scholarly journals Pengaruh pemberian abu sekam padi sebagai bahan desikan pada penyimpanan benih terhadap daya tumbuh dan pertumbuhan bibit kakao (The effects of rice husk ash as desiccation material of seed storage on viability and cocoa seedling growth).

2012 ◽  
Vol 28 (2) ◽  
pp. 90-99
Author(s):  
Pudji Rahardjo
Keyword(s):  
Electrical Conductivity ◽  
Seed Germination ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Growth Parameters ◽  
Seed Viability ◽  
Seed Storage ◽  
Dry Weight ◽  
Seed Moisture Content ◽  
Food Stock

Rice husk ash as desiccation material can be used to maintain seed viability in storage through its ability to absorb humidity during its storage. High relative humidity caused seed moisture content to increase so the respiration rate of seed increases and uses faster food stock. Finally the viability of seed is lost. A research on use of rice husk ash as desiccation material of cocoa seed storage was conducted in Agronomy Laboratory and Kaliwining Experimental Station, Indonesian Coffee and Cocoa Research Institute. Completely Randomized Design was used in this research with treatment of rice husk ash application on cocoa seed as follows: 0 g/100 seeds (A), 5 g/100 seeds (B), 10 g/100 seeds (C), 15 g/100 seeds (D), and 20 g/100 seeds (E). This experiment used four replications. Cocoa seeds were stored in plastic bag within carton box in ambient temperature. The storage periods were 1, 2, and 3 weeks, and parameters of observation consisted of electrical conductivity of dipped water of cocoa seeds, percentage of seed germination, percentage of seed emergence, early growth parameters at one month old including seedlings height of seedling, diameter, leaf number, root length, and dry weight. The result of the experiment showed that the use of rice husk ash at 5-10 g/100 seeds could maintain electrical conductivity of dipped water at low level, percentage of seed germination at 99-100 % and percentage of seed emergence at 79-91% after two weeks storage. The use of rice husk ash at 5-10 g/100 seeds after two weeks storage affected height of cacao seedling, but did not affected stem diameters, leaf numbers, root lengths, and dry weights

scholarly journals Effect of acetic acid on rice seeds coated with rice husk ash

Revista CERES ◽  
2013 ◽  
Vol 60 (3) ◽  
pp. 437-441
Author(s):  
Lizandro Ciciliano Tavares ◽  
André Pich Brunes ◽  
Daniel Andrei Robe da Fonseca ◽  
Gizele Ingrid Gadotti ◽  
Lilian Madruga de Tunes ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Seed Germination ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Dry Weight ◽  
Seedling Development ◽  
Anaerobic Conditions ◽  
Flooded Rice ◽  
Randomized Design ◽  
Rice Seeds

Flooded rice cultivation promotes anaerobic conditions, favoring the formation of short chain organic acids such as acetic acid, which may be toxic to the crop. The objective of this study was to evaluate the effect of acetic acid on rice seeds coated with rice husk ash. The experiment was arranged in a 2 x 5 x 5 factorial randomized design, with two cultivars (IRGA 424 and BRS Querência), five doses of coating material (0, 2, 3,4 e 5 g kg-1 seed) and five concentrations of acetic acid (0, 3, 6, 9 and 12 mM), with 4 replications, totaling 50 treatments. The variables first count of germination, germination, shoot and root length, dry weight of shoots and roots were recorded. The results showed that coating rice seeds with rice husk ash up to 5 g kg-1 seed does not influence the performance of rice seeds of cultivars IRGA 424 and BRS Querência when exposed to concentrations of 12 mM acetic acid. The presence of acetic acid in the substrates used for seed germination reduced the vigor and viability of seeds of cultivars IRGA 424 and BRS Querência, as well as seedling development, affecting mainly the roots of BRS Querência.

