Influence of Time and Method of Application on Turkey Oak Response to Picloram + 2,4-D

Naturally-established turkey oak (Quercus laevis Walt.) shoots were treated with aqueous solutions of the product picloram + 2,4-D (4-amino-3,5,6-trichloropicolinic acid + 2,4-dichlorophenoxyacetic acid) and with picloram pellets. Various application methods were utilized at several dates during the year. Responses measured 14 and 17 months after initial treatments were percent control of original shoots, percent regrowth, plant height, and live stems/plant. Leaf-stem-basal treatments provided the highest degree of control of any method studied, averaging 87% total shoot control over five treatments dates. Foliar, mist-blower, and leaf-stem applications showed no differences, averaging 75%, 79%, and 78% control, respectively. Basal applications gave poorest results averaging only 12% control over five dates. No differences were observed among treatment dates for applications made during the growing season after the full-leaf stage, but treatments made before full-leaf provided less control than others. Soil applications of picloram pellets were more effective when applied during the early spring and summer than during fall or winter but were less effective than treatments applied to foliage at all dates.

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Reversion of Senescence: Effects of 2,4-Dichlorophenoxyacetic Acid and Indoleacetic Acid on Respiration, Ethylene Production, and Ripening of Banana Fruit Slices

Australian Journal of Biological Sciences ◽

10.1071/bi9690601 ◽

1969 ◽

Vol 22 (3) ◽

pp. 601 ◽

Cited By ~ 41

Author(s):

M Vendrell

Keyword(s):

Aqueous Solutions ◽

Ethylene Production ◽

Indoleacetic Acid ◽

Dichlorophenoxyacetic Acid ◽

Banana Fruit ◽

Unripe Fruit ◽

2,4 Dichlorophenoxyacetic Acid

Slices cut from green, unripe fruit were treated by infiltration with aqueous solutions of 2,4�dichlorophenoxyacetic acid (2,4�D) and indoleacetic acid (lAA). 2,4.D delayed but increased the size of those peaks in respiration and ethylene production which are induced by cutting; ripening was also delayed. These effects were proportional to concentrations of 2,4.D in the range 1O-LlO-3M. Higher concentrations caused injury.

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Enhanced adsorption of carbon nanocomposites exhausted with 2,4-dichlorophenoxyacetic acid after regeneration by thermal oxidation and microwave irradiation

Environmental Science Nano ◽

10.1039/c3en00093a ◽

2014 ◽

Vol 1 (2) ◽

pp. 113-116 ◽

Cited By ~ 11

Author(s):

Anthony B. Dichiara ◽

Jordan Benton-Smith ◽

Reginald E. Rogers

Keyword(s):

Carbon Nanotubes ◽

Microwave Irradiation ◽

Aqueous Solutions ◽

Thermal Oxidation ◽

Single Walled Carbon Nanotubes ◽

Dichlorophenoxyacetic Acid ◽

Carbon Nanocomposites ◽

Enhanced Adsorption ◽

2,4 Dichlorophenoxyacetic Acid ◽

Walled Carbon Nanotubes

The ability of raw and recycled graphene nanoplatelets–single-walled carbon nanotubes hybrid papers for 2,4-dichlorophenoxyacetic acid adsorption from aqueous solutions was evaluated.

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Performance of Sesame (Sesamum indicum L.) as Influenced by 2,4 – Dichlorophenoxyacetic Acid and NPK Fertilizer

Cercetari Agronomice in Moldova ◽

10.2478/cerce-2018-0036 ◽

2018 ◽

Vol 51 (4) ◽

pp. 60-72

Author(s):

E.K. Eifediyi ◽

F.O. Ogedegbe ◽

N.B. Izuogu ◽

C.A. Adedokun ◽

A. Katibi ◽

...

Keyword(s):

Plant Growth ◽

Plant Height ◽

Growth Regulator ◽

Plant Growth Regulator ◽

Growth And Yield ◽

Dichlorophenoxyacetic Acid ◽

Significant Difference ◽

Npk Fertilizer ◽

2,4 Dichlorophenoxyacetic Acid ◽

Savannah Zone

Abstract The Guinea savannah zone of Nigeria is beset by increasing population and infrastructural development, thereby putting pressure on available land with rapidly declining fertility due to low organic matter content, soil erosion, high temperature and seasonal bush burning. Sesame is cultivated in this zone and the yield has remained very low, compared to yield in other parts of the world. This could be attributed to poor nutrient status and poor cultural practices used by peasant farmers. A field experiment was conducted at the Teaching and Research Farm, University of Ilorin, Nigeria, in a southern Guinea savannah zone in 2015 and repeated in 2016 cropping season to determine the effects of 2,4-Dichlorophenoxyacetic acid (2,4-D), a plant growth regulator and NPK fertilizer on the growth and yield of sesame. The experiment was laid out as a factorial arrangement, fitted into a randomized complete block design replicated thrice. The factors imposed were 2,4-D (0, 5 and 10 ppm ha−1) and NPK 15:15:15 (0, 100, 200 and 300 kg ha−1). Data were collected on vegetative traits (plant height, number of leaves, leaf area) and yield components (number of capsules per plant; yield per plant and per hectare). The data were subjected to analysis of variance (ANOVA) using the Genstat statistical package 17th edition and significant means were separated by using the least significant difference at 5% level of probability. The result revealed that using plant growth regulator and NPK fertilizer had significant effects (p<0.05) on plant height (151 cm) and yield per hectare (530 kg/ha). The qualitative and quantitative analysis of the seeds further reaffirmed the presence of bioactive compounds, such as saponins, tannins, flavonoids and phenolic compounds, which are important health promoting food in the seeds.

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