scholarly journals Investigation of rooting and growth characteristics of poplar clones in hydroponic and soil cultures

2018 ◽  
Vol 64 (No. 5) ◽  
pp. 207-215
Author(s):  
Ahmadloo Fatemeh ◽  
Calagari Mohsen ◽  
Salehi Azadeh ◽  
Goodarzi Gholam Reza
Keyword(s):  
Root Length ◽  
Dry Matter ◽  
Populus Euphratica ◽  
Growth Characteristics ◽  
Hydroponic Culture ◽  
Stem Diameter ◽  
Stem Height ◽  
Soil Culture ◽  
Poplar Clones ◽  
Poplar Cuttings

In this study, rooting and growth characteristics of different poplar clones from six species including Populus deltoides Bartram ex Marshall clone Lux, Populus nigra subsp. betulifolia (Pursh) W. Wettstein clone 17/13, Populus euramericana (Dode) Guinier clone 561/41, P. deltoides clone Samsun, Populus alba Linnaeus clone 49/9, Populus caspica (Bornmüller) Bornmüller, and Populus euphratica Olivier in hydroponic and soil cultures have been evaluated. In hydroponic culture, poplar cuttings were grown in plastic tanks and in soil culture, poplar cuttings were planted into plastic pots with 12 replications for each clone. The pot experiment was a Complete Randomized Design. Root length, stem diameter, stem height, and root and shoot dry matter of poplar plants were studied in hydroponic culture after 84 days and in soil culture three times at 6, 12, 18 weeks in 2017. In hydroponic culture, the cuttings of P. deltoides Lux and P. nigra betulifolia 17/13, and of P. deltoides Samsun and P. euphratica were among the first and last clones that rooted, respectively. Also, the lowest rate of rooting was observed in P. deltoides Samsun and P. euphratica clones. The highest values of all parameters except root length were obtained in P. euphratica. The highest root length and stem diameter were observed in clones of P. deltoides Lux, P. nigra betulifolia 17/13, P. euramericana 561/41, and P. deltoides Samsun. In soil culture, P. deltoides Lux, P. nigra betulifolia 17/13, and P. alba 49/9 showed the highest percentage of rooting compared to the other clones at the first measurement. All the clones except the clone of P. euphratica reached above 40 cm root length in each of the three measurement periods. The highest stem diameter, stem height, and shoot dry matter were obtained in clone of P. deltoides Lux and root dry matter in clone of P. alba 49/9.

scholarly journals Effect of Adding SAPs Polymers and Spraying With Organic Fertilizer on The Vegetative and Root Growth Characteristics of Lawns

2021 ◽  
Vol 910 (1) ◽  
pp. 012054
Author(s):  
Ali Karim Ali Al-Assafi ◽  
Saad A. Mahmood
Keyword(s):  
Chlorophyll Content ◽  
Root Length ◽  
Dry Matter ◽  
Plant Density ◽  
Organic Fertilizer ◽  
Cold Season ◽  
Growth Characteristics ◽  
Branch Plant ◽  
Hot Season ◽  
Number Of Branches

Abstract The experiment was carried out in the fields of the Department of Horticulture and Landscaping, College of Agriculture - Anbar University for the period from 1/4/2020 to 31/1/2021 to experience the effectiveness of adding SAPs, spraying with organic fertilizers and the interaction between them in the vegetative and root growth characteristics of the lawn. The polymers were used in three concentrations (0, 20, 40) g kg-1 soil, while the organic fertilizer was in four concentrations (0, 0.5, 1, 1.5) ml.L-1. A factorial experiment was carried out according to a randomized complete block design (RCBD) with three replications. The results showed that the addition of polymers at the level of 40 g kg-1 soil had significant differences in the average plant density, root length, dry matter percentage and chlorophyll content in the vegetative group was 47.83 plant 100 cm-2, 25.20 cm, 36.85% and 89.36 mg g-1 for hot season and 29.17%, 36.19 m mg-1 for cold season. The high concentration of organic fertilizer 1.5 ml L-1 showed significant differences in plant density, number of branches in the crown area, root length, dry matter percentage and chlorophyll content in the vegetative group was 46.00 plant 100 cm-2, 9.10 branch plant-1, 25.14 cm and 36.41%, 87.80 mg g-1 for hot season and 29.04%, 33.99 mg g-1 for cold season. The interaction treatment between the level of application of polymers 40 g kg-1 soil and the treatment of adding organic fertilizer 1.5 ml L-1 showed significant differences in the number of branches, root length, dry matter percentage and chlorophyll content in the vegetative group was 9.83 branch plant-1, 27.36 cm and 39.65%, 99.31 mg g-1 for hot season and 33.44%, 42.10 mg g-1 for cold season.

