scholarly journals Growth performance and resistance to ground late frosts of Fagus sylvatica L. plantation treated with a brassinosteroid compound

2017 ◽  
Vol 63 (No. 3) ◽  
pp. 117-125
Author(s):  
Gallo Josef ◽  
Baláš Martin ◽  
Linda Rostislav ◽  
Kuneš Ivan
Keyword(s):  
Mortality Rate ◽  
Growth Performance ◽  
European Beech ◽  
Frost Damage ◽  
Control Treatment ◽  
Initial Growth ◽  
Height Range ◽  
Fagus Sylvatica L ◽  
Collar Diameter ◽  
Root Collar

We measured the initial growth performance of a young plantation of European beech treated with a brassinosteroid compound prior to planting and compared it with a control treatment: we assessed heights, root collar diameters and mortality rate during the period 2012–2015. The trees showed posterior damage by ground frost after a substantial late frost event on the night of 4–5 May 2014. Therefore, we evaluated the post-stress vitality of trees, subsequent height increment from spring to August, and the height range of the damage.<br />Mean height, root collar diameter, and mortality rate did not show any significantly better performance in the brassinosteroid treatment over the control treatment. Neither did the application treatment have a significant positive effect on the resistance of beech to late frosts. The severe frost damage was most intense at 30 cm above ground, and rapidly declined with increased height.

scholarly journals Effects of root pruning and fertilization on biometric traits of 2-year-old seedlings of European beech (Fagus sylvatica L.)

2016 ◽  
Vol 77 (3) ◽  
pp. 256-260
Author(s):  
Winicjusz Kasprzyk ◽  
Szymon Jastrzębowski
Keyword(s):  
Root System ◽  
Fagus Sylvatica ◽  
Nitrogen Fertilization ◽  
European Beech ◽  
Root Pruning ◽  
Seedling Height ◽  
Root Collar Diameter ◽  
Fagus Sylvatica L ◽  
Collar Diameter ◽  
Root Collar

Abstract The aim of this study was to examine the effects of pruning the root system and different doses of nitrogen fertilization on the height and root collar diameter of 2-year-old beech seedlings (Fagus sylvatica L.). This research was conducted in the forest nursery Muchów (Jawor Forest District, regional directorate of State Forests in Wrocław) and two different pruning treatments (no pruning and at 12 cm depth) and nitrogen fertilization doses (25 and 50 kg×ha−1) were applied. Results from an ANOVA showed statistically significant differences between the two pruning treatments (p = 0.000) as well as for the interaction of both treatment factors (p = 0.019). Root collar diameter correlated with seedling height, both of which were significantly different for the two pruning treatments (p = 0.000). No statistically significant impact by the nitrogen fertilization doses on seedling height could be observed (p = 0.125). To conclude, we found that it is reasonable to reduce the doses of nitrogen fertilization to half the recommended amount, 25 kg×ha−1, if the root system is not pruned during the second growth year. Seedlings that do receive pruning should be fertilized using the recommended nitrogen doses.

scholarly journals Influence of the Nutritional Aspects on Initial Growth of African Mahogany (Khaya ivorensis A. Chev.)

2018 ◽  
Vol 10 (6) ◽  
pp. 184
Author(s):  
Camila Oliveira Muniz ◽  
Eliana Paula Fernandes Brasil ◽  
Lucas Morais Lobo ◽  
Evaldo De Melo Ferreira ◽  
João Augusto da Silva ◽  
...  
Keyword(s):  
Plant Height ◽  
Base Saturation ◽  
Initial Growth ◽  
Root Collar Diameter ◽  
African Mahogany ◽  
Statistical Variation ◽  
Increasing Trend ◽  
Collar Diameter ◽  
Block Effect ◽  
Root Collar

Khaya ivorensis A. Chev. (African mahogany) is one of the most economically important forest species, since it is used in the international furniture market. However, little is known about its culture and nutritional requirements. This study aimed to assess the development of K. ivorensis plants subjected to different base saturations, as well as to different N, P and K levels. An 8-ha area was used, wherein 4 ha had base saturation increased to 55% and the remaining 4 ha to 75%. The experimental design adopted was randomized blocks with eight repetitions in a factorial scheme (4 × 4 × 4), being four N doses, four P doses and four K doses. The base saturation was assessed through the block effect. The root collar diameter and the plant height were measured 12 months after planting. Each experimental plot comprised six plants. The root collar diameter showed statistical differences between blocks and N doses. Only the NPK association showed statistical variation in plant height. However, a growth decreasing trend resulting from increased N doses was observed, as well as a growth increasing trend resulting from increased P and K doses. All treatments favored African mahogany growth. The most indicated base saturation was 55%, since there was no plant growth improvement when V% was increased to 75%. The excess of N impaired the growth of the species. The best treatment comprised 60 g urea, 240 g triple superphosphate, and 168 g potassium chloride.

