scholarly journals Ultra-Sonic Sound Applications Used in Seed Viability, Seedling Growth and Plant Development of Ornamentals

2021 ◽  
Author(s):  
Fazilet PARLAKOVA KARAGÖZ ◽  
Atilla DURSUN
Keyword(s):  
Seedling Growth ◽  
Plant Development ◽  
Seed Viability

scholarly journals Variation of seed sizes and its effect on germination and seedling growth of mahogany (Swietenia macrophylla)

2019 ◽  
Vol 20 (9) ◽  
Author(s):  
AGUS ASTHO PRAMONO ◽  
DIDA SYAMSUWIDA ◽  
Kurniawati Purwaka Putri
Keyword(s):  
Seed Size ◽  
Seedling Growth ◽  
Germination Rate ◽  
Fruit Size ◽  
Seed Viability ◽  
Initial Growth ◽  
Seed Selection ◽  
Swietenia Macrophylla ◽  
Seed Collection ◽  
Growth Of Seedlings

Abstract. Pramono AA, Syamsuwida D, Putri KP. 2019. Variation of seed sizes and its effect on germination and seedling growth of mahogany (Swietenia macrophylla). Biodiversitas 20: 2576-2582. To get high-quality seeds, the size of seed is often suggested to be criteria of selection in seed collection. However, the size is not always effective to be used as a basis for seed selection. The study is aimed to determine the variation of mahogany (Swietenia macrophylla) seed sizes and its effect on the germination and seedlings growth. The fruits were collected from stands of mahogany in Jonggol and Parung Panjang, Bogor District, Indonesia. The seeds were grouped into 5 classes based on seed size. The observation was conducted on seed viability of each size class as well as the growth of seedlings until 3 months old. The results showed that the seed size of mahogany was affected by position of the seeds inside the fruit, the mother trees, and fruit size. The seeds size of < 6 cm long had significantly lower germination rate and capacity than those seeds of more than 6 cm long. The size of seeds affected the initial growth of seedlings, but did not influence the subsequent growth of seedling after 3 months old. The selection of seeds was done by removing the seeds of less than 6 cm long.  

scholarly journals Perkecambahan dan pertumbuhan benih tomat (Solanum lycopersicum) akibat perlakuan berbagai dosis NaOCl dan metode pengeringan

2018 ◽  
Vol 2 (1) ◽  
pp. 68
Author(s):  
Denanda Purba ◽  
Endang Dwi Purbajanti ◽  
Karno Karno
Keyword(s):  
Growth Rate ◽  
Plant Growth ◽  
Seedling Growth ◽  
Seed Viability ◽  
Leaf Size ◽  
Variance Analysis ◽  
Growth Potential ◽  
Drying Methods ◽  
Drying Method ◽  
Tomato Seed

 The purpose of the research was to study the concentration of NaOCl and drying method during the extraction process for germination and growth of tomato seedlings. This study used Completely Randomized Design with two factors with three replicates. The first factor was soaking the seeds with NaOCl concentrations: NaOCl 0% (control), NaOCl 6%, NaOCl 9% and NaOCl 13%. The second factor was the drying methods: without drying (control), natural drying and drying using oven. The parameters observed were germination, seed growth rate, maximum growth potential, leaf size, leaf area, plant height, plant growth rate and relative plant growth rate. The data were analyzed using variance analysis and continued by Duncan Multiple Range Test (DMRT) of 5%. The result of variance analysis showed that immersion treatment using NaOCl and drying method had not given interaction during seed germination and seedling growth. Soaking with 9% NaOCl showed the best result of germination process and seedling growth whereas the best drying method was naturally because it did not cause impermeability of seeds. Keyword : Tomato, seed, drying, NaOCl, seed viability

scholarly journals The vigour of timothy (Phleum pratense L.) seeds stored up to 5 years

2014 ◽  
Vol 58 (2) ◽  
pp. 263-272 ◽  
Author(s):  
Ryszard J. Górecki ◽  
Dorota Mierzejewska
Keyword(s):  
Growth Rate ◽  
Osmotic Stress ◽  
Seedling Growth ◽  
Stress Test ◽  
Seed Viability ◽  
Phleum Pratense ◽  
Accelerated Ageing ◽  
Ambient Conditions ◽  
Rate Analysis ◽  
Seedling Growth Rate

The viability and vigour of timothy seeds from the 1982, 1983, 1984, 1985 and 1986 harvests, stored in a store-house under ambient conditions were studied. During five years of storage, seed viability dropped from 90-95% to below 15%. The greatest fall in viability occurred between the 4th and 5th year of storage. Seed viability loss was accompanied by rapid vigour degradation as indicated by soil emergence, seedling growth rate analysis, osmotic stress, ethanol, and accelerated ageing (AA-test) tests. The conductivity test was not useful in timothy vigour examination. The highest correlation coefficients between vigour tests and field emergence were obtained for the seedling growth rate analysis and osmotic stress test.

