scholarly journals EFFECT OF STORAGE CONTAINERS AND SEED TREATMENTS ON SEED GERMINATION AND VIGOUR OF BLACK GRAM (VIGNA MUNGO (L.) HEPPER)

2020 ◽  
Vol 21 (supplement 1) ◽  
Author(s):  
J.Johnny subakar ivin ◽  
Y.Anbuselvam subakar ivin ◽  
M.Surendhar J.R. Jerish ◽  
M.Surendhar J.R. Jerish
Keyword(s):  
Shelf Life ◽  
Seed Quality ◽  
Seed Viability ◽  
Seed Storage ◽  
Wire Mesh ◽  
Monthly Interval ◽  
Black Gram ◽  
Neem Oil ◽  
The Poor ◽  
Vigour Index

One of the most important basic needs for higher agricultural production is quality seed, characterized by high viability and vigour. Maintenance of seed viability and vigour from Harvest till the next growing season is of the utmost importance in a seed production programme. During seed storage, qualitative and quantitative losses of up to 20% have been reported in India. The poor seed quality may also be due to the poor storability which is very often being decided by the internal and external factors. In pulses, the major cause for seed deterioration during storage is bruchid damage. In this context, evolving an improved storage strategy to prolong the shelf life of seeds under ambient storage conditions with easily available cost-effective resources was carried out. The experiment was conducted at the Department of Genetics and Plant Breeding, Faculty of Agriculture, Annamalai University, Annamalai nagar. Freshly harvested seeds of black gram cv. ADT 3 were cleaned and graded using BSS, 8x8 wire mesh sieve. Then seeds were dried under sunlight to bring the moisture content to required level (8.5%). The seeds were treated with Thiram @ 2g kg-1, Neem oil @ 10ml kg-1 and Malathion dust @ 200 mg kg-1. Two hundred and fifty grams of seeds from all treatments along with control were packed in two containers viz. cloth bag and polythene bag (700 gauges) with three replication and stored in at ambient temperature (30o c – 35o c) and relative humidity of 52-80%. Seed samples were drawn from each replication at monthly interval for assessing the viability and vigour. Germination test was conducted in between paper method and seedlings were evaluated on seventh day for vigour index bruchid infestation. The untreated seeds recorded lower germination per cent and vigour index after seven months of storage. There was no bruchid damage on seeds treated with neem oil @ 10ml kg-1 and thiram @ 2g kg-1. It was concluded that the shelf life of black gram seeds could be increased by

scholarly journals Effect of botanicals and insecticides seed treatment and containers on seed longevity of black gram under natural ageing conditions

2015 ◽  
Vol 7 (1) ◽  
pp. 328-334 ◽  
Author(s):  
N. Amruta ◽  
G. Sarika ◽  
Umesha Umesha ◽  
J. B. Maruthi ◽  
G. V. Basavaraju
Keyword(s):  
Seed Production ◽  
Seed Treatment ◽  
Seed Quality ◽  
Seed Viability ◽  
Dry Weight ◽  
Management Approach ◽  
Black Gram ◽  
Ambient Conditions ◽  
Emamectin Benzoate ◽  
Production Programme

Good storage is the basic requirement in seed production programme as maintenance of high seed viability and vigour from harvest to planting is of utmost importance in a seed production programme. Therefore, inexpensive, simple and practicable technology to prolong the shelf life of seeds under ambient condition is immensely needed. Hence, an experiment was carried out to study the effect of seed treatment with neem oil, nimbicidin, emamectin benzoate 5 SG, deltamethrin 2.8 EC, novuluron EC on black gram seed quality under ambient conditions. The seeds without any seed treatment were included as control. The treated and untreated seeds were stored in cloth bag and polylined cloth bag. The results revealed that, botanicals and emamectin benzoate seed treatments were significantly superior in controlling the storage insect and maintaining higher seed quality up to 10 months of storage when compared to control. Among the chemicals, the emamectin benzoate 5 SG @ 40 mg kg-1 of seed found better by recording significantly higher germination percentage (80.28), vigour index I (2124) and dry weight of seedlings (43.14 mg) and lower electrical conductivity (0.939 dSm-1) and seed damage (0.00 %) compared to control (78.78%, 2012, 38.90 mg, 0.942 dSm-1, respectively) at the end of 10th month of storage. The emamectin benzoate 5 SG and nimbicidintreated seeds stored in polylined cloth bags were considered as effective seed storage management approach in blackgram.

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.

