Production of desert rose seedlings in different potting media

Over the past decade the desert rose received fame in the flower market due to its striking and sculptural forms; however, the commercial production of these species is quite recent and little is known about its crop management, including substrates recommendation. The objectives of this study were to investigate the effect of different substrates on desert rose seed germination and production of its seedlings. Experiment I: freshly harvested seeds of desert rose were sown in different substrates e.g. sand, coconut fiber, semi-composted pine bark, sand + coconut fiber, semi-composted pine bark + sand and coconut fiber + semicomposted pine bark. These substrates were evaluated to study the emergence percentage of seeds, initial growth of seedlings and seedling emergence speed index (ESI). Experiment II: desert rose from the experiment I were transferred to plastic pots filled with the same substrates as in experiment I. The pH and electrical conductivity (EC) of the substrates were noted every 30 days while the growth parameters of seedlings were recorded after 240 days. Results from experiment I showed higher germination rate and seedling growth in substrates containing semi-composted pine bark. Similarly, in experiment II, better quality seedlings were observed in substrates containing semi-composted pine bark. Thus, for desert rose seed germination and seedling growth, it is recommended to use substrates containing semi-composted pine bark.

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Assessment on the Effects of Potting Media on Seed Germination and Early Seedling Growth of Pterocarpus erinaceus Poir

Journal of Applied Sciences and Environmental Management ◽

10.4314/jasem.v25i6.11 ◽

2021 ◽

Vol 25 (6) ◽

pp. 969-975

Author(s):

M.K. Peter ◽

SIN Agera ◽

J.I. Amonum

Keyword(s):

Seed Germination ◽

Seedling Growth ◽

Growth Parameters ◽

Cow Dung ◽

Early Seedling Growth ◽

Top Soil ◽

Early Seedling ◽

Potting Media ◽

Number Of Leaves ◽

Poultry Droppings

This study investigated the effects of potting media on seed germination and early seedling growth of Pterocarpus erinaceus Poir at the Forestry Nursery in Jos, Nigeria. Using Completely Randomized Design (CRD) with three replicates, laboratory-tested soil samples, top soil, sharp sand, sharp sand + top soil, sharp sand + top soil + cow dung and sharp sand + top soil + poultry droppings were used in various combinations to assess the growth parameters of P. erinaceus (germination percentage, emergence, plant height, number of leaves, length of leaves and stem diameter) for 12 weeks. Descriptive and inferential statistics were employed to analyze collected data. Result indicated that sharp sand + top soil + poultry droppings had the highest nitrogen concentration (2.19%), sharp sand + top soil + cow dung (2.07%), sharp sand + top soil (1.50%), top soil (0.72%) and Sharp sand (0.38%). Potting media with poultry droppings recorded an overall higher percentage germination of 42.9% by the end of the germination period. Analysis of variance (ANOVA) of collected data on combined soil aggregate on growth parameters indicated a significant (p<0.05) difference in plant height, number of leaves, leaf length and stem diameter. Potting with poultry dropping gave the best potting media growth results when compared to other treatments that enhanced seed germination and seedling growth of P. erinaceus. This superior observation of the poultry droppings incorporated potting mixtures over the cow dung provides an outstanding potentials to enhance P. erinaceus plantation establishment. Consequently, recommended for raising seedlings in the nursery as well as ensuring sustainable management.

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Emergence rate of seedlings from hard okra seed coats and seedling growth of some genotypes of West African okra (Abelmoschus caillei)

Agricultural Science and Technology ◽

10.15547/ast.2019.02.019 ◽

2019 ◽

Vol 11 (2) ◽

pp. 118-122

Author(s):

P.M. Jonah ◽

G. K. Farauta ◽

Y. M. Kwaga ◽

H. E. Shehu ◽

N. M. Fakuta ◽

...

