Affiliation:
1. Federal Scientific Center for Bast Fiber Crops
2. Penza State Agrarian University
Abstract
The development of science-based technologies of cultivation makes it possible to reveal the productive potential of new varieties of perennial grasses. In 2021-2022 in the conditions of the Penza region, there were studied the seeding rates and methods of sowing of a new variety of awnless brome Udalets when cultivated for seed. According to the hydrothermalcoefficient, the growing season of 2021 was characterized as dry (HTC = 0.8), 2022 – as normal in terms of moisture supply (HTC = 1.0). The best indicators of the development of brome plants (mass of plants and roots) by the end of the first year of life were obtained using a wide-row sowing method with row spacing of 30 cm at a seeding rate of 5.0 million viable seeds per 1 ha. In terms of the yield of green mass and the collection of dry matter from 1 m2 in the first year of life, the wide-row sowing method with a row spacing of 30 cm had an advantage. During the year of awnless brome grass use the best indicators of seed yield were obtained by wide-row sowing method with row spacing of 30 cm at a seeding rate of 5.0 million viable seeds per 1 ha. At the same time, the number of productive stems was 106 pcs/m2, the length of the inflorescence was 19.0 cm, the number of spikelets in the inflorescence was 182 pcs., the weight of seeds from a productive shoot was 0.78 g, the weight of 1000 seeds was 4.26 g, which was 8.2; 8.0; 11.0; 13.0; 0.9 %, respectively, higher than the control variant with a row sowing method with row spacing of 15 cm at a seeding rate of 6.0 million viable seeds per 1 ha. The highest seed yield of awnless brome in the first year of use was formed with a wide-row sowing method with row spacing of 30 cm at a seeding rate of 5.0 million viable seeds per 1 ha (824 kg/ha), the increase over the control was 146 kg/ha, or 21.5 %. By a row method of sowing with row spacing of 15 cm, a high yield was obtained in the control variant (6 million viable seeds/ha) – 678 kg/ha. With a seeding rate of 5.0 million germinating seeds per 1 ha, the seed yield decreased by 7.6 %.
Publisher
FARC of the North-East named N.V. Rudnitskogo
Reference17 articles.
1. Akimenko A. S. Formation of crop rotations and structure of sown areas for obtaining the given quantity of product taking into account natural resource potential. Zemledelie. 2020;(4):19-21. (In Russ.). doi: 10.24411/0044-3913-2020-10405
2. Kosolapov V. M., Pilipko S. V., Kostenko S. I. New varieties of fodder crops is the guarantee of successful development of fodder production. Dostizheniya nauki i tekhniki APK = Achievements of Science and Technology of AICis. 2015;29(4):35-37. (In Russ.). URL: https://elibrary.ru/item.asp?id=23374009
3. Ivanov I. S., Zolotarev V. N., Obraztsov V. N. Productivity of awnless brome in steppe conditions of the Central chernozem region of Russia. Vestnik Voronezhskogo Gosudarstvennogo agrarnogo universiteta = Vestnik of Voronezh state agrarian university. 2021;(14),4,71:58-64. (In Russ.). doi: 10.53914/issn2071-2243_2021_4_58
4. Razgulyaeva N. V., Kostenko N. Y., Putsa N. M., Blagoveshenskaya E. Y. Breeding of perennial forage crops for disease resistance. IOP Conference Series: Earth and Environmental Science. 2021;901(1):012013. doi: 10.1088/1755-1315/901/1/012013
5. Vogel K. P., Moore K. J., Moser L. E. Bromegrass. In: L. E. Moser, D. Buxton, and M. D. Casler (eds.). Cool-season forage grasses. Agronomy Monograph. Asa, Madison, WI. 1996. P. 535-567. URL: https://digitalcommons.unl.edu/usdaarsfacpub/2097/
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献