scholarly journals Growth and Flowering Responses of Lupinus varius L. to Paclobutrazol

HortScience ◽  
2004 ◽  
Vol 39 (7) ◽  
pp. 1659-1663 ◽  
Author(s):  
Osman Karaguzel ◽  
Ibrahim Baktir ◽  
Sadik Cakmakci ◽  
Veli Ortacesme
Keyword(s):  
Plant Height ◽  
Foliar Spray ◽  
Branch Length ◽  
Growth Characteristics ◽  
Internode Length ◽  
River Sand ◽  
Number Of Branches

The effects of method of application and dose of paclobutrazol on the growth and flowering characteristics of Lupinus varius L. were studied. On 17 Dec., seeds were sown into 18-cm pots (three seeds per pot) filled with a mixture consisting of 2 peat: 1 river sand (by volume). On 25 Mar., when 5% of the plants had elongated first internodes, doses of paclobutrazol at 0 (control), 0.625, 1.250, and 2.500 mg a.i./plant were applied to plants as a foliar spray or media drench. The application of paclobutrazol led to a slight shortening of the time to flowering, especially when applied as a foliar spray. Plant height and internode length, length, and internode length of the main inflorescence significantly decreased with increased doses of paclobutrazol and this also happened with the number of branches per plant, branch length, and length and internode length of branch inflorescence. On the contrary, stem, main, and branch inflorescence diameters significantly increased with increased doses of paclobutrazol, whether applied as a foliar spray or media drench. However, drench applications of paclobutrazol were consistently more effective than foliar spray treatments on most of the growth characteristics investigated. Paclobutrazol, in particular when applied as a foliar spray, also increased the number of flowers on main and branch inflorescences relative to the control, but media drenched applications of paclobutrazol at doses of 1.250 and 2.500 mg a.i./plant resulted in consistent significant reductions in the number of flowers on branch inflorescences. Chemical name used: (±)-(R*,R*)-β[(4-chlorophenyl)methyl]-α-(1,1-dimethyl)-1H-1,2,4-triazole-1-ethanol (paclobutrazol).

scholarly journals Investigation of some morphological traits in studied lentil (Lens culinaris Medik.) genotypes grown with foliar application of nanosized ferric oxide / Badania nad niektórymi cechami morfologicznymi wybranych genotypów soczewicy (Lens culinaris Medik.) hodowanych w obecności nanocząstek tlenku żelaza

2015 ◽  
Vol 69 (2) ◽  
Author(s):  
Naser Sabaghnia
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Lens Culinaris ◽  
Foliar Application ◽  
Foliar Spray ◽  
Positive Association ◽  
Biological Yield ◽  
Strong Positive Association ◽  
Semi Arid ◽  
Number Of Branches

AbstractInterest in growing lentil (Lens culinaris Medik.) is increasing due to its potential returns relative to other legume crops in semi-arid areas. An experiment was conducted to examine the important traits on lentil under application of nano-fertilizer by using eight genotypes with application of the biplot technique in visualizing research data. Nano-iron oxide (2 g L-1) was utilized as foliar spray during vegetative and reproductive stages. The study revealed that genotype by trait (GT) biplot can graphically display the interrelationships among traits and facilitate visual comparison of genotypes. The first two principal components (PC1 and PC2) accounted for 76% of the total variation. The polygon view of GT biplot suggested four sections for the lentil genotypes as well as traits. The vertex genotypes G1 had plant height, number of branches per plant, number of pods per plant, 100-grains weight and grain yield traits. The most prominent relation were: a strong positive association among biological yield, number of branches per plant, number of pods per plant, grains yield and plant height as indicated by the small obtuse angles between their vectors. The traits’ relationship in the semi-arid was highly variable, and grain yield improvement can be achieved by selecting for number of pods per plant, 100-grains weight. We suggest that the GT biplot be used jointly to better understand and more fully explore interaction pattern data.

scholarly journals Evaluation of Promalin to promote growth of young mangosteen seedlings.