Keyword(s):

Seed Germination ◽

Seedling Growth ◽

Seedling Emergence ◽

West African ◽

Permeability Barrier ◽

State University ◽

Cropping Season ◽

Emergence Rate ◽

Emergence Percentage ◽

Seed Coats

Abstract. In 2017 and 2018 cropping season, field experiment was conducted at the Food and Agricultural Organization and Tree Crop Plantation, Department of Crop Science, Adamawa State University, Mubi using fifteen genotypes of West African okra. The study was undertaken to study the emergence rate of seedlings from hard okra seed coats, seedling growth and their development. The seeds of the genotypes were soaked in NaCl solution for 24 hours to accelerate the breaking of seed dormancy and to ease seed germination. Tough seed coat usually impairs seed germination by establishing a permeability barrier which can interrupt water uptake required for imbibition, radicle and seedling emergence. The combined analysis results revealed a highly significant (P≤0.01) difference among these genotypes with respect to days to first and 50% flowering including days to first harvest. Furthermore, accession 3 (NG/SA/DEC/07/0448) and accession 11 (Yar kwadon) flowered earlier, had shortest days to first harvest, recorded the highest number of seedlings and emergence percentage than the other genotypes studied.

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Effect of Different Sowing Media on Seed Germination and Seedling Growth of (Golden Shower Tree) Senna fistula L

Journal of Applied Sciences and Environmental Management ◽

10.4314/jasem.v25i8.40 ◽

2021 ◽

Vol 25 (8) ◽

pp. 1547-1550

Author(s):

O.A. Majekodunmi ◽

I.O. Abiola ◽

A.M. Aderemi ◽

J.O. Adedipe ◽

O.G. Ogunwale ◽

...

Keyword(s):

Seed Germination ◽

Seedling Growth ◽

Growth Parameters ◽

River Sand ◽

Coconut Husk ◽

Randomized Design ◽

Top Soil ◽

Significant Difference ◽

Emergence Percentage ◽

Level Of Significance

This study investigated the effect of sowing media on the seed germination and subsequent seedling growth of Senna fistula L. Treatments were T1 (Top soil), T2 (River sand), T3 (Grinded coconut husk) and T4 (weathered sawdust), replicated two times for seed germination. The treatments were arranged in a Completely Randomized Design (CRD) and the data generated was subjected to analysis of variance (ANOVA) at 5% level of significance, while mean separation where appropriate was done using Least Significant Difference (LSD). The different sowing media used had positive effect on the seed emergence, the seeds planted in river sand had the highest emergence percentage of 70%. The different sowing media used did not have any significant effect on the vegetative growth parameters, statistically, they had same effect on the parameters measured. Nonetheless, seedlings from river sand produced highest number of leave (20.4), seedlings from topsoil produced highest plant height and largest leaf area of l0.62 cm and 37.l4 cm2 respectively. The seedlings from weathered sawdust produced the highest stem diameter of 0.79 mm, while seedlings from grinded coconut husk had lowest values for all the growth parameters measured. Therefore, it is recommended that river sand or weathered sawdust can be used to propagate Senna fistula seeds.

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Utilization of Grape Fruit Waste-based Substrates for Seed Germination and Seedling Growth of Lemon Basil

HortTechnology ◽

10.21273/horttech03761-17 ◽

2017 ◽

Vol 27 (4) ◽

pp. 523-529 ◽

Cited By ~ 2

Author(s):

Mohammed El-Sayed El-Mahrouk ◽

Yaser Hassan Dewir ◽

Salah El-Hendawy

Keyword(s):

