Features of growth of sorghum [Sorghum bicolor (L.) Moench] plants depending on the width of rows and seeding rate in the conditions of the Right-Bank Forest-Steppe of Ukraine





varieties, vegetation period, field germination of seeds, biometric indicators


Purpose. To establish the optimal row spacing and so­wing rate of sorghum seeds of grain varieties ‘Dniprovskyi 39’ and ‘Vinets’, to substantiate their influence on the growing season and biometric parameters of plants in the Right-Bank Forest-Steppe of Ukraine.

Methods. Field, laboratory, mathematical and statistical.

Results. The most intensive growth and development of sorghum plants was observed when sowing seeds with a row spacing of 45 cm and a seeding rate of 200 thousand pieces/ha. In particular, the duration of the growing season under such conditions was the smallest: 108 days for the ‘Dniprovskyi 39’ variety and 106 days for the ‘Vinets’ variety. At the same time, the indicators of field seeds germination, plant height and stem diameter were maximum in the experiment: ‘Dniprovskyi 39’ – 88.7%, 137.3 cm and 1.7 cm, ‘Vinets’ – 86.9%, 121.8 cm and 1.6 cm, respectively. It was found that an increase in seeding rate reduced indicators of productive tillering, leaf area and weight per plant. The most intense tillering of sorghum plants was observed at a seeding rate of 150 and 200 thousand pieces/ha for all the studied variants of the row spacing: on average, up to two panicles well filled with grain per plant, depending on the varietal characte­ristics. At the rate of 250 thousand pieces/ha, tillering of plants in both varieties was somewhat weaker – 1.0–1.1 panicles per plant. The largest indicators of leaf surface area and weight of one plant were with a row spacing of 45 cm: 1528–2320 cm2 and 169.2–185.6 g in the variety ‘Dniprovskyi 39’ and 1476–2180 cm2 and 143.1–162.3 g in the variety ‘Vinets’ depending on planting density. Reduction of row spacing up to 15 cm and its increase up to 70 cm led to a decrease in the main parameters of plant growth and development.

Conclusions. Sorghum plants developed better when sown with a row spacing of 45 cm and a seeding rate of 200 thousand pieces/ha, which were recommended for growing crops in the conditions of the Right-Bank Forest-Steppe of Ukraine.


Sarshad, A., Talei, D., Torabi, M., Rafiei, F., & Nejatkhah, P. (2021). Morphological and biochemical responses of Sorghum bicolor (L.) Moench under drought stress. SN Appl. Sci., 3(1). doi: 10.1007/s42452-020-03977-4

Getachew, G., Putnam, D., De Ben, C., & De Peters, E. (2016). Potential of Sorghum as an Alternative to Corn Forage. Am. J. Plant Sci., 7(7), 106–121. doi: 10.4236/ajps.2016.77106

Somegowda, V. K., Vemula, A., Naravula, J., Prasad, G., Rayaprolu, L., Rathore, A., Blümmel, M., & Deshpande, S. (2021). Eva­luation of fodder yield and fodder quality in sorghum and its interaction with grain yield under different water availability regimes. Cur. Plant Biol., 25, 100191. doi: 10.1016/j.cpb.2020.100191

Schittenhelm, S., & Schroetter, S. (2014). Comparison of Drought Tolerance of Maize, Sweet Sorghum and Sorghum-Sudangrass Hybrids. J. Agron. Crop Sci., 200(1), 46–53. doi: 10.1111/jac.12039

Schlegel, A. J., Assefa, Y., Haag, L. A., Thompson, C. R., & Stone, L. R. (2018). Long-Term Tillage on Yield and Water Use of Grain Sorghum and Winter Wheat. Agron. J., 110(1), 269–280. doi: 10.2134/agronj2017.02.0104

Valluru, R., Gazave, E. E., Fernandes, S. B., Ferguson, J., Lozano, R., Hirannaiah, P., … Bandillo, N. (2019). Deleterious mutation burden and its association with complex traits in sorghum (Sorghum bicolor). Genetics, 211(3), 1075–1087. doi: 10.1534/genetics.118.301742

Kumar, A. A., Anuradha, K., Ramaiah, B., Grando, S., Frederick, H., Rattunde, W., Virk, P., & Pfeiffer, W. H. (2015). Recent Advances in Sorghum Biofortification Research. In Plant Bree­ding Reviews (Vol. 39, pp. 89–124). John Wiley & Sons. doi: 10.1002/9781119107743.ch03

Kothari, K., Ale, S., Bordovsky, J. P., Thorp, K. R., Porter, D. O., & Munster, C. L. (2019). Simulation of efficient irrigation mana­gement strategies for grain sorghum production over diffe­rent climate variability classes. Agricult. Syst., 170, 49–62. doi: 10.1016/j.agsy.2018.12.011

Marchini, M., Marti, A., Folli, C., Prandi, B., Ganino, T., Conte, P., … Carini, E. (2021). Sprouting of Sorghum (Sorghum bicolor [L.] Moench): Effect of Drying Treatment on Protein and Starch Features. Foods, 10(2), 407. doi: 10.3390/foods10020407

Karazhbei, H. M., & Tehun, S. V. (2012). Productivity of Sorghum bicolor L. depending on the level of mineral nutrition and standing density. Nauk. pracì Ìnst. bìoenerg. kulʹt. cukrov. burâkìv [Scientific papers of the Institute of Bioenergy Crops and Sugar Beet], 14, 67–70. [in Ukrainian]

Matei, Gh. (2016). Study on yield features of sweet sorghum hybrids grown in South West of Romania. SGEM 2016 Conferen­ce Proceedings, 6(1), 783–790.

