scholarly journals Seed Management and Quality of Farmer Saved Seeds of Bambara groundnut from North Western, Northern and Eastern Uganda

2021 ◽  
Vol 56 (1) ◽  
pp. 1-15
Author(s):  
M. Obura ◽  
G. Oballim ◽  
J. O. Ochuodho ◽  
F. N.W. Maina ◽  
V.E. Anjichi
Keyword(s):  
Electrical Conductivity ◽  
Management Practices ◽  
Germination Percentage ◽  
Bambara Groundnut ◽  
Limited Information ◽  
Seedling Vigour ◽  
Legume Crop ◽  
Vigour Index ◽  
Seed Management

   Bambara groundnut (BG) is a protein and energy-rich legume crop of African origin with the potential to contribute to food and nutrition security. There is limited information on seed man­agement and quality of farmer saved seed of BG in Uganda. This study was conducted to inves­tigate seed management practices and evaluate the quality of farmer saved seed from Uganda. Four hundred BG farmers were chosen using purposive sampling and information gathered on their seed management. A semi-structured questionnaire was used to interview the farm­ers. Seed colour and size determination, standard germination and electrical conductivity tests were done on seed samples collected from farmers. Results from survey revealed that farmers recycled seeds for more than 4 years (39.2%) and maintained mostly single landraces (52.5%). Seed was sun-dried on the ground (81%), stored in gunny bags (93.5%), and threshed mostly by hand (52.0%). Collected landraces had varied seed coat colours and significantly differed at p = 0.05 in their seed sizes, final germination percentage (FGP), electrical conductivity (EC), germination velocity index and seedling vigour index II (SVI-II). Local Bam landrace recorded highest SVI-II (485.3) and EC (0.52MSg-1) while TVSU 688 landrace recorded the highest FGP (96.0%) and lowest EC (0.06MSg-1).

scholarly journals Seed quality assessment of three photo-insensitive cultivars of lablab bean influenced by date of sowing

1970 ◽  
Vol 33 (3) ◽  
pp. 381-389
Author(s):  
KM Kabir Alam ◽  
MKR Bhuiyan ◽  
GMA Halim ◽  
M Zakaria ◽  
MJ Hossain
Keyword(s):  
Electrical Conductivity ◽  
Quality Assessment ◽  
Key Words ◽  
Dry Matter ◽  
Seed Quality ◽  
Germination Percentage ◽  
Composite Sample ◽  
Lablab Purpureus ◽  
Vigour Index

Quality of seeds of three cultivars (IPSA Seem-2, BU Seem-3 and IPSA Seem-5) of lablab bean (Lablab purpureus L. Sweet) collected from crops planted in three different dates (15 May, 15 July, and 15 September 2003) was assessed in respect of different parameters. The maximum percentage of seeds of cv. IPSA Seem-2 was germinated (95.67) whereas, BU Seem-3 had the maximum electrical conductivity (EC) (316.06 μs/cm) followed by IPSA Seem-5 (261.53 μs/cm). The cv. IPSA Seem-2 also had the highest vigour index (VI) (65.04) and coefficient of germination (CG) (58.90). The maximum length of root and shoot was 13.73 cm and 12.98 cm in IPSA Seem-5 and IPSA Seem-2, respectively. The percentage of dry matter of root and shoot was the highest for BU Seem-3 (23.68 and 12.15, respectively), whereas, the composite sample of root and shoot of IPSA Seem-2 had the highest value of dry matter (14.54%). Seeds of September planted crops had better germination percentage (95.67), VI (50.07), CG (47.65), length of root (13.63 cm), dry matter of root (24.79%), shoot (13.34%) and composite sample (15.14%). Whereas, seeds of May planted crops had the maximum EC (388.23 μs/cm) and length of shoot (15.29 cm). Seeds of cv. IPSA Seem-2 collected from September planted crops had the maximum germination percentage (97.75), VI (70.96), CG (64.13), length of shoot (11.41 cm) and dry matter percentage of composite sample of root and shoot (16.58). BU Seem-3 of May planted crops had the maximum EC (469.78 μs/cm). But BU Seem-3 of September planting had the highest dry matter of root of seedling (25.19%). Seedlings of cv. IPSA Seem-5 planted in September had the highest length of roots (14.63 cm) and dry matter of shoot (13.79%). Key Words: Seed quality, photo-insensitive, dates of planting and lablab bean. doi:10.3329/bjar.v33i3.1597 Bangladesh J. Agril. Res. 33(3) : 381-389, September 2008