scholarly journals APLICAÇÃO DE FERTILIZANTE DE LIBERAÇÃO LENTA NO ESTABELECIMENTO DE MUDAS DE IPÊ-ROXO E ANGICO-BRANCO EM ÁREA DE DOMÍNIO CILIAR

FLORESTA ◽  
2011 ◽  
Vol 41 (2) ◽  
Author(s):  
Aletéia Lang ◽  
Ubirajara Contro Malavasi ◽  
Vanessa Decker ◽  
Paula Vergili Pérez ◽  
Maicon Antonio Aleixo ◽  
...  
Keyword(s):  
Slow Release ◽  
Native Forest ◽  
Initial Growth ◽  
Slow Release Fertilizer ◽  
Below Ground ◽  
Number Of Leaves ◽  
Collar Diameter ◽  
Non Destructive ◽  
Root Collar ◽  
Modern Tool

O uso de fertilizantes de liberação controlada constitui-se em uma das modernas técnicas na produção de mudas. Porém existem poucos relatos de seus efeitos sobre o crescimento inicial de espécies florestais nativas em área de domínio ciliar. O estudo objetivou comparar os efeitos de diferentes fertilizantes de liberação lenta (FLL) com uma formulação convencional no crescimento a campo de mudas de Anadenanthera colubrina e Tabebuia avellanedae. As mudas foram plantadas com 55 g por cova de Basacote 3M, Basacote 6M, Basacote 9M, formulação 16-8-12, e uma testemunha (sem fertilização). As mensurações não destrutivas incluíam os incrementos em altura, diâmetro do coleto e número de folhas aos 90, 180, 270 e 360 dias após o plantio, e avaliações destrutivas da massa seca aérea e radicular em mudas escavadas aos 180 e 360 dias após o plantio. Os resultados revelaram maior incremento para o diâmetro do coleto e o número de folhas em A. colubrina com FLL, enquanto que mudas de T. avellanedae expressaram maiores respostas em incrementos de altura. As biomassas secas da raiz e aérea não foram influenciadas pela adição de fertilizantes na cova, apresentando apenas diferenças entre as espécies.Palavras-chave:  Crescimento inicial; Anadenanthera colubrina; Tabebuia avellanedae; fertilizante de liberação lenta. AbstractEffects of fertilizers applied to ipe roxo and angico during their seedlings planting. Slow release fertilizer (SRF) is a modern tool for seedling production. However, there are few reports on the effects of its application on initial growth of native forest species planted on repairing areas. The aim of this experiment was to compare the effects of SRF and a conventional fertilizer on initial growth of fields planted with Anadenanthera colubrine and Tabebuia avellanedae seedlings. Treatments included 55 g per planting hole of Basacote 3M, Basacote 6M, Basacote 9M, conventional fertilizer NPK (16-8-12) and a control (no fertilizer). Non destructive measurements included increments of root collar, length, and number of leaves at 90, 180, 270 and 360 days after planting date. Destructive measurements included dried biomass of above and bellow ground tissues, root length, and leaf area of three seedling randomly selected from each treatment. The results showed higher increments in root collar diameter and number of leaves for A. colubrine with SRF while T. avellanedae seedlings showed higher increments in plant height. Differences in relation to above and below ground dry masses were detected only between species at 180 and 360 days after planting date.Keywords: Initial growth; Anadenanthera colubrina; Tabebuia avellanedae; slow release fertilizer.

scholarly journals Effect of Garlic Oil Inclusion on Carcass Quality, Growth Performance and Cost Implication of Broiler Chickens

2020 ◽  
pp. 150-154
Author(s):  
Bamigboye Samson. O. ◽  
Oluwafemi R. A. ◽  
Maduekwe Innocent M.
Keyword(s):  
Mortality Rate ◽  
Growth Performance ◽  
Broiler Chickens ◽  
Basal Diet ◽  
Control Treatment ◽  
Carcass Quality ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Cost Implication ◽  
Garlic Oil

