scholarly journals Формування деяких показників структури врожаю пшениці ярої за застосування гербіциду «Лінтур 70 WG, в.г.» і регулятора росту рослин «Емістим С»

2013 ◽  
pp. 37-40
Author(s):  
А. В. Заболотна ◽  
О. І. Заболотний
Keyword(s):  
Plant Growth ◽  
Spring Wheat ◽  
Growth Regulator ◽  
Plant Growth Regulator ◽  
Water Soluble ◽  
Yield Structure

Досліджено формування таких показників струк-тури врожаю пшениці ярої як кількість продуктив-них стебел, продуктивна кущистість, кількість і маса зерен із колоса за внесення гербіциду «Лінтур 70 WG, в.г.» у нормах 120, 150 і 180 г/га як окремо, так і у бакових сумішах із регулятором росту рослин «Емі-стим С». Встановлено, що застосування оптималь-них норм гербіциду сприяє покращанню цих показни-ків, а найвищі їх значення спостерігаються у разі сумісного внесення 120 г/га «Лінтуру 70 WG, в.г.» у баковій суміші з «Емістимом С». Внесення максима-льної норми гербіциду (180 г/га) як окремо, так і у суміші з «Емістимом С» має інгібуючу дію на росли-ни пшениці ярої, що проявляється у зниженні дослі-джуваних показників структури врожаю посівів культури. The formation of such indices of yield structure of spring wheat as the number of productive stems, productive layering, quantity and mass of grains in the ear under the application of herbicide Lintur 70 WG, at the rate of 120, 150 and 180g/ha both separately and in tank mixtures with plant growth regulator Emistim C was researched. It was established that the application of optimal herbicide rate improves these indices and their highest levels were achieved under the application of Lintur 70 WG, water soluble granules, in the tank mixture with Emistim C. The application of maximum herbicide rate (180 g/ha) both separately and in the mixture with Emistim C inhibits the growth of spring wheat plants which results in lower indices of the yield structure of the crop.

scholarly journals Fertilizer and Plant Growth Regulator Strategies for Improving Consumer Performance of Container-grown Petunia

2021 ◽  
pp. 1-11
Author(s):  
Jonathan Ebba ◽  
Ryan W. Dickson ◽  
Paul R. Fisher ◽  
Crysta N. Harris ◽  
Todd Guerdat ◽  
...  
Keyword(s):  
Plant Growth ◽  
Growth Regulator ◽  
Plant Growth Regulator ◽  
Organic Fertilizer ◽  
Value Added ◽  
Dry Weight ◽  
Water Soluble ◽  
High Rate ◽  
Plant Performance ◽  
Phase Point

The overall goal was to evaluate fertilizer options for greenhouse producers, with or without a plant growth regulator (PGR) application, to improve subsequent performance of container-grown annuals. Petunia (Petunia × hybrida) was the model container-grown crop in simulated production and consumer environments. The first experiment at two locations (New Hampshire and Florida) compared strategies using water-soluble fertilizer [WSF (17N–1.8P–14.1K)], controlled-release fertilizers (CRF), and slow-release fertilizers (SRF) that were either applied throughout or at the end of the 8-week production phase [point of shipping (POS)] for petunia rooted cuttings grown in 8-inch azalea containers. In the subsequent simulated “consumer” phase, container plants were irrigated with clear water (no fertilizer) for 6 weeks. Plant performance [number of flowers, SPAD chlorophyll index, dry weight, and tissue nitrogen (N)] at the end of the consumer phase was improved by top-dressing at POS with either CRF or granular organic fertilizer (both at 2.74 g/container N), or preplant incorporation of either a typical CRF at 4.12 g/container N or a CRF with an additional prill coating to delay initial release (DCT) at 2.74 g/container. There was no carry-over benefit from applying a liquid urea-chain product (1.37 or 2.74 g/container N) or top dressing with granular methylene di-urea (2.74 g/container N), or 400 mg·L–1 N (0.2 g/container N) from a liquid organic fertilizer at POS. The consumer benefit of applying 400 mg·L–1 N (0.2 g/container N) from a WSF at POS was increased by supplementing with 235 mg·L–1 magnesium (Mg) and 10 mg·L–1 iron (Fe). A second experiment in 10-inch-diameter pots evaluated the effect on consumer performance from providing 200 or 400 mg·L–1 N of WSF with the PGR paclobutrazol, at the final 1 L/pot irrigation at POS. Application of 3 mg·L–1 paclobutrazol delayed leaf yellowing and reduced plant height, width, and shoot dry weight during the consumer phase, resulting in a more compact growth habit and higher plant quality compared with plants that received no PGR, regardless of WSF treatment. Addition of supplemental 235 mg·L–1 Mg and 10 mg·L–1 Fe to the high rate of WSF and PGR did not improve consumer performance compared with other treatments that included a PGR. Overall, the first experiment demonstrated that the most effective fertilizer strategies require a CRF or SRF that will release nutrients throughout the consumer phase, and that impact of liquid fertilizer options is limited because of lower N supply per container. A single application at POS of a high rate of WSF with supplemental Mg and Fe may have short-term benefits, for example while plants are in a retail environment. Growers should consider combining a residual fertilizer with a PGR application for premium, value-added container annuals.