scholarly journals Size and vigor of Anadenanthera colubrina (Vell.) Brenan seeds harvested in Caatinga areas

2017 ◽  
Vol 39 (4) ◽  
pp. 363-373 ◽  
Author(s):  
Jaciara de Souza Bispo ◽  
Danielle Carolina Campos da Costa ◽  
Samara Elizabeth Vieira Gomes ◽  
Gilmara Moreira de Oliveira ◽  
Janete Rodrigues Matias ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Dry Matter ◽  
Folk Medicine ◽  
Germination Percentage ◽  
Climate Variations ◽  
Randomized Design ◽  
Mother Plants ◽  
Physiological Quality ◽  
Completely Randomized Design

Abstract: Angico is a species found in several environments in Brazil, with several applications. It is used in the timber industry and mainly in folk medicine. In order to verify a variation in the biometric characteristics and the quality of seeds from different mother-plants in different harvesting years, the following variables were studied: moisture content, diameter, density, electrical conductivity, fresh and dry matter of seedlings, germination percentage and kinetics, in a completely randomized design with a 2x3 factorial arrangement (lots x size). The obtained results showed that angico seeds from different lots showed different physiological quality, possibly due to the climate variations to which mother-plants were submitted in the different years. Seed size directly interferes with seedling growth under both controlled and greenhouse conditions, and it can be used as a vigor indicator for angico seeds.

scholarly journals Development of priming technology for enhanced planting value of seeds in kabuli chickpea (Cicer arietinum L.)

2021 ◽  
Vol 13 (2) ◽  
pp. 735-743
Author(s):  
Umesh Hiremath ◽  
Basave Gowda ◽  
Lokesh G.Y . ◽  
B. S. Ganiger
Keyword(s):  
Root Length ◽  
Seed Quality ◽  
Dry Weight ◽  
Germination Percentage ◽  
Quality Parameters ◽  
Shoot Length ◽  
Growth And Yield ◽  
Seedling Vigour ◽  
Seedling Length ◽  
Vigour Index

The continuous rise in global population demands more food production under limited land resources accompanied by climate change. More oversupply of quality seeds to meet ever-growing food demand is a highly challenging task. Seeds with low vigour level limit the growth and yield of crops at varied field conditions. Hence, an experiment was conducted to develop a technique for the fast and homogeneous growth of kabuli chickpea seeds. The priming treatments evaluated in the present study enhanced the various seed quality parameters of kabuli chickpea significantly when compared to control. Hydro-priming for 4 hours (at 20°C) and air drying for 72 hours showed better results compared to rest of the treatments both in fresh seeds which recorded higher first count (66.38%), germination (92.50%) root length (11.85 cm), shoot length (6.16), mean seedling length (18.01), dry seedling weight (747 mg), seedling vigour index-I (1665), higher speed of emergence (0.3992) and old seeds with higher first count (61.88%), germination (74.13%) root length (8.15 cm), shoot length (5.85 cm), mean seedling length (14.00 cm), seedling dry weight (611 mg), seedling vigour index-I (1056), higher speed of emergence (0.3814). The aged seeds have recorded 29 % increase in germination percentage in contrast to 8 percent increases in fresh seeds. Kabuli chickpea seeds could be subjected to hydropriming, an affordable, alternative, and eco-friendly technique for improving seed and seedling vigour of kabuli chickpea.

