Morphological attributes of oriental spruce [ Picea orientalis (L.) Link.] seedlings grown in peat-based media amended with natural zeolite

2007 ◽  
Vol 55 (3) ◽  
pp. 363-373
Author(s):  
S. Ayan ◽  
F. Tilki
Keyword(s):  
Natural Zeolite ◽  
Dry Weight ◽  
Growth Media ◽  
Shoot Height ◽  
Morphological Attributes ◽  
Shoot Dry Weight ◽  
Medium Components ◽  
Collar Diameter ◽  
Root Collar ◽  
Oriental Spruce

This study was designed to investigate the influence of growth media consisting of different components on the morphological attributes of oriental spruce seedlings. Eighteen different combinations of Barma peat (BP), tea residue compost (CTR), fine pumice (FP), coarse pumice (CP), perlite (P) and zeolite (Z) were prepared as growth media.The growth medium components did not significantly affect the shoot height (SH), root collar diameter (RCD), shoot:root ratio or dry root percentage (DRP) of 2-year-old seedlings. However, the root dry weight (RDW) and shoot dry weight (SDW) showed significant differences between the different growth media. The maximum SDW (3.244 g) was determined for a mixture of BP (0.5) + CTR (0.2) + CP (0.2) + Z (0.1), while a mixture of BP (0.6) + P (0.2) + Z (0.2) resulted in minimum SDW (1.593 g). In addition, the maximum RDW (1.824 g) was determined for the BP (0.5) + CTR (0.2) + CP (0.2) + Z (0.1) medium, while the BP (0.6) + CP (0.2) + Z (0.2) medium resulted in the lowest RDW (1.013 g). The addition of zeolite to the growth media increased the SDW and RDW of oriental spruce seedlings, so natural zeolite could be used as a substrate to replace pumice and perlite in nurseries in Turkey. Since Turkey has 45.8 billion tonnes of zeolite, its use in nurseries could reduce the costs significantly.

scholarly journals Sewage sludge and rice husk as potential substrate to produce Mimosa setosa seedlings

2020 ◽  
Vol 7 (3) ◽  
pp. 1111-1119
Author(s):  
Julio Cezar Tannure Faria ◽  
Marcos Vinícius Winckler Caldeira ◽  
William Macedo Delarmelina ◽  
Erick Martins Nieri ◽  
Denys Santana Souza ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Rice Husk ◽  
Dry Matter ◽  
Weight Ratio ◽  
Dry Weight ◽  
Root Collar Diameter ◽  
Root Dry Weight ◽  
Shoot Dry Weight ◽  
Collar Diameter ◽  
Root Collar

In the production of forest seedlings one of the main factors to be analyzed is the formulation of the substrate that meets the needs of the plants that will be produced. For this, the choice of substrate must consider the physical characteristics of the material, its chemical composition, as well as its availability, quality, easy handling and cost. This study aimed to investigate the potential of sewage sludge and rice husk for the production of seedlings of Mimosa setosa. The experiment was conducted in structures of a forest nursery, localized in the municipality of Alegre-ES, in 110 cm³ tubes arranged in a completely randomized design constituted by ten treatments with four replications of 54 seedlings per plot. The treatments were formulated using sewage sludge, raw rice husks and carbonized rice husk. At five months after sowing we measured plant height, root collar diameter, height/diameter ratio, shoot dry weight, root dry weight, total dry matter, shoot to root dry weight ratio and Dickson Quality Index. The substrates formulated with carbonized rice husk promoted the best results for all morphological characteristics analyzed. The multivariate analysis showed higher correlation of treatments with carbonized rice husk (T6, T7, T8 and T9) regarding height, root collar diameter, root dry weight, shoot dry weight and total dry matter. For the production of Mimosa setosa seedlings the best responses resulted from the substrate formulated with 60% sewage sludge + 40% carbonized rice husk.

scholarly journals Controlled-Release Fertiliser and Substrates on Seedling Growth and Quality in Agonandra brasiliensis in Roraima

