@conference{
author = "Poštić, Dobrivoj and Stanisavljević, Rade and Štrbanović, Ratibor",
year = "2021",
abstract = "The aim of this study was to determine the influence of mechanized planting on the early yield of
different varieties of potatoes in the organic system of production in the conditions of Western
Serbia. The early yield of different potato variety were studied during the year 2017 and 2018 in
location Western Serbia in village Lipnjički Šor (at altitude 109 m a.s.l., clay loam) 44˚ 61' N, 19˚
24' E. The objects of research were four varieties of potatoes: two early (Carrera and Bellarosa) and
two middle late (Agria and Desiree). The field experiment was set up as a three-factorial method
split plot, with four replications. Size of the experimental field was 1.6 ha, which is divided into
four subplot size of 0.4 ha. Each subplot divided into two equal halves of 0.2 ha: in the first half
mechanized planting was performed (A) and the second half with manual planting (M). Planting
dates were 15 and 4 April, respectively, in 2017 and 2018. Plots were harvested on June 30 in both
years. After the harvest the number of tubers per plant, mean tuber weight and early potato yield
were precisely determined. Analysis of the productive characteristics early potato yield in
organic system production showed highly significant (р<0.01) differences under influenced
genotype (factor G). Significance influence (р<0.01) years (factor Y) were detected on number
tubers per plant and mean tuber weight. Planting method (factor P) significantly affected on all
traits (р<0.05) or (р<0.01). Influence all interactions of studied factors (Y × G, Y × P, G × P and Y
× G × P) for examined traits were not determined. At all varieties, in 2018, a higher number of
tubers per plant were recorded, compared to 2017 (Table 4). The highest number of tubers per plant
in the two-year average was produced by Agria (7.33), followed by Carrera (6.80), and the lowest
by Bellarosa (5.52), due to ability formation of a small number of large tubers. The largest tuber
was produced by Bellarosa (78.30 g), followed by Carrera (62.85 g), and the lowest by Desiree
(44.0 g), due to ability formation of larger number of tubers per plant. The highest early potato yield
was determined also in the Bellarosa (20.80 t ha־¹(, followed by Carrera (20.09 t ha־¹(, while the
lowest (14.10 t ha־¹ (in Desiree. The highest early potato yields was found in all varieties on the
variant with mechanized planting in both years of research, compared to the early potato yield
recorded on the variant with manual planting. On the basis correlation analysis and gained
correlation coefficients very high (r = 0.81834, p<0.001) dependences are noticed between mean
tuber weight and early potato yield. Based on early potato yields of all four genotypes observed in
different year, to achieve higher yields of young potatoes in Western Serbia we recommend
growing early maturity varieties (Bellarosa and Carrera) with the application of mechanized
planting.",
publisher = "Nacionalno društvo za procesnu tehniku i energetiku u poljoprivredi, Novi Sad",
journal = "Seventh international Conference INOPTEP 2021, Sustainable postharvest and food technologies, April 18th – 23th, 2021, Vršac, Serbia",
title = "The effect of mechanized planting on early potato yield in organic system production",
pages = "103"
}