This study was carried to evaluate the “Effect of Garlic (Allium sativum) oil inclusion on carcass quality, growth performance and cost implication of broiler chickens”. A total of 180 day–old-(Arboacre) broiler chicks purchased from a reputable hatchery was used in the study which lasted for eight (8) weeks. The birds were divided into four experimental groups; each group was further subdivided into three replicates of fifteen birds per each in a Complete Randomized Design (CRD). The birds were fed on two basal diets (Starter and finisher) in an experiment which lasted for eight weeks. The garlic oil (Allum sativum) was added to the basal diet at (0.00, 0.1, 0.2, 0.3%) level respectively. The treatment were T1, T2, T3, and T4 with T1 serving as control. Growth performance, carcass characteristics, and cost implication were recorded. At the end of the experiment, the birds were slaughtered, dressed to estimate the different parameters. The result showed that the diet with 0.3% garlic oil inclusion had significantly (P<0.5) highest body weight and highest dressing percentage. Control treatment (0.0%) had highest feed intake and best feed conversion ratio. The mortality rate was not affected significantly by the addition of garlic oil in broiler diet. The garlic oil inclusion reduced the mortality rate of the birds, increases productivity and food safety. The result showed on cost implication reveal the economical evaluation of the experiment diets indicated that, the diet with 0.3% level of garlic oil showed the highest profitability ratio as compared to the group. This might be due to the highest return of the weight gains recorded by this group of chicken.

scholarly journals Controlled-Release Fertilizer in the Production of Seedlings of Anonna cacans Warm

2020 ◽  
Vol 8 (3) ◽  
pp. 125 ◽  
Author(s):  
Oscar José Smiderle ◽  
Aline Das Graças Souza ◽  
Renata Diane Menegatti
Keyword(s):  
Controlled Release ◽  
Nutritional Status ◽  
Initial Growth ◽  
Medium Sand ◽  
Promising Alternative ◽  
Controlled Release Fertilizer ◽  
Root Collar Diameter ◽  
Collar Diameter ◽  
Root Collar ◽  
Different Doses

The use of controlled-release fertilizers is a promising alternative for supplying nutrients during the initial growth of nursery seedlings. The aim of this study was to verify the effects of different doses of controlled-release fertilizer (CRF) on initial growth and nutritional status in seedlings of Anonna cacans Warm. The seeds were originally sown in a seedbed and then, after initial seedling development, were transplanted into polyethylene bags containing a substrate of washed medium sand, to which different doses of CRF had been added before transplanting. The experimental design was completely randomised, with four treatments, five doses of Osmocote® NPK 19-06-10 formulation (0, 1, 2, 4 and 8 g L-1 of substrate), with four replications, each replication comprising three seedlings (one in each container). Increases in root-collar diameter and plant height were determined throughout the experimental period (6 months) from data collected every 30 days after transplanting. At the end of the experiment the following were evaluated: height, root-collar diameter, N concentration, chlorophyll index, chlorophyll concentration (a, b and total) and leaf area. Root-collar diameter and height showed a positive linear response to increases in the fertilizer dose. From a 4 g L-1 dose of CRF, the nutrient supply added to the substrate of medium sand optimises the initial phase of plant growth and guarantees the adequate nutritional status of Anonna cacans, and can be suggested as a viable technique for use in forest nurseries, and one which results in efficient use of the input material and avoids fertilizer wastage.

scholarly journals DESEMPENHO DE MUDAS DE Pinus taeda PRODUZIDAS EM RAIZ NUA E EM DOIS TIPOS DE RECIPIENTES, 24 MESES APÓS O PLANTIO

FLORESTA ◽  
2001 ◽  
Vol 31 (12) ◽  
Author(s):  
Adalberto Brito De Novaes ◽  
José Geraldo De A. Carneiro ◽  
Deborah Guerra Barroso
Keyword(s):  
Pinus Taeda ◽  
Dry Weight ◽  
The Other ◽  
Initial Growth ◽  
Morphological Parameters ◽  
Stem Height ◽  
Root Collar Diameter ◽  
Collar Diameter ◽  
Bare Root ◽  
Root Collar