2020 ◽  
Vol 8 (3) ◽  
pp. 70 ◽  
Author(s):  
Aline das Graças Souza ◽  
Oscar José Smiderle ◽  
Raiovane Araújo Montenegro ◽  
Thiago Komuro Moriyama ◽  
Thiago Jardelino Dias
Keyword(s):  
Controlled Release ◽  
High Standard ◽  
Dry Weight ◽  
Organic Substrate ◽  
Shoot Height ◽  
Shoot Dry Weight ◽  
Slow Development ◽  
Collar Diameter ◽  
Total Dry Weight

The aim of this study was to verify the effect of different substrates, in the presence and absence of controlled-release fertiliser, on the growth and morphological quality of seedlings of Agonandra brasiliensis Miers ex Benth. & Hook.f., in the state of Roraima, Brazil. The experimental design was a 2 * 5 factorial scheme, with and without the addition of 1.0 g L-1 NPK 18-05-09 formulation controlled-release encapsulated fertiliser (Forth CoteR) and five substrates. The following were evaluated: shoot height (H), collar diameter (CD), increase in shoot length (IncH) and collar diameter (IncCD), shoot dry weight (SDW), root dry weight (RDW), total dry weight (TDW) and Dickson quality index (DQI). The use of NPK 18-05-09 formulation controlled-release fertiliser (Forth CoteR) in a medium-sand substrate is recommended for obtaining plants of Agonandra brasiliensis of greater robustness, balance of biomass distribution, and a high standard of quality. In the substrate composed of soil from the cerrado + carbonised rice husks - CRH + organic substrate (2:1:1), the addition of NPK 18-05-09 formulation Forth CoteR is not necessary to obtain Agonandra brasiliensis plants of good morphological quality. Substrate 3, composed of soil + CRH (3:1), with or without the addition of NPK 18-05-09 formulation Forth CoteR, is not recommended for producing plants of Agonandra brasiliensis, due to the slow development and reduced morphological quality of the plants.

scholarly journals Seedling Growth of Tectona grandis using Different Potting Mixture

2021 ◽  
pp. 17-24
Author(s):  
G. E. Omokhua ◽  
C. Fredrick ◽  
C. N. Okakpu
Keyword(s):  
Seedling Growth ◽  
Growth Parameters ◽  
Tectona Grandis ◽  
Dry Weight ◽  
Leaf Number ◽  
Cow Dung ◽  
Root Collar Diameter ◽  
Shoot Dry Weight ◽  
Collar Diameter ◽  
Root Collar

Aims: This study evaluated the influence of 11 potting media compositions on seedling growth and development of Tectona grandis. Study Design: The experiment was set up in a completely randomized design involving ten replicates. Place and Duration of Study: The study was carried out at the Department of Forestry and Wildlife Management Nursery, University of Port Harcourt, Rivers State, Nigeria, between April 2019 and April 2020. Methodology: Ten (10) seedlings per sowing media including topsoil, topsoil and cow dung (2:1, 3:1), topsoil and poultry dung (2:1, 3:1), topsoil and pig dung (2.1, 3:1), topsoil and sawdust (2.1, 3:1), topsoil and mushroom substrate (2.1, 3:1) were selected and transplanted into polybags. Growth parameters (seedling height, root collar diameter, leaf number and biomass (shoot dry weight (SDW), root dry weight (RDW) and total dry weight (TDW)) were determined and subjected to analysis of variance. Results: Seedlings of T. grandis displayed significant differences (p ≤ 0.05) in height, root collar diameter, leaf number and biomass. Among treatments, tallest seedlings were observed in mixture of topsoil and poultry dung (3:1), at months 1 to 3 and in mixture of topsoil and cow dung (3:1) at months 4 and 5, highest root collar diameter was observed in mixture of topsoil and poultry dung (3:1) and highest leaf number was recorded in mixture of topsoil and poultry dung (2:1 and 3:1) and topsoil and cow dung (2:1 and 3:1) at months 1 to 5. The highest SDW was evident in mixture of topsoil and poultry dung (2:1) while highest RDW and TDW were observed in mixture of topsoil and cow dung (3:1). Lowest height, diameter, leaf number and biomass were recorded in topsoil (control) at months 1 to 5. Conclusion: The results revealed that among the tested mixtures, topsoil and poultry dung and topsoil and cow dung mixtures were the best for seedlings growth of T. grandis.

scholarly journals Growth of Scots Pine and Silver Birch Seedlings on Different Nursery Container Media

