scholarly journals Seed Viability, Seedling Growth and Yield in White Guinea Yam

Agronomy ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 2
Author(s):  
Prince E. Norman ◽  
Agyemang Danquah ◽  
Asrat Asfaw ◽  
Pangirayi B. Tongoona ◽  
Eric Y. Danquah ◽  
...  
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Seed Viability ◽  
Industrial Applications ◽  
Growth And Yield ◽  
Yield Potential ◽  
Plant Population Dynamics ◽  
Number Of Stems ◽  
Coefficient Of Velocity ◽  
Development Structure

The yam is an economic tuber crop utilized for food, feed, and various industrial applications. Botanical seed viability, seedling growth, and development are among factors that influence plant population dynamics, development, structure, and sustainability. However, little is known about seed viability, growth, and yield potential of seed-progenies developed using different mating designs. This study assessed seed germination, seedling growth, and yield traits in seed-progenies developed using North Carolina I (NC-1) and polycross mating designs. For this, seed germination and seedling nursery trials established using seed-progenies from different yam crosses were used. Results revealed that days to first seed germination (DAYFG), days to 50% germination (DAYSG), coefficient of velocity of germination, seed emergence speed (SES), germination index, final germination percent, and seedling vigor index significantly (p < 0.05) varied within and among NC-1 and PC-derived families. The mean days to first seed germination (DFSG) and DAYSG seed-progenies of NC-1 were significantly lower than the polycross progenies. Moreover, the seedling-progenies from the polycross produced a higher number of stems and more elongate tubers than those originated from the NC-1 mating. Progenies of family TDr1687 from a polycross mating were among the families that had the highest stem number (2.2), longest tuber (7.5 cm), and widest tuber (2.8 cm). The inter-family means of both NC-1 and polycross had a non-significant variation for mean tuber weight per plant. Our results suggest the relevance of seed germination and seedling attributes for selection of superior progenies at the early generation stage trials in yam breeding.

Effect of chromium on seed germination, seedling growth and yield of peas

1993 ◽  
Vol 47 (1) ◽  
pp. 47-57 ◽  
Author(s):  
N.R. Bishnoi ◽  
Anita Dua ◽  
V.K. Gupta ◽  
S.K. Sawhney
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Growth And Yield

scholarly journals Use of seaweed-based biostimulant (Ascophyllum nodosum) on ornamental sunflower seed germination and seedling growth

2019 ◽  
Vol 25 (3) ◽  
pp. 231-237 ◽  
Author(s):  
Patrick Luan Ferreira dos Santos ◽  
Alessandro Reinaldo Zabotto ◽  
Half Weinberg Corrêa Jordão ◽  
Roberto Lyra Villas Boas ◽  
Fernando Broetto ◽  
...  
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Sunflower Seed ◽  
Ascophyllum Nodosum ◽  
Dry Mass ◽  
Production Costs ◽  
Growth And Yield ◽  
Control Treatment ◽  
Beneficial Effects ◽  
Fresh And Dry Mass

Abstract Seaweed extracts are employed as biostimulants due to their beneficial effects on crop growth and yield. Ascophyllum nodosum seaweed extract aid to improve seedling growth and development, and decrease seedlings production costs; however, the correct concentration must be used in order to maximize the biostimulant effects. Consequently, this study aimed to analyze the effects of different concentrations of a seaweed-based (Ascophyllum nodosum) biostimulant on ornamental sunflower seed germination and seedling growth. Seeds of ornamental sunflower cv. “Sol Pleno” were sown in polyethylene trays containing commercial substrate. The treatments consisted of dairy spraying 60 mL of the solutions 0 (control), 5, 10 or 15 mL L-1 biostimulant on substrate. The experimental design was completely randomized with 4 treatments (concentrations of biostimulant) and 4 replicates (10 seeds replicate-1). The evaluated variables were percentage, index and time averages of germination, seedling height, fresh and dry mass of shoot and roots, and root system morphology (WinRhizo). The increase of the biostimulant concentration enhances seed germination and seedlings development. The concentration 15 mL L-1 biostimulant showed the best results for percentage and index of germination and the lowest mean germination time and increase plant height and fresh and dry mass of shoots in relation to the control treatment. Accordingly, 15 mL L-1 biostimulant (Ascophyllum nodosum) is recommended for ornamental sunflower “Sol Pleno” seed germination and seedlings growth.

scholarly journals TiO2 Nanoparticles Enhancing Germination, Growth and Yield of Rice