Stevia rebaudiana (Bert.) Bertoni: Stages of plant development

2007 ◽  
Vol 87 (4) ◽  
pp. 861-865 ◽  
Author(s):  
José Walter Pedroza Carneiro
Keyword(s):  
Plant Growth ◽  
Key Words ◽  
Seedling Growth ◽  
Plant Development ◽  
Stevia Rebaudiana ◽  
Numerical Code ◽  
Flower Buds ◽  
Developing Seeds ◽  
Lower Case ◽  
Seed Dispersion

Vegetative and reproductive codes were developed to describe seeds under germination, normal seedlings, seedling growth, plant growth and branching, plant regrowth, flower buds, crop flowering (anthesis), developing seeds, seed dispersion, and senescent plants as V0, V1.i, V2.i, V3.i.k, V4.i.k, R1.i, R2.i, R3.i, R4.i and R5.i, respectively. The numerical code attached to both capital letters indicates the stage, and the lower case letters i or k indicate a number or a percentage. Key words: Natural sweetener, plant regrowth, anthesis, seed, seedling, transplant

scholarly journals Viabilitas benih dan pertumbuhan bibit kakao (Theobroma cacao L) pada beberapa jenis media simpan dan tingkat kelembaban

2017 ◽  
Vol 1 (3) ◽  
pp. 135
Author(s):  
Dian Wirawan Tambunsaribu ◽  
Syaiful Anwar ◽  
Dwi Retno Lukiwati
Keyword(s):  
Moisture Content ◽  
Seedling Growth ◽  
Germination Rate ◽  
Seed Viability ◽  
Dry Weight ◽  
Humidity Level ◽  
Storage Media ◽  
Vigor Index ◽  
Combined Use ◽  
Germination Vigor

The research aimed to study the effect of type and humidity level of storage media and teir interaction on cacao seed viability and seedling growth. The experiment was arranged in a completely randomized factorial design 3 x 4 with three replications. The first factor is the type of storage media (P) which is control (P0), charcoal shell (P1), and sawdust (P2).  The second factor is the humidity content of storage media (K) which is control (K0), moisture content 15% (K1), moisture content 30% (K2), moisture content 45% (K3). Parameters observed were seeds moisture content, electrical conductivity (EC), seed germination, germination vigor, germination rate,  height of seedling, leaf number of seedling, dry weight of seedling and hypothetic vigor index of seedling. Data were analyzed by anova and followed Duncan’s Multiple Range Test (DMRT). The treatments of charcoal shell and sawdust gave not significant effect to cacao seed viability and seedling growth, but it’s interactions gives significan effect the observed parameters. Combined use of  charcoal shell storage media with humidity content 30% gives the highest result to cacao seed viability and seedling growth after storage.Keywords : seed viability, storage media, humidity level and cacao

Collection Age and Seed Mass Influence Germination and Seedling Growth in Midwestern White Spruce Accessions

2021 ◽  
Author(s):  
Brian M Connolly
Keyword(s):  
Growth Rate ◽  
Seedling Growth ◽  
Seed Mass ◽  
Seed Viability ◽  
Germplasm Conservation ◽  
White Spruce ◽  
Seedling Vigor ◽  
Nursery Production ◽  
Seedling Growth Rate ◽  
Unites States

Abstract Stored tree seed collections are essential resources for seedling production and conserving unique germplasm. As stored seeds age, however, seed viability and seedling vigor can decline. This study tests how age and seed mass correspond to germination dynamics and seedling vigor in four white spruce collections from the upper midwestern Unites States. Using two seedling growth experiments, this study demonstrates that white spruce seeds stored for &gt;30 years have low seed viability and slower seedling growth rates compared with seeds from more recent (≤10 years) white spruce collections. Seed mass also predicted seedling growth rate regardless of collection age, suggesting larger seeds from older collections generate faster growing seedlings. Study Implications: Efficient use of stored tree seeds saves nursery managers time and resources. White spruce is a collection priority, but management needs to know how seed viability and seedling vigor decline during storage. Diminished germination and seedling growth after &gt;30 years in storage suggests older collections are most appropriate for germplasm conservation and underscore the importance of testing stored seed prior to nursery production. For collections stored &lt;10 years, larger seeds germinate more readily than smaller seeds and produce faster growing seedlings. For older collections, seed mass does not correspond with germination, but seedling growth rate positively correlated with seed mass.

scholarly journals Effect of different conditions of storage on seed viability and seedling growth of six European wild fruit woody plants

