scholarly journals Influence of Benzyladenine, Trinexapac-ethyl, or Uniconazole Applications on Height and Tillering of Six Ornamental Grasses

2009 ◽  
Vol 19 (4) ◽  
pp. 737-742 ◽  
Author(s):  
Sonali R. Padhye ◽  
Judith K. Groninger
Keyword(s):  
Plant Height ◽  
Initial Treatment ◽  
Tiller Number ◽  
The Other ◽  
Miscanthus Sinensis ◽  
Foliar Sprays ◽  
Ornamental Grasses ◽  
Cortaderia Selloana ◽  
Spray Applications

Three ornamental grasses, each within the families Cyperaceae [leatherleaf sedge (Carex buchananii), ‘Frosted Curls’ sedge (Carex comans), and ‘Toffee Twist’ sedge (Carex flagellifera)] and Poaceae [‘Rosea’ pampas grass (Cortaderia selloana), ‘Gracillimus’ miscanthus (Miscanthus sinensis), and muhly grass (Muhlenbergia capillaris)], received two foliar sprays 2 weeks apart of benzyladenine (BA) at 500 or 1000 mg·L−1, trinexapac-ethyl (TE) at 220 mg·L−1, or uniconazole at 20 or 40 mg·L−1. The influence of these spray applications on plant height and tiller number was assessed 0, 2, 4, and 8 weeks after the initial treatment (WAIT). Benzyladenine applications did not suppress the height of leatherleaf sedge or ‘Gracillimus’ miscanthus, yet did suppress the height of the other ornamental grasses by <15% compared to the controls, depending on the concentration used and the time. Applications of BA increased tiller production only in ‘Toffee Twist’ sedge at 2 and 4 WAIT compared to the controls; however, at 8 WAIT, this increase was diminished. Depending on the species, uniconazole suppressed the height of the Cyperaceae grasses by 11% to 22% compared to the controls at 8 WAIT. In Poaceae species, uniconazole suppressed the height of only ‘Rosea’ pampas grass by up to 32% compared to the controls. Uniconazole applications did not increase the tillering of any ornamental grasses tested, except ‘Toffee Twist’ sedge at 8 WAIT. Within Cyperaceae, TE suppressed the height of only ‘Toffee Twist’ sedge compared to the controls, while TE effectively controlled the height of all Poaceae grasses. Based on the species and time, TE application elicited up to 37% height suppression compared to the controls of Poaceae grasses, while it did not influence the tiller number of any ornamental grasses in this study.

scholarly journals 018 EFFECTS OF ANCYMIDOL, PACLOBUTRAZOL, AND UNICONAZOLE ON GROWTH AND FLOWERING OF ACHIMENES cv HILDA UNDER TWO LIGHT LEVELS

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 430b-430
Author(s):  
J. C. Vlahos
Keyword(s):  
Plant Height ◽  
Light Level ◽  
The Other ◽  
Growth Retardants ◽  
Axillary Shoots ◽  
Full Sunlight ◽  
Foliar Sprays ◽  
Light Levels ◽  
Mode Of Application ◽  
Reduced Light

Plants of Achimenes cv Hilda were treated with foliar sprays of Ancymidol, Paclobutrazol and Uniconazole at 3 different concentrations each, and were placed in a greenhouse at 21°C under 2 light levels (0 and 40% light exclusion) for 12 weeks. Reduced light level decreased plant height, number of axillary shoots and flowers. The three growth retardants in any concentration, supressed development of axillary shoots and flowers. Ancymidol at 25 and 50 mg.1-1, Uniconazole at 5 mg.1-1 and Paclobutrazol at 25, 50 or 100 mg.1-1 decreased plant height and number of leaf whorls. Number of rhizomes was reduced by the 3 chemicals at the highest concentration only. Paclobutrazol was most effective than the other 2 growth retardants. Effects of treatments were more pronounced under shade rather than in full sunlight. Days to anthesis was not affected by any of the treatments except by Paclobutrazol at 100 mg.1-1. The use of these growth retardants in concentration and mode of application similar to those used in this study is not recommended for “Hilda” as height retardation significantly reduces number of flowers

scholarly journals 774 PB 360 THE RESPONSE OF IRIDON CHRYSANTHEMUMS TO DIFFERENT KINDS OF GROWTH REGULATORS

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 543e-543
Author(s):  
Eddie B. Williams ◽  
William F. Hayslett ◽  
Sabrina L. Shaw
Keyword(s):  
Plant Height ◽  
Growth Regulators ◽  
Initial Treatment ◽  
Dry Weight ◽  
Water Soluble ◽  
The Other ◽  
Trimethylammonium Chloride ◽  
Fresh Weight ◽  
Total Dry Weight ◽  
Total Fresh Weight

