UDC 631.8
DOI 10.36461/NP.2023.65.1.014
EFFECT OF ZINC CHLORIDE AND ZINC SULPHATE ON THE SOWING QUALITIES OF PEA SEEDS
A.V. Nushtaeva, Candidate of Chemical Sciences, Associate Professor; Yu.V. Blinokhvatova, Candidate of Biological Sciences, Associate Professor
Federal State Budgetary Educational Institution of Higher Education "Penza State Agrarian University" Penza, Russia, tel. 8(8412) 62-83-67, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
This article presents the results of a laboratory study of the effect of a single treatment of pea seeds with zinc ions in the composition of chloride or sulphate on the indicators of seed germination and the development of roots and seedlings at the initial stage. A positive effect of both chloride and sulphate at a concentration of 10-50 mg/l in relation to Zn2+ on seed germination, average root and seedling length, dry mass of roots and seedlings was found. The optimal zinc ion concentration for seed treatment in our experiments was 20-30 mg/l. In this concentration range, zinc chloride had a slightly stronger growth-promoting effect than sulphate, especially on root length. The average root length was increased up to 25 % and seedlings – 49 % after ZnCl2 treatment compared to the control, and up to 3% (roots) and 35-52% (seedlings) after ZnSO4 treatment, respectively. The weights of 100 roots and 100 seedlings were 41% and 64% (ZnCl2) and 32% and 50% (ZnSO4) higher than the control values at a concentration of 20-30 mg/l. In general, a minimum concentration of zinc ions of 20 mg/l, both in chloride and sulphate form, was sufficient for an effective action.
Keywords: trace elements, zinc chloride, zinc sulfate, laboratory germination, germination energy, crop farming.
