Imbibition curve in forest tree seeds and the triphasic pattern: theory versus practice

2022 ◽  
Vol 144 ◽  
pp. 105-114
Author(s):  
Wilson Vicente Souza Pereira ◽  
Anderson Cleiton José ◽  
Olívia Alvina Oliveira Tonetti ◽  
Lucas Amaral de Melo ◽  
José Marcio Rocha Faria
Keyword(s):  
Forest Tree ◽  
Pattern Theory ◽  
Theory Versus ◽  
Tree Seeds ◽  
Triphasic Pattern

scholarly journals Alterations in the lipid and soluble sugar content of melanoxylon brauna seeds during natural and accelerated ageing

2010 ◽  
Vol 32 (3) ◽  
pp. 152-162 ◽  
Author(s):  
Viviana Borges Corte ◽  
Eduardo Euclydes de Lima e Borges ◽  
José Francisco de Carvalho Gonçalves ◽  
Mirian Sousa Silva
Keyword(s):  
Fatty Acids ◽  
Tropical Forest ◽  
Sugar Content ◽  
Soluble Sugar ◽  
Soluble Sugars ◽  
Forest Tree ◽  
Accelerated Ageing ◽  
Natural Ageing ◽  
Metabolic Reactions ◽  
Tree Seeds

The decay of seeds is irreversible and at best can only be delayed by applying techniques that reduce the velocity of the metabolic reactions involved. There is little information on the biochemistry of tropical forest tree seeds related to their storability. It was investigated the influence of the composition of lipids and soluble sugars of two storage compartments, the cotyledons and the embryonic axis, of Melanoxylon brauna Schot. (Leguminosae- Caesalpinioideae), a hardwood known as black brauna, seeds stored at 20 ºC for 0, 3, 6, 9 and 12 months (natural ageing) and for 0, 24, 48, 72 and 96 hours at 40 ºC (accelerated ageing). The levels of fatty acids and monosaccharides varied differentially in each of the embryo storage compartments. Changes in oligosaccharide levels were similar for both types of ageing, diminishing in both compartments. Ageing can be attributed to the significant decrease of oligosaccharides and the increase of glucose in both types of ageing and both embryo compartments.

scholarly journals Are traded forest tree seeds a potential source of nonnative pests?

2019 ◽  
Vol 29 (7) ◽  
Author(s):  
Iva Franić ◽  
Simone Prospero ◽  
Martin Hartmann ◽  
Eric Allan ◽  
Marie‐Anne Auger‐Rozenberg ◽  
...  
Keyword(s):  
Forest Tree ◽  
Potential Source ◽  
Tree Seeds

PEAT MATS FOR GERMINATION TESTS OF FOREST TREE SEEDS

Science ◽  
1932 ◽  
Vol 76 (1983) ◽  
pp. 627-628
Author(s):  
P. C. Wakeley
Keyword(s):  
Forest Tree ◽  
Tree Seeds

scholarly journals Cryopreservation of Forest Tree Seeds: A Mini-Review

2016 ◽  
Vol 32 (3) ◽  
pp. 311-322 ◽  
Author(s):  
Saikat Gantait ◽  
Suprabuddha Kundu ◽  
Shabir Hussain Wani ◽  
Prakash Kanti Das
Keyword(s):  
Forest Tree ◽  
Tree Seeds

Seed survival in Chilean Nothofagus in response to desiccation and storage

2005 ◽  
Vol 15 (2) ◽  
pp. 113-123 ◽  
Author(s):  
Pedro León-Lobos ◽  
Richard H. Ellis
Keyword(s):  
Moisture Content ◽  
Seed Quality ◽  
Seed Viability ◽  
Seed Storage ◽  
Forest Tree ◽  
Ex Situ ◽  
Hermetic Storage ◽  
Moisture Contents ◽  
Tree Seeds ◽  
Initial Seed

Nothofagus alpina,N. obliqua,N. glauca,N. leonii,N. dombeyiandN. pumilioseeds exhibited consistent, albeit slight, sensitivity to extreme desiccation, but nevertheless maintained viability at low moisture contents and cool temperatures (–10° to –20°C) over 2 years.Nothofagus alpina,N. obliqua,N. glauca,N. leoniiandN. dombeyiconformed to the seed viability equation of Ellis and Roberts; sensitivity of longevity to temperature was quantitatively similar to that of crop seeds, sensitivity to moisture was somewhat less, and a low-moisture-content limit to the equation was detected at 4.8% moisture content in hermetic storage at 65 °C, and possibly similar moisture contents at 30–40°C. These five species show orthodox seed storage behaviour. Therefore,ex-situconservation of theseNothofagusspecies in seed banks is possible, but the quality of seed lots collected requires attention. Seed storage behaviour was not defined inN. pumilio: initial seed quality was poor and loss of viability was detected over 2 years at 0°, –10° and –20°C at 2.7% moisture content, but not at 5.2%. The results confirm that the economy of nature in seed storage physiology extends to forest tree seeds, but the repeated observation of reduced sensitivity of longevity to moisture in forest tree seeds requires further investigation.

scholarly journals Analisis Pola Kemitraan Bibit Albesia antara CV Flora Bali di Kabupaten Karangasem dengan UD Tunas Jaya di Kabupaten Klungkung

2018 ◽  
pp. 562
Author(s):  
MADE NGURAH SABDA WINAYA ◽  
NI WAYAN PUTU ARTINI ◽  
PUTU UDAYANI WIJAYANTI
Keyword(s):  
Forest Tree ◽  
Business Partner ◽  
Governmental Organizations ◽  
Business Partnership ◽  
Non Governmental Organizations ◽  
Depth Interview ◽  
Quantitative Data Analysis ◽  
Tree Seeds ◽  
Business Entities ◽  
Forest Plants

Analysis of Albesia Seed Pathership Pattern Between CV Flora Bali in Karangasem Regency with UD Tunas Jaya in Klungkung Regency Cultivation of forest crops can involve various parties, among others, business entities, government, non-governmental organizations and private parties One of the private parties who market forest tree seeds is UD Tunas Jaya. Business partnership relationship between UD Tunas Jaya with CV. Flora Bali in its journey there has been no further analysis of the mechanism of partnership and what benefits have been obtained. This study aims to determine the pattern of partnership business seeds of forest plants between CV. Flora Bali with UD.Tunas Jaya in Pempatan Village, Rendang Sub-district, Karangasem Regency. This research is descriptive conducted at CV Flora Bali and Tunas Jaya by collecting data through in-depth interview and observation. Quantitative data analysis is done by using analysis of farming. The result of the research shows the partnership pattern that has been done between CV Flora Bali and UD Tunas Jaya in the form of Subcontract which is the pattern of partnership relationship between the business partner company that is UD Tunas Jaya with the business partner that produces the seed of forest plant that is CV Flora Bali. The distinctive feature of this subcontract partnership form is to make a joint contract that includes volume, price and time. CV Flora Bali with UD Tunas Jaya in the subcontract partnership pattern is the increase of productivity, labor efficiency and time, the seeds produced in the quality, quantity, and continuity are acceptable to the consumer, social relationships, and increase the income and welfare for the perpetrator Partnership.

Detection of Fungal Pathogens Associated with Forest Tree Seeds

2016 ◽  
Vol 35 (2) ◽  
pp. 46
Author(s):  
PR Patel ◽  
HV Pandya ◽  
ND Mehta
Keyword(s):  
Fungal Pathogens ◽  
Forest Tree ◽  
Tree Seeds
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