Vigor Tests to Estimate Seedling Emergence Potential and Longevity in Viola Seed Lots

Abstract

<jats:p>A study was made of the relationship among accelerated aging (AA), saturated salt accelerated aging (SSAA), mean germination time and second day germination percentage vigor tests, and seedling emergence and longevity storage at 5 and 25 °C for 6 and 12 months. Initial germination was above 80% for all seed lots. Seedling emergence values varied between 21% and 94% and mean emergence time between 6.5 and 11.0 days among seed lots. The SSAA test correlated with emergence better than the AA test. All combinations of SSAA temperatures (41, 43, and 45 °C for 72 h) were correlated to emergence (<jats:italic>r</jats:italic> = 0.95 to 0.98, <jats:italic>P</jats:italic> &lt; 0.001) and emergence rate (<jats:italic>r</jats:italic> = 0.90 to 0.94, <jats:italic>P</jats:italic> &lt; 0.001). Seed germination after 6 months of storage ranged between 21% and 98% at 5 °C and 26% and 100% at 25 °C. Corresponding values were 19% and 98% and 15% and 89% after 12 months. All combinations of AA and SSAA were related to longevity of seed lots, but significance for SSAA was higher (above <jats:italic>P</jats:italic> &lt; 0.01) than AA (<jats:italic>P</jats:italic> &lt; 0.05). In both tests, a higher aging temperature reduced the significance level. Mean germination time and second day germination percentages also predicted seedling emergence and longevity (<jats:italic>P</jats:italic> &lt; 0.05 in all cases). Standard germination percentages were successful in predicting seedling emergence (<jats:italic>P</jats:italic> &lt; 0.05), but with one exception failed to predict (<jats:italic>P</jats:italic> &gt; 0.05) longevity in viola seed lots. In conclusion, although both aging tests successfully differentiated seed quality, SSAA test results better predict emergence and longevity of viola seed lots.</jats:p>

Seed Vigour Tests to Estimate Seedling Emergence in Cress (Lepidium sativum L.) Seed Lots

“…This was the idea behind the radicle emergence test (RE) and was related to MGT (Mavi et al, 2016). There is clear evidence that the early single radicle emergence count during germination testing is related to seedling emergence in the field and in modules for agronomic and horticultural crop seeds (Demir et al, 2011;Matthews et al, 2012;Lv et al, 2016;Mavi et al, 2016). Our results in cress seeds (RE24h) agreed with these previous findings.…”

The Effect of Phosphorus and Potassium on the Growth and Quality of Viola (Viola cornuta L.) Seed Production

“…Viola stock seeds were sown in a tray containing mixed seedling media (sand and cocopeat equaling in volume) and then kept in a growth chamber with a temperature of 18 o -22 o C and light intensity of 1000 lux for five days (Oh et al, 2010). Seedlings were maintained for the next 35 days after the sowing (Demir et al, 2011). The seedlings were transplanted in a 5l-polybag with a medium containing 2,5l-rice husk and 2,5l-soil (equal in volume).…”

“…The differences between treatments were evaluated by the Duncan Multiple Range Test (DMRT) at 5% level of probability. The correlation test was used to find out the closeness between variables (Demir et al, 2011).…”

Modifikasi Suhu Uji Pemunculan Radikula untuk Mempersingkat Pengujian Vigor Benih Jagung

“…Nilai MET yang rendah menunjukkan pertumbuhan kecambah lebih cepat di lapangan. Hasil penelitian Demir et al (2011) pada benih viola (Viola tricolor L.) menunjukkan, semua uji vigor (accelerated aging, saturated salt accelerated aging, dan MGT) berkorelasi erat dengan daya tumbuh (seedling emergence) dan MET.…”