Phenological development of the Zabaikalsky highlander in the conditions of the sopochno-plain steppe of the Akmola region

Zabaikalsky highlander is a spring-type, medium- to late-maturing forage crop that develops with a long daylight. It takes 1300°C to complete the "regrowth - full ripeness of seeds" period. From active (above +10°C) temperatures.

The plant is long-lived, it takes root intensively in the first year of life, and the mass of roots increases significantly with the age of the plants.

In the hill-plain steppe of the Akmola region, the mass of roots in the arable layer of 20-40 cm of the total weight of plants in the first year of life was 2.6%, in the second year of plant life it increased to 32.3% and in the third year - to 34.5%. For three years of life, the root system of the Zabaikalsky mountaineer evenly covers the soil profile up to 40-50 cm.

Mass regrowth of shoots begins after a steady transition of air temperature through+10°C from the buds of renewal. The growth and development of shoots varies from 3-5 pieces in plants of the second year of life and depends on the age of the plants; on the initial set density of standing and the method of sowing; on the water and food regime of each particular year.

In the green mass formed during the stalking period, foliage is 59% the highest. An intensive increase in green mass was noted during budding and flowering - 92.4 c/ha. The increase per day is 2.16%.

In the conditions of the hill-plain steppe, the growing season from regrowth to full ripeness of seeds was 120-131 days. The seeds ripen within 65-80 days.

1. Kostikov I.F., Malickaya N.V. Introdukciya novyh i malorasprostranennyh kul'tur v Severnom Kazahstane / Chast' 3 - Gorec zabajkal'skij (Polygonum divaricatum): monografiya. - Petropavlovsk: SKGU imeni M. Kozybaeva, 2017. - 180 s.

2. Malickaya N.V., Kostikov I.F., Ashirbekov M.Zh. Қazaқstannyң SoltYStik өңігіМе Aconogonum divaricatum L. Nakai ex t. Mori zhemshөp pen tyuymra өsirudiң shyru tegi men taraluy, sharuashylyu ma^zy: monografiya. - Petropavl: M^ozybaev atyndary SKU, 2025. - 193 b.

3. Krolevec R.L., Stepanov A.F., Samonin R.A. Kormovaya i semennaya produktivnost' gorca zabajkal'skogo v yuzhnoj lesostepi Omskoj oblasti // Novye i netradicionnye rasteniya i perspektivy ih ispol'zovaniya: materialy VI Mezhdunarodnogo simpoziuma / Vserossijskij nauchno-issledovatel'skij institut selekcii i semenovodstva ovoshchnyh kul'tur. - Moskva, 2005. - T. 3. - S.124-127

4. Bushueva A.V. Introdukciya gorca zabajkal'skogo v usloviyah sopochno-ravninnoj stepi Severnogo Kazahstana // Agrarnyj vestnik Urala. - 2008. - №4(46). - S.52-53

5. Marchuk A.V. Netradicionnye kormovye kul'tury - rezerv povysheniya pitatel'noj cennosti kormov Severnogo Kazahstana// Vestnik nauki Akmolinskogo agrarnogo universiteta. - 2001. - №3. - S.98-101

6. Metodicheskie ukazaniya po provedeniyu polevyh opytov s kormovymi kul'turami / pod redakciej Yu.K. Novoselova. - Moskva, 1997. - 156 s.

7. Malickaya N.V. Gorec zabajkal'skij v Severnom Kazahstane: monografiya. - Saarbrucken: LAP LAMBERT Academic Publishing, 2011. - 183 s.

8. Stepanov A.F. Sozdanie i ispol'zovanie mnogoletnih travostoev v Zapadnoj Sibiri: avtoreferat dissertacii doktora s.-h. nauk. - Omsk, 1996. - 46 s.

9. Chubarova G.V. Grechiha (gorec) zabajkal'skaya // Silosnye kul'tury. - Moskva: Kolos, 1974. - S. 245¬ 250

10. Malickaya N.V. Vliyanie fotosinteticheskoj aktivnosti gorca Polygonum divaricatum L. na urozhajnost' // Sibirskij vestnik sel'skohozyajstvennoj nauki. - 2008. - №11. - S.21-24

11. Stepanov A.F. Mnogoletnie netradicionnye kormovye kul'tury v Zapadnoj Sibiri: monografiya. - Omsk: OmGAU, 1996. - 60 s.

12. Usova M.V., Stepanov A.F. Gorec zabajkal'skij kak perspektivnaya kormovaya kul'tura // Problemy sel'skogo hozyajstva Sibiri. - Omsk, 1997. - Vypusk 3. - S.19-21

13. Stepanov A.F. Novye kormovye kul'tury v Sibiri// Regional'naya nauchnaya konferenciya po kormoproizvodstvu. - Novosibirsk, 1993. - S.38-39

14. Demina A.E., Moiseev K.A. Povyshenie produktivnosti gorca zabajkal'skogo // Zemledelie. - 1976. - №12. - S.63-64

15. Kuznecova E.H. Ekologo-biologicheskie osnovy introdukcii gorca zabajkal'skogo (rastopyrennogo) Poligonum divaricatum L. v Irkutskoj oblasti: avtoreferat dissertacii kandidata biologicheskih nauk. - Irkutsk, 1999. - 18 s.

16. Malickaya N.V. Vozdelyvanie i ispol'zovanie netradicionnyh kormovyh kul'tur v umerennozasushlivoj stepi Severnogo Kazahstana // Vestnik KrasGAU. - 2015. - №7. - S.148-153

17. Kostikov I.F., Bushueva A.V. Osobennosti posleuborochnogo dozrevaniya semyan v usloviyah Severnogo Kazahstana // Vestnik sel'skohozyajstvennoj nauki Kazahstana. - 2006. - №2. - S.19

18. Sveshnikova N.N., Sveshnikov A.M. Novye mnogoletnie kormovye kul'tury na severe Kazahstana // Vestnik sel'skohozyajstvennoj nauki Kazahstana. - 1987. - №12. - S.54-57

19. Moiseev K.A., Sokolov V.S. Malorasprostranennye silosnye kul'tury. - Leningrad: Kolos, 1979. - 328 s.

20. Demina A.E. Gorec zabajkal'skij - perspektivnoe silosnoe rastenie severnyh rajonov // Shestoj simpozium po novym kormovym rasteniyam. - Saransk, 1973. - S.44-45

21. 21 .Malickaya N.V. Podbor srokov poseva dlya konvejernogo ispol'zovaniya kormovyh kul'tur v Severnom Kazahstane // Mezhdunarodnaya nauchno-prakticheskaya konferenciya «Sovremennye tekhnologii v agronomii, lesnom hozyajstve i priemy regulirovaniya plodorodiya pochv», posvyashchennaya 65-letiyu Agronomicheskogo fakul'teta. - Ulan-Ude: Buryatskaya GSKHA, 2017. - S.78-84

22. Krolevec R.L. Vliyanie sroka poseva na urozhajnost' i kachestvo semyan gorca zabajkal'skogo // Agrarnyj vestnik Urala. - 2007. - №3(39). - S.38-40 23. Medvedev P.F. Semenovodstvo novyh kormovyh kul'tur. - Leningrad: Kolos, 1974. - 144 s.