O presente estudo analisou a viabilidade do uso de uma nova metodologia de produção de mudas de Pinus taeda, cujo objetivo foi comparar a qualidade de mudas produzidas em blocos prensados, com mudas produzidas em tubetes e em raiz nua, com base nos parâmetros morfológicos. Empregou-se 5 tratamentos: a) Blocos prensados com 10 cm de altura; b) Blocos prensados com 7 cm de altura; c) Raiz nua; d) Tubetes (48 unidades/bandeja) e e) Tubetes (96 unidades/bandeja). Avaliou-se no viveiro os seguintes parâmetros: a) Altura da parte aérea (H); b) Diâmetro de colo (D); c) Relação H/D e d) Pesos de matéria fresca e seca das partes aérea, radicial e total. No campo foram avaliados a sobrevivência e o crescimento inicial. O desenvolvimento das mudas produzidas nos blocos prensados com 10 cm foi superior aos demais métodos utilizados neste trabalho. As médias mais baixas foram verificadas em mudas produzidas em tubetes. Performance Pinus taeda seedlings produced in bare root and two conteiner, after 24 months of the plantation Abstract The present study has anlysed the viability of the use of a new methodology fase in the prodution of Pinus taeda seedlings. The main objective was to compare the seedlings quality when produced in pressed blocks, tubes (60 cm3) and bare root. The five treatment were: a) Pressed blocks 10 cm height; b) Pressed blocks 7 cm height; c) Bare roots; d) Tubes (48 units/tray) and e) Tubes (96 units/tray). Were evaluated in the nursery the following parameters: a) Stem height (H); b) Root-collar diameter (D); c) H/D ratio and d) Weight fresh and dry weight matter (stem, root and total. In the field the survival and the initial growth. The performance of the seedlings produced in the 10 cm pressed blocks was higher than the other methods used in this experiment. The lowest averages were observed in seedlings produced in tubes for all morphological parameters evaluated.

scholarly journals Prosperity of Douglas fir (Pseudotsuga menziesii [Mirb.] Franco) plantations in relation to the shelter

2013 ◽  
Vol 59 (No. 9) ◽  
pp. 352-358 ◽  
Author(s):  
D. Sychra ◽  
O. Mauer
Keyword(s):  
Frost Damage ◽  
Douglas Fir ◽  
Forest Site ◽  
Clear Cut ◽  
Length Increment ◽  
Collar Diameter ◽  
Multiple Stems ◽  
Stem Curvature ◽  
Qualitative Characteristics ◽  
Root Collar

The study evaluates the mortality, growth and qualitative characteristics of Douglas fir transplants planted out on clear-cut areas with different shelter. We assessed 11 clearings situated in the Forest Site Complex 4K &ndash; acidic beech (Fagetum acidophilum). The young trees were assessed 3 years after planting for the following parameters: total shoot length, increment, root collar diameter, number of multiple stems, stem curvature, crown form, length of needles, colour of needles and frost damage. The lowest mortality and the best growth of Douglas fir plants were recorded in small, sheltered gaps. Large, unsheltered gaps showed low survival, slower growth and poor vitality of plants. &nbsp;

scholarly journals Substrate influences the height of one- and two-year-old seedlings of silver fir and European beech growing in polystyrene containers

2013 ◽  
Vol 74 (2) ◽  
pp. 117-125 ◽  
Author(s):  
Jacek Banach ◽  
Kinga Skrzyszewska ◽  
Łukasz Świeboda
Keyword(s):  
Mycorrhizal Fungus ◽  
European Beech ◽  
Silver Fir ◽  
Substrate Type ◽  
Below Ground ◽  
Collar Diameter ◽  
Set Up ◽  
One Year ◽  
Root Collar ◽  
Forest District

Abstract The effectiveness of different peat-based substrates was compared for the propagation of two mountain tree species (silver fir and European beech). The experiment was set up in the spring of 2006, and seedlings were grown in polystyrene multipots for 2 years. Four types of substrate were applied: (1) a newly prepared 1:1 peat-sawdust mixture; (2) a peat-sawdust mixture which had already been used for five production periods; (3) a peat substrate produced in the ‘Nędza’ container nursery (Rudy Raciborskie Forest District), consisting of peat and perlite; (4) a peat substrate, as described for (3), with added mycorrhizal fungus Hebeloma crustuliniforme. After sowing, polystyrene multi-pots were placed in a transparent tent. During the autumns of 2006 and 2007, for both species and each substrate type, 25 seedlings were randomly selected for measurement of their above-ground height, root length, root collar diameter, above- and below-ground fresh weight. Growth of one-year old and two-year-old seedlings of both species differed depending on their substrate. The application of a mycorrhizal inoculum positively affected seedling establishment, since the best height growth and largest seedlings of both species were grown on substrate (4). The growth of one-year-old fir seedlings in the ‘old’ peat and sawdust mixture (2) was similar to those seedlings grown on the turf substrate (3). Root:shoot allocation differed among the substrates. In fir, root:shoot allocation was approximately equivalent at 1:0.9, whereas for beech it was 1:2 in one-year old seedlings and 1:1.5 in two-year old seedlings.

scholarly journals Phytoremediation of diesel and spent engine oil contaminated soil using Kariya (Hildergardia barteri Mast.) seedlings