1969 ◽  
Vol 94 (1-2) ◽  
pp. 105-109
Author(s):  
Ricardo Goenaga
Keyword(s):  
Puerto Rico ◽  
Field Study ◽  
Plant Height ◽  
Treatment Initiation ◽  
Foliar Spray ◽  
Stem Diameter ◽  
Garcinia Mangostana ◽  
One Year ◽  
Major Impediment ◽  
Number Of Branches

A major impediment to the development of a mangosteen (Garcinia mangostana L.) industry is the long pre-bearing stage that seedlings require to produce fruits. A field study was conducted to determine the effect of Promalin on the growth of mangosteen seedlings. Year-old seedlings were transplanted to the field in Santa Isabel, Puerto Rico. Four applications of Promalin were used as a foliar spray at concentrations of 0, 25, 50, 75, 100 and 125 mg/L beginning when seedlings were approximately 2.5 years old, and then every 10 to 15 weeks over a period of almost one year. Final measurements were made 10 weeks after the final application, and 353 days after treatment initiation, when seedlings were 3.5 years old. No significant differences were observed in plant height, stem diameter, or number of branches and leaves.

scholarly journals 630 Growth Regulators Affect the Morphology and Flowering of Argyranthemum, Calibrachoa, and Orthosiphon

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 506B-506
Author(s):  
Hope K. Onken ◽  
Terri W. Starman
Keyword(s):  
Plant Height ◽  
Foliar Spray ◽  
Internode Length ◽  
Stem Length ◽  
Internode Elongation ◽  
Flower Number ◽  
Node Number ◽  
New Crops ◽  
Pedicle Length ◽  
Plant Form

Argyranthemum frutescens `Sugar Baby', Calibrachoa hybrid `Million Bells Cherry Pink', and Orthosiphon stamineus `Lavender' are three vegetatively propagated specialty annuals that are recent introductions into the floriculture industry. It is important to understand how the growth and development of these new crops is best controlled. Rooted cuttings of these three species where transplanted into 10-cm pots on 7 Oct. and the plant growth regulator treatments were applied on 19 Oct. 1999. Foliar spray treatments included ancymidol at 66 and 132, daminozide at 2500 and 5000, paclobutrazol at 20 and 40, ethephon at 500 and 1000, and uniconazole at 10 and 20 mg/L. Uniconazole medium drench treatment was applied at 1 and 2 mg/L. Control was a water foliar spray. At harvest, plant height, plant width, number of flowers, pedicle length, stem length, stem node number and internode length, and fresh and dry weights were measured. Uniconazole spray at 20 mg/L reduced plant height and width without affecting the fresh and dry weights of Argyranthemum. Flower number was increased and pedicel length was reduced. The overall plant height and width of Calibrachoa were not reduced with 20 mg /L uniconazole foliar spray, but plant form was improved by decreased internode elongation. Uniconazole foliar spray at 20 mg/L reduced Orthosiphon stem and internode length. Ethephon reduced plant height, plant width, and flower number of all species. Branching and days to flower were increased in Orthosiphon. In all species, daminozide and paclobutrazol were found to be ineffective, while ancymidol spray and uniconazole drench stunted and distorted growth.

scholarly journals Characteristics of The Three Cultivar Physiological Growth of Jatropha curcass L. in Two Different Locations Based on Topography

2021 ◽  
Vol 28 (1) ◽  
pp. 31
Author(s):  
Kovertina Rakhmi Indriana ◽  
Cucu Suherman ◽  
Santi Rosniawaty ◽  
Sumadi Sumadi ◽  
Dodi Sukmayana
Keyword(s):  
Plant Growth ◽  
Chlorophyll Content ◽  
Plant Height ◽  
Block Design ◽  
Growth Characteristics ◽  
Spore Density ◽  
Single Factor ◽  
Randomized Block Design ◽  
Glomus Sp ◽  
Number Of Branches

The purpose of this study was to reveal the sensitivity of cross-location based on topography by giving different FMA consortiums to physiological growth characteristics in three Jatropha curcass L. cultivars. Based on these objectives, the nature of this research is verification. Experiments were carried out in two different places based on topography. The trial time starts from November 2017 to May 2018. Experiments A simple randomized block design (RBD) pattern consisting of fifteen treatment combinations is repeated twice. The experimental results showed that the dose of 10 gr FMA consortium (glomus sp., Acaulospora sp., Gigaspora sp.). With the same spore density gave the best performance of Jatropha plant growth in two different locations based on topography. Observation of chlorophyll content in leaves (age 21, 63, 21 DAP in two locations), plant height (age 21, 63, 21 DAP in two locations), stem diameter (age 21, 63, 21 DAP in two locations) and number of branches secondary (age 21 DAP in two locations) there was a significant effect on the single factor of giving the FMA consortium but there was no interaction between location and treatment.

scholarly journals Genetic variability and association of characters in Ethiopian hot pepper (Capsicum annum L.) landraces

2016 ◽  
Vol 61 (1) ◽  
pp. 19-36 ◽  
Author(s):  
Shimeles Aklilu ◽  
Bekele Abebie ◽  
Dagne Wogari ◽  
Adeferis T/Wolde
Keyword(s):  
Leaf Area Index ◽  
Leaf Area ◽  
Plant Height ◽  
Fruit Weight ◽  
Internode Length ◽  
Hot Pepper ◽  
Area Index ◽  
Pericarp Thickness ◽  
Fruit Diameter ◽  
Number Of Branches