Growth regulators were applied on Iridon Chrysanthemums during the month of January, 1993 to determine their response. The growth regulators used were uniconizole, [(E)-(+)-(S)-I-(4-chlorophenyl)-4,4 dimethyl-2-(1,2,4-trazol-lyl)-1-pent-lene-3-01],daminozide [(butanedoic acid mono (2,2dimethyl hydraide)], ancymidol [a-cyclopropyl-a-(p-methoxy-phenyl)-5-pyridinemethanol] and chlormequat* (2-chloroethyl) trimethylammonium chloride (not labeled for mums). The daminozide treated plants received a second application 14 days after the initial treatment. Peters 20-20-20 NPK water soluble all purpose fertilizer were used for all treatments. There were significant differences in plant height, total fresh weight, total dry weight, total number of flowers, and total number of buds due to treatment. Uniconizode had the greatest effect on plant height, and the other parameters observed. Although there were differences between the uniconizide and daminozide treated plants for number of flowers and number of buds, these differences were not significant.

scholarly journals The Effect of Ornamental Grasses Used as a Windscreen on Chili Pepper Yield

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 667e-667 ◽  
Author(s):  
C.B. McKenney ◽  
Helen Tyler
Keyword(s):  
Capsicum Annuum ◽  
Chili Pepper ◽  
Perennial Grasses ◽  
Miscanthus Sinensis ◽  
Evaporative Demand ◽  
Wind Resistance ◽  
Aesthetic Form ◽  
Ornamental Grasses ◽  
Pennisetum Setaceum ◽  
Cortaderia Selloana

Chili pepper yield may be hampered by wind-blown sand and high evaporative demand common in semiarid regions. Initial establishment of the crop is of great importance to overall yield. Due to their reduced size, ornamental grasses could serve as windscreens in urban gardens. In this project, seven species of ornamental grasses (Cortaderia selloana `Pumila', Erianthus ravennae, Miscanthus sinensis `Autumn Light', Miscanthus sinensis `Gracillimus', Miscanthus sinensis `Silberfeder', Miscanthus sinensis `Variegatus', Miscanthus sinensis `Zebrinus', and Pennisetum setaceum `Rubrum') were used as aesthetic windscreens. Capsicum annuum `NuMex Big Jim' chili pepper yield was significantly affected by species of grass in the windscreen. The number of peppers per plant was also significantly affected by species; however, the weight of each pepper was not significantly impacted. Effect of species of ornamental grass in the windscreen may be due to differences in wind resistance, moisture competition, or shading between species. The durability, increase in yield, and aesthetic nature of the ornamental grasses used as windscreens provides several reasons to take advantage of these perennial grasses for an aesthetic form of garden protection.

scholarly journals Heterosis dan Heterobeltiosis Hasil Gabah Serta Korelasinya Terhadap Pertumbuhan Padi Hibrida

2019 ◽  
Vol 15 (2) ◽  
pp. 92-100
Author(s):  
Nurwulan Agustiani ◽  
Sujinah Sujinah ◽  
Bayu P Wibowo ◽  
Satoto Satoto
Keyword(s):  
Leaf Area ◽  
Plant Height ◽  
Block Design ◽  
Tiller Number ◽  
F1 Hybrids ◽  
Grain Number ◽  
Average Value ◽  
Positive Heterosis ◽  
Growth Characters ◽  
Grain Number Per Panicle