scholarly journals PRODUCTION OF CHERRY TOMATO CHIPS IN DIFFERENT TYPES OF PROTECTED ENVIRONMENT

2020 ◽  
Vol 4 (1) ◽  
pp. 1-6
Author(s):  
Mirian Nomura ◽  
Luan Soares da Silva ◽  
Matheus Vinicius Abadia Ventura ◽  
Estevam Matheus Costa ◽  
Muriel Silva Vilarinho ◽  
...  
Keyword(s):  
Chlorophyll A ◽  
Root Length ◽  
Dry Matter ◽  
Stem Diameter ◽  
Chlorophyll B ◽  
Fresh Matter ◽  
Shoot Height ◽  
Different Types ◽  
Screen Mesh ◽  
Cherry Tomatoes

The objective of this work was to evaluate the production of cherry tomatoes in protected environments composed of different photoselective screens. The work was conducted in June / July 2018. The treatments consist of different types of protected environments: open sky, black screen (mesh for 30% shade); white fabric (mesh for 20% shade); blue screen (mesh for 20% of shade) and red screen (mesh for 20% of shade). The experimental design was a randomized block with four replicates, ten plants per experimental plot. The following analyses were performed on cherry tomatoes: leaf number, stem diameter, shoot height, root length, total fresh matter, shoot fresh matter, fresh root matter, shoot dry matter, root, chlorophyll a and chlorophyll b. The black shading, white photoselective, blue photoselective and red photoselective screens did not influence the number of leaves, stem diameter, shoot height, root length, total fresh matter, fresh shoot matter, aerial shoot dry matter, root dry matter, chlorophyll a and chlorophyll b. The red photoselective screen showed superiority in the fresh matter of the root of the other treatments.

scholarly journals Macronutrients accumulation and growth of pineapple cultivars submitted to aluminum stress

2016 ◽  
Vol 20 (11) ◽  
pp. 978-983 ◽  
Author(s):  
Mauro F. C. Mota ◽  
Rodinei F. Pegoraro ◽  
Paulo S. C. Batista ◽  
Valéria de O. Pinto ◽  
Victor M. Maia ◽  
...  
Keyword(s):  
Chlorophyll Content ◽  
Nutrient Solution ◽  
Root Length ◽  
Dry Matter ◽  
Block Design ◽  
Stem Diameter ◽  
Aluminum Stress ◽  
Randomized Block Design ◽  
Number Of Leaves ◽  
Plant Components

ABSTRACT The objective was to determine the growth and accumulation of macronutrients of two pineapple cultivars submitted to different concentrations of aluminum (Al). For this, a study was conducted in plastic pots containing 4 L of nutrient solution, in a randomized block design, in a 2 x 5 factorial scheme, corresponding to two pineapple cultivars (‘IAC Fantástico’ and ‘Vitória’) and five Al concentrations (0, 21.6, 43.2, 64.8 and 86.4 mg of Al plant-1), with four replicates. The following variables were evaluated: root length, dry matter of root, stem and leaf, stem diameter, number of leaves, chlorophyll content and accumulation of macronutrients at 60 days after treatment. The cv. ‘Vitória’ showed a linear decrease in chlorophyll content, root dry matter, root length and accumulation of N, P, K, Ca and Mg in most plant components promoted by the increase of Al concentration in the nutrient solution. The cv. ‘IAC Fantástico’ had lower total dry matter, stem dry matter, stem diameter and accumulation of N, Ca and Mg. However, the evaluated characteristics were not influenced by the increase of Al concentration, showing greater tolerance of this cultivar to Al in nutrient solution.