2020 ◽  
pp. 25-30
Author(s):  
Keya Debnath ◽  
Aparajita Das ◽  
Bimal Das ◽  
J. Karfoma
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Growth Parameters ◽  
Block Design ◽  
Growth And Yield ◽  
Yield Traits ◽  
Dose Limit ◽  
Tio2 Nps ◽  
Randomized Block Design ◽  
Almost All

Background: Titanium dioxide (TiO2) NPs are used in agriculture to increase seeds germination and seedlings growth and can improve yield by approximately 30%. The present experimental investigation demonstrated the effect of nanoparticles (NPs) Anatase - TiO2 (<100 nm size) on germination, seedling growth and yield attributing traits of rice. Methods: Rice seeds were treated with six concentrations (0, 10, 20, 50, 80 and 100 ppm) of nanoTiO2 and placed in Petri plates. Some amount was sown in the field following Randomized Block Design (RBD) with three replications for each treatment. Results: Application of TiO2 NPs significantly enhanced germination, seedling growth and yield traits for most of the concentrations as compared to the control. About 85% significant improvement of seed germination occurred by 20 ppm of TiO2 NPs. The results of TiO2 treated samples were higher in almost all the growth parameters, but the treatment was highly effective for 20 ppm followed by 50 ppm for grain yield. The response to nano-treatment on seed germination along with yield traits suggested the optimum TiO2 dose limit on these characters on rice.

scholarly journals Differential Response of Groundnut Genotypes for Varying CaCO3 Concentrations 

2021 ◽  
Author(s):  
T. Chitdeshwari ◽  
P.M. Brindhavani
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Arid Regions ◽  
Yield Loss ◽  
Germination Rate ◽  
Growth And Yield ◽  
Drastic Reduction ◽  
Growing Medium ◽  
The Impact ◽  
Background Soil

Background: Soil calcareousness is the major problem in arid and semi arid regions globally since lime induced chlorosis lead to the deficiency of many essential plant nutrients which in turn resulted in reduced growth and yield loss of many crops. To explore the effects of various concentrations of calcium carbonate (CaCO3) on seed germination and seedling growth of groundnut genotypes and to identify CaCO3 stress tolerant and sensitive groundnut genotypes. Methods: The seed germination and seedling growth of ten groundnut genotypes (CO 6, CO 7, TMV 2, TMV 10, TMV 13, TMV 14, VRI 7, VRI 8, ALR 2 and BSR 2) was investigated with CaCO3 concentrations ranging from 1 to 100 mM L-1 for a period of 14 days. Result: The genotypes VRI 8 and TMV 10 showed higher seed germination and seedling growth even at higher CaCO3 concentration (upto 20 mM L-1) and considered as tolerant genotypes. Whereas TMV 2 and VRI 7 exhibited drastic reduction even at 1 mM L-1 and confirms their susceptibility to CaCO3 stress. Higher concentrations of CaCO3 in the growing medium greatly decreased the germination rate, germination index and vitality index but the impact differs with potentials of genotypes studied.

scholarly journals Allelopathic effect of Sphenoclea zeylanica Gaertn. on rice (Oryza sativa L.) germination and seedling growth

2020 ◽  
pp. 1450-1455
Author(s):  
Ramida Krumsri ◽  
Hisashi Kato Noguchi ◽  
Thanatsan Poonpaiboonpipat
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Oryza Sativa L ◽  
Inhibitory Effect ◽  
Growth And Yield ◽  
Plant Residue ◽  
Plant Residues ◽  
Allelopathic Effect ◽  
Rice Seed ◽  
Equal Concentration

The allelopathic effect of Sphenoclea zeylanica Gaertn., a broadleaf paddy weed that hinders rice production in Thailand, was investigated. Different parts of S. zeylanica were used to determine their inhibitory effect on seed germination, and shoot and root length of rice in a laboratory. Aqueous extracts of leaves and stems had an inhibitory effect on rice germination and seedling growth more than 50% that of control at concentrations higher than 50 g L-1, whereas all concentrations of root extracts had no effect on rice seeds. At the concentration of 100 g L-1, leaf and stem extracts completely (100%) inhibited rice seed germination. The inhibitory effect was increased with increasing concentrations. Additionally, leaf extracts contained higher total phenolics (7.36 mg GE g-1 DW) and total flavonoids (254.19 µg QE g-1 DW) than extracts of other parts. In glasshouse conditions, soil incorporation with dried whole plant residue had a significant inhibitory effect on rice emergence, seedling height, and dry weight when compared with extracted residue at an equal concentration. The decomposition of S. zeylanica in the soil was also evaluated regarding rice seedling growth. The maximum inhibition was achieved 1-3 days after the application of plant residues. At the 30th day, the inhibition disappeared, suggesting that residue decomposition in the soil has been finished. These results support that S. zeylanica has an allelopathic effect on paddy fields, which may cause a reduction in rice growth and yield.