Heterosis in F1-hybrids is very closely related to processes during plant growth. The purpose of this study was to obtain information on some growth characters that supported positive heterosis for yield.  The experiment was carried out at KP. Sukamandi on the rainy season in 2016, used a Randomized Block Design with three replications. The material used in this study were four superior hybrid varieties (Hipa 9, Hipa 18, Hipa 19, and Hipa East Java 2) and their parents (maintainer and restorer strains). The results showed that the four materials tested had positive heterosis values ​​with an average value of 4.23-25.03% for the characters of plant height, tiller number, grain number per panicle, weight of 1000 grains, and yield. Heterobeltiosis values ​​ranged from 2.06% to 13.62% for the characters of plant height, tiller number, grain number per panicle, and yield.  Growth characters that were positively correlated to yield increase were plant height, leaf area in the primordia phase, and weight of 1000 grains. The four hybrid materials tested had similar leaf area per clump in the primordia phase, but only Hipa Jatim 2 still had the highest leaf area in the physiological cooking phase. All four hybrids had better leaf thickness characteristics than their parents. F1 average showed increased number of grain per panicle compared to the two parents, especially in Hipa 18 and Hipa 19, which had a higher weight per 1000 grains than the two parents. Keywords: hybrids, rice, heterosis, heterobeltiosis   ABSTRAK Heterosis pada F1-hibrida sangat berkaitan erat dengan proses-proses selama pertumbuhan tanaman. Tujuan penelitian ini adalah untuk mendapatkaninformasibeberapa karakter pertumbuhan yang mendukung heterosis positif terhadap hasil. Percobaan dilaksanakan di KP. Sukamandi pada musim hujan 2016, menggunakan Rancangan Acak Kelompok dengan tiga ulangan. Materi yang digunakan dalam penelitian ini adalah empat varietas unggul hibrida (Hipa 9, Hipa 18, Hipa 19, dan Hipa Jatim 2) dan tetuanya (galur maintainer dan restorer). Hasil penelitian menunjukkan bahwa keempat materi yang diuji mempunyai nilai heterosis positif dengan nilai rata-rata 4,23-25,03% pada karakter tinggi tanaman, jumlah anakan, jumlah gabah per malai, bobot 1000 butir, dan hasil. Nilai heterobeltiosis berkisar antara 2,06% sampai 13,62% pada karakter tinggi tanaman, jumlah anakan, jumlah gabah per malai, dan hasil. Karakter-karakter pertumbuhan yang berkorelasi positif terhadap peningkatan hasil yaitu tinggi tanaman, luas daun pada fase primordia, dan bobot 1000 butir. Keempat materi hibrida yang diuji mempunyai luas daun per rumpun yang setara pada fase primordia, namun hanya Hipa Jatim 2 yang masih mempunyai luas daun tertinggi pada fase masak fisiologis,.  Keempatnya mempunyai karakter ketebalan daun yang lebih baik dibanding tetuanya. Rata-rata F1 menunjukkan perbaikan jumlah gabah per malai dibanding kedua tetuanya, terlebih pada Hipa 18 dan Hipa 19 yang juga mempunyai bobot 1000 butir lebih tinggi dibandingkan kedua tetuanya. Kata kunci: hibrida, pada, heterosis, heterobeltiosis

scholarly journals Çukurova Bölgesi Koşullarında Farklı Zamanlarda Ekimi Yapılan Brüksel Lahanalarında Bitki Gelişimi, Verim ve Baş Kalitesi

2019 ◽  
Vol 7 (7) ◽  
pp. 1062
Author(s):  
İbrahim Burak Yılmaz ◽  
Nebahat Sarı
Keyword(s):  
Vitamin C ◽  
Antioxidant Capacity ◽  
Plant Height ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Growth Yield ◽  
The Other ◽  
Total Phenolic ◽  
Brussels Sprout ◽  
Main Shoot