2014 ◽  
Vol 42 (2) ◽  
pp. 565-572
Author(s):  
Fahrettin TILKI ◽  
Tekin MEMISOGLU
Keyword(s):  
Scots Pine ◽  
Dry Weight ◽  
Silver Birch ◽  
Physical Parameters ◽  
Morphological Parameters ◽  
Morphological Attributes ◽  
Shoot Dry Weight ◽  
Medium Components ◽  
Growing Medium ◽  
Total Dry Weight

Peat has been the most common growing medium in tree nurseries, either alone or as a component of growing media mixes. However, as a result of increasing costs and decreasing amount of peat, seedling-growers are seeking more local growing medium components. In this study, container seedlings of Scots pine (Pinus sylvestris L.) and silver birch (Betula pendula Roth) were grown in pure peat and peat mixtures containing perlite and zeolite.  Physical parameters (height, shoot diameter, root dry weight, shoot dry weight, total dry weight) were measured along with several morphological parameters (sturdiness quotient, height/diameter, shoot/root ratio). The zeolite additive in peat changed some media properties, and significant relation was established between some morphological attributes of seedlings and some medium properties in both species. On average, the seedlings grew best in pure peat, but zeolite additions to peat did not affect some morphological parameters negatively. The results suggest that zeolite has potential to be used as a component of peat based growing medium mixtures, and addition of zeolite to peat container medium in proportions of 10% by volume in Scots pine and up to 20% in silver birch was shown to be a feasible material for growing Scots pine and silver birch seedlings.

scholarly journals Genetic parameters for early growth and biomass traits of Pinus radiata D. Don under different water regimes

2013 ◽  
Vol 62 (1-6) ◽  
pp. 110-116 ◽  
Author(s):  
S. Espinoza ◽  
C. R. Magni ◽  
V. Martínez ◽  
M. Ivković ◽  
W. Gapare
Keyword(s):  
Genetic Parameters ◽  
Dry Weight ◽  
Indirect Selection ◽  
Diameter Ratio ◽  
Root Collar Diameter ◽  
Shoot Dry Weight ◽  
Shoot Ratio ◽  
Root Shoot Ratio ◽  
Collar Diameter ◽  
Root Collar

AbstractIn Chile, genetic improvement of Radiata pine has been directed towards characters such as volume, form and wood density. Estimation of genetic parameters for growth and biomass traits in young seedlings, as a tool for early indirect selection in the P. radiata breeding program, has not been explored yet. We aimed to estimate genetic parameters for growth and biomass traits. Five-month-old P. radiata seedlings grown under wellwatered (WW) and water stress (WS) regimes were evaluated. Root collar diameter, height, shoot dry weight, root dry weight, total dry weight, height/diameter ratio and root/shoot ratio were analyzed in both treatments. Trait with the highest heritability was root/shoot ratio in WW and WS regime (h2= 0.80 and 0.63 respectively). The highest genetic correlation was between height and shoot dry weight (rg= 0.90), under WW regime. In contrast, there were negative genetic correlations between root collar diameter and height/diameter ratio under WS regime. To breed for drought tolerance, traits such as height and root collar diameter would be effective targets for indirect selection since estimated heritabilities are high, there is sizable genetic variation, they are easily assessed, they can be measured non-destructively and they have a high genetic correlation with root/shoot ratio, a trait related to drought tolerance. The measurement of dry weights for early selection purposes is not recommended.

scholarly journals Morphology, Physiology, Survival, and Field Performance of Containerized Coastal Douglas Fir Seedlings Given Different Dormancy-induction Regimes

HortScience ◽  
2006 ◽  
Vol 41 (6) ◽  
pp. 1416-1420 ◽  
Author(s):  
Joanne E. MacDonald ◽  
John N. Owens
Keyword(s):  
Seedling Survival ◽  
Dry Weight ◽  
Growing Season ◽  
Moisture Stress ◽  
Root Collar Diameter ◽  
Shoot Dry Weight ◽  
Collar Diameter ◽  
Terminal Buds ◽  
Root Collar ◽  
Dormancy Induction