Assessing heritability and variance components of agronomic traits of four alfalfa (Medicago sativa L.) cultivars

2004 ◽  
Vol 52 (3) ◽  
pp. 263-268 ◽  
Author(s):  
E. Ateş ◽  
A. S. Tekeli
Keyword(s):  
Seed Yield ◽  
Variance Components ◽  
Dry Matter ◽  
Agronomic Traits ◽  
Block Design ◽  
Stem Diameter ◽  
Main Stem ◽  
Dry Matter Yield ◽  
Stem Height ◽  
Herbage Yield

This research was conducted between the years 1999-2002 in the experimental area of the Field Crops Department of Tekirdag Agricultural Faculty in Turkey. The experiment was laid out in a randomized block design with three replications. Four alfalfa cultivars were used. variance components, variance coefficients and heritability values were determined for morphological characters, herbage yield, dry matter yield and seed yield. The maximum main stem height (78.69 cm), main stem diameter (4.85 mm), leaflet width (0.93 cm), seeds/pod (6.57), herbage yield (75.64 t ha-1), dry matter yield (20.06 t ha-1) and seed yield (0.49 t ha-1) were obtained from the cultivar Marina. The leaflet length ranged from 1.65 to 2.08 cm and the raceme length from 3.15 to 4.38 cm in the alfalfa cultivars. The highest 1000-seed weights (2.42-2.49 g) were found in cultivars Marina and Sitel. The heritability values of main stem height, main stem diameter, leaflet length and width, leaf/stem ratio, racemes/main stem, raceme length, seeds/pod, 1000-seed weight, herbage yield, dry matter yield and seed yield were calculated as 91.0%, 97.6%, 81.8%, 88.8%, 90.4%, 28.3%, 99.0%, 99.2%, 88.0%, 97.2%, 99.6% and 95.4%, respectively.

Effects of Zinc on the Growth of Several Vegetables

2015 ◽  
Vol 1092-1093 ◽  
pp. 613-616
Author(s):  
Chen Lin ◽  
Xiu Li Ge
Keyword(s):  
Heavy Metal ◽  
Trace Elements ◽  
Plant Height ◽  
Root Length ◽  
Culture Method ◽  
Growth Characteristics ◽  
Soil Culture ◽  
Dry Biomass ◽  
Number Of Leaves ◽  
Zn Stress

Heavy metal zinc is one of the trace elements necessary to the growth of vegetable, but Zn excessiveness also could cause damage. In this research, four vegetables were planted by soil culture method under different Zn2+concentration controlled by the exogenous Zn2+addition; their growth characteristics were analyzed to find the sensitive growth indexes to Zn and compare their tolerance to Zn pollution. Results show that: low concentration of Zn2+(< 100 mg/kg) can promote significantly the plant height and the root length growth of all the four vegetables, while, as the exogenous Zn2+increased to the concentration of 150 mg/ kg, the number of leaves, the above-ground dry biomass and the underground dry biomass were suppressed significantly; in this experiment, the four vegetables appeared different sensitivity to Zn stress,Lactucasativavar.longifoliafappeared highest tolerance andBrassicachinensisappeared less sensitivity to Zn stress.

scholarly journals Responses of Root Characteristic Parameters and Plant Dry Matter Accumulation, Distribution and Transportation to Nitrogen Levels for Spring Maize in Northeast China