scholarly journals Effects of hydropriming on seed germination, seedling growth and yield of bitter gourd

2019 ◽  
Vol 17 (3) ◽  
pp. 281-287
Author(s):  
Shaila Shermin Tania ◽  
Md. Mokter Hossain ◽  
M Abul Hossain
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Cold Water ◽  
Tap Water ◽  
Block Design ◽  
Hot Water ◽  
Growth And Yield ◽  
Bitter Gourd ◽  
Control Treatment ◽  
Minimum Number

The experiment was conducted to find out the effects of hydropriming on seed germination, seedling growth and yield of bitter. Two single factor experiments were conduced at the laboratory and field of Seed Science and Technology Department following completely randomized design with three replications and randomized complete block design with five replications, rspectively. The experiments comprised six soaking treatments viz. T0: untreated (control), T1: tap water (around 25º ± 2º C) for overnight, T2:cold water (12ºC) for 5 min, T3: cold water (12ºC) for 10min, T4:cold water (12ºC) for 15min, T5: hot water (45ºC) for 5 min and T6: hot water (45ºC) for 10min soaking. The highest germination (88.0%) was obtained from T5 treatment and the lowest germination  (30.0%) was recorded in control treatment. It was also observed that T5 treatment exehibited superior performances in respect of most of the parameters studied in the laboratory as well as in fiield experiment as compeared to control treatment. In respect of fruit yield per plant, maximum number of fruits obtained from T5 treatment (16 fruits/plant) followed by T6 (14 fruit/plant), T1 (12 fruit/plant), T2 (12.0 fruit/plant), T3 (11.2 fruit/plant) and T4 (11.2 fruit/plant) and the minimum number of fruits per plant recorded from the control treatment (7.6). From the findings of these study it can be concluded that bitter gourd seeds soaked in hot water at 45ºC for 5 min could improve seed germination, expedite seedling growth and eventually increase the yield of fruit. J Bangladesh Agril Univ 17(3): 281–287, 2019

The restoration of sedge meadows: seed viability, seed germination requirements, and seedling growth ofCarex species

Wetlands ◽  
1999 ◽  
Vol 19 (4) ◽  
pp. 756-764 ◽  
Author(s):  
Arnold G. van der Valk ◽  
Tony L. Bremholm ◽  
Elizabeth Gordon
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Seed Viability ◽  
Sedge Meadows ◽  
Germination Requirements

scholarly journals Effects of Different Nutritional Systems on Seed Germination and Early Seedling Growth in Medicinal Pumpkin (Cucurbita pepo L.)

2015 ◽  
Vol 48 (4) ◽  
pp. 51-60
Author(s):  
D. Zarei ◽  
G. Shabani ◽  
M. Reza Chaichi ◽  
M. Khanahmadi ◽  
A. Akbarabadi
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Cucurbita Pepo ◽  
Positive Impact ◽  
Germination Rate ◽  
Block Design ◽  
Growth And Yield ◽  
Chemical System ◽  
Nutritional Treatment ◽  
Positive Effects

Abstract This study was carried out to determine the effect of different nutritional systems (chemical, biological and integrated) on germination and seedling growth in medicinal pumpkin (Cucurbita pepo L.). The statistical design was a randomized complete block design with four replications. Four levels of different fertilizing systems including chemical (T1), biological (a combination of nitrogen bacteria, Azospirillum brasilense and Glomus mosseae) (T2) and integrated fertilizing systems (biological fertilizer + 50% chemical fertilizer) (T3), and control (without fertilizer) (T0), were employed. The results indicated that the maximum seed germination was 95% and the highest seed germination rate with 30.4 per day was observed in the intergraded nutritional treatment. The experimental results showed that all nutritional treatments had positive effects on seed germination compared to control. The highest level of germination percentage with 95% and the highest rate of germination with 30.4 seeds per day were obtained in integrated nutritional treatment. However, the integrated nutritional system required more time to demonstrate its positive effect on the growth and yield of medicinal pumpkin compared to chemical system. The results of present experiment indicated that integrated nutritional treatment had the greatest positive impact on germination characteristics in medicinal pumpkin. Designing and developing such nutritional systems can guarantee and facilitate the achievement of long-term objectives of sustainable agriculture.

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