Вплив обробки насіння ячменю ярого хімічними засобами на розвиток кореневих гнилей

І. Д. Гентош, М. М. Кирик, Д. Т. Гентош

Анотація


INFLUENCE SEED TREATMENT CHEMICALS AT DEVELOPMENT OF ROOT ROT SPRING BARLEY

I. Gentosh, M. Kyryk, D. Gentosh

 

 

The effect of different rates of chemicals on the development of plants of spring barley, protect them from diseases and productivity. Found that the use of drugs provides protection of plants against root rot. Biological effectiveness of these drugs in the treatment of seeds of spring barley is at the level of the reference version.

Duringthe 2015-2016 bienniuminphytostation VP NUBiPUkraine "AgronomicResearchStation" wetestedthefollowingdrugs: Rancogneinanamountof 1.3; 1.5 l / t inseeds,HrinfortStar - 1.5; 2.0 l / t,HrinfortDock - 0.4; 0.5; l / t. Intheembodiment, thecontrolseedsarenottreated.As a standardusedVitavaks 200 FF rateof 2.5 l / t.

All drugs have a positive effect on vigor and germination of seeds. The highest results were recorded in variants using Rancogne 1.3 l / t; Rancogne 1.5 l / t and Hrinfort Dock 0.5 l / t.

Sowing spring barley treated seeds allowed to reduce the intensity of root rot. Affected plants in embodiments where the seeds were treated with the above drugs were less compared to the control.The greatest fungicidal effectiveness shown seed disinfectants Rancogne consumption rate of 1.3 l / t; Rancogne 1.5 l / t and Hrinfort Dock 0.5 l / t.Thus, in sprouts number of affected plants and disease progression in these variants ranged from 2.5% to 10.0% and from 0.625 to 1.25% in the tillering stage - from 10.0% to 12.5% and from 2.25 to 2.75%, in the phase of milky-wax ripeness - 12,5-20.0% and 6,25-6,75%.Incontrolvariantspreadanddevelopmentofthe diseaserespectivelywere:insprouts - 22.5% and 7.5%, tillering - 30.0% and 10.13%, milk-waxripeness - 50.0% and 14.75%.

Also the use of chemicals contributed to increasing plant productivity of spring barley.Thus, in embodiments using Rancogne 1.3 l / t; Rancogne 1.5 l / t and Hrinfort Dock 0.5 l / t productivity of spring barley plants were higher compared to the control variant.For example, the number of seeds per plant was greater than 2.88, respectively; 4.15; and 4.45 pc. compared with controls (27.85 pcs.).

Thus, the use Rancogne 1.3 l / t; Rancogne 1.5 l / t and Hrinfort Dock 0.5 l / t reduced the intensity of root rot throughout the growing season and contributed to increasing productivity by 0.63 - 0.67 t / ha.


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