Forty nine hot pepper accessions collected from different agroecologies were compared in a 7x7 simple lattice design to estimate genetic variability and understand the association of characters. Plant characters and yield components were evaluated and analyzed accordingly. The values of genotypic correlation coefficients were higher in magnitude than phenotypic values in most instances in which fruit yield per plant showed high positive significant genotypic correlation value with pericarp thickness (r = 0.91) and number of fruits per plant (r = 0.61). On the other hand, significant negative associations were registered with days to flowering (r = -0.73) and 50% fruiting period (r = -0.75). The phenotypic correlation coefficient of most characters with yield was not significant except for flowering period, fruit length and number of fruits per plant. The path coefficient analysis indicated that pericarp thickness (mm) (5.5), fruit diameter (mm) (1.4), number of fruits per plant (0.8), number of branches (0.33) and flowering period (0.2) had the highest direct positive effect. However, fruit weight (-2.8), number of internodes (-1.66), leaf area index (-1.6) and plant height (-0.4) had a high negative direct effect on yield. The genetic component analysis indicated that phenotypic coefficient of variation (PCV) was higher in magnitude than genotypic coefficient of variation (GCV) for most characters except pericarp thickness and leaf area index. Higher magnitude of GCV was observed in leaf area index (67%) followed by pericarp thickness (34%), number of branches, internode length (23%) and plant height. Close estimates of GCV and PCV were recorded from fruit and internode length, pericarp thickness and fruiting period. Very high PCV and very low GCV estimates were obtained from fruit weight and number of fruits, fruit yield, plant height and canopy width. Broad sense heritability was high for fruiting date, fruit length, plant height, internode length and fruit diameter. However, genetic advance as percent of the mean (GAM) was high to moderate for length and number of internodes, number of branches, fruit diameter and weight, pericarp thickness and leaf area index. Therefore, from this study, fruit diameter, pericarp thickness, leaf area index and internode length exhibited high to moderate genotypic and phenotypic coefficients of variation along with medium to high heritability and genetic advance and can be used as a selection criterion for pepper improvement program.

scholarly journals Seed primig and foliar application of plant growth regulators affect the growth and yield of okra under calcareous soils

2019 ◽  
Vol 18 (4) ◽  
pp. 25-33
Author(s):  
Muhammad T. Tahir ◽  
Muhammad A. Anjum ◽  
Muhammad Saqib ◽  
Muhammad F. Khalid ◽  
Sajjad Hussain
Keyword(s):  
Seed Germination ◽  
Plant Growth ◽  
Plant Height ◽  
Fruit Set ◽  
Calcareous Soils ◽  
Foliar Spray ◽  
Seed Priming ◽  
Growth And Yield ◽  
Pod Yield ◽  
Number Of Branches

A field study was conducted to evaluate the effect of different plant growth regulators (PGRs) applied through seed priming and foliar spray on growth and yield of three okra cultivars grown under calcareous soils. The cultivars of Punjab Selection and Sabzpari produced significantly higher number of branches and leaves per plant, pod length and diameter and pod yield as compared to cv. Green ferry, while, cv. Punjab selection produced significantly greater number of flowers and pods per plant as compared to other two cultivars. Seed germination (%), plant height, and fruit set (%) were not affected by the cultivars. Among the PGR treatments, seed primed with GA3 resulted in significantly higher germination percentage and greater plant height at flowering. Seed priming and foliar spray with NAA and GA3 were effective in increasing the final plant height, number of branches, number of leaves, number of flowers and number of pods per plant and fruit set (%), fresh weight per pod and pod yield. However, pod diameter, pod moisture content and dry weight per pod were not influenced by the PGR treatments applied. These results suggested that the PGRs have great potential to improve seed germination, enhance growth and increase yield of okra cultivars under calcareous soils.

scholarly journals Effect of sulphur on the seed yield and oil content of sesame (Sesamum indicum L.)