Effect of Cone Storage on Pine Seed Storage Potential

1991 ◽  
Vol 15 (4) ◽  
pp. 216-221 ◽  
Author(s):  
F. T. Bonner
Keyword(s):  
Seed Quality ◽  
Germination Rate ◽  
Seed Viability ◽  
Seed Storage ◽  
Slash Pine ◽  
White Pine ◽  
Storage Container ◽  
Percent Germination ◽  
Pinus Taeda L ◽  
One Year

Abstract The effect of cone storage on seed viability during 5 years of storage at 35°F was tested with seeds from studies with loblolly (Pinus taeda L.), slash (P. elliottii Engelm.), longleaf (P. palustris Mill.), and eastern white (P. strobus L.) pines. Results showed that: (1) with the exception of slash pine, seeds from cones stored for the longer periods retained quality during storage better than seeds from cones that were stored only short periods; (2) all species exhibited slight, but statistically significant, decreases in seed quality after 3 years of storage, and with the exception of loblolly, more substantial decreases in germination rate at 5 years; (3) with the exception of eastern white pine, declining rates of germination indicated losses of seed quality at least one year before total percent germination decreased, and (4) slash pine seeds from cones in the center of 20-bushel crates performed better in storage than those from cones at the top of the crates or from cones stored in bags, but storage container made no difference for loblolly. South. J. Appl. For. 15(4):216-221

scholarly journals Effect of integrated nutrient management and spacing on seed quality parameters of black gram cv. Lbg-625 (rashmi)

2016 ◽  
Vol 8 (1) ◽  
pp. 340-345
Author(s):  
N. Amruta ◽  
P. J. Devaraju ◽  
Mangalagowri Mangalagowri ◽  
S. P. Kiran ◽  
H. P. Ranjitha ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Seed Quality ◽  
Dry Weight ◽  
Quality Parameters ◽  
Black Gram ◽  
Seedling Vigour ◽  
Nutrient Levels ◽  
Planting Geometry ◽  
Seedling Length ◽  
Vigour Index

A field experiment was conducted to assess the response of nutrient levels and spacing on seed quality attributes of black gram cv. LBG-625 (Rashmi). Experimental results revealed that fertilizer application of 50:100:100 + Black gram rhizobia (250 g ha-1) + PSB- Bacillus megaterium (250 g ha-1) recorded highest test weight (39.27 g), germination (90.60%), root length (15.77 cm), shoot length (13.43 cm), mean seedling length (29.20 cm), mean seedling dry weight (57.99 mg), seedling vigour index-I (2656), seedling vigour index-II (525), total dehydrogenase activity (0.998), protein content (23.16%), field emergence (86.56 %) lowest electrical conductivity (0.813 dSm-1) were superior over other fertilizer treatments. Among the planting geometry 60 x 10 cm recorded more germination per cent (90.48 %) compared to 45 x 10 cm (87.64 %) and 30 x 10 cm (86.91 %). Interaction of nutrient levels and spacing through the application of 50:100:100 + black gram rhizobia (250 g ha-1) + PSB- B. megaterium (250 g ha-1) with planting geometry 60 x 10 cm recorded more mean seedling length (34.40 cm), mean seedling dry weight (58.30 mg),and field emergence (90.24 %) lowest electrical conductivity (0.776 dSm-1) compared to control. The application of 50:100:100 + Black gram rhizobia (250 g ha-1) + PSB- B. megaterium (250 g ha-1) with planting geometry 60 x 10 cm were considered as seed quality improvement approach in blackgram, therefore conjunctive use of inorganic fertilizers and biofertilizer may be suggested for higher seed quality parameters along with overall betterment of crop.

scholarly journals Size grading Standardization of sieve size for grading of barnyard millet (Echinochloa frumentacea L.) MDU-1

2019 ◽  
Vol 11 (2) ◽  
pp. 524-527
Author(s):  
S. Suruthi ◽  
K. Sujatha ◽  
C. Menaka
Keyword(s):  
Dry Matter ◽  
Seed Quality ◽  
Quality Standards ◽  
Wire Mesh ◽  
Barnyard Millet ◽  
Sieve Size ◽  
Matter Production ◽  
Vigour Index ◽  
Echinochloa Frumentacea ◽  
Size Grading

