İbrahim DEMİR, EREN ÖZDEN, Zeynep GÖKDAŞ, Ebrima NJIE, Mine AYDIN

Radicle emergence test predicts normal germination percentages of onion seed lots with different cultivars and genotypes

Aims: To test radicle emergence count in order to predict normal germination percentages of onion lots. Methods and Results: This work was conducted to test the potential for 2 mm radicle emergence (RE) to predict normal seed germination percentages of 20 onion seed lots. In the first stages of the study RE counts at 72, 76 and 80 h were highly predictive (p

PDF

___

Basu RN (1995) Seed viability, In: Seed Quality: Basic mechanisms and agricultural implications (Eds. Basra AS), Food Products Press, New York. pp. 1–44.

Demilly D, Ducournau S, Wagner MH, Dürr D (2014) Digital imaging of seed germination. In: Plant Image Analysis: Fundamentals and Applications (Eds. Gupta SD, Ibaraki Y), CRC Press, Boca Raton, USA. pp.147- 162

Demir I, Ermis S, Mavi K, Matthews S (2008a) Mean germination time of pepper seed lots (Capsicum annuum) predicts size and uniformity of seedlings in germination tests and transplant modules. Seed Sci. Technol., 36: 21-30.

Demir I, Kenanoglu BB, Ozden E (2019) Seed Vigour Tests to Estimate Seedling Emergence in Cress (Lepidium sativum L.) Seed Lots, Not. Bot. Horti Agrobot. ClujNapoca 47: 881-886.

Ellis RH, Roberts EH (1981) The quantification of ageing and survival in orthodox seeds. Seed Sci. Technol., 9: 373–409

ISTA (2016) International Rules for Seed Testing, International Seed Testing Association, Bassersdorf, Switzerland.

Khajeh-Hosseini M, Nasehzadeh M, Matthews S (2010) Rate of physiological germination relates to the percentage normal seedlings in standard germination tests of naturally aged seed lots of oilseed rape. Seed Sci. Technol., 38: 602-611.

Lv, YY, Wang YR, Powell AA (2016) Frequent individual counts of radicle emergence and mean just germination time predict seed vigour of Avena sativa and Elymus nutans. Seed Sci. Technol., 44: 189-198.

Matthews S, Khajeh-Hosseini M (2006) Mean germination time as an indicator of emergence performance in soil of seed lots of maize (Zea mays). Seed Sci. Technol., 34: 339-347.

Matthews S, Khajeh-Hosseini M (2007) Length of the lag period of germination and metabolic repair explain vigour differences in seed lots of maize (Zea mays L.). Seed Sci. Technol., 35: 200-212.

Matthews S, Powell AA (2011) Towards automated single counts of radicle emergence to predict seed and seedling vigour. Seed Testing International, 142: 44-48.

Matthews S, Noli E, Demir I, Khajeh-Hosseini M, Wagner MH (2012) Evaluation of seed quality: from physiology to international standardisation. Seed Sci. Res., 22:69-73.

Matthews S, Wagner MH, Kerr L, McLaren G, Powell AA (2012) Automated determination of germination time courses by image capture and early counts of radicle emergence lead to a new vigour test for winter oilseed rape (Brassica napus). Seed Sci. Technol., 40: 413-424.

Mavi K, Mavi F, Demir I, Matthews S (2014) Electrical conductivity of seed soak water predicts seedling emergence and seed storage potential in commercial seed lots of radish. Seed Sci. Technol., 42: 76-86.

Mavi K, Powell AA, Matthews S (2016) Rate of radicle emergence and leakage of electrolytes provide quick predictions of percentage normal seedlings in standard germination tests of radish (Raphanus sativus). Seed Sci. Technol., 44: 393-409.

Ozden E, Ozdamar C. Demir I (2018) Radicle Emergence Test Estimates Predictions of Percentage Normal Seedlings in Standard Germination Tests of Aubergine (Solanum melongena L.) Seed Lots, Not. Bot. Horti Agrobot. Cluj-Napoca 46:177-182.

Powell AA, Mavi K (2016) Application of the radicle emergence test to radish (Raphanus sativus) seed. 31. ISTA Congress, June 15-21, Tallinn, Estnonia. pp. 43

Thirusendura SD, Saraswathy S (2017) Seed viability, seed deterioration and seed quality improvements in stored onion seeds: a review. J. Hortic. Sci. Biotechnol., 93:1–7.

Yanping Y, Ronggi G, Qingguan S, Shengfu L (2000) Vigour of welsh onion seeds in relation to storage temperature and seed moisture content. Seed Science and Technology, 28: 817–823.

Wagner MH, Ducournau S, Luciani A, Léchappé J (2012) From knowledge-based research towards accurate and rapid testing of seed quality in winter rape. Seed Sci. Res., 22: 80-85.

Walters C, Wheeler LM, Grotenhuis JM (2005) Longevity of seeds stored in a genebank: species characteristics. Seed Sci. Res., 15: 1-20.