scholarly journals Short Communication: Seed germination of twelve Indonesian begonias for conservation

2019 ◽  
Vol 20 (4) ◽  
pp. 1192-1197
Author(s):  
MUHAMMAD EFENDI ◽  
AISYAH HANDAYANI ◽  
INTANI QUARTA LAILATY
Keyword(s):  
Seed Germination ◽  
Seed Treatment ◽  
Short Communication ◽  
Seed Quality ◽  
Agricultural Research ◽  
Seed Viability ◽  
Statistical Tool ◽  
Significance Level ◽  
Randomized Design ◽  
Star Program

Abstract. Efendi M, Handayani A, Lailaty IQ. 2019. Short Communication: Seed germination of twelve Indonesian begonias for conservation. Biodiversitas 20: 1192-1197. Knowledge of seed quality is essential when seeds are stored for the long term. A preliminary study on Begonia seed conservation was conducted, to characterize morphology and germination testing on native Begonia from Indonesia. As many as 12 species of Indonesian Begonia were observed for the characteristics of fruit and seeds. Later, we tested the level of seed viability at different levels of fruit maturity. The experimental design used a Completely Randomized Design (CRD) with two factors. Data analysis was performed using the Statistical Tool for Agricultural Research (STAR) program and further testing the Duncan Multiple Range Test (DMRT) at a 5% significance level. Generally, all seeds were barrel-like in shape, the smallest size in B. muricata (252.42 µm length), and the largest size in B. areolata (up to 451.42µm length, while the operculum 28.48 µm-104.9 µm length). Most Begonia seeds start germinating in the second and third weeks after sowing. B. scottii, and B. verecunda, as well as B. longifolia, showed germination in the second week, while other species tended not to be simultaneous. Dry seed germination was higher than seed wet for eight weeks. B. longifolia and B. scottii had the highest germination in wet seed treatment: while in the dry seed treatment, the highest germination was showed by B. areolata and B. muricata.

scholarly journals Viabilidad y germinación de semillas de Hechtia perotensis (Bromeliaceae)

2016 ◽  
Vol 65 (1) ◽  
pp. 153
Author(s):  
Violeta Elizalde ◽  
José Rodolfo García ◽  
Cecilia Beatriz Peña-Valdivia ◽  
Ma Carmen Ybarra ◽  
Otto Raúl Leiva ◽  
...  
Keyword(s):  
Seed Germination ◽  
Seed Quality ◽  
Seed Viability ◽  
Potassium Nitrate ◽  
Tetrazolium Chloride ◽  
Viability Test ◽  
Seed Collection ◽  
Randomized Design ◽  
Germination Experiments ◽  
Good Quality Seed

Endemic populations of Hechtia perotensis have been described in Puebla and Veracruz, Mexico. Good quality seed collections can be used in conservation, research and ecological restoration. To evaluate seed quality of wild and endemic species, some compounds are used as effective promoters of germination, such as potassium nitrate (KNO3) and gibberellic acid (AG3), because they increase seed germination capacity and reduce latency. The triphenyl tetrazolium chloride (tetrazolium) test correlates seed viability because it is based on the activity of dehydrogenases in live tissues that catalyze mitochondrial respiration. The objective of this study was to obtain information on size and weight of capsules and seeds and seed germination and viability of H. perotensis, collected in Veracruz in the year 2012 and 2015. The hypotheses were 1) that seed germination and viability are independent of the year of collection, 2) that there is a tetrazolium concentration that can identify seed viability better than others, and 3) that pretreatment with KNO3 or AG3 improves seed germination. Seed germination was assessed using a completely randomized design with three treatments (control and the germination promoters 0.2 % KNO3 and 500 mg/L AG3), four treatments for the viability test (control, 0.2, 0.5 and 1.0 % of tetrazolium) and six replicates for each treatment. A total of one hundred seeds for germination experiments, and 25 seeds for the viability test were used. The results between and within years were analyzed with ANOVA and multiple comparison with the Tukey test. The proportion of non-germinated seeds was quantified along with the number of normal and abnormal seedlings, seeds with viable embryo, seeds without embryo, and seeds with low or no viability. On average, for the 2012 collected sample, 36 % had viable embryos, 7 % had low viability, 24 % were not viable and 33 % had no embryo. This result was significantly different from the 2015 sample, for which 87 % of seed showed viable embryos, 10 % had low viability, 0 % was not viable and 3 % had no embryo. Seed germination was also significantly different between years (22 and 92 %) Pregerminative treatments did not improve germination. Seed germination and viability of H. perotensis significantly varied between years of seed collection.