Seed grading is an important practice for better crop and also useful in separation of quality seeds in a seed lot. The aim of grading is to improve the uniformity of the seed lot by removing seeds of the same species with low quality. The present study was carried out to find out the optimum sieve size for size grading of seeds of barnyard millet (Echinochloa frumentacea L.) MDU1. The effect of seed size on physiological parameters were evaluated using BSS 10×10, BSS12×12 and BSS14×14 wire mesh sieves along with control. The barnyard millet seeds graded with BSS12×12 recorded higher seed recovery (76.67%) than other sieves used with required germination (92%), 1000 seed weight (3.9g), root length (14.1cm), shoot length (8.45cm), dry matter production (0.027g/10 seedlings) and vigour index (1983). Hence, seeds of barnyard millet MDU1 could be size graded using BSS12×12 sieve for more seed recovery with required seed quality standards as compared to BSS 10×10, BSS14×14 and ungraded seeds.

scholarly journals Abscisic acid-determined seed vigour differences do not influence redox regulation during ageing

2019 ◽  
Vol 476 (6) ◽  
pp. 965-974 ◽  
Author(s):  
Christina Schausberger ◽  
Thomas Roach ◽  
Wolfgang Stöggl ◽  
Erwann Arc ◽  
William E. Finch-Savage ◽  
...  
Keyword(s):  
Abscisic Acid ◽  
Redox Regulation ◽  
Seed Quality ◽  
Seed Viability ◽  
Seed Storage ◽  
Storage Conditions ◽  
Seed Vigour ◽  
Allelic Differences ◽  
Seed Ageing ◽  
A Minor

Abstract High seed quality is a key trait to achieve successful crop establishment required for optimum yield and sustainable production. Seed storage conditions greatly impact two key seed quality traits; seed viability (ability to germinate and produce normal seedlings) and vigour (germination performance). Accumulated oxidative damage accompanies the loss of seed vigour and viability during ageing, indicating that redox control is key to longevity. Here, we studied the effects of controlled deterioration at 40°C and 75% relative humidity (RH) (‘ageing’) under two different O2 concentrations (21 and 78% O2) in Brassica oleracea. Two B. oleracea genotypes with allelic differences at two QTLs that result in differences in abscisic acid (ABA) signalling and seed vigour were compared. Ageing led to a similar loss in germination speed in both genotypes that was lost faster under elevated O2. In both genotypes, an equal oxidative shift in the glutathione redox state and a minor loss of α-tocopherol progressively occurred before seed viability was lost. In contrast, ABA levels were not affected by ageing. In conclusion, both ABA signalling and seed ageing impact seed vigour but not necessarily through the same biochemical mechanisms.

scholarly journals Assessment of Natural Ageing Related Physio-Biochemical Changes in Onion Seed

Agriculture ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 163 ◽  
Author(s):  
Brar ◽  
Kaushik ◽  
Dudi
Keyword(s):  
Seedling Establishment ◽  
Seed Quality ◽  
Seed Viability ◽  
Seed Storage ◽  
Germination Percentage ◽  
Quality Parameters ◽  
Biochemical Changes ◽  
Ambient Conditions ◽  
Onion Seed ◽  
One Year

This research was performed for a period of three years to determine the effect of natural seed ageing on different physiological and biochemical changes in three extensively cultivated onion cultivars in Northern India. Seed storage studies showed that germination percent, seed viability and other seed quality parameters decreased significantly with increasing storage time. The onion seed can be stored for a maximum period of one year under ambient conditions to maintain required germination percentage (>70%). Overall, Hisar Onion-4 stored better when compared to Hisar Onion-3 and Hisar-2. As the ageing progressed the seed antioxidants, namely superoxide dismutase (SOD), catalase (CAT), dehydrogenase (DHA) and peroxidase (POD) decreased significantly (p < 0.05) in all cultivars whereas, the electrical conductivity (EC) of seed leachates increased significantly. Under the field conditions, seedling establishment percent (SE) onion seed was positively correlated (R2 = 0.98; p < 0.05) with germination percent (GP). Overall, more than one year period of seed storage was associated with poor germination and seedling establishment potential in onion.

scholarly journals Population-based Models of Seed Viability Loss during Storage: What's the Use?

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 910C-910 ◽  
Author(s):  
Kent J. Bradford
Keyword(s):  
Seed Quality ◽  
Quantitative Description ◽  
Seed Viability ◽  
Seed Storage ◽  
Population Based ◽  
Probit Analysis ◽  
Seed Longevity ◽  
Seed Industry ◽  
Wide Range ◽  
Precise Quantification