Seed Germination ◽

Seedling Growth ◽

Growth Parameters ◽

Low Cost ◽

Germination Rate ◽

Germination Percentage ◽

Waste Recycling ◽

Grape Fruit ◽

Fruit Waste ◽

One To One

Grape (Vitis vinifera) waste management is a major problem in juice production, but it could be transformed into a major opportunity if the waste was recycled and used as a nursery growing medium. The aim of this study was to evaluate the suitability of four composts based on squeezed grape fruit waste (SGFW), mixed with coir or vermiculite in a one-to-one ratio by volume to form 13 growing media, for seed germination and seedling growth of ‘Mrs. Burns’ lemon basil (Ocimum basilicum var. citriodora). The final germination percentage (FGP), corrected germination rate index (CGRI), survival percentage, and seedling growth of ‘Mrs. Burns’ lemon basil were the variables measured. Pure SGFW reduced seed germination and seedling growth. The medium combining pure SGFW with vermiculite in a one-to-one ratio by volume was optimal for seed germination and seedling growth; in this medium the highest FGP, CGRI, survival rate, and growth parameters were recorded. The negative effects of pure SGFW composts were eliminated by mixing all composts with coir or vermiculite. These waste recycling media are low-cost products that can be beneficially used in nurseries on a commercial scale.

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Effect of Different Sowing Media on Seed Germination and Seedling Growth of (Golden Shower Tree) Senna fistula L

Journal of Applied Sciences and Environmental Management ◽

10.4314/jasem.v25i8.32 ◽

2021 ◽

Vol 25 (8) ◽

pp. 1493-1496

Author(s):

O.A. Majekodunmi ◽

I.O. Abiola ◽

A.M. Aderemi ◽

J.O. Adedipe ◽

O.G. Ogunwale ◽

...

Keyword(s):

Seed Germination ◽

Seedling Growth ◽

Growth Parameters ◽

River Sand ◽

Coconut Husk ◽

Randomized Design ◽

Top Soil ◽

Significant Difference ◽

Emergence Percentage ◽

Level Of Significance

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Effects of extracts of two Ulva spp. seaweeds on tomato germination and seedling growth

Research Society and Development ◽

10.33448/rsd-v9i11.10174 ◽

2020 ◽

Vol 9 (11) ◽

pp. e61691110174

Author(s):

Renata Perpetuo Reis ◽

Antônio Carlos Silva de Andrade ◽

Ana Carolina Calheiros ◽

Jéssica Carneiro Oliveira ◽

Beatriz Castelar

Keyword(s):

Seed Germination ◽

Seedling Growth ◽

Growth Parameters ◽

Seedling Emergence ◽

Brown Seaweed ◽

Stem Diameter ◽

Tomato Seedling ◽

Green Macroalgae ◽

Significant Difference ◽

Aged Seeds

Brown seaweed extracts are commercially used as agricultural biostimulants, and the green macroalgae Ulva spp. has shown promise for that purpose. We evaluated the ideal dosage of U. lactuca ulvan and flour on seed germination invigoration and the effects of U. flexuosa and U. lactuca extracts on tomato seedling growth (Solanun lycopersicum). The germination recovery of aged seeds after the application of U. lactuca was evaluated by seed germination rates and seedling emergence. Greenhouse cultivated seedlings were irrigated with 0.2 and 0.4 g×L-1 of the flour, or an ulvan solution of Ulva spp. Seedling growth parameters (height, stem diameter, height/stem diameter ratio, biomass, and number of leaves) were compared with the control (seedlings irrigated with distilled water). All dosages of U. lactuca ulvan and flour were found to increase the germination rates of aged seeds as compared to controls. No significant difference in seedling emergence rates were seen. After treatment with Ulva spp. extracts no significant differences in seedling growth were detected. We concluded that low doses of the U. lactuca extract will increase the germination rates of S. lycopersicum seeds and, while different dosages of the extracts of two Ulva’s species did not stimulate tomato seedling growth, they were also not lethal.