In this study, plant growth, yield and sprout quality were investigated by planting at three different periods in three different Brussels sprout varieties in Çukurova Region. In this research, the effects of four different sowing and planting times on plant height (cm), main shoot diameter (mm), leaf number (number/plant), yield (g/m2), sprout weight (g), sprout diameter (mm), sprout height (mm), vitamin C (mg/100 g), antioxidant capacity [μmol trolox equivalents (TE)/g] and total phenolic content [mg gallic acid equivalent (GAE)/100 g] were investigated in Franklin Fı, Maximus Fı and Divino Fı Brussels sprout varieties. According to the research results; Maximus Fı variety was found to be longer, thicker and more leafy than the other varieties in terms of plant height, main shoot diameter and number of leaves. Based on yield, Maximus Fı variety was recorded to be more efficient (584.88 g/m2) than the other varieties (367.97 g/m2 and 259.82 g/m2 in Franklin Fı and Divino Fı, respectively). Maximus Fı was superior than the other Brussels sprout varieties, Franklin Fı and Divino Fı in terms of sprout weight, sprout diameter and sprout height. When the planting times were evaluated, it was recorded that the 1st period was more suitable in terms of both yield and sprout characteristics compared to the other periods. In the vitamin C content, antioxidant capacity and total phenolic content, Franklin Fı was showed higher rates than the other varieties and more nutrient content was detected in the late plantings.

scholarly journals Influence of Mother Rhizome Retrieval and Organic Treatment of the Retrieved Plants on Economic Yield of Ginger at Salyan, Nepal

2018 ◽  
Vol 35 (1) ◽  
pp. 203-209
Author(s):  
M. Basnet ◽  
H. Gurung
Keyword(s):  
Plant Height ◽  
Applied Field ◽  
Block Design ◽  
Tiller Number ◽  
Cost Ratio ◽  
Benefit Cost Ratio ◽  
Randomized Block Design ◽  
Retrieval Factor ◽  
Benefit Cost ◽  
And Control

An experiment was conducted at Salyan, Nepal to assess the mother rhizome retrieval and organic treatment of the same retrieved plant on economic yield of ginger during 2015/16.‘ Kapurkot Aduwa-1’, a superior Nepalese variety was used for this experiment. Two dates i.e. 1 September and 7 September were used as a time of retrieval factor and seven organic treatments i.e. Trichoderma, Jeevatu, Bordeaux paste, mixture of neem and timur dust, vermicompost, jholmal and control as second factor and these 14 treatment combinations were laid out in factorial randomized block design with three replications. The plant height, leaf number, tiller number was found to be significantly highest with vermicompost treatment on all days 5 days interval after harvesting of the mother rhizome whereas the lowest was observed at control. The mother rhizome yield and fresh rhizome was found to be significantly highest on vermicompost applied field with 1.7 t/ha and 22.8 mt/ha respectively and lowest fresh rhizome yield (15.5. t/ha) was found with control. The disease yield was significantly lowest (0 t/ha) and highest (0.2 t/ha) with the control. Benefit cost ratio was found to be significantly highest (1.74) and lowest at control (1.32).

scholarly journals Effect of phosphorus rate on growth, nodulation and biomass yield of green manure crops

1970 ◽  
Vol 7 (1) ◽  
pp. 23-28
Author(s):  
MYA Pramanik ◽  
MAR Sarkar ◽  
MS Uddin ◽  
GM Faruk
Keyword(s):  
Glycine Max ◽  
Plant Height ◽  
Vigna Unguiculata ◽  
Green Manure ◽  
Biomass Yield ◽  
Growth Period ◽  
The Other ◽  
Phosphorus Fertilization ◽  
Sesbania Rostrata ◽  
Green Manure Crops

The effect of phosphorus rate on plant height, biomass yield and nodulation of green manure crops was investigated. Seven green manure species viz. Sesbania rostrata, Sesbania aculeata, Crotalaria juncea, Vigna unguiculata, Phaseolus mungo, Vigna radiata and Glycine max and three phosphorus rates viz. 18, 27 and 36 kg P ha-1 were used. Plant height was different for each green manure crops during the growth period though phosphorus fertilization had no significant effect on plant height and biomass yield. On the other hand, phosphorus fertilization had significant effect on nodulation of green manure crops. The number of nodules plant-1 increased significantly with the age of the plants up to 60 days after sowing (DAS) and thereafter declined sharply at 75 DAS. The highest number of nodules plant-1 was produced at 36 kg P ha-1 followed by 27 kg P ha-1. The lowest number of nodules plant-1 was produced at 18 kg P ha-1. Keywords: Green manure crops; Phosphorus; Growth; Nodulation; Biomass yield DOI: 10.3329/jbau.v7i1.4793 J. Bangladesh Agril. Univ. 7(1): 23-28, 2009

scholarly journals Effects of Site, Genotype and Subsequent Harvest Rotation on Willow Productivity