scholarly journals Industrial Wastes in Soil Improvement

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
G. V. Rama Subbarao ◽  
D. Siddartha ◽  
T. Muralikrishna ◽  
K. S. Sailaja ◽  
T. Sowmya
Keyword(s):  
Fly Ash ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Cost Effective ◽  
Dry Weight ◽  
Soil Improvement ◽  
Geotechnical Properties ◽  
Point Of View ◽  
Industrial Wastes ◽  
Engineering Structures

Soil existing at a particular site may not be appropriate for construction of engineering structures. The present study made an attempt to enhance the geotechnical properties of a soil replaced with industrial wastes having pozzolanic value like rice husk ash (RHA) and fly ash (FA). Soil is replaced with RHA in 2%, 4%, and 6% to dry weight of soil. It is observed that soil replaced with 4% RHA is the optimum for the soil used in this study from geotechnical point of view. To know the influence of fly ash, soil is further replaced with 4% FA along with 4% RHA. It is found that results of soil replacement by both RHA and FA proved to be soil modification and not the improvement. Hence, a cost-effective accelerator like lime is used for further replacing the above soil-4%, RHA-4% FA mix. The optimum lime content is found to be 4%.

scholarly journals PENGARUH UMUR PANEN TERHADAP VIABILITAS BENIH SERTA HUBUNGANNYA DENGAN PRODUKSI TERNA SAMBILOTO (Andrographis paniculata Nees

2020 ◽  
Vol 13 (1) ◽  
pp. 21
Author(s):  
DEVI RUSMIN ◽  
MELATI, S MELATI, S ◽  
WAHYUNI WAHYUN ◽  
SUKARMAN SUKARMAN
Keyword(s):  
Seed Germination ◽  
Seed Viability ◽  
Dry Weight ◽  
Andrographis Paniculata ◽  
Harvesting Time ◽  
Seed Maturity ◽  
The Relationship ◽  
Days After Anthesis ◽  
Herb Yield ◽  
Number Of Branches

