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 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 PENGARUH PENAMBAHAN ABU SEKAM PADI (RICE HUSK ASH) DENGAN PROPORSI YANG BERBEDA TERHADAP PERTUMBUHAN SELADAI AIR (Lactuca sativa L.)

2017 ◽  
Vol 11 (2) ◽  
pp. 1-8
Author(s):  
Tri Kurniastuti ◽  
Palupi Puspitorini ◽  
Tyas Nyonita Punjungsari
Keyword(s):  
Plant Height ◽  
Rice Husk ◽  
Lactuca Sativa ◽  
Rice Husk Ash ◽  
Dry Weight ◽  
Root Dry Weight ◽  
Lactuca Sativa L ◽  
Randomized Design ◽  
Nutritional Needs ◽  
Height Increase

Lettuce vegetables (Lactuca sativa L.) much needed by the community to meet the nutritional needs, but lettuce production is still low because of low productivity. Increasing the quality and quantity of vegetables grown on polybags is by fertilizing and arranging the composition of the planting medium. Provision of fertilizer aims to increase the supply of nutrients needed plants to boost the production and quality of crops. Fertilizer is to provide or add nutrients that plants need. However, fertilizer will tend to cause high production value and less appropriate with vegetable planting at home, therefore more optimized setting the composition of planting media. Planting media should be able to provide nutrients needed by plants. Farmers use plant residual organic materials such as rice husk as and cockpit for vegetable cultivation. The rice husk is the outermost part of the grain. The rice husk ash usually contains N 0.32%, P 0.15%, K 0.31%, Ca 0.96%, Fe 180 ppm, Mn 80.4 ppm Zn 14.10 ppm and pH 6, 8 which is expected to meet the needs of plant nutrients. The study was prepared using a complete randomized design with one factor that is the addition of planting media in the form of rice husk ash with the proportion of top soil and rice husk ash as follows: M1 (3: 1), M2 (2: 2), and M3 (1: 3). The observed variables were stem height, crown dry weight, and root dry weight. Data analysis used F Test 5% and continued with Duncan Multiple Range Test (DMRT) 5%. The results obtained at plant height of M3 (1: 3) gave the best result where there was a plant height increase of 40 cm from the first day of planting until the third day, the addition of rice husk ash did not affect the addition of root dry weight and dry weight of crown.

scholarly journals PENGARUH PENAMBAHAN ABU SEKAM PADI (RICE HUSK ASH) DENGAN PROPORSI YANG BERBEDA TERHADAP PERTUMBUHAN SELADAI AIR (Lactuca sativa L.)

2017 ◽  
Vol 11 (2) ◽  
pp. 1-8
Author(s):  
Tri Kurniastuti ◽  
Palupi Puspitorini ◽  
Tyas Nyonita Punjungsari
Keyword(s):  
Plant Height ◽  
Rice Husk ◽  
Lactuca Sativa ◽  
Rice Husk Ash ◽  
Dry Weight ◽  
Root Dry Weight ◽  
Lactuca Sativa L ◽  
Randomized Design ◽  
Nutritional Needs ◽  
Height Increase

Lettuce vegetables (Lactuca sativa L.) much needed by the community to meet the nutritional needs, but lettuce production is still low because of low productivity. Increasing the quality and quantity of vegetables grown on polybags is by fertilizing and arranging the composition of the planting medium. Provision of fertilizer aims to increase the supply of nutrients needed plants to boost the production and quality of crops. Fertilizer is to provide or add nutrients that plants need. However, fertilizer will tend to cause high production value and less appropriate with vegetable planting at home, therefore more optimized setting the composition of planting media. Planting media should be able to provide nutrients needed by plants. Farmers use plant residual organic materials such as rice husk as and cockpit for vegetable cultivation. The rice husk is the outermost part of the grain. The rice husk ash usually contains N 0.32%, P 0.15%, K 0.31%, Ca 0.96%, Fe 180 ppm, Mn 80.4 ppm Zn 14.10 ppm and pH 6, 8 which is expected to meet the needs of plant nutrients. The study was prepared using a complete randomized design with one factor that is the addition of planting media in the form of rice husk ash with the proportion of top soil and rice husk ash as follows: M1 (3: 1), M2 (2: 2), and M3 (1: 3). The observed variables were stem height, crown dry weight, and root dry weight. Data analysis used F Test 5% and continued with Duncan Multiple Range Test (DMRT) 5%. The results obtained at plant height of M3 (1: 3) gave the best result where there was a plant height increase of 40 cm from the first day of planting until the third day, the addition of rice husk ash did not affect the addition of root dry weight and dry weight of crown.

scholarly journals Accelerating Seed Germination and Juvenile Growth of Sorghum (Sorghum bicolor L. Moench) to Manage Climate Variability through Hydro-Priming