scholarly journals Effect of Seed Treatments and Containers on Chilli and Brinjal Seed Viability

2019 ◽  
pp. 1-9
Author(s):  
Sunil Kumar ◽  
Suryapal Singh ◽  
S. S. Jakhar
Keyword(s):  
Electrical Conductivity ◽  
Seed Treatment ◽  
Seed Quality ◽  
Seed Viability ◽  
Quality Parameters ◽  
Packaging Material ◽  
Packaging Materials ◽  
Ambient Conditions ◽  
Pathology Laboratory ◽  
Seed Pathology

An experiment was conducted to investigate the influence of fungicides and packaging materials on longevity of chilli (variety: RCH-1) and brinjal (variety: Hisar Shyamal) seeds. The seeds were treated with 15 fungicides and were kept in three containers viz. Metal box, Cloth bag and Plastic zipling bag up to 12 months under ambient conditions in seed pathology laboratory of Department of Seed Science & Technology, CCSHAU, Hisar, India. The samples were drawn at quarterly intervals for ascertaining the seed quality parameters. The seeds treated with flusilazole and carbendazim (2 g kg-1 seed) in case of chilli and brinjal and stored in metal-box were found better for maintenance of higher seed quality parameters [electrical conductivity and dehydrogenase activity] during the study period. The study suggested that use of appropriate packaging material and seed treatment could be useful to prolong the storage life of chilli and brinjal seeds.

scholarly journals Effect of nano based seed treatment insecticides on seed quality in Pigeonpea

2017 ◽  
Vol 9 (2) ◽  
pp. 1226-1235
Author(s):  
B.N. Raghu ◽  
Basave Gowda ◽  
S. N. Vasudevan ◽  
Sangeeta I. Macha ◽  
Sharan Gouda Hiregoudar ◽  
...  
Keyword(s):  
Seed Germination ◽  
Seed Treatment ◽  
Seed Quality ◽  
Dry Weight ◽  
High Energy ◽  
Seed Kernel ◽  
Neem Seed ◽  
Seedling Vigour ◽  
Vigour Index ◽  
Sweet Flag

A laboratory experiment was conducted to know the effect seed treatment with nano insecticides on seed quality of pigeonpea (Cajanus cajan (L.) Millsp.) cv. TS3R. This study was conducted to evaluate the effect of macro and nano insecticides on seed germination and vigour of Pigeonpea. Different recommended seed treatment insecticides viz, malathion, fenvalerate, emamectine benzoate, thiodicarb, sweet flag and neem seed kernel powder insecticides were synthesized to nano form using high energy planetary ball mill. The Pigeonpea seed were treated with different nano insecticides i.e., 10-90 per cent reduction in actual dosage. Among the different treatments studied, seed treated with nano malathion 50 per cent lesser than normal dosage, fenvalerate 60 per cent lesser, thiodicarb 10 per cent lesser, emamectine benzoate 30 per cent lesser, sweetflag 70 per cent lesser, neem seed kernel powder 40 per cent lesser than actual recommended dosage gave significantly higher seed germination (98.0, 98.67, 98.67, 97.0, 99.0 and 98.67 percent) ,less number of abnormal seedlings (1.0, 0.33, 1.0, 1.0, 1.0 and 0.33 per cent) , shoot length (10.13, 9.00, 11.47, 9.50, 10.90 and 10.87 cm), root length (12.56, 12.93, 12.83, 12.60 11.50 and 13.00 cm), seedling dry weight (85.73, 87.40, 88.47, 87.70, 88.60 and 88.27 g) and seedling vigour index (2223, 2164, 2397, 2143, 2217 and 2354) as compared to untreated seeds and macro insecticides. Therefore, it is very clear that nano based insecticides has a significant (0.1 %) impact on the seed quality improvement.