ABSTRAK<br />Salah satu faktor yang berpengaruh terhadap viabilitas benih<br />sambiloto (Andrographis paniculata Nees) adalah waktu panen.<br />Berdasarkan permasalahan tersebut kegiatan ini dilakukan dengan tujuan<br />untuk mengetahui pengaruh umur panen terhadap viabilitas benih serta<br />hubungannya dengan produksi terna sambiloto. Percobaan dilakukan di<br />KP. Cimanggu dan Laboratorium, Balai Penelitian Tanaman Obat dan<br />Aromatik, dari Maret 2005 – Maret 2006. Percobaan disusun dalam<br />rancangan acak kelompok (RAK) dengan 10 perlakuan stadia umur<br />panen dan 4 ulangan. Stadia umur panen yang diuji yaitu 18, 21, 22, 23,<br />24, 25, 26, 27, 28, dan 29 hari setelah antesis (HSA). Variabel yang<br />diamati yaitu mutu benih (daya berkecambah benih, kecepatan<br />berkecambah), pertumbuhan tanaman (tinggi tanaman, jumlah cabang),<br />serta produksi terna (bobot basah tanaman, bobot kering daun, dan bobot<br />kering batang). Hasil penelitian menunjukkan bahwa: (1) Umur panen<br />benih berpengaruh terhadap daya berkecambah benih dan kecepatan<br />berkecambah benih sambiloto; daya berkecambah dan kecepatan<br />berkecambah tertinggi didapatkan pada umur panen benih 22 dan 21 HSA<br />(67,00 dan 55,00)%; sedangkan daya berkecambah yang terendah<br />diperoleh pada umur panen 18 HSA (23,50)%, (2) Umur panen benih<br />berpengaruh terhadap tinggi tanaman dan jumlah cabang pada tanaman<br />umur 1 bulan. Tinggi tanaman dan jumlah cabang tertinggi berturut-turut<br />didapatkan pada perlakuan umur panen benih 27 dan 26 HSA (39, 63<br />dan 36,58 cm serta 16,71 dan 16,61 buah); dan (3) Umur panen benih<br />berpengaruh terhadap produksi terna (bobot basah tanaman, bobot kering<br />daun, bobot kering batang) pada umur 3 bulan. Bobot basah tanaman,<br />bobot kering daun, serta bobot kering batang tertinggi didapatkan pada<br />perlakuan umur panen benih 27 HSA (291,25, 28, 27 dan 28,86)g. Bobot<br />basah tanaman, bobot kering daun, serta bobot kering batang terendah<br />didapatkan pada perlakuan 18 HSA (217,09, 22,10 dan 20,24)g. Umur<br />panen benih tidak berpengaruh terhadap jumlah cabang pada umur 3<br />bulan.<br />Kata kunci : Sambiloto, Andrographis paniculata Nees, umur panen,<br />viabilitas, produksi, Jawa Barat<br />ABSTRACT<br />The influence of harvesting time on the seed viability and<br />the  relationship  with  herb  yield  of  king  bitter<br />(Andrographis paniculata Nees)<br />One of the main factors influencing the viability of king bitter<br />(Andrographis paniculata Nees) is appropriate harvesting time. Based on<br />this problem a research was conducted to study the relationship between<br />seed maturity and seed viability, and herb yield of king bitter. The research<br />was conducted at Cimanggu Experimental Station and in the laboratory of<br />Indonesian Medicinal and Aromatic Crops Research Institute (IMACRI)<br />from March 2005 to March 2006. The experiment was arranged in a<br />randomized block design with 10 seed maturity stages and 4 replications.<br />Maturity seed tested was 18, 21, 22, 23, 24, 25, 26, 27, 28 and 29 days<br />after anthesis. The observations were made on seed quality (percentage of<br />seed germination, and rate of seed germination), plant growth (plant<br />height, number of branches) and herb yield (fresh herb weight, leaf dry<br />weight, and stem dry weight). The results of experiment indicated that (1)<br />seed maturity affected seed germination, and rate of seed germination of<br />king bitter; the highest seed germination and germination rate were<br />achieved by seeds harvested at 21 and 22 days after anthesis, (2) stage of<br />seed harvesting affected on the plant height and number of branches at 1<br />month after planting. The highest plant height and number of branches<br />were found on the treatments of seeds harvested at 26 and 27 days after<br />anthesis, they were 39.63 and 36.58 cm and 16.71 and 16.61; (3) seed<br />maturity also affected herb production, such as wet weight of plants, dry<br />weight of leaf and dry weight of steam at 3 moths after planting. Wet<br />weight of plant, dry weight of leaf and dry weight of stem were achieved<br />at the treatments of seeds harvested at 27 days after anthesis, they were<br />291.25, 28.27 and 28.86 g. The lowest of wet of plant weight, dry weight<br />of leaf and dry weight of stem were found on the seeds harvested at 18<br />days after anthesis. They were 217.09, 22.10 and 20.24 g. Moreover, the<br />stage of harvesting did not influence the number of branches at 3 months<br />after planting.<br />Key words: King bitter, Andrographis paniculata Nees, seed maturity,<br />viability, production, West Java

scholarly journals The impact of temperature patterns during storage of Scots pine and Norway spruce seeds on their germination and fungal infection rates

2021 ◽  
Vol 182 (1) ◽  
pp. 157-167
Author(s):  
M. A. Nikolaeva ◽  
E. Yu. Varentsova ◽  
G. F. Safina
Keyword(s):  
Seed Germination ◽  
Seed Viability ◽  
Seed Storage ◽  
Pathogenic Fungi ◽  
Forest Tree ◽  
Ex Situ ◽  
Seed Infection ◽  
Germination Capacity ◽  
Long Term Storage ◽  
The Impact