Laxogenosides Enhance Yield and Quality of Raphanus sativus L. Under Greenhouse Condition

2021 ◽  
Vol 15 (4) ◽  
pp. 542-547
Author(s):  
Jinna Liu ◽  
Zihe Zha ◽  
Xiaoli Liu ◽  
Cunli Zhang
Keyword(s):  
Plant Growth ◽  
Growth Regulator ◽  
Plant Growth Regulator ◽  
Raphanus Sativus ◽  
Water Soluble ◽  
The Other ◽  
Application Time ◽  
Greenhouse Experiments ◽  
Yield And Quality

Laxogenoside-C (LG-C) has BRs-likely activity and with higher activity stability. In this study, the LG-C and SsS (the mixture of Laxogenoside-A, -B, and -C; isolated from the Smilax scobinicaulis C.H. Wright) were used to conduct the seeding treatment and greenhouse experiments with different application time and concentrations, to clarify the effect on yield and quality of radish (Raphanus sativus L.) for development of a new plant growth regulator. The results showed that 10 μM LG-C and SsS increased hypocotyls, elongation and cotyledon weight compared with other treatment. The greenhouse experiments indicated that the interaction effect of plant growth regulator types and application time was significant for all parameters except for phosphorus content. An application of LG-C or SsS produced a higher yield than multiple times. Compared with T0 treatment, LG-C and SsS sprayed at root enlargement (T4) increased yield by 25.33% and 24.10%, respectively. T4 treatment of LG-C produced the highest yield and free amino acid and phosphorus, but the other parameters not. T4 treatment of SsS not only had the highest yield and water-soluble carbohydrates and water-soluble protein but also improved the other radish quality. In conclusion, this study indicated that the application of SsS at root enlargement with 10 μM improved radish root tubers yield and quality.

The Effect of Plant Growth Regulator for Phytoremediation

2012 ◽  
Vol 573-574 ◽  
pp. 1086-1089 ◽  
Author(s):  
Han Zhou Hao ◽  
Yu Hui Shen ◽  
Ru Gang Zhong ◽  
Zheng Yi Fu ◽  
Cheng Wu Liu ◽  
...  
Keyword(s):  
Plant Growth ◽  
Growth Regulator ◽  
Contaminated Soils ◽  
Plant Growth Regulator ◽  
Heavy Metal Stress ◽  
Water Soluble ◽  
Metal Pollutants ◽  
Resistance To Stress

Phytoremediation is the use of vegetation for in situ treatment of contaminated soils, sediments, and water. It is best applied at sites with shallow contamination of metal pollutants. The term “assisted phytoextraction” usually refers to the process of applying a chemical additive to contaminated soil in order to increase the metal uptake by crop plants. In the process of phytoremediation, applying plant growth regulator can promote phytoextraction effects. This paper reviewed the effect of the plant growth regulator for the biological growth, plant transpiration and heavy metal stress. the increase in metal accumulation in upper parts of plant could be related to both the role of PGRs in the enhancement of plant resistance to stress (as toxic metals) and the increase in transpiration rate, i.e. flux of water-soluble soil components and contaminants by the regulation of stomatal opening.

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

Yield increase and higher flesh firmness of 'Arctic Snow' nectarines both at harvest in Australia and after export to Taiwan following pre-harvest application of ReTain Plant Growth Regulator (aminoethoxyvinylglycine, AVG)

2004 ◽  
Vol 44 (3) ◽  
pp. 343 ◽  
Author(s):  
A. C. Rath ◽  
A. J. Prentice
Keyword(s):  
Plant Growth ◽  
Growth Regulator ◽  
Plant Growth Regulator ◽  
Fruit Size ◽  
Yield Increase ◽  
Flesh Firmness ◽  
Ambient Storage ◽  
Class 1 ◽  
Harvest Delay

The effects ReTain Plant Growth Regulator (830 g in 1000 L water/ha) applied to a commercial block of 'Arctic Snow' nectarines 7 days before the first harvest was assessed in relation to harvest delay, fruit size, fruit quality (flesh firmness and brix), as well as the quality of the fruit following export to Taiwan. The untreated block (0.87 ha) and the ReTain-treated block (1.0 ha) were harvested according to the orchard's standard maturation criteria of background colour, size and percent blush colour. Based on picking schedules, the maturation of the ReTain block was delayed by 2.75 days (P<0.05). The fruit continued to grow during this delay and resulted in a 12.3% increase in yield and an increase of 393 packed cartons/ha. There were more (P<0.001) cartons of ReTain-treated fruit packed in grade sizes 69–78 mm diameter and less of smaller size classes (51–66 mm) compared with untreated fruit. The increase in both the number of cartons of class 1 fruit and fruit size on the ReTain block resulted in a Return on Investment (ROI) of 14.7 : 1 with an additional net return of AU$17 655/ha over the untreated block. There was a correlation between fruit size and flesh firmness with larger fruit being firmer than smaller fruit (P<0.001), however, packed ReTain-treated fruit was 3.2 N firmer on average (P<0.001) than packed untreated fruit for all size grades and from all harvests and packs. Brix levels increased (P<0.001) with fruit size but there was no difference (P = 0.568) between ReTain-treated fruit and untreated fruit. Two containers of fruit (early and late picks) were exported to Taiwan. The containers held a temperature of 0.5–2.0°C for the 14–15 day transit time from Australia to Taiwan. ReTain-treated fruit in both containers was 1.7 N firmer (P = 0.022) than untreated fruit upon arrival in Taiwan. After ambient storage (23°C) of fruit from container 1 for 45 h, fruit firmness declined (P<0.001) from an average of 65.7 to 43.2 N and there was no difference (P = 0.826) between treated or untreated fruit. It is concluded that ReTain application to 'Arctic Snow' nectarines can increase financial returns to growers through increased fruit size and quality benefits as well as maintain a higher flesh firmness following export.

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