Influence of Growing Medium on the Parameters and Yield Capacity of the Mini Tuber Potato of the Charoite Variety

Abstract

The creation of original seed grains of the Charoite variety, healed of pathogenic infections of various etiologies, was carried out through reproduction of the certified meristematic material of the microplants class. Mini tubers microplants were grown in 5.5 liter vessels on a “Agrobalt S” soil (control) mixed with peat and supplemented with 10% and 20% (of the volume) of the “ORVI” substrate. The use of the substrate “ORVI” mixed with peat and “Agrobalt S” soil positively influenced the growth, development and formation of tubers. The appliance of 10% of the “ORVI” substrate significantly increased the quantitative yield of mini tubers by 17% and the weight of tubers by 12.3%. The increase in the total number of mini tubers was due to the increase in tuber fraction from 10 to 30 mm. The appliance of a 20% “ORVI” substrate also led to an increase in the total number and mass of mini tubers. According to the EIA results, the mini tubers grown from microplants did not contain any latent viral infection. Tests on the seeds did not reveal symptoms of fungal diseases.
 Keywords: breed, potatoes, mini tubers, mass of tubers, peat fertilizer, substrate

The Influence of Biochar and Substrates Application on the Parameters and Yield of Mini-Tubers of the Charoit Potato Variety

“…Determination of the fractional composition and sowing quality indicators of mini-tubers was carried out using the current standards [1,11,14,29]. The data on the yield and its constituent elements were processed statistically using ANOVA.…”

“…The Charoite variety has been included in the State Register of Breeding Achievements of the Russian Federation since 2014 in seven regions of admission [29]. The variety is resistant to potato cancer (pathotype 1), common scab, rhizoctonia, ultra-early maturing.…”

“…To increase the volume of the original seed potatoes of the Charoite variety, different methods of propagation of the initial material were used: through clone nurseries in the field and through vessels in protected ground. It was revealed that one plant of this variety forms 10 tubers of the standard seed fraction on average in the field, and in containers of 5 liters, from 4 to 5 pieces when using the peat substrate "Agrobalt-S" [29].…”