Relevance of the study. One of the ways to maintain the genetic diversity of forest-forming species is to preserve highquality seed material ex situ. However, the relationship between the diversity of pathogenic mycobiota and the duration and methods of forest tree seed storage remains underexplored. The results of research into this problem can be used in forest seed production and forest phytopathology.Materials and methods. For our study we used seeds ofРinus sylvestris L. and Picea abies (L.) Karst. of the orthodox type, harvested in the period of 1996–2011 and stored under different temperatures: +20°С, +4°С, –18°С, and in liquid nitrogen vapor (–182°С) since 2011. Prior to their storage, seed samples were dried to a moisture content of 4.2–4.4% and hermetically packed. Seed germination was tested before and after three, five and eight years of storage, following GOST 13056.6-97 standards. The level of seed infection and the composition of pathogenic fungi were assessed.Results. After eight years of storage at +20°С, pine and spruce seed germination capacity decreased by 13–60%, depending on the year of harvesting. Seed storage at –18°С and –182°С allowed us to prevent seed infection and preserve seed viability. In most cases, the germination energy and germination capacity were negatively correlated with the level of seed infection. The diversity of pathogenic (mold) fungi on the surface of seeds was represented by ten genera; the most common were saprotrophs: Aspergillus P. Micheli, Penicillium Link, Rhizopus Ehrenb., Scopulariopsis Bainier.Conclusion. At the present stage of research, the success of seed storage at low and ultralow temperatures was demonstrated. We recommend cryopreservation for the long-term storage of improved and valuable seeds.

scholarly journals Primed Lettuce Seeds Exhibit Increased Sensitivity to Moisture Content During Controlled Deterioration

HortScience ◽  
2007 ◽  
Vol 42 (6) ◽  
pp. 1436-1439 ◽  
Author(s):  
H.J. Hill ◽  
Jesse D. Cunningham ◽  
Kent J. Bradford ◽  
A.G. Taylor
Keyword(s):  
Moisture Content ◽  
Elevated Temperatures ◽  
Seed Viability ◽  
Seed Storage ◽  
Seed Priming ◽  
Storage Conditions ◽  
Seed Moisture Content ◽  
Moisture Contents ◽  
Lettuce Seeds ◽  
Rate Of Decline

The Ellis-Roberts seed viability equation is used to predict seed survival after storage at specified temperatures and moisture contents. Seed priming, which can break dormancy and accelerate germination, can also reduce seed storage life. Because primed seeds were not used in developing the Ellis-Roberts equation, the reciprocal nature of specific seed moisture content (MC, fresh weight basis) and temperatures that applies to nonprimed lettuce (Lactuca sativa L.) seeds may not apply to primed seeds. To determine how priming affects lettuce seeds in relation to the viability equation, an experiment was conducted using two cultivars, ‘Big Ben’ and ‘Parris Island Cos’. Seeds primed in polyethylene glycol 8000 (–1.45 MPa, 24 h at 15 °C) and nonprimed seeds were first adjusted to 6% and 9% moisture contents and then stored at 48 and 38 °C for up to 30 days, respectively. These storage conditions (6% MC and 48 °C; 9% MC and 38 °C) were predicted by the viability equation to result in equal longevities. Subsequent viability assays at 20 °C revealed that nonprimed seeds in both storage environments exhibited similar losses in viability over time, thus validating the Ellis-Roberts equation and the use of these conditions to apply different but equal aging stress. Primed seeds of both cultivars deteriorated faster than nonprimed seeds as expected. However, primed seeds did exhibit different rates of deterioration between the storage environments. Primed seeds stored at 9% MC and 38 °C deteriorated faster than primed seeds stored at 6% MC and 48 °C. The rate of decline in probit viability percentage was three times greater in primed ‘Big Ben’ seeds stored at 9% MC and 38 °C than for those stored at 6% MC and 48 °C (–1.34 versus –0.26 probits per day, respectively). ‘Parris Island Cos’ seeds stored at 9% MC and 38 °C had twice the rate of deterioration that those stored at 6% MC and 48 °C (–1.19 and –0.49 probits per day, respectively). The results indicate that primed lettuce seeds were more sensitive to the adverse effects of higher seed MC than were nonprimed seeds during storage at elevated temperatures.

