the use of germination indices as a screening tool for salinity tolerance during germination and early seedling growth of pepper cultivars, and to distinguish the potential for genetic responses to salt tolerance. In the study, the seeds of seven pepper cultivars were germinated at increasing NaCl levels of 5, 10, 15 and 20 dS/m and distilled water as the control treatment for 14 days. Germination percentage (GP), mean germination time (MGT), germination index (GI), germination stress tolerance index (GSTI), seedling length (SL), seedling fresh weight (SFW) and vigor index (VI) were investigated. Results showed that germination percentage decreased with increasing NaCl levels while the highest germination percentage at 20 dS/m was 92% in BT Burdem with no significant reduction. Seedling growth of pepper cultivars was severely inhibited by increasing salinity stress. SFW was depressed depending on reduction in SL due to increasing NaCl. BT-Burli and BT İnce Sivri were the most tolerant cultivars to NaCl and they were used for genetic resources towards salinity. Seedling growth was much more sensitive to salinity than germination because of the highest percent reduction in seedling growth parameters. Among the parameters, GSTI gave the highest significant correlation coefficient with SL and SFW; indicating that it would be useful for estimating seedling growth. It was concluded that genotypic variation was observed among pepper cultivars for salinity tolerance and GSTI could be used for a predictor for salinity tolerance.


Author(s):  
B. Priyadharshini, ◽  
M. Prakash ◽  
M. Vignesh ◽  
S. Murugan ◽  
R. Anandan

Sesame is notable for its rich antioxidants and sesame oil is also familiar for its resistance to oxidation. The cultivation of sesame is usually restricted under abiotic stress conditions. Hence in order to study the performance of sesame genotypes to saline stress, an experiment was conducted to screen ten ruling varieties of sesame viz., CO1, SVR1, SVPR1, VRI 1, VRI 2, TMV 3, TMV 4, TMV 5, TMV 6 and TMV 7 at five different EC levels (EC 1, 2, 3, 4 and 5). Seedling observations namely, germination percentage, speed of germination, shoot length, root length and dry matter production were recorded. Among the genotypes, it was found that under higher saline conditions (EC5), VRI 1 recorded higher seedling length (2.0 cm), vigour index I (100) and vigour index II (1.15), whereas under normal condition, TMV 4 and CO 1 performed better. In general, there was a decrease in all the seedling parameters with increased levels of salinity. With STAR software, Multivariate analysis was done and on the basis of dendrogram, five clusters were formed and the cophenotic correlation co- efficient was found highest in Control (0.912) followed by EC 2 ( 0.829).


2015 ◽  
Vol 2 (2) ◽  
pp. 114-117
Author(s):  
Anbarasan R ◽  
Prabhakaran J

Various concentrations (5%, 10%, 15% and 20%) of aqueous extracts prepared from two weed species namely Ageratum conyzoides L. and Cleome viscosa L. and used for the present experiments to determine their allelopathic potential on growth and developmental changes on sesame (Sesamum indicum L.). The weed extracts showed an inhibitory effect on germination percentage, root and shoot growth, and fresh and dry weight of sesame seedlings. The extracts of A.conyzoides had more inhibitory effect at 20%concentration,than that of C.viscosa on growth parameters of sesame.


Sign in / Sign up

Export Citation Format

Share Document