scholarly journals Control of Seed-borne Disease (Octomeles Sumatrana) during Storage

2020 ◽  
Vol 8 (2) ◽  
pp. 133-144
Author(s):  
NFN Nurhasybi ◽  
◽  
Tati Suharti ◽  
Keyword(s):  
Raw Materials ◽  
Seed Viability ◽  
Seed Storage ◽  
Forest Tree ◽  
Storage Room ◽  
Natural Fungicide ◽  
Alternative Species ◽  
Seed Handling ◽  
And Control ◽  
And Storage

The forest tree species that are widely grown to produce pulp and paper raw materials are Acacia spp. and Eucalyptus spp. One alternative species is binuang bini (Octomeles sumatrana) which can be developed for plantations. To maintain high seed viability, it is necessary to know the handling of seeds and control of seed-borne diseases during storage. The purpose of this study was to determine the method of the effective technique to control the seed-borne diseases of binuang bini during seed storage. The techniques for Seed disease kontrol methods in seed storage are carried out using chemical and natural fungicide. The results showed that the pure live seed was influenced by a single factor of fungicide and storage room, interactions between fungicides and storage room, interactions between fungicides and storage periods as well as interactions between fungicides and storage space and storage periods. Seed handling of binuang bini can be conducted effectively and efficiently by storing the seed in refrigerator for 3 months without using fungicides, but it will be better if the seed is given benomil fungicide and stored in airconditioned room (temperature of 18℃-20℃ and relative humidity of 50%-60 %).

Seed storage and germination studies of Garcinia talbotii Raizada ex Santapau seeds - an endemic tree from Western Ghats of India

2016 ◽  
Vol 23 (2) ◽  
pp. 73-78
Author(s):  
T. Sabu ◽  
P.S. Shameer ◽  
Chitra Rajeswary ◽  
N. Mohanan ◽  
C. Anilkumar
Keyword(s):  
Ex Situ Conservation ◽  
Storage Temperature ◽  
Seed Viability ◽  
Seed Storage ◽  
Ex Situ ◽  
Hermetic Storage ◽  
Western Ghats Of India ◽  
Relationship Of ◽  
The Relationship ◽  
And Storage

Seeds of Garcinia talbotii remained viable hardly for two weeks in open room conditions. As part of ex-situ conservation of Garcinia talbotii, seeds longevity was studied since seeds are the main propagule. For this, the relationship of seed viability with respect to different moisture content and storage temperature were analyzed. Seed storage behaviour is also investigated. Being recalcitrant, seeds are desiccation sensitive as well as chilling sensitive. During hermetic storage of seeds at 300C /70 % RH seeds retained viability about 6 months.

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 Temperature and Relative Humidity Govern Germination and Storage of Gladiolus Seed

HortScience ◽  
1991 ◽  
Vol 26 (8) ◽  
pp. 1054-1057 ◽  
Author(s):  
W.J. Carpenter ◽  
G.J. Wilfret ◽  
J.A. Cornell
Keyword(s):  
Relative Humidity ◽  
Seed Treatment ◽  
No Reduction ◽  
Germination Rate ◽  
Seed Viability ◽  
Seed Storage ◽  
Moisture Contents ◽  
Seed Moisture ◽  
Germination Temperature ◽  
And Storage

Gladiolus (G. grandiflorus) seed germination was light-independent, but temperature influenced the germination rate. Constant 20C promoted higher total germination (97%), fewer days (4.3) to 50% of final germination, and shorter span of days (4.8) between 10% and 90% germination than other constant temperatures, although similar results were achieved by alternating 12-h cycles of 20 to 25C. Total germination was unchanged after seed treatment for 7 days at 10 to -20C, but longer germination periods were required after treatments below -10C. Reducing seed moisture contents from 11.8% to 4.2% caused no reduction in total germination, but moisture contents below 6.6% delayed achieving 50% of final germination and extended the periods from 10% to 90% of germination. Temperature and relative humidity (RH) during storage were important in retaining seed viability, with RH having a larger effect. Smallest declines in total germination during 12 months of storage occurred at 11% and 33% RH at 15C. The statistical analysis estimated the optimum seed storage at 14C and 26% RH.

scholarly journals Kompos dari Kulit Singkong Usaha Pemerdayaan Limbah Lokal

2020 ◽  
Vol 19 (3) ◽  
Author(s):  
Sismita Sari Mita
Keyword(s):  
Soil Structure ◽  
Crop Residues ◽  
Raw Materials ◽  
Low Cost ◽  
Absorption Capacity ◽  
Waste Utilization ◽  
Water Absorption Capacity ◽  
And Control ◽  
And Storage ◽  
Storage Processes

Cassava leather waste is one of the waste that has great potential can be used as compost fertilizer. Compost can be used as a substitute of artificial fertilizer at a very low cost. Compost works in the improvement of soil structure, soil texture, aeration, and increased soil water absorption capacity. The objective of this program is to make cassava leather compost as a solution of waste utilization from abundant crop residues available in partner villages. The method used in this research is descriptive qualitative, namely the success of composting is assessed based on the color, aroma, and texture produced. activities starting from the preparation of raw materials of cassava leather, enumeration using enumerators, preparation and breeding activator, composting mealui stages; stacking, EM4 delivery, reversing, maturation, screening, maintenance and control in composting, packaging and storage processes. The result showed that mature cassava compost had nearly 50% shrinkage, had crumbly texture when held, moist, blackish brown color, and no smell (smell the ground).