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.

scholarly journals Effects of a growth promoter on bean (Phaseolus vulgaris L.) crops in Sancti Spíritus province, Cuba

2017 ◽  
Vol 66 (3) ◽  
pp. 360-366 ◽  
Author(s):  
Kolima Peña Calzada ◽  
Juan Carlos Rodríguez Fernández ◽  
Martín Santana Sotolongo ◽  
Dilier Olivera Viciedo ◽  
Cesar Danilo Valle Expósito ◽  
...  
Keyword(s):  
Phaseolus Vulgaris ◽  
Seed Germination ◽  
Seedling Growth ◽  
Field Experiments ◽  
Seed Quality ◽  
Latin Square ◽  
Growth Promoter ◽  
Phaseolus Vulgaris L ◽  
Controlled Conditions ◽  
Randomized Design

In order to evaluate the effect of a growth promoter on the productivity performance and seed-quality in bean (Phaseolus vulgaris L.) crops, two experiments were carried out, one in the field and under controlled conditions. In the field experiments, a Latin square design was used for four treatments as follows: control, 0.5, 0.8 and 1.0 l.ha-1, respectively, where yield components were evaluated. The seeds used in the controlled conditions experiment were from prior trials, in a totally randomized design, at the dosages above mentioned. Seed germination and seedling growth were evaluated. In the field experiments, the product had a stimulating effect on the production. The highest yields were reached with the 0.8 and 1.0 l.ha-1 dosages in number 1, with values of 3.09 and 3.02 t.ha-1, and in number 2, the treatment with the best results was 1.0 l.ha-1, with a yield of 2.07 t.ha-1. In germination, there were significant differences among variables only in the first assessment at three days after planting. The best performance in seedling growth and in dry matter production was the treatment with seeds from the 0.5 l.ha-1 dosage in experiment 1. In addition, in number 2, performance among variables was similar. Therefore, VIUSID agro improved the bean yield performance and did not affect later seed germination nor initial seedling growth.

Microwave radiation effect with and without chemical seed treatments on halo blight infected seed, seed germination, plant vigour, and yield of dry beans

2018 ◽  
Vol 98 (3) ◽  
pp. 648-656
Author(s):  
A.P. Friesen ◽  
R.L. Conner ◽  
D.E. Robinson ◽  
W.R. Barton ◽  
S. Chatterton ◽  
...  
Keyword(s):  
Seed Germination ◽  
Microwave Radiation ◽  
Pseudomonas Syringae ◽  
Seed Treatment ◽  
Seed Quality ◽  
Disease Incidence ◽  
Copper Hydroxide ◽  
Plant Vigour ◽  
Halo Blight ◽  
Pathogen Colonization

Halo blight, caused by Pseudomonas syringae pv. phaseolicola, is a seed-borne disease of dry bean (Phaseolus vulgaris L.) that lowers seed quality and yield. Over 2 yr, laboratory and field studies were conducted to evaluate the effect of microwave radiation on two market classes: navy (‘Envoy’) and white kidney (‘GTS 402’) bean. In the laboratory, seed germination and vigour decreased up to 15% after 40 s of microwave exposure, where <7% decrease was observed during 0–30 s. Disease plating showed no correlation between pathogen colonization of the seed and microwave radiation, as incidence of pathogen colonization was low across all exposure times. In field trials in Morden and Winkler, MB, microwave radiation was tested alone and in combination with copper hydroxide 53.8% and pyraclostrobin + fluxapyroxad + metalaxyl. Seed treatment with copper hydroxide slightly decreased the incidence of halo blight but had little impact on seed pick, hundred-seed weight, yield, or return on investment. Pyraclostrobin + fluxapyroxad + metalaxyl seed treatment had no effect on any of these parameters. Microwave radiation lowered seed emergence by up to 9% but did not reduce disease incidence and severity or increase yield or return of investment when applied alone or in combination with a chemical treatment.

