scholarly journals Impact of Augeo, Configure and Florel on Hydrangea Branching

2013 ◽  
Vol 31 (1) ◽  
pp. 27-29
Author(s):  
K.A. Hester ◽  
G. Bi ◽  
M.A. Czarnota ◽  
A. Fulcher ◽  
G.J. Keever ◽  
...  
Keyword(s):  
Plant Growth ◽  
Growth Regulator ◽  
Plant Growth Regulator ◽  
Research Priority ◽  
Hydrangea Macrophylla ◽  
Crop Injury ◽  
Number Of Branches ◽  
Growth Regulator Treatment

Hydrangeas are an increasingly popular group of shrubs which are prized for their showy inflorescence. Nursery crop producers grow numerous hydrangea varieties for the landscape and florist markets. Hydrangeas are typically hand-pruned during propagation and production to promote compaction and to increase the number of branches which has potential for increasing blooms and marketability. Identifying a plant growth regulator (PGR) treatment that effectively improves the architecture of hydrangeas became an IR-4 Project research priority for 2011. Research evaluating Augeo (dikegulac sodium), Configure (benzyladenine) and Florel (ethephon) shows worthwhile results. Augeo (800 and 1600 ppm) significantly increased branching compared to untreated pots of florist varieties Hydrangea macrophylla ‘Merritt's Supreme’ and landscape varieties H. macrophylla ‘Nikko Blue’ and H. paniculata ‘Limelight’. Configure (300 ppm and 600 ppm) and Florel (500 and 1000 ppm) did not significantly improve branching in five of six trials compared to the control. Significant chlorosis on Augeo treated plants was observed initially but this diminished by 6 weeks after treatment (WAT) for four out of six trials. Little to no crop injury was observed with Configure or Florel treatments to hydrangea liners. This research shows promise for identifying a plant growth regulator treatment to meet the demand for improved branching on hydrangea.

Shiraz Wines Made from Grape Berries (Vitis vinifera) Delayed in Ripening by Plant Growth Regulator Treatment Have Elevated Rotundone Concentrations and “Pepper” Flavor and Aroma

2015 ◽  
Vol 63 (8) ◽  
pp. 2137-2144 ◽  
Author(s):  
Christopher Davies ◽  
Emily L. Nicholson ◽  
Christine Böttcher ◽  
Crista A. Burbidge ◽  
Susan E. P. Bastian ◽  
...  
Keyword(s):  
Plant Growth ◽  
Vitis Vinifera ◽  
Growth Regulator ◽  
Plant Growth Regulator ◽  
Grape Berries ◽  
Growth Regulator Treatment

scholarly journals Pengaruh Asal Bahan Stek dan Jenis Zat Pengatur Tumbuh (Zpt) pada Pertumbuhan Stek Daun Lidah Mertua (Sansevieria Trifasciata)

2016 ◽  
Vol 3 (2) ◽  
pp. 90-98
Author(s):  
Pienyani Rosawanti
Keyword(s):  
Plant Growth ◽  
Growth Regulator ◽  
Root Length ◽  
Plant Growth Regulator ◽  
Block Design ◽  
Dry Weight ◽  
Root Dry Weight ◽  
Wet Weight ◽  
Treatment Research ◽  
Growth Regulator Treatment

This research aims to study the growth response of plant leaf cuttings mother in-law�s tongue (Sansevieria parva) origin of cuttings and various plant growth regulator treatment. Research was using complete randomized block design (RAKL) with 6 replications. The first factor was the origin of cuttings, i.e. the top/tip leaves, the middle leave, and the bottom/leaves base. The second factor was the various plant growth regulator (PGR) treatment i.e. onion extracts, water coconut and Rootone-F. Parameters observed and measured is the experiment root length, number of roots, root wet weight and root dry weight. The results showed that plant growth regulator treatment significant effect on root length, number of roots, root wet weight, and root dry weight. The treatment combination of origin of cuttings and synthetic plant growth regulator by cutting material from the middle to give the best results on the number of root and root wet weight.

Effect of a plant growth regulator regime on internode length and weight of tillers in conventional and hybrid rye and the impact of nitrogen on crop performance

1997 ◽  
Vol 128 (2) ◽  
pp. 143-154 ◽  
Author(s):  
M. A. FROMENT ◽  
H. G. McDONALD
Keyword(s):  
Plant Growth ◽  
Growth Regulator ◽  
Plant Growth Regulator ◽  
Unit Length ◽  
Dry Weight ◽  
Internode Length ◽  
Stem Length ◽  
Winter Rye ◽  
Crop Performance ◽  
Growth Regulator Treatment