scholarly journals Physiological quality of osmoprimed gherkin seeds

2013 ◽  
Vol 35 (3) ◽  
pp. 368-373 ◽  
Author(s):  
Rodrigo de Góes Esperon Reis ◽  
Humberto Pereira da Silva ◽  
José Maria Gomes Neves ◽  
Renato Mendes Guimarães
Keyword(s):  
Electrical Conductivity ◽  
Room Temperature ◽  
Dry Weight ◽  
Potassium Nitrate ◽  
Germination Percentage ◽  
Initial Profile ◽  
Randomized Design ◽  
Physiological Quality ◽  
Osmotic Potentials

It was aimed to verify the effect of different methodologies of osmopriming on physiological quality of gherkin seeds. Prior, it has been characterized the initial profile of the gherkin seeds. Then, the seeds were osmoprimed in gerboxes containing two blotter papers wetted with osmotic solutions in a volume equal to three times the paper dry weight and kept in BOD at 15 °C. After the priming, the seeds were dried at room temperature for 48 hours. Then, the following variables were evaluated: seeds moisture content, percentage of germination, percentage of emergence, emergence speed index and electrical conductivity. The analyses of variances were realized according to a randomized design in a factorial scheme 3 x 2 x 4: three solutes (polyetilene glycol 6000 - PEG, potassium nitrate - KNO3 and PEG + KNO3), two osmotic potentials (-0.55 and -1.10 MPa) and four times of priming (24, 48, 72 and 96 hours), followed by analyses of regression. It is concluded that the priming has no effect on germination and affects positively the vigor of the gherkin seeds lots; osmopriming with potassium nitrate is effective in improving the physiological quality of gherkin seeds lot.

scholarly journals Mycoflora impact on germination and vigour of bottle gourd (Lagenaria siceraria) seeds and its management through different plant protectants

2021 ◽  
Author(s):  
Namita Soni ◽  
Kushal Raj ◽  
V. S. Mor ◽  
Rakesh Kumar Chugh
Keyword(s):  
Germination Percentage ◽  
Fusarium Proliferatum ◽  
Bottle Gourd ◽  
Copper Oxychloride ◽  
Germination Inhibition ◽  
Seedling Vigour ◽  
Vigour Index ◽  
The Impact ◽  
Highly Virulent

Bottle gourd is an important cucurbitaceous crop. The impact of 14 species from eight fungal genera on bottle gourd seeds was studied through in vitro tests. Bottle gourd seeds were inoculated with each isolate separately and subjected to various germination tests. Maximum germination inhibition was upto 69.3% due to Fusarium proliferatum. Inoculation of seeds with F. proliferatum significantly reduced the germination speed index to 2.69. The seedling vigour index I for seeds inoculated with F. proliferatum and F. incarnation-equiseti (species complex) was 860 and 861, respectively, significantly different from that of non-inoculated seeds having a vigour index of 1791. The seedling vigour index II of seeds inoculated with F. proliferatum was 1818, significantly lower than the control (4631), indicating that the F. proliferatum isolate was highly virulent among all the isolates. Amongst seven plant protectants evaluated for their efficacy as seed dressers against F. proliferatum, propioconazole (25% EC), copper oxychloride (50% WP) and Mancozeb (75% WP) were effective in reducing infection. Germination percentage was highest for seeds treated with the bioagent Trichoderma harzianum 1% WP.

scholarly journals Date palm compost versus peat and perlite: a comparative study on germination and plant development of muskmelon and tomato

2021 ◽  
Vol 24 (2) ◽  
pp. 96-104
Author(s):  
Afraa Radhouani ◽  
Leila Benyehia ◽  
Belgacem Lechaiheb ◽  
Afef Mahjoubi ◽  
Ali Ferchichi
Keyword(s):  
Plant Development ◽  
Arid Regions ◽  
Date Palm ◽  
Stem Elongation ◽  
Germination Percentage ◽  
Growth Media ◽  
Potting Medium ◽  
Vigour Index ◽  
Pronounced Reduction