The effects of different dormancy-induction regimes on first-year containerized coastal Douglas fir [Pseudotsuga menziesii (Mirb.) Franco var. menziesii] seedling morphology and physiology in the nursery, as well as seedling survival and performance after one growing season in a common garden, were investigated. In early July, three dormancy-induction regimes were applied: moderate moisture stress (MS), short day (SD), and short day with moderate moisture stress (SD+MS). In early October, seedling height, root collar diameter, and shoot dry weight were unaffected by regime, but root dry weight was reduced in seedlings from the MS and SD+MS regimes compared with the SD regime. At this time, morphogenesis was completed in all terminal buds of seedlings from both SD regimes, whereas it continued in all terminal buds of seedlings from the MS regime. Furthermore, 25% to 88% of terminal buds from the SD regimes were endodormant, but none from the MS regime were endodormant. In March, budbreak occurred at the same time in seedlings from the two SD regimes and was earlier than in seedlings from the MS regime; root growth capacity was unaffected by regime. After one growing season, there were no regime differences in seedling survival, root collar diameter, shoot dry weight, root dry weight, length of the current-year leader, or number of needles on the leader.

scholarly journals AVOCADO SEEDLINGS MULTIPLE STEMS PRODUCTION

2016 ◽  
Vol 38 (2) ◽  
Author(s):  
MARCUS VINICIUS SANDOVAL PAIXÃO ◽  
JOSÉ CARLOS LOPES ◽  
EDILSON ROMAIS SCHMILDT ◽  
RODRIGO SOBREIRA ALEXANDRE ◽  
CAROLINE MERLO MENEGHELLI
Keyword(s):  
Root Length ◽  
Dry Weight ◽  
Adventitious Rooting ◽  
Dry Mass ◽  
Stem Diameter ◽  
Experimental Unit ◽  
Shoot Height ◽  
Shoot Dry Weight ◽  
Federal Institute ◽  
Multiple Stems

ABSTRACT This study aimed to evaluate the potential of multi-stems in avocado seeds according to their mass as well as the adventitious rooting of multi-stem budding with or without the use of auxin. The research was carried out at the Vegetation House of Federal Institute of Espírito Santo, Campus Santa Teresa -ES, with seeds of different masses: <60 g, 61 to 80 g, 81 to 100 g and >100 g, in which each experimental unit was made of five seeds, distributed within five repetitions, under a completely randomized design. The seeds were put to germinate and the percentage number of emergence and multiple stems were evaluated. After 150 days, the following evaluations were carried out: survival of rooted cuttings; number of leaves; stem diameter; root length; root volume; root and shoot fresh mass; root and shoot dry mass; shoot height; absolute growth and shoot growth rate; shoot dry weight/root dry mass ratio; shoot height/stem diameter ratio; shoot height/root length and Dickson's quality index ratio. Avocado seeds with mass over 100 g and between 81-100 g presented higher percentage of multiple stems. Rods over 20 cm that were not treated with IBA (indole-3-butyric acid) resulted on avocado plants of better quality. The use of IBA (2000 mg L-1) does not affect the rooting and growth of avocado's multi-stem plants.

scholarly journals Reproducibility of suppression of Pythium wilt of cucumber by compost

2014 ◽  
Vol 23 (3) ◽  
pp. 236-245 ◽  
Author(s):  
Mauritz Vilhelm Vestberg ◽  
Sanna Kukkonen ◽  
Päivi Parikka ◽  
Dan Yu ◽  
Martin Romantschuk
Keyword(s):  
Raw Materials ◽  
Dry Weight ◽  
Shoot Height ◽  
Bacterial Diseases ◽  
Sphagnum Peat ◽  
Shoot Dry Weight ◽  
Suppressive Capacity ◽  
The Difference ◽  
Set Up

There is increasing global interest in using compost to suppress soil-borne fungal and bacterial diseases and nematodes. We studied the reproducibility of compost suppressive capacity (SC) against Pythium wilt of cucumber using nine composts produced by the same composting plant in 2008 and 2009. A bioassay was set up in a greenhouse using cucumber inoculated with two strains of Pythium. The composts were used as 20% mixtures (v:v) of a basic steam-sterilized light Sphagnum peat and sand (3:1, v:v). Shoot height was measured weekly during the 5-week experiment. At harvest, the SC was calculated as the % difference in shoot dry weight (DW) between non-inoculated and inoculated cucumbers. The SC was not affected by year of production (2008 or 2009), indicating reproducibility of SC when the raw materials and the composting method are not changed. Differences in shoot height were not as pronounced as those for shoot DW. The results were encouraging, but further studies are still needed for producing compost with guaranteed suppressiveness properties.