Agriculture ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 308
Author(s):  
Yang Yu ◽  
Chunrong Qian ◽  
Wanrong Gu ◽  
Caifeng Li
Keyword(s):  
Surface Area ◽  
Nitrogen Fertilizer ◽  
Root Length ◽  
Dry Matter ◽  
Projection Area ◽  
Dry Matter Accumulation ◽  
Characteristic Parameters ◽  
High Nitrogen ◽  
Nitrogen Levels ◽  
Matter Transport

Improving nitrogen use efficiency is a significant scientific problem to be solved. Two maize hybrids JD27 (Jidan 27) and SD19 (Sidan 19) were selected to study the effects of nitrogen levels on root characteristic parameters and plant dry matter accumulation, distribution and transportation. We set five different nitrogen levels, which were nitrogen deficiency (000N), low nitrogen (075N), medium nitrogen (150N), high nitrogen (225N) and excessive nitrogen (300N). The results showed that the root length and root surface area of JD27 were significantly higher than those of SD19 under 075N. With the increase of nitrogen levels, the root difference among varieties gradually decreased. The root length, projection area, total surface area and total volume reached the maximum values at silking stage. The average root diameter kept stable or decreased slowly with the growth stage. The dry matter accumulation of JD27 was higher than that of SD19 at all growth stages. Increasing the amount of nitrogen fertilizer can promote the transport of dry matter to grain and improve dry matter transport efficiency after anthesis. Under the treatment of medium and high nitrogen fertilizer, maize was easy to obtain a higher yield, but excessive nitrogen fertilizer inhibited the increase of yield. This study provides theoretical and practical guidance for maize production techniques.

scholarly journals MORPHOPHYSIOLOGICAL RESPONSES OF COWPEA GENOTYPES TO IRRIGATION WATER SALINITY

2017 ◽  
Vol 30 (4) ◽  
pp. 1001-1008
Author(s):  
JOÃO PEDRO ALVES DE AQUINO ◽  
ANTÔNIO AÉCIO DE CARVALHO BEZERRA ◽  
FRANCISCO DE ALCÂNTARA NETO ◽  
CARLOS JOSÉ GONCALVES DE SOUZA LIMA ◽  
RAYLSON RODRIGUES DE SOUSA
Keyword(s):  
Irrigation Water ◽  
Dry Matter ◽  
Arid Regions ◽  
Stem Diameter ◽  
Water Salinity ◽  
Productive Capacity ◽  
Randomized Design ◽  
Irrigation Water Salinity ◽  
Water Salt ◽  
Completely Randomized Design

ABSTRACT Cowpea is broadly cultivated worldwide, especially in semi-arid or arid regions where soil or irrigation water salt contents can negatively influence the species’ productive capacity. The objective of this study was to evaluate the morphophysiological responses of cowpea genotypes to irrigation water salinity. The experiment was conducted in a greenhouse, under a completely randomized design with nine replications and in a 5x3 factorial scheme. Treatments consisted of five levels of irrigation water electrical conductivity - EC (EC0: 0.55; EC1: 1.60; EC2: 3.20; EC3: 4.80 and EC4: 6.40 dS m-1), applied from the 15th day after sowing (DAS), and three cowpea genotypes (G1: BRS Imponente; G2: MNC04-795F-168 and G3: MNC04-795F-159). EC increases at 35 DAS promoted stem diameter reductions of 8.0% (G1), 11.4% (G2), and 7.7% (G3), indicating different resistance to salinity by each genotype. Leaf area reductions at 25 and 38 DAS were 30.9% and 38.8% for EC0 and EC4, respectively. The BRS Imponente cultivar presented a performance superior to those of G2 and G3 in relation to stem diameter and stem dry matter at 25 DAS, and root-shoot and root-leaf ratios at 38 DAS.

scholarly journals The role of phosphorus sources on root diameter, root length and root dry matter of barley (Hordeum vulgareL.)