Atmosphere ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 419
Author(s):  
Siaka Dembélé ◽  
Robert B. Zougmoré ◽  
Adama Coulibaly ◽  
John P. A. Lamers ◽  
Jonathan P. Tetteh
Keyword(s):  
Seed Germination ◽  
Climate Variability ◽  
Germination Rate ◽  
Dry Weight ◽  
Seed Priming ◽  
Seedling Development ◽  
Hot Water ◽  
Crop Failure ◽  
Simple Method ◽  
Early Season

Agriculture in Mali, a country in Sahelian West Africa, strongly depends on rainfall and concurrently has a low adaptive capacity, making it consequently one of the most vulnerable regions to climate change worldwide. Since early-season drought limits crop germination, and hence growth, ultimately yield during rain-fed depending on production is commonly experienced nowadays in Mali. Germination and establishment of key crops such as the staple sorghum could be improved by seed priming. The effects of hydro-priming with different water sources (e.g., distilled, tap, rain, river, well water) were evaluated respectively for three priming time durations in tepid e.g., at 25 °C (4, 8, and 12 h) and by hot water at 70 °C (in contrast to 10, 20, and 30 min.) in 2014 and 2015. Seed germination and seedling development of nine sorghum genotypes were monitored. Compared to non-primed seed treatments, hydro-priming significantly [p = 0.01] improved final germination percentage, germination rate index, total seedling length, root length, root vigor index, shoot length, and seedling dry weight. The priming with water from wells and rivers resulted in significant higher seed germination (85%) and seedling development, compared to the three other sources of water. Seed germination rate, uniformity, and speed were enhanced by hydro-priming also. It is argued that hydro-priming is a safe and simple method that effectively improve seed germination and seedling development of sorghum. If used in crop fields, the above most promising genotypes may contribute to managing early season drought and avoid failure of seed germination and crop failure in high climate variability contexts.

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 In vitro seed germination and seedling development of Phaius tancarvilleae (L’Her.) Blume.

1970 ◽  
Vol 9 (9) ◽  
pp. 50-52 ◽  
Author(s):  
Bijaya Pant ◽  
Sumitra Shrestha ◽  
Shreeti Pradhan
Keyword(s):  
Acetic Acid ◽  
Seed Germination ◽  
Seedling Development ◽  
Naphthalene Acetic Acid ◽  
Ideal Condition ◽  
Ms Medium ◽  
Mass Propagation ◽  
Asymbiotic Seed Germination ◽  
Protocorm Formation

In vitro seed germination and seedling development of Phaius tancarvilleae (L’Her.) Blume. was carried out on 0.8%(w/v) agar solidified MS Medium (Murashige and Skoog, 1962) without hormones or supplemented with different concentration and combination of Naphthalene acetic acid (NAA) and 6-benzylaminopurine (BAP). MS medium supplemented with 0.5 mg/l of BAP was the most ideal condition for early seed germination, protocorm formation and development of seedlings. Germination started after 7 weeks of culture and complete seedlings were obtained after 24 weeks of culture. This protocol might be helpful for mass propagation of orchids by asymbiotic seed germination. Keywords: Orchid; Invitro; Protocorm; Media DOI: http://dx.doi.org/10.3126/sw.v9i9.5518 SW 2011; 9(9): 50-52

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 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 

scholarly journals Green Natural Rubber Composites Reinforced with Black/White Rice Husk Ashes: Effects of Reinforcing Agent on Film’s Mechanical and Dielectric Properties

Polymers ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 882
Author(s):  
Praewpakun Sintharm ◽  
Muenduen Phisalaphong
Keyword(s):  
Mechanical Properties ◽  
Dielectric Properties ◽  
Natural Rubber ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Composite Films ◽  
Dry Weight ◽  
Semiconducting Polymer ◽  
White Rice ◽  
Dispersing Agent

Green natural rubber (NR) composites reinforced with black rice husk ash (BRHA)/white rice husk ash (WRHA), using alginate as a thickening and dispersing agent and crosslinking by CaCl2, was developed to improve mechanical, chemical and dielectric properties of NR-based films by using a latex aqueous microdispersion process. A maximum of 100 per hundred rubbers (phr) of rice husk ashes (RHAs) could be integrated in NR matrix without phase separation. Mechanical properties of the composite films were considerably enhanced, compared to the neat NR film. The composite films reinforced with WRHA demonstrated relatively better mechanical properties than those reinforced with BRHA, whereas the composites filled with BRHA demonstrated higher elongation at break. The crosslinking by CaCl2 improved the film tensile strength but lowered the film elasticity. The reinforcement strongly improved chemical resistance of the composite films in toluene. The films are biodegradable in soil, with weight loss of 7.6–18.3% of the initial dry weight after 3 months. Dielectric constant and dielectric loss factors of the composite films were enhanced with RHAs loading. According to the obtained properties, the composites offer potential for further development as stretchable conductive substrate or semiconducting polymer films for electronic applications.

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