2020 ◽  
Vol 77 (2) ◽  
Author(s):  
Mikołaj Krzysztof Wawrzyniak ◽  
Marcin Michalak ◽  
Paweł Chmielarz
Keyword(s):  
Seedling Growth ◽  
Prunus Avium ◽  
Seedling Emergence ◽  
Seed Viability ◽  
Storage Conditions ◽  
Sorbus Aucuparia ◽  
Prunus Padus ◽  
Wild Fruit ◽  
Malus Sylvestris ◽  
Physiological Dormancy

Abstract Key message Malus sylvestris(L.) Mill.,Pyrus communis(L.),Sorbus aucuparia(L.),Prunus avium(L.),Prunus padus(L.), andCornus sanguinea(L.) are related, co-occurring species producingorthodoxseeds. However, we observed differences in their response to storage conditions, such as storage at different seed moisture contents (5%, 8%, and 11%) and/or temperatures (− 3 °C, − 18 °C, and − 196 °C). Severe desiccation to ca. 5% of MC negatively affected seeds ofM. sylvestris. Seeds ofP. aviumwere sensitive to storage in LN or at − 18 °C.S. aucupariaseeds are best stored at − 3 °C, whereasC. sanguineaseeds tolerate desiccation and storage in LN. In general, species with deeper physiological dormancy (S. aucuparia,P. padus, andC. sanguinea) tended to be more tolerant to desiccation and low temperatures. For all species, storage conditions did not affect seedling growth. Context Wild fruit woody species face many threats such as genetic loss, population fragmentation, and alien species; thus, their genetic variability should be preserved. Aims To examine the effect of storage conditions on seed viability and the initial growth of seedlings of six European wild fruit species: Malus sylvestris (L.) Mill., Pyrus communis (L.), Sorbus aucuparia (L.), Prunus avium (L.), Prunus padus (L.), and Cornus sanguinea (L.). Methods Seeds were desiccated to three different levels of moisture content (ca. 5, 8, or 11%) and stored at three different temperatures (− 3°, − 18°, or − 196 °C; liquid nitrogen, LN) for up to 3 years. Germination and seedling emergence tests were performed as well as measurement of seedling growth. Results Desiccation of M. sylvestris seeds from 10.7 to 4.9% significantly lowered germination from 91 to 77% and seedling emergence from 88 to 74%. In P. avium, LN storage significantly inhibited seedling emergence, both in the laboratory and the greenhouse, but did not affect total seed germination. In P. communis, P. padus, and C. sanguinea, neither germination nor seedling emergence was affected by seed storage conditions. There were small or no differences in stem height and root collar diameter in the first year of seedling growth of stored seeds. Conclusion Species with deeper physiological dormancy (S. aucuparia, P. padus, C. sanguinea) tended to be more tolerant of various storage conditions. Seeds of P. padus and C. sanguinea can be stored long term at − 18 °C or in LN at 5–8% MC without losing viability. M. sylvestris and P. avium seeds are sensitive to desiccation below 6% MC or low temperature of storage at − 18 °C or − 196 °C, respectively. We observed that storage conditions had significant influence on germination and seedling emergence but had no effect on seedling growth after the first growing season.

scholarly journals Determination of Postharvest Pod Storage on Viability and Seedling Growth Performance of Cocoa (Theobroma cacao L) in the Nursery

2014 ◽  
Vol 6 (4) ◽  
pp. 77 ◽  
Author(s):  
Joseph Kofi Saajah ◽  
Bonaventure Kissinger Maalekuu
Keyword(s):  
Growth Performance ◽  
Seedling Growth ◽  
Seed Viability ◽  
Storage Period ◽  
Internode Length ◽  
Superior Performance ◽  
Dry Matter Accumulation ◽  
Storage Container ◽  
Two Factors ◽  
Vigour Index

This research was conducted to determine how cocoa pod storage affects seed viability, when stored in containers for a specific period. The objectives were to determine the maximum storage period for maximum seed viability, determine the ideal storage container for maximum germination and finally determine the superior growth performance of the seedlings obtained. The design was a Randomized Complete Block Design (RCBD) in a factorial arrangement involving two factors: storage period and storage container. This arrangement produced interactions between the two factors and increased precision due to “Hidden replication”. Podwere randomly drawn at 5 daily intervals and seed sowed to determine viability through sixteen (16) parameters, which included time to start and end germination, germination percentage, stem girth, canopy spread, shoot length and vigour index. The results generated from this experiment were in respect of interactions and simple effects of the two factors, on viability and seedling growth performance. Interaction effects were pronounced on five parameters which included time taken to start and end germination; vigour index; shoot height and leaf area. Germination speed and percentage were also significantly influenced by storage period. For growth parameters, superior performance (p<0.05), was obtained for variables such as leaves per plant, petiole length, internode length, within 1 day of harvest (DOH)-15 days after harvest (DAH) period. In respect of the type of container used for storage, internode length and dry matter accumulation were significantly influenced. Storage temperature and relative humidity did not affect the results. Pods stored from 1-15 DAH in basket, jute sack or fertilizer sack had maximum viability.