Agriculture ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 412 ◽  
Author(s):  
Mariusz Jerzy Stolarski ◽  
Michał Krzyżaniak ◽  
Dariusz Załuski ◽  
Józef Tworkowski ◽  
Stefan Szczukowski
Keyword(s):  
Survival Rate ◽  
Plant Height ◽  
Biomass Yield ◽  
High Impact ◽  
The Other ◽  
Plant Survival ◽  
Dry Biomass ◽  
The Mean ◽  
Very High ◽  
Biometric Features

Perennial crops harvested in short rotations provide substantial amounts of biomass. This study determined the survival rate, biometric features and yield of fresh and dry biomass of 15 willow genotypes (including seven varieties and eight clones), cultivated at two different sites in two consecutive three-year harvest rotations. The study revealed the very high impact of the genotype (81% of the total variance) on the willow yield. The harvest rotation, along with the genotype, had a significant impact on the plant survival rate and the number of shoots per stool. Willow biomass was mainly affected by the plant height, its survival rate and shoot diameter. The significantly highest fresh (106 Mg ha−1) and dry biomass yield (54.0 Mg ha−1) was obtained from the Żubr variety of S. viminalis, which distinguished this variety from the other genotypes. The mean yield for the best three and five genotypes was 13% and 17% lower, respectively, and the mean yield for the whole experiment was 37% lower compared to the mean yield of the best variety (Żubr). Therefore, the choice of a willow genotype is of key importance for successful willow production.

Phosphorus seed coatings for pasture species. II. Comparison of effectiveness of phosphorus applied as seed coatings, drilled or broadcast, in promoting early growth of phalaris (Phalaris aquatica L.) and lucerne (Medicago sativa L.)

1988 ◽  
Vol 39 (3) ◽  
pp. 447 ◽  
Author(s):  
JM Scott ◽  
GJ Blair
Keyword(s):  
Medicago Sativa ◽  
Plant Height ◽  
Early Growth ◽  
The Other ◽  
Fertilizer Treatment ◽  
Seed Coating ◽  
Phalaris Aquatica ◽  
Medicago Sativa L ◽  
Application Methods ◽  
P Sources

The relative efficiency of phosphorus (P) seed coatings and drilled and broadcast applications of P was investigated in a glasshouse experiment conducted with phalaris (Phalaris aquatica L.) and lucerne (Medicago sativa L.) in P-deficient soil. Two P sources (monocalcium phosphate [MCP] and dicalcium phosphate [DCP]) were used at three rates in seed coatings (0, 5 and 10 kg P ha-1) or at six rates each of drilled or broadcast applications (0, 2.5, 5, 10, 20 and 40 kg P ha-1). MCP coatings severely reduced lucerne emergence and hence yield, but had little effect on phalaris emergence. No other fertilizer treatment affected emergence. The height of phalaris plants at 27 days after sowing (d.a.s.) was increased as much by seed coatings containing MCP at 5 kg P ha-1 as by drill or broadcast applications of MCP at 20 kg P ha-1. Plant height of the MCP seed coating treatments was also less variable than the other application methods, suggesting that the coatings provided more uniform access to P. Seed coatings containing DCP at 10 kg P ha-1 increased phalaris plant height more than did drilled or broadcast applications at 40 kg P ha-1, but there was no effect of any DCP treatment on lucerne growth at 27 d.a.s. The relatively large differences observed in plant height between different application methods at 27 d.a.s. diminished over time until, at 57 d.a.s., only small differences were evident. The dry matter yield and P content of both species were increased by increasing rates of MCP, but DCP had little effect at any rate. The reduced differences between the seed coating treatments and the other application methods at harvest may have been due to the limited soil volume of the pots used; further work is necessary in larger soil volumes to determine the significance of the early growth advantage conferred on phalaris by the phosphorus seed coatings, and to find ways of protecting lucerne from soluble P sources during germination.

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