Efficiency of potato processing with pectic polysaccharides
doi: 10.30766/2072-9081.2017.46.5.09-15.
Pages: 9-15.
read allTulinov A.G., PhD in agriculture, leading researcher,
Shlyk M.Yu., associated researcher
Research Institute of Agriculture of the Komi Republic, Syktyvkar, Republic of Komi, Russia
E-mail: toolalgen@mail.ru
The article presents research materials for 2012…2015 on the study of the influence of new growth regulators on precocity, productivity and quality of potato tubers cultivated on sod-podzolic soil in the conditions of the Republic of Komi. Object of research – zoned varieties of potato Nevsky (middle-early) and Gloria (early-ripe). Biopreparation Verva and new pectic polysaccharides Lemnan (LM) – pectin from Lemna minor L. and Silenan (SV) – pectin from callus tissue of Silene vulgaris (M.) G. [Oberna behen (L.) Ikonn] were tested as the growth regulators The experiment scheme included pre-sowing soaking of potato tubers (dilution rate - 100 ml per 10 liters of water, consumption - 10 liters per 1 ton of tubers) and top-dressing of plants at phases of 3…5 leaves and tuber formation (dilution rate - 100 ml per 10 liters of water, consumption of working liquid - 300 liters/ha). Pre-sowing treatment and top-dressing with water was used as control. The use of pectiс polysaccharides accelerated the passage of the development phases of potato varieties: the period of emergence of full shoots – by 2…8 days; from shoots to budding – by 2…7 days, from budding to mass flowering – by 4…14 days. Preparations LM, SV, Verva increased the early potato productivity by 51.2; 32.5; 48.8% (variety Nevsky) and 220.5; 261.4; 245.5% (variety Gloria) in comparison with the control variant. The increments of the total yield were according in variety Nevsky 9.3; 7.3; 8.9 t/ha (38.0…48.4%), in variety Gloria 32.7; 23.7; 29.9 t/ha (106.3…146.6%). Treatment with pectic polysaccharides increased the content of dry matter, starch, and vitamin C in tubers of potato respectively by 1.6…2.4; 5.1…6.2; 3.2…3.7% in variety Nevsky, and by 12.1…14.9; 13.1…17.2; 25.7…32.4% in variety Gloria. The use of preparations LM and SV reduced the nitrate content in tubers by 8…22 mg/kg (variety Nevsky) and 83…71 mg/kg (variety Gloria).
Keywords: potato, pre-sowing soaking, top-dressing, growth regulators, pectic polysaccharides, productivity, quality
References
1. Ovodov Yu.S. Polisakharidy tsvetkovykh rasteniy: struktura i fiziologicheskaya aktivnost’. [Polysaccharides of phanerogams: structure and physiological activity]. Bioorganicheskaya khimiya. 1998. Vol. 24. no. 7. pp. 483-501.
2. Gould S.E., Rees D.A., Richardson N.G., Steel I.W. Pectic polysaccharides in the growth of plant cells: molecular structural factors and their role in the germination of white mustard. Nature. 1965. Vol. 208. pp. 876-882.
3. Darvill A., Augur C., Bergmann C., Carlson R.W. et al. Oligosaccharins-oligosaccharides that regulate growth, development and defence responses in plants. Glycobiology. 1992. Vol. 2. no. 3. pp. 181-198.
4. Francis D., Sorrell D.A. The interface between the cell cycle and plant growth regulators: a mini review. Plant Growth Regulation. 2001. Vol. 33. pp. 1-12.
5. Tulinov A.G. Effektivnost’ biologicheski aktivnykh veshchestv pri vozdelyvanii kartofelya v usloviyakh Respubliki Komi. [The effectiveness of biologically active substances in potato cultivation in conditions of the Republic of Komi]. Vladimirskiy zemledelets. 2014. no. 2-3(68-69). pp. 27-29.
6. Dospekhov B.A. Metodika polevogo opyta. [Methods of field experiment]. Moscow: Agropromizdat, 1985. 351 p.
7. Karmanov S.N., Kiryukhin V.P., Korshunov A.V. Urozhay i kachestvo kartofelya. [Yield and quality of potato]. Moscow: Rossel’khozizdat, 1988. 167 p.
8. Korshunov A.V. Kartofel’ Rossii. [Russian Potato]. Vol. 2. Moscow: OOO «Redaktsiya zhurnala «Dostizheniya nauki i tekhniki APK», 2003. 324 p.
9. Nikolaev A.V., Cheremin G.A., Lyubimskaya I.G., Kuznetsov S.S.e.a. Effektivnost’ predposadochnoy obrabotki klubney regulyatorami rosta v semenovodstve kartofelya. [Effectiveness of preplant tuber handling by growth regulators in potato seed production]. Dostizheniya nauki i tekhniki APK. 2016. no. 12. pp. 40-43.
