Agriculture and forestry

Palamarchuk Inna Ivanivna – Candidate of Agricultural Sciences, Associate Professor of the Department of forestry, landscape gardeniing, horticulture and viticulture, Vinnytsia National Agrarian University (21008, Vinnytsia, Soniachna Str.3,e-mail: pal_inna@vsau.vin.ua).

The studied variety and hybrid, as well as sowing dates influenced the duration of interphase periods of table carrot plants. The interphase period "sowing – mass seedlings" was the longest during the sowing period of the third decade 03: in the variety Shantаne KL – 36 days, which is 3 days longer than the control and 12 days – from the sowing period of the third decade 04, in the hybrid Bolivar F1 – 34 days, which is 3 days longer than the control and 12 days longer than the sowing period III decade 04. The period of root formation – technical maturity lasted from 80 to 92 days. It was shorter during the sowing period of the third decade 04: in the variety Shantane KL it is 12 days shorter than the control, in the hybrid Bolivar F1 it is 8 days shorter than the control. The longest this interphase period was in table carrot plants sown during the sowing period of the third decade 03, in the variety Shantane KL – 92 days, in the hybrid Bolivar F1 – 89 days. Plants had the longest vegetation period during the sowing period of the third decade 03: in the cultivar Shantane KL – 126 days, in the hybrid Bolivar F1 – 124 days, which is 4 and 3 days longer than the control variants. The highest yield of table carrots was obtained during the sowing period of the third decade of March: in the variety Shantane KL – 41.4 t / ha, in the hybrid Bolivar F1 – 47.1 t / ha, where the increase relative to controls was 4.9 and 5.2 t / ha, respectively. The significance of this difference was confirmed by the results of analysis of variance. The studied variety and hybrid were characterized by high marketability. In general, the marketability in the experiment was influenced by varietal characteristics, as well as the timing of sowing of carrot seeds. The marketability of table carrots, depending on the variant of the experiment was 77.2 - 88.0%. The highest marketability indicator was characterized by the roots of the Bolivar F1 hybrid during the sowing period of the third decade of March – 88.0%, which is 2.7% higher than the control. According to the results of biometric measurements, the influence of sowing dates on the biometric parameters of table carrot roots was revealed. The main indicator that affects the size of the crop is the weight of the root crop. The highest mass of root crops was recorded in plants sown during the sowing period of the third decade of March: in the variety Shantane KL – 122 g in the hybrid Bolivar F1 – 128 g, which is more than the control variants by 23.7 and 25.5 g, respectively. In terms of root diameter, this indicator was the largest during the sowing period of the third decade of March: in the cultivar Shantane KL – 6.2 cm in the hybrid Bolivar F1 – 6.6 cm, which is 0.4 cm higher than the control variants, respectively. According to average data, the greatest length of root crops was observed during the sowing period of the third decade of March, where the increase relative to control was 0.2 - 0.4 cm, respectively.

1.Bykin A.V., Honchar S.H. (2006). Intensyfikatsiia tekhnolohii vyroshchuvannia morkvy stolovoi [Intensification of table carrot growing technology]. 138-143 [in Ukrainian].

2.Bobos I.M., Zavadska O.V. (2008). Prydatnist sortiv morkvy dlia sushinnia zalezhno vid strokiv sivby v umovakh Lisostepu Ukrainy [Suitability of carrot varieties for drying depending on sowing dates in the Forest-Steppe of Ukraine]. Naukovi dopovidi NAU – Scientific reports of NAU. № 2 (10). 1-8.[in Ukrainian].

3.Metodika doslіdnoї spravi v ovochіvnictvі і bashtannictvі (2001). [Methods of research in vegetable growing and melon growing]. Za redakcієyu G.L. Bondarenka, K. І. YAkovenka. Harkіv.: Osnova. [in Ukrainian].

4.DST Ukrainy 7035: 2009 Morkva svizha. Tekhnichni umovy [Fresh carrots. Specifications]: Vveden. 01.01.2010. K: vyd. ofitsiine, 18 s. [in Ukrainian].

