Evaluation of the quality of tomato seed populations from the organic production system during aging

Abstract

A total of six tomato seed populations, collected in the autumn of 2016 at different locations in Serbia (West (3), South (1), North (1) and East (1)), were enrolled in this study. Seeds of the tomato populations considered were produced in the organic growing system in the area of Zaovice (76 m a.s.l., chernozem),

Assessment of seed quality of different cabbage lots during aging

“…According to the analysis of variance (ANOVA), our results showed a significant effect (p<0.01) of the year (Y) on the all examined parameters seeds (Table 1). The obtained results are consistent with results (Stanisavljević et al, 2018;Poštić et al, 2020). Furthermore, a significant effect (p<0.05) of the seed lot (L) and interaction (Y × L) on all investigated characteristics was established.…”

“…The strongest correlation between the examined parameters was in the first year and weakened in the second and third years. In the first year as expected, significant positive correlation between germination energy and total germination was found (r = 0.84779, p<0.01) these results agreement with the results (Stanisavljević et al, 2017;Poštić et al, 2020). The highly and negative interdependence was achieved between total germination and dead seeds (r = -0.94363, p<0.001) and abnormal seedlings (r = -0.78019, p<0.05).…”

“…Based on the obtained results, we can conclude that the total germination of highly hybrid conventional cabbage seeds decreases significantly during aging, as a direct consequence of a very significant increase in the number of abnormal seedlings. The same conclusions were reached by Poštić et al (2020), assessing the germination of tomato seeds. The most common form of seedling deformity is the primary root is missing or stunted, among others (trapped primary root in the seedling, short hypocotyl and necrotic cotyledons.…”

“…As expected, the highest germination energy of the seed lots were recorded in 2019 and is very significantly higher, compared to the observed values of germination energy in 2020 and 2021 (Table 2). Decreases in germination energy as a consequence of seed aging were observed earlier on alfalfa seeds (Stanisavljević et al, 2018) and on tomato seeds (Poštić et al, 2020). The average germination energy of the examined lots in 2019 was (95%), in 2020 (74%), and in 2021 only (24%).…”

The changes in seed quality of selected pepper varieties in three years

“…This means that these two traits are related and when one of the observed traits decreased, the other also decreased. Similar results were obtained by Poštić et al 2020 with the germination energy and the total germination of the tomato seeds (r = 0.8711, p <0.001). The correlation coefficient for the other observed traits was not at the statistical level (p>0.05).…”