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Impact of AgNPs on Seed Germination and Seedling Growth: A Focus Study on Its Antibacterial Potential against Clavibacter michiganensis subsp. michiganensis Infection in Solanum lycopersicum

Journal of Nanomaterials ◽

10.1155/2019/6316094 ◽

2019 ◽

Vol 2019 ◽

pp. 1-12

Author(s):

Asma Noshad ◽

Crispin Hetherington ◽

Mudassar Iqbal

Keyword(s):

Seed Germination ◽

Solanum Lycopersicum ◽

Seedling Growth ◽

Growth Parameters ◽

Plant Root ◽

Germination Rate ◽

Bacterial Pathogen ◽

Economic Losses ◽

Root Weight ◽

Clavibacter Michiganensis

This study investigated the effect of biogenic AgNPs on seed germination and seedling growth of Solanum lycopersicum. Treatment with silver nanoparticles (AgNPs) showed a significantly high germination rate and seedling growth compared to untreated seeds. Furthermore, its bactericidal effect against bacterial pathogen Clavibacter michiganensis subsp. michiganensis (cmm) infection in Solanum lycopersicum was also determined. Bacterial canker of tomato (BCT) caused by cmm results in reduced plant growth and production leading to considerable economic losses. Herein, fungal extracts of T. harzianum and A. fumigatus were used separately as a reducing agent to synthesize AgNPs of varying concentrations (0.088 mg/L, 0.176 mg/L, and 0.44 mg/L). Results suggested that the biosynthesized AgNPs not only worked as bactericide but also completely inhibited the incidence of cmm infection even at the lowest concentration of 0.088 mg/L under greenhouse conditions. Plants treated with AgNPs showed significantly enhanced growth parameters including plant height (cm), tomato yield/plant (g), fresh biomass (g), number of shoots/plant, root weight (g), and dry biomass (g). So, in order to reduce the toxic effects of chemical-based bactericides, biobased AgNPs are recommended, not only to control but also to prevent the bacterial infection in agriculture.

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Suitability of Whole Pine Tree Substrates for Seed Propagation

Journal of Environmental Horticulture ◽

10.24266/0738-2898-33.1.20 ◽

2015 ◽

Vol 33 (1) ◽

pp. 20-28

Author(s):

Anthony L. Witcher ◽

Eugene K. Blythe ◽

Glenn B. Fain ◽

Kenneth J. Curry

Keyword(s):

Seed Germination ◽

Seedling Growth ◽

Root Length ◽

Seedling Emergence ◽

Germination Percentage ◽

Total Root Length ◽

Garden Cress ◽

Pine Tree ◽

Emergence Percentage ◽

Seed Propagation

Wood-based substrates are a viable option for producing crops in containers, but seed propagation in such substrates has not been sufficiently examined. Seed germination and seedling development in processed whole pine tree (Pinus taeda L.) substrates were evaluated using the Phytotoxkit and seedling growth tests. Substrates compared using the Phytotoxkit included a reference soil, aged (WPTA) and fresh (WPTF) whole pine tree, aged (PNA) and fresh (PNF) pine needles, pine bark (PB), peat moss (PM), and saline pine bark (SPB). Substrates evaluated using the seedling growth test included WPTA, WPTF, PB, and a peat-lite (PL) substrate. Seed germination percentage and total root length were evaluated for garden cress (Lepidium sativum L.), white mustard (Sinapis alba L.), and sorghum [Sorghum bicolor (L.) Moench] in repeated Phytotoxkit experiments (2010 and 2011). Seed germination percentage was lowest for garden cress in PNF, but similar among all substrates for white mustard and sorghum. Total root length was similar or greater in WPTA compared with PM for all species. Seedling emergence percentage and total root length were evaluated for lettuce (Lactuca sativa L.), tomato (Solanum lycopersicum L.), and oat (Avena sativa L.) in repeated seedling growth experiments (2010 and 2011). Seedling emergence percentage varied among substrates and was substantially greater in PL and WPTA compared with PB and WPTF in 2010. Total root length was greatest in PL compared to the other substrates for all species in both years. In addition, PL had significantly lower air space and greater container capacity compared with the other substrates.