scholarly journals Phytoremediation of Pb Spiked Soils Amended with Iron Impregnated Rice Husk Ash Using Ricinus communis L. (Castor bean)

2019 ◽  
Vol 1 (3) ◽  
Author(s):  
Boda Ravi Kiran ◽  
M.N.V. Prasad
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Ricinus Communis ◽  
Low Cost ◽  
Dry Weight ◽  
Weight Basis ◽  
Fertility Treatment ◽  
Chlorophyll Contents ◽  
Ricinus Communis L ◽  
Efficient Adsorbent

Heavy metals pose a serious risk to the environment and living biota. Pot studies were carried out to determine the competence of Fe-coated rice husk in Pb spiked soils vegetated with Ricinus communis. Physicochemical properties of Fe- coated rice husk ash (Fe-RHA) were characterized on dry weight basis. Pot experiments were carried out with seedlings of R.communis for 60 days amended with Fe-RHA (0, 2.5% and 5% w/w) and Pb(NO3) [0, 400 and 800 mg kg−1]. Addition of Fe-coated rice husk ash to Pb cntaminated soils improved soil pH and fertility. Treatment with 5% Fe-RHA decreased Pb accumulation in roots by 84%. Addition of Fe-RHA significantly (p<0.05) increased plant physiological parameters such as height, leaf diameter, nodes, and leaf number by 64%, 49%, 62% and 66% and chlorophyll contents (12–29%) compared to unamended plants. Our findings conclude that Fe-RHA is a low-cost, environmentally friendly and efficient adsorbent for stabilization of Pb spiked soils.

scholarly journals Uji Daya Simpan Benih Jengkol (Pithecellobium Lobatum) Dengan Menggunakan Beberapa Media Simpan

2016 ◽  
Vol 4 (2) ◽  
pp. 69
Author(s):  
Fitri Lestari Manurung ◽  
Melya Riniarti ◽  
Duryat .
Keyword(s):  
Rice Husk ◽  
Storage Time ◽  
Seed Viability ◽  
Seed Storage ◽  
Significant Treatment ◽  
Storage Media ◽  
Effective Media ◽  
Bartlett Test ◽  
Media Storage ◽  
Germinated Seeds

Jengkol (Pithecellobium lobatum) is one of MPTs that is included of Fabaceae Family.  Jengkol seed is counted as recalcitrant, which is could not defend it is viability when it is stored at low temperature and humidity.  The study aims were to determine the effect of storage time and storage media to storability of jengkol seed, storage media effective to  maintain the jengkol seed viability, and the interaction between the storage media and the storage time to jengkol seed.  The reseach design of factorial (3 x 4) in a completely randomized was employed as a research method.  The first factor was the storage time (T) which was consisted of T0 (without storage), T1 (2 weeks of storage), T2 (4 weeks of storage), and T3 (6 weeks of storage). Second factor was storage media (M) which was consisted of M0 (without storage media), M1 (sawdust storage media), and M2 (rice husk storage media).  For each combination treatment was repeated 3 times.  Each unit of experiments consisted of 40 seeds.  The observed variables were germinated seeds in storage, the number of germinated seeds, avarage day to germination and germination power.  Bartlett test was used to figure out the homogenity of datas.  Varians analysis was at least one used to see if there was at least one significant treatment. The smalles significant differences test was used as further test.  The entire data were tested on 5% significant level. The results showed that storage of jengkol seed using rice husk for storage media with storage time of 6 weeks gave the best effect for maintaining the shelf life of the seeds.  The most effective media to maintain the viability of jengkol seeds is rice husk which can defend the jengkol seeds viability up to 6 weeks of storage.  Keywords : jengkol, germination, storage media, storage time

scholarly journals Suficiência amostral para cravina de jardim cultivada em diferentes substratos

