Radicle emergence test predicts longevity (half viability period, p50) of leek seed lots
[ N/A ]
Tarih
2017
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Ista-Int Seed Testing Assoc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This study was carried out to test whether a single radicle emergence count (RE) can be used for predicting longevity in leek seed lots. Experiments were carried out on eight commercial leek seed lots with normal germination percentages above 75%. Single radicle emergence counts (2 mm) were performed after 120 hours of germination (20 degrees C, dark, between papers). Seed longevity was determined by hermetic storage at 45 degrees C with 20% seed moisture content over 96 'hours. Twelve subsamples were taken out of controlled storage after 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88 and 96 hours and seed survival curves were constructed on radicle germination tests. Half viability period, p(50), was calculated for each lot. The RE percentages in leek seed lots ranged between 75 and 94% after 120 hours, while p(50) values ranged from 25.9 to 77.4 hours. Regression between RE of 120 hours and p(50) was found to be highly significant (R-2 = 0.848, P < 0.01). Thus, single radicle emergence counts (120 hours) could be used as an assessment of seed longevity in leek.
Açıklama
Anahtar Kelimeler
Mean Germination Time, Vigor
Kaynak
Seed Science and Technology
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
45
Sayı
1