scholarly journals Emergence and Shoot Growth of Cosmos and Marigold from Paclobutrazol-treated Seed

2001 ◽  
Vol 19 (1) ◽  
pp. 11-14 ◽  
Author(s):  
Wallace G. Pill ◽  
James A. Gunter
Keyword(s):  
Growth Medium ◽  
Shoot Growth ◽  
Dry Weight ◽  
Tagetes Patula ◽  
Shoot Height ◽  
Shoot Dry Weight ◽  
Grade 5 ◽  
Treated Seed ◽  
Emergence Percentage ◽  
And Control

Abstract This study was conducted to determine whether treating seeds of ‘Sensation Mixed’ cosmos (Cosmos bipinnatus Cav.) and ‘Bonanza Gold’ marigold (Tagetes patula L.) with paclobutrazol (PB) could suppress seedling growth. Seeds were soaked in solutions of 0, 500 or 1000 mg PB/liter (ppm PB) for 16 hours at 25C (77F) or they were primed [−0.5 MPa (−5 bars) for 7 days at 20C (68F)] in Grade 5 exfoliated vermiculite moistened with 0, 500 or 1000 ppm PB solltuions. Soaked and primed seeds were dried for 1 day at 19C (65F) and 25% relative humidity. These seeds and control (non-treated) seeds were sown into plug cells containing peat-lite. Increasing PB concentration decreased cosmos shoot height at 32 days after planting (DAP), but decreased emergence percentage, responses that were more pronounced with priming than with soaking. A 1 ppm PB growth medium drench [30 ml/cell(0.2 mg PB/cell)] and, to a greater extent a 10 mg PB/liter (ppm PB) shoot spray [2 ml/shoot (0.02 mg PB/shoot)], both applied at 10 DAP, resulted in greater cosmos shoot height suppression at 32 DAP than treatment of seeds with 1000 ppm PB. Soaking marigold seeds in 1000 ppm PB failed to decrease shoot height below those of plants from non-treated seeds at 32 DAP. However, exposure to 1000 ppm PB during priming of marigold seeds resulted in a similar shoot height suppression (13%) as the growth medium drench, and similar shoot dry weight reduction (21%) as the shoot spray. Suppression of shoot growth by this seed treatment was short-term since by five weeks after transplanting into 15 cm (6 in) pots, only marigold plants that had received the growth medium drench or shoot spray were smaller than those of control plants. Treating marigold seeds with 1000 mg ppm PB used about one-fifth the PB used to drench the growth medium.

scholarly journals Relationship between morphological and physiological attributes of hop hornbeam seedlings

2013 ◽  
pp. 39-50 ◽  
Author(s):  
Vladan Ivetic ◽  
Zoran Davorija ◽  
Dragica Vilotic
Keyword(s):  
Potassium Concentration ◽  
Growing Season ◽  
Dry Mass ◽  
Seedling Quality ◽  
Strong Positive Correlation ◽  
Strong Correlations ◽  
Morphological Attributes ◽  
Collar Diameter ◽  
Root Collar ◽  
Ostrya Carpinifolia

Most commonly used morphological attributes were correlated with nutrient concentration in order to standardize quality assessment of two-year-old hop hornbeam (Ostrya carpinifolia Scop.) seedlings. Diameter has proven to be the best single morphological indicator of seedling quality given its strong positive correlation with all other observed morphological attributes. Seedling dry mass (shoot and root dry mass) and Dickson Quality Index can be considered the most comprehensive indicators of hop hornbeam seedling quality. However, the measuring of mass is destructive and requires a certain amount of time. The absence of strong correlations between physiological and morphological attributes of two-year old seedlings of hop hornbeam suggests the need for further research. The only significant correlation between physiological and morphological attributes (weak and positive) was recorded between the potassium concentration in root and root collar diameter after the second growing season.

Sign in / Sign up

Export Citation Format

Share Document