2020 ◽  
Vol 36 (2) ◽  
pp. 139-149
Author(s):  
S.O. Olajuyigbe ◽  
O.O. Fayinminnu ◽  
A.O. Ayoade
Keyword(s):  
Growth Performance ◽  
Biomass Accumulation ◽  
Diesel Oil ◽  
Engine Oil ◽  
Control Treatment ◽  
Total Biomass ◽  
Plant Parts ◽  
Spent Engine Oil ◽  
Number Of Leaves ◽  
Collar Diameter

Using a completely randomized design experiment, the effect of different levels of diesel and spent engine oil contamination (0 mL/kg, 25 mL/kg, 50 mL/kg and 75 mL/kg of soil) on growth performance (seedling height, collar diameter, number of leaves and biomass accumulation) of Hildergardia barteri seedlings were assessed for twelve weeks. The concentration of Lead, Nickel, Copper and Zinc in the plant parts were also determined. Data were analysed using descriptive and inferential statistics at P<0.05 level of significance. There were significant differences in the effects of diesel and spent engine oil on growth performance of seedlings based on contamination levels. Control treatment had the highest height (92.43±5.13 cm), collar diameter (16.23±0.98 mm), number of leaves (11.21±0.47) and total biomass (33.01±12.79 g). Seedlings exposed to 50 mL/kg treatments had the least height (diesel oil: 78.21±7.22 cm; spent engine oil: 79±6.24 cm); those exposed to 75 mL/kg contamination had the least collar diameter (diesel oil: 8.85±1.05 mm, spent engine oil: 12.02±1.01 mm), while seedlings treated with 50 mL/kg diesel oil (2.21±0.37) and 75 mL/kg spent engine oil (4.79±0.55) had the lowest number of leaves. Heavy metal bio-accumulation ranges were: Lead: 0.17-0.39 mg/kg, Nickel: 0.09–0.45 mg/kg, Copper: 0.54–1.08 mg/kg, Zinc: 0.88–1.58 mg/kg. The ability of the seedlings to survive and bio-accumulate heavy metals indicate the potential phytoremediation capabilities of Hildergardia barteri. Keywords: phytoextraction, hydrocarbon derivatives, growth inhibition, Hildergardia barteri

scholarly journals Adaptation and Growth Performance Evaluation of Nitrogen Fixing Tree/Shrub Species in Dello-menna District of Bale zone, Southeast Ethiopia

2021 ◽  
Vol 3 (1) ◽  
pp. 40-45
Author(s):  
Wondmagegn Bekele ◽  
Bikila Mengistu ◽  
Hirpha Ababa ◽  
Zerihun Dibaba ◽  
Fikru Ameyu
Keyword(s):  
Land Use ◽  
Survival Rate ◽  
Growth Performance ◽  
Plant Height ◽  
Shrub Species ◽  
Mean Values ◽  
Southeast Ethiopia ◽  
Collar Diameter ◽  
Root Collar ◽  
Bale Zone

Prior integration of any tree/shrub species in a given land use system, there is always the need of undertaking a field trials to assess their adaptability and growth performance under a particular environment. Study was planned and conducted to evaluate the adaptability potential and growth performance of six nitrogen fixing tree/shrub species in Dello-menna district of Bale zone, southeast Ethiopia. The considered species in the study are Cajanus cajan, Flemingia macrophylla, Gliricidia sepium, Sesbania sesban, Calliandra calothyrsus, and Leucaena leucocephela. Seedlings were produced in a nursery site and transplanted to the experimental site. The experiment was laid out in RCBD design with three replications, and the management practices employed uniformly for each species throughout the stud period. In the study the necessary growth performance data parameters; plant height, root collar diameter and survival rate were measured and recorded. Thereafter, the data was analysed by GenStat (15th ed) and Excel computerized programs. Results obtained showed that, these growth performance data parameters were significantly (p < 0.05) varied among the tested species. In this respect, F. macrophylla, S. sesban, G. sepium and C. cajan attained the higher mean values in survival rate, plant height and root collar diameter. While L. leucocephela and C. calothyrsus attained the lowest mean values for the entire growth performance parameters. Hence, it can be inferred that the study site matched well with the environmental requirement of F. macrophylla, S. sesban, G. sepium and C. cajan. The species therefore offers much promise for future use in any of agroforestry practices in the area. However, evaluation of their contribution to soil fertility improvement and crop yield needs to be further investigated as this may insights to know their nutrient provision potential while integrated together with annual and/or perennial plants in agroforestry land use system.

Sign in / Sign up

Export Citation Format

Share Document