The effect of nitrogen and a plant growth regulator regime (chlormequat chloride followed by 2-chloroethylphosphonic acid) on the crop performance of a hybrid (cv. Luchs) and a conventionally bred winter rye (cv. Sentinel) were investigated in two field experiments each year between 1993 and 1995 at Winchester, UK. Internode length and dry weight/unit length of internodes was measured in order to assess the effect of the growth regulator regime on stem structure. Grain yields were 15% higher in the hybrid Luchs than in Sentinel. With high levels of applied nitrogen, both cultivars lodged in all seasons and this was most severe in 1994 when 88% of the crop lodged in Sentinel and 52% in Luchs. Plant growth regulator treatment consistently reduced lodging but did not eliminate it. Reductions in lodging were not always associated with an increase in grain yield. In the hybrid cultivar, the growth regulator treatment reduced yield in 1993 and 1995 when 2-chloroethyl-phosphonic acid was applied at GS49 and GS39 respectively, but increased yield in 1994 when applied at GS37. Growth regulator consistently reduced stem length, and the percentage reduction in length of the individual internodes within the stem was strongly influenced by the timing of the 2-chloroethylphosphonic acid component of the PGR treatment. Growth regulator reduced internode lengths by up to 25% in Sentinel and 35% in Luchs, and this was associated with reductions in the dry weight of internodes by up to 32% in Sentinel and 38% in Luchs. Consequently, dry weight/unit length of the stem was not increased by growth regulator treatment. Yield reductions in Luchs following growth regulator treatment may have been due to reduced stem reserves which have been associated with tolerance of stress in rye. Both cultivars were highly responsive to nitrogen. Economic optima varied from season to season, but they ranged over three years, from 175–273 kg/ha nitrogen, and were greater than the currently recommended application rates. Crop lodging increased with increasing nitrogen rate even when plant growth regulator was applied and yield penalties from lodging would have been high, if weather conditions during grain maturity had been unfavourable.

scholarly journals OBTAINING Artemisia cina POLYPLOIDY THROUGH PLANT GROWTH REGULATOR TREATMENT IN SHOOT CULTURE

2015 ◽  
Vol 37 (2) ◽  
Author(s):  
Maria Marina Herawati ◽  
Endang Pudjihartati ◽  
Suwijiyo Pramono ◽  
Endang Sulistyaningsih ◽  
Aziz Purwantoro
Keyword(s):  
Plant Growth ◽  
Growth Regulator ◽  
Plant Growth Regulator ◽  
Shoot Culture ◽  
Growth Regulator Treatment

scholarly journals Pertumbuhan dan Perkembangan Protocorn Like Bodies (PLB) Anggrek Papua Dendrobium discolor dengan Perlakuan Auksin dan Sitokinin

2021 ◽  
Vol 13 (1) ◽  
pp. 28-35
Author(s):  
Agustriani Warpur ◽  
Linus Y. Chrystomo ◽  
Suharno Suharno
Keyword(s):  
Tissue Culture ◽  
Plant Growth ◽  
Combination Treatment ◽  
Growth Regulator ◽  
Plant Growth Regulator ◽  
Leaf Length ◽  
Significant Treatment ◽  
Culture Techniques ◽  
Growth Regulator Treatment

Dendrobium could meet the demands of domestic and foreign consumers from time to time because of their very charming flower blossoms. Orchid flowers are attractive because of the variety their color, size, shape, composition, number of buds the blossom of flowers, especially for the color it is vary greatly. One of the potential Dendrobium Papua orchids is Dendrobium discolor. To fulfill the needs of Dendrobium orchids in pots or in peaces it is depend on the success of Protocorn Like Bodies (PLB) cultivation. The purpose of this study was to determine the growth and development of PLB cultivated in vitro on Vacint & Went (V&W) base media with a combination of different plant growth regulators. The method used wasPLB cultivation with tissue culture techniques in vitro on V&W media with a factorial completely randomized design (CRD). The first factor was auxin treatment (2,4D) with 5 concentrations 1, 2, 3, and 4 ppm plus control (without plant growth regulator treatment), while the second factor was cytokinin treatment with 5 concentrations 1, 2, 3, and 4 ppm plus 1 control (without plant growth regulator treatment). Each treatment repeated 5 times, threfore, there are 125 treatment units in total 125 treatment units. The media used were Vacin and Went (VW). The variables measured were leaf length and the number of leaves per plantlet in each combination treatment of plant growth regulator (PGR) after one month of cultivation. Data were analyzed by using variance (ANOVA) to determine the significance. The results of this study indicated that the combination treatment of auxin and cytokinin PGR in V&W media had a significant effect on the length and number of plantlets leaves and the most significant treatment was the combination of PGR auxin: cytokinin = 0:3 ppm. So it can be concluded that the best medium for PLB culture is a combination of PGR auxin: cytokinin = 0:3 ppm. with an average value of 3.5 cm plantlet leaf length and number of 6 leaves per plantlet. Key words: Protocorn Like Bodies; tissue culture; V&W medium; auxins; cytokinins.