Seed survival in Chilean Nothofagus in response to desiccation and storage

2005 ◽  
Vol 15 (2) ◽  
pp. 113-123 ◽  
Author(s):  
Pedro León-Lobos ◽  
Richard H. Ellis
Keyword(s):  
Moisture Content ◽  
Seed Quality ◽  
Seed Viability ◽  
Seed Storage ◽  
Forest Tree ◽  
Ex Situ ◽  
Hermetic Storage ◽  
Moisture Contents ◽  
Tree Seeds ◽  
Initial Seed

Nothofagus alpina,N. obliqua,N. glauca,N. leonii,N. dombeyiandN. pumilioseeds exhibited consistent, albeit slight, sensitivity to extreme desiccation, but nevertheless maintained viability at low moisture contents and cool temperatures (–10° to –20°C) over 2 years.Nothofagus alpina,N. obliqua,N. glauca,N. leoniiandN. dombeyiconformed to the seed viability equation of Ellis and Roberts; sensitivity of longevity to temperature was quantitatively similar to that of crop seeds, sensitivity to moisture was somewhat less, and a low-moisture-content limit to the equation was detected at 4.8% moisture content in hermetic storage at 65 °C, and possibly similar moisture contents at 30–40°C. These five species show orthodox seed storage behaviour. Therefore,ex-situconservation of theseNothofagusspecies in seed banks is possible, but the quality of seed lots collected requires attention. Seed storage behaviour was not defined inN. pumilio: initial seed quality was poor and loss of viability was detected over 2 years at 0°, –10° and –20°C at 2.7% moisture content, but not at 5.2%. The results confirm that the economy of nature in seed storage physiology extends to forest tree seeds, but the repeated observation of reduced sensitivity of longevity to moisture in forest tree seeds requires further investigation.

scholarly journals Role of Relative Humidity in Processing and Storage of Seeds and Assessment of Variability in Storage Behaviour inBrassicaspp. andEruca sativa

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
A. Suma ◽  
Kalyani Sreenivasan ◽  
A. K. Singh ◽  
J. Radhamani
Keyword(s):  
Relative Humidity ◽  
Seed Viability ◽  
Seed Storage ◽  
Eruca Sativa ◽  
Seed Moisture Content ◽  
Seedling Vigour ◽  
Seed Moisture ◽  
Processing And Storage ◽  
And Storage

The role of relative humidity (RH) while processing and storing seeds ofBrassicaspp. andEruca sativawas investigated by creating different levels of relative humidity, namely, 75%, 50%, 32%, and 11% using different saturated salt solutions and 1% RH using concentrated sulphuric acid. The variability in seed storage behaviour of different species ofBrassicawas also evaluated. The samples were stored at40±2°Cin sealed containers and various physiological parameters were assessed at different intervals up to three months. The seed viability and seedling vigour parameters were considerably reduced in all accessions at high relative humidity irrespective of the species. Storage at intermediate relative humidities caused minimal decline in viability. All the accessions performed better at relative humidity level of 32% maintaining seed moisture content of 3%. On analyzing the variability in storage behaviour,B. rapaandB. junceawere better performers thanB. napusandEruca sativa.

scholarly journals Sensor Data Analysis On Monitoring And Control System Of Temperature And Humidity Based On Android In Soybean Seed Storage Room Using Nodemcu

JAICT ◽  
2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Sindung HW Sasono
Keyword(s):  
Control System ◽  
Data Analysis ◽  
Soybean Seed ◽  
Seed Storage ◽  
Sensor Data ◽  
Monitoring And Control ◽  
Storage Room ◽  
Temperature State ◽  
Temperature And Humidity ◽  
And Control

soybean seeds may be damaged during storage time. Temperature and humidity of soybean seed storage room, is one of the external factors of damage to the seed. The system consists of monitoring and control temperature and humidity in some rooms used as soybean seed storage room samples. This study discusses and perform sensor data analysis using several types of temperature and humidity sensors based on Internet of Things. Sensor nodes generate data and processed by a microcontroller NodeMCU ESP8266, and the results data is then transmitted by the Internet network using MQTT broker and stored in the database. Results data is then analyzed to monitor the condition of soybean seed storage room. SHT30 sensor has the most excellent temperature accuracy of 98, 21%. DHT22 sensor has the most excellent moisture accuracy of 95.74%. Data sending to the database has a good level of dataloss category for node 1 is 3.39%, 4.33% for node 2, and 3.22% for node 3. Air conditioner control system using Android can keep the room temperature state in the range of 18-23oC and humidity of 40-60% with an air conditioning remote control setting at 20oC on an area of 36 m2.