Fernande, C., Fromme, D., & Grichar, J. (2012). Grain sorghum response to row spacing and plant populations in the Texas Coastal Bend Region. Int. J. Agron., 2012, 238634. doi: 10.1155/2012/238634

Krylov, A. V., & Filatov, V. I. (2002). Productivity and main indicators of photosynthetic activity of grain sorghum depen­ding on the sowing rate. Kukuruza i sorgo [Corn and Sorghum], 3, 21–24. [in Russian]

Boiko, M. O. (2016). Substantiation of agrotechnical methods of grain sorghum cultivation in the conditions of the South of Ukraine. Naukovij vìsnik NUBIP Ukraïni. Serìâ Agronomìâ [Scientific Herald of NULES of Ukraine. Series: Agronomy], 235, 33–39. [in Ukrainian]

Makarov, L. Kh., & Skoryi, M. V. (2009). Soriz (tekhnolohiia, selektsiia, nasinnytstvo, pererobka) [Soriz (technology, selection, seed processing)]. Kherson: Ailant. [in Ukrainian]

Ovsiienko, I. A. (2015). Formation of sorghum grain productivity depending on agrotechnical measures. Kormi ì kormovirobnictvo [Feeds and Feed Production], 81, 146–151. [in Ukrainian]

Kalenska, S. M., & Naidenko, V. M. (2018). Yield of grain sorghum depending on the width between rows and fertilizer system. Nauk. pracì Ìnst. bìoenerg. kulʹt. cukrov. burâkìv [Scientific Papers of the Institute of Bioenergy Crops and Sugar Beet], 26, 67–75. doi: 10.47414/np.26.2018.211203 [in Ukrainian]

Svyrydova, L. A., & Rozhkov, A. O. (2017). Estimation of grain sorghum crops development according to phenological observations. Vìsnik Poltavsʹkoï deržavnoï agrarnoï akademìï [Bulletin of Poltava State Agrarian Academy], 4, 18–23. [in Ukrainian]

Yeshchenko, V. O., Kopytko, P. H., Opryshko, V. P., & Kostohryz, P. V. (2014). Osnovy naukovykh doslidzhen v ahronomii [Fundamentals of scientific research in agronomy]. Vinnytsia: Edelveis i K. [in Ukrainian]

Rozhkov, A. O., Puzik, V. K., Kalenska, S. M., Puzik, L. M., Po­pov, S. I., Muzafarov, N. M., Bukhalo, V. Ya., & Kryshtop, Ye. A. (2016). Doslidna sprava v ahronomii. Knyha 1: Teoretychni aspekty doslidnoi spravy [Experimenting in agronomy. Book 1. Theoretical aspects of experimenting]. Kharkiv: Maidan. [in Ukrainian]

Institute of Grain Crops of NAAS of Ukraine. (2017). Kataloh sortiv ta hibrydiv laboratorii selektsii sorhovykh kultur [Catalog of varieties and hybrids of the laboratory for selection of sorghum crops]. Dnipro: N.p. [in Ukrainian]

Boiko, M. O. (2017). Formation of the assimilation apparatus of grain sorghum hybrids depending on sowing dates and crop density. Tavrìjsʹkij naukovij vìsnik [Tavria Scientific Bulletin], 97, 18–22. [in Ukrainian]

Shepel, N. A. (1989). Sorgo – intensivnaya kul’tura [Sorghum is an intensive crop]. Simferopol: Tavriya. [in Russian]

Pravdyva, L. A. (2020). Photosynthetic efficiency of crops of grain sorghum in fallow according to the method of gro­wing sorghum. Zbìrnik naukovih prac Umansʹkogo nacìonalʹnogo unìversitetu sadìvnictva [Collection of Scientific Papers of Uman National University of Horticulture], 97, 61–71. doi: 10.31395/2415-8240-2020-97-1-61-71



How to Cite

Pravdyva, L. A. (2021). Features of growth of sorghum [Sorghum bicolor (L.) Moench] plants depending on the width of rows and seeding rate in the conditions of the Right-Bank Forest-Steppe of Ukraine. Plant Varieties Studying and Protection, 17(2), 139–145. https://doi.org/10.21498/2518-1017.17.2.2021.236521