Pre-sowing seed treatment (pelleting) influence on field germination and further growth of Scots pine (Pinus silvestris L.) seedlings

Abstract

We studied the effect of pelleting on field germination of seeds and biometric parameters (stem height, root neck diameter, root length and total biomass) of Scots pine (Pinus sylvestris L.) seedlings of the second and third years of growth in the Primorsky Territory. It was found that the germination capacity of pelleted seed was 6,8 % lower than the control samples values, but seedlings of the second year of growth obtained from seed material subjected to pelleting showed values higher than the control ones by 21,9 %. At the same time, root length exceeded the control samples by an average of 10,3 %, while the diameter of the root neck was on average 16,1 % larger, and the total biomass increased by 35,1 %. For seedlings of the third year of growth, similar indicators were higher by 30,4 %; 27,9 %; 14,7 % and 71,1 %, respectively. In the future, it is recommended to study the effect of pelleting on the subsequent growth of Scots pine seedlings.

Using pyrimidinecarboxylic acids as growth stimulants for Rhododendron ledebourii Pojark and Rhododendron smirnowii Trautv.

“…Over the past few years, the cultivation of plants has been facing a number of challenges, including a dramatic increase in temperatures, lack of soil water, and the need for more resistant and hardy plants, which grow even under the harshest conditions. It is therefore vital to minimise the time required for the growth of planting material, which can be done using growth and germination stimulants, including synthesised chemical compounds Pentelkina, 2003;Vasin et al, 2008Vasin et al, , 2009Ostroshenko and Ostroshenko, 2011;Schuchka, 2006;Baranova, 2013a;Khodaei-Joghan et al, 2018;Nesterkina et al, 2019) and other original modes (Shibaeva et al, 2018).…”