scholarly journals Conditioning and coating of Urochloa brizantha seeds associated with inoculation of Bacillus subtilis1

2019 ◽  
Vol 49 ◽  
Author(s):  
Antônio Emilio Rodrigues Manrique ◽  
Rita de Cássia Lima Mazzuchelli ◽  
Ademir Sergio Ferreira Araujo ◽  
Fabio Fernando de Araujo
Keyword(s):  
Plant Growth ◽  
Growth Promotion ◽  
Seed Storage ◽  
Forage Plants ◽  
Technological Advances ◽  
Randomized Design ◽  
Urochloa Brizantha ◽  
Shoot Mass ◽  
And Control ◽  
And Storage

ABSTRACT Technological advances for improving the sowing stage of forage plants are important because, besides increasing the operation efficiency, they may also positively affect the plant growth. This study aimed to evaluate the inoculation of Bacillus subtilis in Urochloa brizantha seeds, using coating, physiological conditioning and storage procedures, as well as to observe its effects on seed storage and plant growth. A completely randomized design, in a 2 × 3 × 5 + 1 factorial scheme [two inoculation procedures (coating and conditioning), three inoculants (B. subtilis AP-3, B. subtilis PRBS-1 and without bacteria), five storage periods (0, 30, 60, 90 and 120 days) and control (bare seeds)], with five replicates, was used. Two lots of U. brizantha seeds were used, characterized as being of higher and lower viability. After the treatments, part of the seeds was employed to evaluate the plant growth promotion in a greenhouse, during 180 days, while the remaining portion was stored at a temperature of 25 ºC, with the seed germination being evaluated every 30 days, for 120 days. The physiological conditioning showed the best performance in the evaluations carried out for U. brizantha seeds with B. subtilis. The coating and conditioning of the U. brizantha seeds with lower viability, both with and without the inoculation of bacteria, increases the shoot mass of plants after 180 days of growth.

Prediction of seed longevity: a modification of the shape of the Ellis and Roberts seed survival curves

1999 ◽  
Vol 9 (1) ◽  
pp. 63-73 ◽  
Author(s):  
A. Mead ◽  
D. Gray
Keyword(s):  
Storage Time ◽  
Seed Viability ◽  
Seed Storage ◽  
Probit Model ◽  
Storage Conditions ◽  
Model Data ◽  
Germplasm Collections ◽  
Carrot Seed ◽  
And Storage ◽  
Proper Account

AbstractThe prediction of the viability of stored seeds is important both for the management of germplasm collections and for the management of commercial seed production and storage. The Ellis and Roberts model for seed viability during storage is examined, and an inadequacy of the model highlighted. A modification is proposed, based on the ‘control mortality’ probit model developed for insecticide bioassays, to take proper account of variation in initial viability. This new ‘control viability’ model, relating seed viability to storage time, is fitted to data from a carrot seed storage experiment and found to fit well for a range of storage environments. A relationship, similar to that proposed by Ellis and Roberts for the effects of storage conditions on the rate of loss of viability, is fitted to the estimated rates from this new model. Data from a second carrot seed storage experiment are used to validate this relationship.

scholarly journals Effect of Desiccation and Storage Environment on Longevity of Ehretia Cymosa Thonn. Seeds.

2020 ◽  
Author(s):  
Peter Murithi Angaine ◽  
Stephen Muriithi Ndungú ◽  
Alice Adongo Onyango ◽  
Jesse Omondi Owino
Keyword(s):  
Moisture Content ◽  
Storage Temperature ◽  
Seed Viability ◽  
Seed Storage ◽  
Storage Duration ◽  
Seed Moisture Content ◽  
Seed Moisture ◽  
Storage Behavior ◽  
Storage Studies ◽  
And Storage

Abstract Background: Globally, forestry faces challenges in the availability of seeds due to limited knowledge on seed handling of various species. Forestry seeds are constantly being reviewed and classified as either recalcitrant, intermediate, or orthodox based on their storage behavior. It is essential to understand the tree seed storage behavior to maintain seed viability and thus minimize seed losses. There is scanty literature combining factors of seed moisture content (6%, 9%, 12%, 15%, and 20%), seed storage temperature (20oC, 5oC and -20oC), seed storage duration (1, 4, 9 and 12 months), and germination in different sites with varying environmental variables. Ehretia cymosa is important in the Afromontane forestry landscape as a medicinal, rehabilitation, and conservation species. This study conducted desiccation and storage studies and their influence on the viability of E. cymosa seeds. The study sought to determine the optimum conditions for the storage of Ehretia cymosa that maintains viability. Results: This study observed that E. cymosa dried to seed moisture content of 6%, stored for 12 months at 20oC and sown in the laboratory had the highest germination performance (27.6 ± 3.18%) (p<0.05). Conclusion: This confirms that E.cymosa seeds exhibit orthodox storage behavior. The authors recommend longer storage studies (>12months) to determine the actual longevity of the seeds of this species. The significance of these results would be useful for foresters and farmers that would need to use this species for various purposes.

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