2016 ◽  
Vol 22 (1) ◽  
pp. 63
Author(s):  
Sidinei José Lopes ◽  
Marília Milani ◽  
Alessandro Dal´Col Lúcio ◽  
Lindolfo Storck
Keyword(s):  
Confidence Interval ◽  
Sample Size ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Growth Parameters ◽  
Bootstrap Resampling ◽  
Flower Buds ◽  
Production Parameters ◽  
Great Performance ◽  
D 20

The cravina is an excellent plant to build up gardens due to its early flowering, abundant flowering and great performance in spring and autumn. The objective was to estimate the sample size for plant chinese pink, grown on different substrates, and check the variability of the sample size between growth parameters and production and substrates. They used seven treatments (substrates): S1 = 50% soil + 50% rice husk ash; S2 = 80% soil + 20% earthworm castings; S3 = 80% rice husk ash + 20% earthworm castings; S4 = 40% soil + 40% rice husk ash + 20% earthworm castings; S5 = 100% peat; S6 = 100% commercial substrate Mecplant®; S7 = 50% peat + 50% rice husk ash, with 56 repetitions each, totaling 392 plants of garden pink, which was evaluated in 17 of growth and production parameters. The methodology used to bootstrap resampling, with replacement, for each character within each substrate with predetermined error: 5, 10, 20 and 40% of the average (D%). To a 95% confidence interval, with D = 20%, the substrate 50% soil and 50% of rice husk ash had the largest sample size 11 characters; when comparing the characters , the number of flower buds had the highest sample size on average 113 plants. Using samples of 44 plant chinese pink for commercial substrate Mecplant® meet the lower precisions or equal to 20% for all variables. There is variation in sample size in relation to the substrate used and the variable evaluated in chinese pink plants.

scholarly journals PEMBERIAN ABU SEKAM PADI DAN JERAMI PADI UNTUK PERTUMBUHAN SERTA SERAPAN TANAMAN JAGUNG MANIS (Zea Mays L.) PADA TANAH ULTISOL DI KECAMATAN RANTAU SELATAN

2020 ◽  
Vol 6 (2) ◽  
pp. 12-18
Author(s):  
Fitra Syawal Harahap ◽  
Hilwa Walida
Keyword(s):  
Plant Height ◽  
Rice Straw ◽  
Rice Husk ◽  
Zea Mays L ◽  
Sweet Corn ◽  
Rice Husk Ash ◽  
N Uptake ◽  
Dry Weight ◽  
P Uptake ◽  
Dose Levels

Provision of Rice Husk Ash and Rice Straw for Growth of Sweet Corn (Zea Mays L) in Ultisol Land in Rantau Selatan District Labuhan Batu District aims to determine the effect of various types of rice husk ash and rice straw for growth and nutrient uptake of Sweet Corn experimental methods. The method used in this study was compiled in a factorial randomized block design consisting of 2 factors with 3 replications. Treatment I: Giving rice husk ash (M) with 4 dose levels (g / 5 kg BTKO), namely: M0 (0), M1 (10 ), M2 (20) and M3 (30) and Treatment II: Giving rice straw (K) compost with 4 dose levels (g / 5 kg BTKO), namely: K0 (0), K1 (25), K2 (50), K3 (75). The data obtained were statistically analyzed based on analysis of variance on each observed variable that was measured and tested further for real treatment using the Duncan Multiple Range Test (DMRT) at the 5% level. The parameters measured consist of. Plant height (cm), Plant Dry Weight, Plant U uptake, Plant U Uptake. The results of this study indicate that the administration of rice straw compost has a significant effect in increasing plant height, plant dry weight, N uptake and P uptake while rice husk ash has a significant effect in increasing plant N uptake but has no significant effect in increasing plant height, plant dry weight and P uptake of plants. Keywords: husk ash, rice straw, growth, nutrient uptake, corn, Rantau selatan 

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