Abstract This research was carried out in the experimental site of the Arid and Oasian cultures Laboratory of the Institute of Arid Regions, Medenine, Tunisia. It aims at studying the effects of compost on seed germination patterns, seedling growth, and plant development of muskmelon and tomato under greenhouse conditions. Three growth media were used: compost of date palm wastes and two reference media (peat and perlite). The results showed that compost presented a promising threshold of both maturity and stability, which is related to its neutral pH, C : N ratio, greater humic acid vs fulvic acid, and low values of chlorophyll-type compounds. Seeds of muskmelon and tomato germinated at varying liquid compost extract concentrations and muskmelon reached higher germination index values even at the pure extract solution (100%). Moreover, seeds of both species germinated relatively faster in peat than in compost and an overall delay in germination was observed, with a more pronounced reduction on tomato germination percentage. Produced seedlings have attained a similar vigour index among media (p <0.05). Compost of date palm was more suitable for muskmelon stem elongation and leaf-enlarging capacity than perlite. However, the gustative quality of fruits was not significantly affected by the medium-types. Thus, it is concluded the promoising effect of compost of date palm as potting medium and substrate in soilless culture under greenhouse conditions unless a pertinent choice of cultures.

scholarly journals Foliar application of plant growth regulators changes the physiological quality of crambe seeds

2019 ◽  
Vol 41 ◽  
pp. e46093 ◽  
Author(s):  
Nayara Parisoto Boiago ◽  
Silvia Renata Machado Coelho ◽  
Giovana Scalcon Fernandes ◽  
Carlos Henrique de Oliveira Paz ◽  
Felipe Samways Santos
Keyword(s):  
Electrical Conductivity ◽  
Plant Growth ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Germination Percentage ◽  
Control Treatment ◽  
Cultivated Plants ◽  
Germination Speed ◽  
Physiological Quality

The application of plant growth regulators can manipulate the development of cultivated plants, and their physiological effects may be reflected in the physiological quality of the seeds. This study evaluated the effects of plant growth regulators (PGR) on the physiological quality of crambe seeds produced in the 2014 and 2015 harvests. During crop development, we applied two foliar sprayings of the following treatments: 1) control treatment with distilled water; 2) indole-3-acetic acid 100 mg L-1 (IAA); 3) 3-gibberellic acid P.A. 100 mg L-1 (GA3); 4) commercial PGR Stimulate® 6 mL L-1. The seeds were harvested and evaluated for water content, germination percentage and germination speed index (GSI), electrical conductivity and concentrations of leached Ca, Mg and K ions. Means were compared by Tukey´s and Dunnett tests (p<0.05). Applying Stimulate® increased the germination percentage and the germination speed index, while IAA application showed an opposite effect, increasing the electrical conductivity of crambe seeds. Calcium leaching decreased with IAA application, and all regulators reduced K leaching. We therefore infer that the application of plant growth regulators influences the physiological quality of crambe seeds.

Influence of Priming with Exogenous Selenium on Seed Vigour of Alfalfa (Medicago sativa L.)

2021 ◽  
Author(s):  
F.S. Xia ◽  
C.C. Wang ◽  
Y.Y. Li ◽  
Y.Y. Yang ◽  
C. Zheng ◽  
...  
Keyword(s):  
Higher Plants ◽  
Seed Priming ◽  
Germination Percentage ◽  
Health Concern ◽  
Global Public Health ◽  
Seedling Vigour ◽  
Seed Vigour ◽  
Vigour Index ◽  
Low Selenium ◽  
Alfalfa Seeds

Background: Selenium (Se) is an essential trace element to higher plants, animals and humans, but low Se levels are a global public health concern. Seed priming has become a basic strategy for the production of Se-riched agricultural products, but its application is still not clear in the production of Se-enrich alfalfa, hence this study was conducted for the production of Se-enriched alfalfa by seed priming with different concentrations and time on seed vigour. Methods: Seeds were primed with 0, 0.5, 1.0, 2.0, 4.0 and 8.0 mmol L-1 of sodium selenite solution for 0, 3, 6, 9 and 12 h at 20°C and their germination percentage, germination index, seedling vigour index and mean germination time were analyzed. Result: Seed vigour of alfalfa was improved by priming with low selenium (Se) concentration (0.5 and 1.0 mmol L-1), but was inhibited by high Se concentration ( greater than 2.0 mmol L-1). Hence, it must be necessary to carefully select appropriate concentration and time for the application of Se priming in alfalfa seeds. The optimal manner of Se priming in alfalfa seeds might be at 1.0 mmol L-1 concentration for 9 h.