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EMERGENCE AND SEEDLING GROWTH OF INBRED LINES OF CORN AT SUBOPTIMAL ROOT-ZONE TEMPERATURES

Canadian Journal of Plant Science ◽

10.4141/cjps87-059 ◽

1987 ◽

Vol 67 (2) ◽

pp. 409-415 ◽

Cited By ~ 8

Author(s):

A. MENKIR ◽

E. N. LARTER

Keyword(s):

Zea Mays ◽

Seedling Growth ◽

Root Zone ◽

Seedling Emergence ◽

Correlation Coefficients ◽

Dry Weight ◽

Inbred Lines ◽

Root Zone Temperature ◽

Emergence Percentage ◽

Zone Temperature

Based on the results of an earlier paper, 12 inbred lines of corn (Zea mays L.) were evaluated for emergence and seedling growth at three controlled root-zone temperatures (10, 14, and 18 °C). Low root-zone temperatures, 10 and 14 °C, were detrimental to emergence, seedling growth, and root growth of all inbred lines. Differential responses of inbred lines were observed within each temperature regime. The differences in seedling emergence among lines became smaller with increasing root-zone temperature, while the reverse was true for seedling dry weight. Simple correlation coefficients showed a significantly (P = 0.05) negative association between emergence percentage and emergence index (rate). Neither of these two emergence traits was significantly correlated with seedling dry weights. Seedling dry weights were significantly (P = 0.01) and positively associated with root dry weights. Two inbred lines exhibited good tolerance to low root-zone temperatures, viz. CO255 and RB214. A significant and positive correlation existed between emergence percentage at a root-zone temperature of 10 °C and field emergence in test with the same genotypes reported earlier. Selection at a root-zone temperature of 10 °C for a high percentage of seedling emergence, therefore, could be effective in identifying genotypes capable of germinating in cool soils. Furthermore, the significantly (P = 0.01) positive relationship between seedling dry weights at all root-zone temperatures and those from the field test suggest that strains with vigorous seedling growth in the field could be identified using low root-zone temperature regimes.Key words: Zea mays, root-zone temperature, cold tolerance

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Factors affecting Cyperus difformis seed germination and seedling emergence

Planta Daninha ◽

10.1590/s0100-83582013000400008 ◽

2013 ◽

Vol 31 (4) ◽

pp. 823-832 ◽

Cited By ~ 7

Author(s):

A. Derakhshan ◽

J. Gherekhloo

Keyword(s):

Seed Germination ◽

Integrated Management ◽

Germination Rate ◽

Seedling Emergence ◽

Management Strategies ◽

Soil Surface ◽

Weed Species ◽

Factors Affecting ◽

Cyperus Difformis ◽

Emergence Patterns

Specific knowledge about the dormancy, germination, and emergence patterns of weed species aids the development of integrated management strategies. Laboratory studies were conducted to determine the effect of several environmental factors on seed germination and seedling emergence of Cyperus difformis. Germination of freshly harvested seeds was inhibited by darkness; however, when seeds were subsequently transferred to complete light they germinated readily. Our results showed that 2 wk of cold stratification overcome the light requirement for germination. Seeds of C. difformis were able to germinate over a broad range of temperatures (25/15, 30/20, 35/25, and 40/30 ºC day/night). The response of germination rate to temperature was described as a non-linear function. Based on model outputs, the base, the optimum and the ceiling temperatures were estimated as 14.81, 37.72 and 45 ºC, respectively. A temperature of 120 ºC for a 5 min was required to inhibit 50% of maximum germination. The osmotic potential and salinity required for 50% inhibition of maximum germination were -0.47 MPa and 135.57 mM, respectively. High percentage of seed germination (89%) was observed at pH=6 and decreased to 12% at alkaline medium (pH 9) pH. Seeds sown on the soil surface gave the greatest percentage of seedling emergence, and no seedlings emerged from seeds buried in soil at depths of 1 cm.

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