scholarly journals Invigorasi benih tomat kadaluarsa dengan ekstrak bawang merah pada berbagai konsentrasi dan lama perendaman

2018 ◽  
Vol 3 (4) ◽  
pp. 175-184
Author(s):  
Rahmat Rivai Lubis ◽  
Trisda Kurniawan ◽  
Zuyasna Zuyasna
Keyword(s):  
Seedling Growth ◽  
Significant Interaction ◽  
Seed Viability ◽  
Tomato Seed ◽  
Onion Extract ◽  
Tomato Seeds ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Unit Unit ◽  
Banda Aceh

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh konsentrasi dan lama perendaman ekstrak bawang merah serta interaksi keduanya terhadap viabilitas benih tomat kadaluarsa. Penelitian ini dilaksanakaan di Laboratorium Ilmu dan Teknologi Benih Jurusan Agroteknologi Fakultas Pertanian Universitas Syiah Kuala, Banda Aceh dari bulan April sampai Juni 2018. Unit-unit penelitian disusun berdasarkan Rancangan Acak Lengkap pola faktorial 5x3 dengan 3 ulangan dan dilanjutkan dengan uji Beda Nyata Jujur taraf 5% pada hasil uji F yang signifikan. Faktor pertama adalah konsentrasi ekstrak bawang merah dengan 5 taraf yaitu 0, 25, 50, 75 dan 100%, sedangkan faktor kedua adalah lama perendaman dengan 3 taraf yaitu 12, 24 dan 36 jam. Hasil penelitian menunjukkan bahwa konsentrasi ekstrak bawang merah terbaik terdapat pada konsentrasi ekstrak bawang merah 25%. Lama perendaman tidak berpengaruh nyata terhadap tolok ukur pertumbuhan bibit. Tidak terjadi interaksi yang nyata antara konsentrasi ekstrak bawang merah dan lama perendaman terhadap tolok ukur pertumbuhan bibit.Invigoration of Expired Tomato Seeds with Onion Extract at Various Concentrations and Soaking DurationsAbstract. The purpose of this research was to investigate the effect of onion concentration and soaking duration and interaction between them on the expired tomato seed viability. The research was conducted at the Laboratory of Seed Science and Technology Department of Agrotechnology Faculty of Agriculture, Syiah Kuala University, Banda Aceh from April to June 2018. Treatment units were arranged according to Factorial Completely Randomized Design 5x3 in 3 replications, and the significant data than continued analized by Honestly Significant Different. The first factor was the concentrations of extract onion i.e 0, 25, 50, 75 and 100%, and the second factor was durations of soaking i.e 12, 24 and 36 hours. The result showed the best concentration for invigoration was 25% of onion extract. Soaking duration does not have a significant effect on seedling growth. There is no significant interaction between the concentration of onion extract and soaking duration on seedling growth.

scholarly journals Does Storage under Gene Bank Conditions Affect Seed Germination and Seedling Growth? The Case of Senecio morisii (Asteraceae), a Vascular Plant Exclusive to Sardinian Water Meadows

Plants ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 581 ◽  
Author(s):  
Alba Cuena-Lombraña ◽  
Martina Sanna ◽  
Marco Porceddu ◽  
Gianluigi Bacchetta
Keyword(s):  
Seedling Growth ◽  
Seedling Survival ◽  
Vascular Plant ◽  
Seed Viability ◽  
Storage Conditions ◽  
Growth And Survival ◽  
Survival Percentage ◽  
Long Term Storage ◽  
Term Storage

Understanding seed viability under long-term storage conditions provides basic and useful information to investigate the effectiveness of seed banking. Besides the germination success, seedling establishment is also an important requirement, and a decisive step to ensure plant propagation. We used comparative data of germination, seedling growth, and survival percentage between fresh and 10-years-stored seeds of Senecio morisii, a narrow endemic and vulnerable species of Sardinia (Italy), in order to evaluate if differences exist in these traits between fresh and 10-years-stored seeds. Stored seeds showed higher germination percentages than fresh ones, whereas seedling growth and survival did not present significant differences between them, except for seedling growth in plants produced from seeds germinated at 25 °C. This study allowed us to assess if seeds of S. morisii were able to germinate under controlled conditions, and if they maintained their viability and germination capacity for at least 10 years of long-term storage in the seed bank. In addition, the high seedling survival detected in both fresh and stored seeds suggests that stored seeds of S. morisii can be used to support reinforcement or reintroduction actions when fresh materials are not available.

Sign in / Sign up

Export Citation Format

Share Document