2019 ◽  
Vol 17 (1) ◽  
pp. 33-38
Author(s):  
Swapan Kumar Paul ◽  
Mosa Morsheda Khatun ◽  
Md Abdur Rahman Sarkar
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Dry Matter ◽  
Oil Content ◽  
Dry Matter Production ◽  
Production Plant ◽  
Matter Production ◽  
Stover Yield ◽  
Number Of Seeds ◽  
Number Of Branches

Sulphur is a component of plant amino acids, proteins, vitamins, and enzyme structures which influence the productivity of oil seed and total oil content. The experiment was conducted to find out the effect of sulphur on the seed yield and oil content of sesame in Bangladesh. The experiment comprised three varieties of sesame viz. Binatil-2, Binatil-3 and BARI Til-4 and six levels of sulphur (S) viz. 0, 10, 20, 30, 40 and 50 kg S ha–1. The experiment was laid out in a randomized complete block design with three replications. Dry matter production, crop characters, yield components, seed yield and oil content were significantly influenced by variety, level of sulphur and their interaction. The highest dry matter production plant–1 at 50 DAS (17.56 g), plant height (101.3 cm), number of branches plant–1 (3.66),  number of pods plant-1 (41.56), number of seeds pod-1 (58.83),  seed yield    (747.2 kg ha-1), stover yield (2243.0 kg ha–1) and oil content (40.03%) were obtained in BARI Til-4 while the corresponding lowest values of all parameters were recorded in Binatil-2. In case of sulphur application, the highest dry matter production plant–1 at 50 DAS (20.81 g), plant height (109.7 cm), number of branches plant–1 (3.87),  number of pods plant–1 (46.13),  number of seeds pod-1 (56.67),  seed yield (800.0 kg ha–1), stover yield (2787 kg ha–1 ) and oil content (43.97%) were obtained when crop was fertilized with 30 kg S ha–1 while the lowest seed yield (502.2 kg ha–1), stover yield (1550.0 kg ha–1) and oil content (32.80%) were obtained in control (0 kg S ha–1). BARI Til-4 fertilized with 30 kg S ha–1 produced the highest dry matter plant–1 at 50 DAS (24.80 g), number of pods plant–1 (51.13), seeds pod–1 (62.0) and seed yield (1011.0 kg ha–1). The highest oil content (43.97%) was also recorded in BARI Til-4 fertilized with 30 kg S ha–1, which was as good as that of BARI Til-4 fertilized with 40 kg S ha–1. Therefore, BARI Til-4 fertilized with 30 kg S ha–1 can be considered as a promising practice in respect of seed yield and oil content of sesame in Bangladesh. J. Bangladesh Agril. Univ. 17(1): 33–38, March 2019

scholarly journals Assessment of Growth Characteristics of Medicinal Plants Ocimum tenuiflorum L. and Plectranthus amboinicus (Lour.) Spreng. Under Shade Net and Open Conditions

2020 ◽  
pp. 1-8
Author(s):  
J. Ambujavalli ◽  
K. Santhiya ◽  
K. Rohini ◽  
V. Kumaresan
Keyword(s):  
Medicinal Plants ◽  
Leaf Area ◽  
Plant Height ◽  
Growth Characteristics ◽  
Similar Type ◽  
Potted Plants ◽  
Ocimum Tenuiflorum ◽  
Number Of Leaves ◽  
Plectranthus Amboinicus ◽  
Microclimate Conditions

Aim: To study the effect of shade net on the growth characteristics of two medicinal plants viz., Tulsi and Indian Borage in terms of plant height, number of leaves, leaf area and flowering in relation to open condition. Place and Duration of Study: Lawspet, Puducherry, India between June 2018 and October 2018. Methodology: Tulsi and Indian Borage plants were grown in similar type of soil. The potted plants were kept in open, 35% and 75% shade net conditions and studied for 3 months. The plant height, number of leaves, and leaf area were measured including number of inflorescence branches for Tulsi. Results: The average air temperature was lower under shade net. Relative humidity was more in shade net conditions with maximum in 75% shade and least in open conditions. The number of leaves of Tulsi and Indian Borage recorded was maximum when grown under 35% shade and least in open conditions. Plant height was maximum in 75% shade for Tulsi and 35% shade in Indian Borage and least in open conditions on both the cases. Leaf area was maximum for both Tulsi and Indian Borage in 75% shade. Conclusion: Growth of the two medicinal plants was influenced by the microclimate conditions. The present study shows that the medicinal plants can be grown in shade net conditions to increase the yield of medicinally useful parts.

scholarly journals Nano Zinc-Oxide Enhanced Photosynthetic Apparatus and Photosystem Efficiency of Maize (Zea Mays L.) in Sandy-Acidic Soils

2022 ◽  
Author(s):  
Wiqar Ahmad ◽  
Jaya Nepal ◽  
Xiaoping Xin ◽  
Zhenli He
Keyword(s):  
Zinc Oxide ◽  
Plant Height ◽  
Photosynthetic Apparatus ◽  
Foliar Spray ◽  
Growth And Yield ◽  
Photochemical Quenching ◽  
Nano Zno ◽  
Chlorophyll Pigments ◽  
Spad Value ◽  
Application Methods

