Influence of plant density on the growth and productivity of an indeterminate tomato hybrid
DOI:
https://doi.org/10.31548/dopovidi2020.05.005Keywords:
tomato, protected ground, film greenhouses, plant density, hybrid, yieldAbstract
Abstract. One of the main factors in obtaining consistently high tomato yields is to optimize the plant nutrition area. Determination of the optimal plant density, on the one hand, prevents oppression of plants at increased density. On the other hand, to avoid unnecessary expenses from the irrational use of the cultivated area. Vegetables are one of the main suppliers of biologically active substances necessary for a good human nutrition. They give the body a lot of vitamins, fiber, hemicelluloses, pectin substances, organic acids, various carbohydrates, mineral salts and a number of other biochemical compounds. Tomato is one of the main protected ground crops for Ukraine. Compared to other crops, tomatoes give early and stable yields. The issue of planting density of tomatoes is still not fully resolved, these elements of technology are not adapted to the soil and climatic conditions of the eastern part of the Left-Bank Forest-Steppe of Ukraine.
The objective of our research was to determine the optimal crop density of hybrid tomato of indeterminate type in order to obtain the highest yield without reducing the quality of the product.
The method of research. The research was carried out during 2018-2019. In film greenhouses, spring-summer crop rotation. The experiments were carried out with an indeterminate tomato hybrid: Tobolsk F1. Producers of seeds of indeterminate hybrids recommend different plant densities for growing conditions in film greenhouses 2.5-3.5 pcs/m2. Therefore, our research was planned to determine the optimal plant density of the indeterminate tomato hybrid Tobolsk F1 for film greenhouses. The total number of plants is 312 pcs. Sowing of seeds was carried out in the third decade of February. The seeds were sown into cassettes, and the seedlings were dived into pots (volume - 500 cm3) on time. Seedlings were grown using bottom irrigation and, at the age of 3-5 true leaves, the seedlings were planted on a test plot in a film greenhouse without heating.
Research results. An analysis of phenological observations of plants showed that a change in the density of plants had practically no effect on the timing and rate of passage of the stages of organogenesis in plants, that is, in all variants of the experiment, the phases of development in plants began simultaneously. Indicators of plant parameters indicate that the data obtained both in the phase of mass flowering and mass fruiting of tomatoes differ among themselves. The difference in biometric parameters can be traced depending on the density of plants. Comparing the main biometric indicators, it can be noted that in the flowering phase, the height of plants ranged from 111.0 to 134.9 cm, in the fruiting phase - from 257.0 to 275.8 cm, while the plants differed in height by the density of 4.0 pcs/m2. The vegetative mass of a plant in the flowering phase was from 1884 g with a plant density of 2.5 pcs/m2 to 1144 g with a density of 4.0 pcs/m2. In the phase of flowering fruiting, the weight of the plant ranged from 1704 g to 1574 g, also decreasing with increasing density. In the flowering phase, an increase in the value of the leaf area indicator was observed to 5.8% with an increase in plant density, and in the fruiting phase, a slight decrease in the indicator to -1.8% was observed with an increase in plant density. So, according to biometric indicators, plants develop better with a density of 3.5 pcs/m2: tomato plants have the best indicators of vegetative mass and plant height, the leaf surface area varies within insignificant limits. The size of the fruits and the yield of standard tomato production are in direct proportion to the density of plants, that is, the more of them per unit area, the lower these indicators. In general, the increase in the density of tomato plants significantly affected the yield.
Conclusions. Two-year researches have established that with an increase in plant density, in terms of leaf area in tomato plants of the Tobolsk F1 hybrid, on average, there was a slight fluctuation in the indicator at the level of 0.9-1.1%. The indicator of the vegetative mass of the plant ranged from -4.1 to +1.8% as compared to the control, also decreasing with increasing density. The indicator of plant height both in the flowering phase and in the fruiting phase, on the contrary, grew with an increase in plant density and ranged from -4.0 to + 7.1% compared to the control, while the plants differed in height by a density of 4.0 pcs/m2. In general, the studies carried out give grounds to conclude that in a spring film greenhouse, according to biometric indicators, on average, plants develop better with a density of 3.5 pcs/m2: tomato plants have the best ratio of vegetative mass, plant height and leaf area. The maximum yield of tomato hybrid Tobolsk F1 at the level of 15.8 kg/m2 in the eastern part of the Left-Bank Forest-Steppe of Ukraine was obtained with a plant density of 3.5 pcs/m2.
References
Barabash O.Yu., Semenchuk P.S., Vizelman A.I. (1974). Ovochivnytstvo Prykarpattia. [Vegetable growing in Prykarpattia]. Lviv.: Kameniar, 116.
Beksieiev Sh.H. (1989) Vyroshchuvannia rannikh tomativ. - 2-e vyd., pererob. i dop. [Growing early tomatoes. - 2nd ed., Reworked. and ext.]. L.: Ahropromizdat. Leninhr. vidd-nia, 272.
Hurin M.V. (2012). Stvorennia novykh vysokopektynovykh linii tomatu. [Creation of new high-pectin tomato lines]. Henetychni resursy roslyn. №10, 147-159.