In 1981, R.H. Ellis and E.H. Roberts published a classic paper on the quantification of aging and survival in seeds (Seed Sci. & Technol. 9:373). This paper and subsequent refinements described a model of seed aging in storage that was based on the fact that to a good approximation, deaths over time in a seed population are normally distributed. The model provides a quantitative description of seed longevity across a wide range of storage temperatures and moisture contents. Despite its theoretical importance and practical success, the Ellis–Roberts approach has not been widely adopted by the seed industry to assess seed quality and predict longevity in storage. This may be due, in part, to the rather unfamiliar statistics (probit analysis) used in the model and the apparent complexity of the equations. It will be the argument of this presentation, however, that the precise quantification of seed longevity that this model affords is less significant than the insight that it provides into the nature of seed populations and how to think about them. The objective of this presentation will be to demystify the Ellis–Roberts model and illustrate with concrete examples how the application of population-based thinking is advantageous in many aspects of seed storage and quality assessment.

scholarly journals Shelf Life of Kenaf (Hibiscus Cannabinus L.) Seed Stored Under Humid Tropical Conditions

2014 ◽  
Vol 67 (1) ◽  
pp. 75-86
Author(s):  
M.A. Adebisi ◽  
O.A. Esuruoso ◽  
J.A. Adetumbi ◽  
A.M. Abdul-Rafiu ◽  
T.O. Kehinde ◽  
...  
Keyword(s):  
Shelf Life ◽  
Crop Production ◽  
Seed Quality ◽  
Agricultural Research ◽  
Seed Viability ◽  
Storage Period ◽  
Hibiscus Cannabinus ◽  
Seedling Vigour ◽  
Tropical Conditions ◽  
Storage Location

Abstract Successful crop production depends initially on the availability of high-quality seed. Seed viability and vigour of four kenaf varieties during storage were investigated. Seeds of each variety were packed inside thick polythene bags and kept in Seed Stores under ambient conditions in two storage locations (Federal University of Agriculture, Abeokuta (FUNAAB) (29.8°C, 59.10 RH%) and Institute of Agricultural Research and Training, Ibadan (27.5°C, 64.68 RH%) for 240 days (8 months). Seeds were sampled during storage at 0, 60, 120, 180 and 240 days and tested for seed viability and seedling vigour index. Data collected on seed viability and seedling vigour were analyzed using ANOVA, mean separation using Duncan Multiple Range Test at 5% probability level and PROBIT analysis. The results showed differential responses in the two quality traits due to differences in storage location and varieties. Ibadan storage location provided more favourable conditions for higher seed quality compared to Abeokuta location while Ifeken 400 and Tianung had the best storage potential. The study showed that under ambient humid tropical conditions, storage period should not exceed 180 days (6 months) in order to maintain higher physiological quality with little or no cost. The PROBIT result revealed that the highest seed shelf life (longevity) of kenaf seeds of 8 to 9 months was derived for seeds of Ifeken 400 and Tianung stored in Ibadan and Abeokuta. The shortest shelf life of 6 months was estimated for Ifeken 100 stored in both locations.

scholarly journals Seed quality testing study in Quinoa (Chenopodium quinoa Wild.)

2020 ◽  
Vol 35 (1-2) ◽  
Author(s):  
Axay Bhuker ◽  
V. S. Mor ◽  
S. S. Jakhar ◽  
Puneeth Raj M. S.
Keyword(s):  
Seed Quality ◽  
Chenopodium Quinoa ◽  
Seed Viability ◽  
Optimum Temperature ◽  
Triphenyl Tetrazolium Chloride ◽  
Germination Test ◽  
Seedling Vigour ◽  
Tetrazolium Chloride ◽  
Quality Testing ◽  
Vigour Index

Present study was conducted on four genotypes of quinoa to find out optimum temperature and method for germination test at Department of Seed Science and Technology, CCS HAU, Hisar during 2019-20. The result of this study revealed that at 25oC temperature average germination was 22.47 per cent while it was 13.31 per cent at 20oC temperature. Similarly seedling lengths were 9.69 and 7.58cm and seedling vigour index-I were 229.54 and 103.07 at 20 and 25oC respectively. Between the methods, Top of Paper (TP) recorded 19.78 % germination while Between Paper (BP) recorded 16.00 % germination. Similarly, 8.51 and 8.77cm seedling lengths and 157.83 and 174.78 vigour index-I were observed in Top of Paper and Between Paper methods respectively. Poor germination was recorded in all four genotypes (Maximum 42%) which was confirmed by conducting tetrazolium test. It is concluded from the study that 25 oC temperature and both Top of Paper and Between Paper methods can be used for germination test in quinoa crop. For radical emergence test, 250C temperature for 60 hours should be used and for seed viability test, the seeds should soaked into 1.0% percent tetrazolium solution (2, 3, 5-triphenyl tetrazolium chloride) for 20 hours at 30oC.

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