Abstract Conventional Zinc (Zn) fertilization (e.g., zinc sulfate) often leads to poor availability in soils. Zinc oxide nanoparticles (nano ZnO) can be a potential solution, but their effect on crop photosynthetic activity isn’t well documented. The effects of nano ZnO (50, 100, 150, 200 mg L-1) and application methods (seed-coating, soil-drench, and foliar-spray) in comparison with ZnSO4 recommended dose were evaluated for plant height, biomass, chlorophyll pigments and photosystem efficiency in a greenhouse pot experiment. 100 mg L-1 of nano ZnO significantly increased the chlorophyll (Chl.) a, b, a+b, carotenoids (x+c), a+b/x+c, SPAD, leaf Chl., total chlorophyll content plant-1, plant height and total biological yield (by 18-30%, 33-67%, 22-38%, 14-21%, 14-27%, 12-19%, 12-23% 58-99%, 6-11% and 16-20%, respectively) and reduced Chl. a/b (by 6-22%) over the other treatments (p<0.01) irrespective of application methods. Nano ZnO applied at 100 mg L-1 significantly increased photochemical quenching (qP) and efficiency of photosystem II (EPSII) compared to 150 and 200 mg L-1 regardless of application methods. The positive correlations between Chl. a and Chl. b (r2 0.90), Chl. a+b and x+c (r2=0.71), SPAD and Chl. a (r2=0.90), SPAD and Chl. b (r2=0.94) and SPAD and Chl. a+b (r2=0.93) indicates a uniform enhancement in chlorophyll pigments; SPAD value, qP, EPSII, and growth and yield parameters. This elucidates that the application of nano ZnO at 100 mg L-1 promotes corn biochemical health and photosynthesis, irrespective of the application method. These findings have a great propounding for improving plant growth through nano ZnO bio-fortification in acidic Spodosols.

scholarly journals Adaçayı ve Dağ Çayında Tuz Stresi Üzerine Selenyum Uygulamalarının Etkileri

2019 ◽  
Vol 7 (sp2) ◽  
pp. 29
Author(s):  
Mahmut Çamlıca ◽  
Gülsüm Yaldız ◽  
Ferit Özen ◽  
Abdurrahman Başol ◽  
Halit Aşkın
Keyword(s):  
Plant Height ◽  
Root Length ◽  
Root Weight ◽  
Fresh Leaf ◽  
Leaf Weight ◽  
Number Of Leaves ◽  
Shoot Weight ◽  
Different Doses ◽  
Number Of Branches ◽  
Fresh Root

Sage and mountain sage belong to Lamiaceae family which have commercial importance from medicinal and aromatic plants in Turkey. The aim of this study was to evaluate the effects of different doses of selenium in salinity conditions on the morphological characteristics of sage (Salvia officinalis L.) and mountain tea (Sideritis sp.). Four different doses of selenium (5, 10, 20, 40 mg/l) were applied in without salinity (0) and salinity (250 mM NaCl/l) medium. The experiment was carried out in the split plot design with three replications in the climate chamber room of the department of field crops. When the examined properties were evaluated; plant height changed between 15.56-23.85 cm, number of branches 10.50-12.78 number/plant, number of leaves 52.78-92.00 number/plant, fresh leaf weight 2.48-7.51 g/plant, dry leaf weight 0.48-3.32 g/plant, fresh root weight 1.52-7.16 g/plant, dry root weight 0.19-1.24 g/plant, root length 26.18-36.07 cm, fresh shoot weight of 1.13-7.15 g/plant and dry shoot weight 0.13-0.38 g/plant. In mountain tea, the properties were determined for plant height as 3.26-5.93 cm, for number of branches as 2.50-6.33 number/plant, for number of leaves as 28.22-91.14 number/plant, for fresh and dry leaf weights as 2.42-11,03 and 0.45-1.91 g/plant, for fresh and dry root weights as 0.71-3.97 and 0.18-0.74 g/plant, for root length as 14.78-33.26 cm, for fresh and dry shoot weights as 0.29-2.28 and 0.12-0.41 g/plant were determined. As a result of this study, 5 mg/l selenium application in salinity conditions in both plants has reached high values in terms of fresh leaf weights. In addition to this, it was found that selenium applications in salinity conditions had positive effects on dry leaf weight in sage and fresh root and fresh shoot weights in mountain tea. As a result of correlation analysis, positive correlations were found between dry leaf weight and other characteristics especially in mountain tea in terms of traits examined in both plants.

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