Zhuk O.Ya., Syvoraksha O.A., Fedosii I.O. (2014). Pomidor: biolohiia ta nasinnytstvo: monohrafiia. [Tomato: biology and seed production: monograph]. Vinnytsia: TOV «Nilan-LTD», 160.
Kravchenko V.A. Prylipko O.V. (2007). Pomidor: selektsiia, nasinnytstvo, tekhnolohii. [Tomato: selection, seed production, technologies]. K.: Ahrar. nauka, 424.
Metodyka doslidnoi spravy v ovochivnytstvi i bashtannytstvi (2001). [Methods of research in vegetable growing and melon growing]. / Za red. H.L. Bondarenka, K.I. Yakovenka. Kharkiv: Osnova, 369.
Pastukhov V.I. (2011). Perspektyvy rozvytku promyslovoho vyrobnytstva ovochiv v Kharkivskomu rehioni. [Prospects for the development of industrial vegetable production in the Kharkiv region]. Visnyk Kharkivskoho natsionalnoho tekhnichnoho universytetu silskoho hospodarstva im. Petra Vasylenka. Vypusk 124, t.1 Kharkiv, 308-313.
Putsenko D.V. (2008). Vplyv sposobiv polyvu, dobryv ta zahushchennia roslyn na vrozhai i yakist plodiv posivnykh tomativ: [Influence of methods of watering, fertilizers and thickening of plants on yield and quality of fruits of sowing tomatoes]. avtoref. dys. na zdobuttia nauk. stupenia kand. s.-g. nauk:spets. 06.01.02. Kherson, 18.
Sievidova I.O. (2013) Vplyv yakosti ovochevoi produktsii na konkurentospromozhnist ovochivnytstva. [The impact of vegetable quality on the competitiveness of vegetable growing]. Visnyk Lvivskoho natsionalnoho ahrarnoho universytetu. Ser : Ekonomika APK. № 20(1), 302-306.
Kharchuvannia liudyny i suchasne dovkillia: teoriia i praktyka (2002) [Human nutrition and the modern environment: theory and practice] / M.I. Peresichnyi, M.F. Kravchenko, V.N. Korzun, O.M. Hryhorenko. K. : KNTEU, 526.
Belhoroev Ja. (2000) K. Ovoshhevodstvo zashhishhennogo grunta. [Protected ground vegetable growing]. M. : ANO redakcii zhurnala "Agrarnaja nauka", 94.
Gadzhieva A.M. i dr. (2014) Ispol'zovanie innovacionnyh tehnologij kompleksnoj pererabotki tomatnogo syr'ja. [Use of innovative technologies for complex processing of tomato raw materials]. Scientific Journal of KubSAU. №5. URL: https://ntk.kubstu.ru/data/mc/0006/0221.pdf (data zvernennja: 01.09.2020).
Grigorov M., Shmakova L. (2009). Tomaty v zashhishhennom grunte. [Tomatoes in protected ground]. Ovoshhevodstvo i teplichnoe hozjajstvo. №5, 10-14.
Dospehov B.A. (1985). Metodika polevogo opyta (s osnovami statisticheskoj obrabotki rezul'tatov issledovanij). [Field experiment technique (with the basics of statistical processing of research results)]. 5 izd., pererab. i dop. M.: Agropromizdat, 351.
Knysh V., Naumov V. (2017). Promyshlennaja tehnologija vyrashhivanija tomata na kapel'nom oroshenii. [Industrial technology for growing tomato on drip irrigation]. Ovoshhevodstvo. № 2, 26-30.
Kovach T. (2017). Tomaty novogo pokolenija. [New generation tomatoes]. Ovoshhevodstvo. № 4. 44-46.
Ovoshhevodstvo. Novye podhody - real'naja pribyl'. Prakticheskoe posobie. (2012). [Vegetable growing. New approaches are real profits. A practical guide]. / Ju.I. Sologub, I.M. Streljuk, A.S. Maksimjuk. K.: OOO «Poligraf pljus», 200.
Paponov A.N., Zaharchenko E.P. (2000). Vse ob ovoshhah. [All about vegetables]. M. : Ripoll-Klassik, , 404.
Periodicheskij al'manah. Vmeste s Bejo. [Periodic almanac. Together with Bejo]. (2017). №7, 48. URL: https://www.bejo.com/sites/default/files/ wysiwyg-images/almanac07_2016-2017.pdf (data zvernennja: 01.09.2020).
Sevidova I.A. (2018). Tendencii razvitija promyshlennogo ovoshhevodstva v agrarnyh predprijatijah. [Development trends in industrial vegetable growing in agricultural enterprises]. Efektivna ekonomіka. №1. URL: http://www.economy.nayka.com.ua/?op=1&z=6057 (data zvernennja: 01.09.2020).
Tarakanov G.I., Muhin V.D. i dr. (1993). [Vegetable growing]. Ovoshhevodstvo. M.: Kolos, 177.
Jansen J. (1994). Geschmack von Tomaten. Gernuse n.4, 253-255.
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