Morphological and anatomical modifications in winter barley culm after late plant growth regulator treatment

1999 ◽  
Vol 11 (1) ◽  
pp. 45-51 ◽  
Author(s):  
Patricia Sanvicente ◽  
Sviatoslav Lazarevitch ◽  
André Blouet ◽  
Armand Guckert
Keyword(s):  
Plant Growth ◽  
Growth Regulator ◽  
Plant Growth Regulator ◽  
Winter Barley ◽  
Growth Regulator Treatment

scholarly journals Perbaikan keragaan bibit jeruk pamelo tanpa biji dengan strangulasi dan aplikasi beberapa dosis dari dua ZPT BAP dan 2,4-D

Kultivasi ◽  
2019 ◽  
Vol 18 (1) ◽  
Author(s):  
Wahyu Fikrinda ◽  
I Made Indra Agastya
Keyword(s):  
Plant Growth ◽  
Leaf Area ◽  
Growth Regulator ◽  
Vegetative Growth ◽  
Plant Growth Regulator ◽  
Block Design ◽  
Canopy Architecture ◽  
Randomized Block Design ◽  
The Wire ◽  
Number Of Branches

Sari Pamelo memiliki prospek yang baik untuk dikembangkan karena buahnya berukuran besar dan memiliki rasa yang segar. Tujuan penelitian ini adalah mempelajari aplikasi strangulasi dan ZPT terbaik dalam merangsang pertumbuhan vegetatif untuk perbaikan keragaan bibit pamelo tanpa biji. Percobaan dilaksanakan pada bulan Maret sampai Juli 2018 di rumah plastik, Laboratorium Agroteknologi, dan Laboratorium Biologi UNITRI, Malang. Rancangan Acak Kelompok (RAK) faktorial dengan dua faktor digunakan pada penelitian ini. Faktor pertama adalah strangulasi ganda dengan jarak antar kawat yang berbeda yaitu 10 cm, dan 15 cm, sedangkan faktor kedua adalah dosis dan jenis zat pengatur tumbuh yang berbeda yaitu tanpa ZPT, BAP 100 ppm, BAP 200 ppm, 2,4-D 100 ppm, dan 2,4-D 400 ppm. Aplikasi strangulasi (pengikatan kawat) dilakukan secara serentak pada bibit pamelo pada April 2018 dan pelepasan kawat dilakukan pada Juni 2018. Berdasarkan analisis ragam yang dilakukan terdapat interaksi antara perlakuan letak strangulasi dengan dosis ZPT pada parameter diameter batang, jumlah tunas, panjang tunas, jumlah daun, luas daun, dan ukuran tajuk pada 1 – 17 minggu setelah perlakuan (MSP). Perlakuan strangulasi ganda 15 cm dan BAP 100 ppm (j2b1) merupakan perlakuan terbaik mampu membentuk tajuk terbuka dengan arsitektur kanopi yang baik sehingga cahaya dapat masuk karena memiliki ukuran tajuk yang paling besar, jumlah daun, luas daun, serta jumlah tunas yang paling banyak dibandingkan dengan perlakuan lainnya sampai 17 MSP. Kata Kunci: arsitektur kanopi, BAP, 2,4-D, pamelo tanpa biji Abstract. Pummelo has prospective to be developed because of its large fruits and fresh taste. The aim of the research was to study the influence of double strangulation and two plant growth regulator to increase vegetative growth and improve performance of Pummelo (Citrus maxima (Brum.) Merr.) seedling. The research was conducted from March to Juli 2018 at plastic house, Laboratory of Agrotechnology, and Laboratory of Biology, Unitri, Malang. Experimental design used completely randomized block design and treatment design was factorial. The first factor was double strangulation with different distance, i.e. 10 cm  and 15 cm, while the second factor was the different dosage and type of growth regulators, i.e. without plant growth regulator, 100 ppm BAP, 200 ppm BAP, 2.4-D 100 ppm, and 2.4-D 200 ppm. Strangulation treatment was conducted on April 8 and wire removed on June 3, 2018. The results showed that there were interaction between the location of strangulation and the dose of plant growth regulator on the parameters diameter of stem, number of branches, length of branches, number of leaves, leaf area, and volume of canopy at 1 - 17 weeks after treatment (WAT). Furthermore, the result showed double strangulation with distance between the wire 15 cm had better significant influence on vegetative growth than double strangulation and the distance between the wire 10 cm. Double strangulation and the distance between the wire 15 cm with BAP 100 ppm treatment was the best treatment on canopy architecture so the light can be used optimally by plant. It was showed by the largest volume of canopy, number of leaf, and leaf area. Besides, the number of branches was the highest if compared to other treatments up to 17 WAT.Keywords: canopy architecture, BAP, 2,4-D, seedless pummelo

Influence of plant growth regulator and rhizobial inoculation on nodulation and soybean nitrogen contant

2007 ◽  
Vol 35 (2) ◽  
pp. 993-996 ◽  
Author(s):  
Sulejman Redžepović ◽  
Sanja Sikora ◽  
Josip Čolo ◽  
Mihaela Blažinkov ◽  
Marija Pecina
Keyword(s):  
Plant Growth ◽  
Growth Regulator ◽  
Plant Growth Regulator ◽  
Rhizobial Inoculation
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