scholarly journals Quality assessment of Urochloa (syn. Brachiaria) seeds produced in Cameroon

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Njehoya Clémence-Aggy ◽  
Ntchapda Fidèle ◽  
Kana Jean Raphael ◽  
Etchu Kingsley Agbor ◽  
Sita R. Ghimire
Keyword(s):  
Seed Germination ◽  
Quality Assessment ◽  
Seed Quality ◽  
Seed Viability ◽  
Quality Parameters ◽  
North West ◽  
Grass Seed ◽  
Significant Relationships ◽  
Livestock Farmers

AbstractUrochloa (syn. Brachiaria) is the most popular fodder of livestock farmers in Cameroon for hay and seed productions. Farmers in Cameroon have been producing Brachiaria seeds for decades for own uses and surplus are sold to neighbours, and to traders from Cameroon and neighbouring countries. However, there is no information available about qualities of these seeds. Fifteen Urochloa seeds samples were collected from farmers and/or government stations in five regions (Adamaoua, East, North, North West, and West) and analysed for major seed quality parameters along with seeds of improved Urochloa cultivar Basilisk imported from Brazil as a check. Study showed significant differences among treatments for various seed quality parameters tested (P < 0.0001). The highest thousand grains weight was recorded in Basilisk (5.685 g), followed by W12 (3.555 g), A05 (3.153 g) and N01 (2.655 g). Caryopsis number and caryopsis weight were highest in Basilisk followed by E09, A06, and W12. Of three conditions tested for seed germination, mean germination was the highest in greenhouse (7.39%) where Basilisk had the highest germination (25.5%) followed by N01 (18.50%), A05 (14.50%) and W12 (12.75%). The seed viability ranged from 18% (E09) to 81% (N01), and there were a positive and highly significant relationships between seed germination and viability traits (r = 0.883; P < 0.0001). This study showed a marked difference in seed quality parameters of Urochloa grass seeds produced in Cameroon, and the potential of developing Urochloa grass seed business in the Northern, Adamaoua and Western regions of Cameroon.

scholarly journals Effect of Nitrogen Fertilizer Doses and Pre Sowing Seed Treatments on Yield and Yield Attributing Characters in Foxtail Millet (Setaria italica L. Beauv)

2020 ◽  
Author(s):  
P. Umamaheswari ◽  
N. K. Gayathri ◽  
M. Subbarao
Keyword(s):  
Pseudomonas Fluorescens ◽  
Seed Treatment ◽  
Nutrient Management ◽  
Seed Quality ◽  
Agricultural Research ◽  
Foxtail Millet ◽  
Research Station ◽  
Seed Treatments ◽  
Enhancement Method ◽  
Sowing Seed

Background: Foxtail millet is considered as nutri-cereal and source of food, feed and fodder. Though it is grown in marginal conditions it can give the best production with the proper nutrient management for its cultivation. The objective of study was to identify the suitable seed quality enhancement method to increase grain yield of foxtail millet. Methods: During kharif 2017 and 2018 on black cotton soils at Regional Agricultural Research Station, Nandyal, the experiment was conducted in field and laboratory with split plot design with four nitrogen doses as main plots such as N1- control, N2- 125 kg neem+1250 kg vermi compost /ha, N3- 50 kg urea+50 kg super phosphate and 50 kg murate of potash /ha + top dressing urea at 3-4 weeks after transplanting + 2% borax spray, N4- N2 + N3 and four pre sowing seed treatments as sub plots. The treatments were P1- control, P2- soaking in water for 8 hours by adopting seed to solution of 1:1 ratio,P3-seed soaking with 2% KH2PO4 for 8 hours by adopting seed to solution of 1:1 ratio, P4-seed treatment with 20% liquid Pseudomonas fluorescens. After pre sowing seed treatment, seed were sown in field with different nitrogen doses. Result: Results revealed that application of 50 kg urea+ 50 kg super phosphate and 50 kg murate of potash/ha + top dressing urea at 3-4 weeks after transplanting + 2% borax spray recorded significantly higher seed yield (3148 kg/ha) and in pre sowing seed treatment with 20% liquid Pseudomonas fluorescens (3019 kg/ha) than other treatments.