5.Zakharchuk O.V. (2018). Svitovyi rynok ovochiv ta mistse Ukrainy [World vegetable market and place of Ukraine]. Ahrosvit − Agroworld. №3. 3-7. [in Ukrainian].

6.Kutovenko V.B., Mikhalina I.H., Hontar V.T. (2013). Suchasni tekhnolohii vyroshchuvannia ovochevykh kultur [Modern technologies for growing vegetable crops]. navch. posibnyk dlia studentiv napriamu «Ahronomiia» ahrobiolohichnykh spetsialnostei vyshchykh navchalnykh zakladiv osvity III-IV rivniv akredytatsii. Kyiv. [in Ukrainian].

7.Paziuk M.V., Zhuravel I.O., Kyslychenko O.A., Burda N.Ye. (2017). Vyvchennia elementnoho skladu syrovyny morkvy posivnoi sortiv «Iaskrava» ta «Nantska Kharkivska» [Study of the elemental composition of raw carrots sown varieties "Bright" and "Nantes Kharkiv"]. Zbirnyk naukovykh prats spivrobitnykiv NMAPO imeni P.L. Shupyka – Collection of scientific works of NMAPE named after PL Shupika. №28. 93-98 [in Ukrainian].

8.Palamarchuk I.I. (2020). Vplyv strokiv sivby na formuvannia vrozhaiu buriaku stolovoho v pravoberezhnomu Lisostepu Ukrainy [Influence of sowing dates on the formation of table beet harvest in the right-bank Forest-Steppe of Ukraine]. Visnyk umanskoho natsionalnoho universytetu sadivnytstva–Bulletin of Uman National University of Horticulture. №1. 54-58. [in Ukrainian].

9.Palamarchuk I.I. (2019). Dynamika formuvannia ploshchi lystkiv roslyn buriaka stolovoho zalezhno vid sortovykh osoblyvostei ta stroku sivby v umovakh pravoberezhnoho Lisostepu Ukrainy [Dynamics of formation of the area of leaves of table beet plants depending on varietal features and term of sowing in the conditions of the right-bank Forest-steppe of Ukraine]. Silske hospodarstvo ta lisivnytstvo– Agriculture and forestry. №4 (15). 173-182. [in Ukrainian].

10.Palamarchuk I.I. (2019). Efektyvnist vyroshchuvannia patysona (Sucurbita pepo var. Melopepo l.) za riznykh strokiv sivby v umovakh Lisostepu Pravoberezhnoho [The efficiency of growing squash (Sucurbita pepo var. Melopepo l.) At different sowing dates in the Forest-Steppe Right Bank]. Visnyk umanskoho natsionalnoho universytetu sadivnytstva– Bulletin of Uman National University of Horticulture. №1. 25-28. [in Ukrainian].

11.Popovych H.B. (2015). Vplyv strokiv sivby na urozhainist morkvy stolovoi [Influence of sowing dates on the yield of table carrots]. Tavriiskyi naukovyi visnyk – Taurian Scientific Bulletin. №94. 53-58. [in Ukrainian].

12.Aiienehchi Y. (2007). Material of medicine and Medicinal Plants. University of Tehran Press, pp:810. [in English].

13.Ebrahimi M., Hassandokht M. R and Payvast G. H. (2013). Effect of sowing dates on some quantitative and qualitative traits of three landraces of black radish (Raphanus sativus var. niger). Advances in Environ. biuology, 7(1):136. [in English].

14.Shoma1 J.F., Islam M.S., Rahman M.S., Ali L., Islam M.R., and Rahman M.H. (2014). Performance of carrot (Daucus carota L.) Genotypes under Different sowing dates. Eco-friendly Agril. 7(11): 148-150. [in English].

15.Sarmadnia G, and Koocheki A. (1990). Physiology of Crop Plants. Mashhad University Press. Pp.467. [in English].