2018 ◽  
Vol 42 (1) ◽  
pp. 1-15 ◽  
Author(s):  
Mohammad Mirzaei Heydari ◽  
Robert M. Brook ◽  
David L. Jones
Keyword(s):  
Root Length ◽  
Dry Matter ◽  
Root Diameter ◽  
Phosphorus Sources

scholarly journals Growth of hydroponic lettuce with optimized mineral and organomineral nutrient solutions

2017 ◽  
Vol 21 (3) ◽  
pp. 191-196
Author(s):  
Antonio F. Monteiro Filho ◽  
Márcia R. Q. A. Azevedo ◽  
Carlos A. V. de Azevedo ◽  
Josely D. Fernandes ◽  
Carisa R. da Silva ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Leaf Area ◽  
Root Length ◽  
Stem Diameter ◽  
Crown Diameter ◽  
Mineral Solution ◽  
Nutrient Film Technique ◽  
Hydroponic Cultivation ◽  
Number Of Leaves ◽  
Nutrient Solutions

ABSTRACT The objective of this study was to evaluate the growth of crisp lettuce in hydroponic cultivation, following the nutrient film technique (NFT), using optimized mineral and organomineral nutrient solutions. The experiment was set in 8 x 3 factorial scheme, with treatments distributed in randomized blocks and split plots, with three replicates. The plots corresponded to eight nutrient solutions, of which four were mineral solutions with chemical composition suggested by Bernardes, Furlani, Castellane & Araújo and Ueda, and four were organomineral solutions, suggested by this research with chemical composition similar to those of the previously mentioned mineral solutions. The subplots corresponded to three varieties of crisp lettuce: Thaís, Vanda and Verônica. At 25 days after transplanting, the following parameters were evaluated: stem and crown diameter, root length, leaf area and number of leaves. For stem and crown diameters and number of leaves, the mineral solutions promoted the highest means. The mineral solution of Furlani and the organomineral solutions, except the modified solution of Castellane & Araújo, promoted the greatest root lengths. The smallest leaf area was obtained in the organomineral solution of Ueda. The cultivar Verônica had the highest root length and stem diameter.

scholarly journals Tolerance of Annual Winter Species to Protoporfirinogen Oxidase Inhibiting Herbicides (Protox)

2018 ◽  
Vol 36 (0) ◽  
Author(s):  
C. ALVES ◽  
L. GALON ◽  
R.R. KAIZER ◽  
F.L. WINTER ◽  
C.M. HOLZ ◽  
...  
Keyword(s):  
Leaf Area ◽  
Plant Species ◽  
Analysis Of Variance ◽  
Dry Matter ◽  
Stem Diameter ◽  
F Test ◽  
Tolerant Species ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Linear Regressions

ABSTRACT: The use of plant species for the phytoremediation of soils contaminated with herbicides is an alternative that has been emphasized to minimize the effects of the persistence of agrochemicals in the environment. The objective of this study was to evaluate the tolerance potential of winter species in soils contaminated with sulfentrazone and fomesafen. The experiment was in a completely randomized design with four replications. Doses of fomesafen (0.0, 0.125, 0.250, and 0.5 kg ha-1) and sulfentrazone (0.0, 0.3, 0.6 and 1.2 kg ha-1) were applied during the pre-emergence of phytoremediate species (black oat, vetch, birdsfood trefoil, radish and lupin). Forty five days after the emergence of the species, the phytotoxicity (%), leaf area (cm2), stalk and/or stem diameter (mm), height (cm) and dry matter (g) variables of the plants were evaluated. Data were submitted to analysis of variance by F test; when significant, linear or non linear regressions were applied to evaluate the effect of herbicide doses on the studied species. Birdsfood trefoil was the less tolerant species to fomesafen and sulfentrazone. Black oat was less affected by the application of fomesafen doses, but it was highly susceptible to sulfentrazone. Radish presented tolerance only up to the fomesafen dose of 0.25 kg ha-1; as for sulfentrazone, the species showed tolerance. The most tolerant species to fomesafen and sulfentrazone, regardless of the dose, was the lupine, which is a possible alternative for the phytoremediation of soils contaminated with these herbicides.

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