Impact of Seed Maturation and Drought on Seed Germination and Early Seedling Growth in White Clover (Trifolium repens L.)

2021 ◽  
Author(s):  
Ruqiang Tong ◽  
Xinyuan Liu ◽  
Bifan Mu ◽  
Junfeng Wang ◽  
Mengxing Liu ◽  
...  
Keyword(s):  
Seedling Growth ◽  
White Clover ◽  
Germination Percentage ◽  
Seed Maturation ◽  
Percentage Germination ◽  
Seedling Vigour ◽  
Early Seedling Growth ◽  
Vigour Index ◽  
Early Seedling ◽  
The Mean

Background: Understanding the drought tolerance of white clover seeds during germination and early seedling growth and how that is linked to seed maturation in legume species, is crucial to developing new stand establishments.Methods: An experiment was conducted in Randomized Block design in two factorial concept to explore how seed maturation and drought tolerance influence seed germination and early seedling growth using the two factors: seed coat color (yellow and brown, two levels as one factor) and drought intensity (control: 0 MPa [distilled water], mild drought: -0.2 MPa, moderate drought: -0.4 MPa and severe drought: -0.6 MPa, four levels as another factor).Result: In contrast to the yellow-coated seeds, the mean germination percentage, germination index, seedling vigour index and radicle length of the brown-coated seeds were lowered by 7.9%, 23.1%, 20.5% and 12.9%, respectively. Compared to the control, introducing drought conditions reduced the mean of germination percentage, germination index, seedling vigour index and radicle length of yellow-coated seeds by 52.4%, 64.1%, 41.9% and 23.2%, respectively. Meanwhile, drought affected brown-coated seeds more than yellow-coated seeds. The results indicating that the seed quality of white clover seed lots with yellow-colored coats higher than the seed lots with brown-coloured coats. In agronomic practice, a larger proportion of yellow-coated seeds should be harvested to improve new stands successful establishment under environment easy to dry.

scholarly journals An improved method of seed germination testing in Kabuli chickpea

2018 ◽  
Author(s):  
Basave Gowda ◽  
A. Krishna Naik ◽  
Rakesh . ◽  
C. Mathad ◽  
B.S. Ganiger ◽  
...  
Keyword(s):  
Seed Germination ◽  
Germination Percentage ◽  
Improved Method ◽  
Testing Methods ◽  
Seedling Vigour ◽  
Seed Testing ◽  
Testing Method ◽  
Vigour Index ◽  
Paper Method ◽  
Germinated Seeds

An experiment was conducted during 2014-2015 to standardize the seed testing method in Kabuli chickpea MNK-1 by number of seeds and number of germination papers. Among the different testing methods 25 seeds per replication recorded highest seed germination percentage (91.58%), less number of fresh un-germinated seeds (1.91%), abnormal seedlings (4.00%), diseased seeds (2.33%) and significantly higher seedling vigour index-I and II (2215 and 6863), among the number of germination papers used 2+1 as in between paper method(Bottom 2 and one paper above) recorded significantly higher germination percentage (92.12%), less number of fresh un-germinated seeds (1.41%), abnormal seedlings (3.66%), diseased seeds (2.33%) and significantly higher seedling vigour index-I and II (2463 and 6900), when compared to other. Irrespective of number of germination paper and seeds used however, interaction of 25 seeds per replication and 2+1 between paper method of seed germination testing showed significantly germination percentage (96.50%), less number of fresh un-germinated seeds (0.00%), abnormal seedlings (1.00%), diseased seeds (1.00%) and significantly higher seedling vigour index-I and II (2844 and 7792) followed by 50 seeds per replication. 

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