scholarly journals Effect of harvest times on the yield and seed quality of French bean

2015 ◽  
Vol 13 (1) ◽  
pp. 1-13 ◽  
Author(s):  
MR Shaheb ◽  
MN Islam ◽  
A Nessa ◽  
MA Hossain
Keyword(s):  
Seed Germination ◽  
Seed Yield ◽  
Seed Quality ◽  
Agricultural Research ◽  
Block Design ◽  
French Bean ◽  
Research Field ◽  
Dry Matter Accumulation ◽  
Yellow Colour ◽  
Seed Technology

A two years field study was carried out in the research field and laboratory of Seed Technology Division, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh during rabi season of 2008-10. The aim of this study was to determine the effect of five different dates of harvest viz. H1: 65 Days after emergence (DAE), H2: 70 DAE, H3: 75 DAE, H4: 80 DAE and H5: 85 DAE on the seed yield and viability of French bean. The experiment was laid out in randomized complete block design (RCB) with four replications. Results showed that the yield and yield contributing parameters significantly influenced the days to harvesting. The highest seed yields of 1.15 and 1.31 t ha-1 were obtained from the harvest of 75 DAE (Days after emergence) in 2008-09 and 2009-10, respectively. On the contrary, seed quality parameters like seed germination, root length and vigour index were also significantly influenced by harvest time. The highest seed germination percentage of 91.33 and 91.56 were recorded from the seed plots harvested at 75 DAE (pods are light brown with few yellow colour) both for the year 2008-09 and 2009-10, respectively. Similarly, the vigour indexes (12.49 and 11.64) were the highest in seed harvested at 75 DAE from the year of 2008-09 and 2009-10, respectively. This might be due to more food reserve and dry matter accumulation on the seed at later harvest. However, seeds harvested in 80 and 85 DAE were also found good for seed yield and seed quality.SAARC J. Agri., 13(1): 1-13 (2015)

scholarly journals Germinación de Chiranthodendron pentadactylon Larr. (Sterculiaceae), en respuesta a la escarificación, temperatura y luz

2017 ◽  
pp. 5
Author(s):  
Reyna Osuna-Fernández ◽  
Guillermo Laguna-Hernández ◽  
Alicia Brechú-Franco ◽  
Alma Orozco-Segovia
Keyword(s):  
Seed Germination ◽  
Seed Coat ◽  
White Light ◽  
Maternal Effect ◽  
Seed Quality ◽  
Variable Temperature ◽  
Red Light ◽  
Seed Viability ◽  
Weather Conditions ◽  
Two Populations

Seed quality and seed germination with scarification and non scarification and variable temperature and light were determined in Ch. pentadactylon seeds form two places of Guerrero and Oaxaca. Also seed viability was determined in seeds from Guerrero stored 6 months at 5º C. Seeds showed to be orthodox and dormant due to an impervious seed coat. The seeds from Guerrero had higher weight, length and water content than those from Oaxaca, however the scarified seeds from Oaxaca reached a higher germination percentages. Germination of scarified seeds of the two populations was enhanced by alternated temperatures and inhibited by far red light. Germination under darkness, red light and white light did not differ significantly. In soil some seeds could be dormant under a low ratio red:far red light transmitted by litter. The differences between the two populations might be due to a maternal effect induced by weather conditions in their geographic localities.

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