Seed Vigour Evaluation of Rocket (Eruca sativa Mill.) Seed Lots

Öz

The work was carried out to test the seed vigour test to correlate seedling emergence potential of rocket seed lots in the field conditions. Standard laboratory germination percentages of the 12 seed lots were ranged between 87 and 93%. Radicle emergence (2 mm) percentages after 18 (RE18h), 24 (RE24h), 36 (RE36h) and 48 (RE48h) during standard germination test, accelerated ageing test (AA, 45 °C, 100% RH, 24h, 48h), electrical conductivity (20 °C, 40 ml, 50 seeds) of 8h, 16h and 24h readings were used as vigour tests. Seeds were sown in two occasions in the field and vigour test results were correlated with seedling emergence percentages. Even though all seed vigour tests were significantly correlated with emergence at various levels EC24h and RE24h showed the highest correlation (p<0.001) with seedling emergence percentages in both sowing times. Correlation values were 0.824 and 0.844 in EC24h, 0.860 and 0.874 in RE24h.The lowest correlations were seen in standard laboratory germination test as 0.640 and 0.654 (p<0.05). Results indicated that EC24h and RE24h are practical and fast vigour tests that can be related to seedling emergence potential in rocket seed lots.

Anahtar Kelimeler

• Accelerated ageing test
• electrical conductivity test
• Eruca sativa
• Radicle emergence test
• Vigour test

Kaynakça

1. Abd El-Hamid SR, 1999. Biochemical studies on some untraditional plant oils. M.Sc. Thesis. Biochemistry department. Faculty of Sciences. Ain-Shams University, pp 40.
2. Basak O, Demir I, Mavi K, Matthews S, 2006. Controlled deterioration test for predicting seedling emergence and longevity of pepper (Capsicum annuum L.) seed lots. Seed Science and Technology, 34: 723-734.
3. Bedi S, Basra AS, 1993. Chilling injury in germinating seeds: basic mechanisms and agricultural implications. Seed Science Research, 3: 219-229.
4. Demir I, Ermis S, Mavi K, Matthews S, 2008. Mean germination time of pepper seed lots (Capsicum annuum) predicts size and uniformity of seedlings in germination tests and transplant modules. Seed Science and Technology, 36: 21-30.
5. Demir I, Kenanoglu BB, Ozden E, 2019. Seed Vigour Tests to Estimate Seedling Emergence in Cress (Lepidium sativum L.) Seed Lots. Notulae Botanicae Horti Agrobotanici Cluj-Napoca, 47(3): 881-886.
6. Finch-Savage W, Clay HA, Lynn JR, Morris K, 2010. Towards a genetic understanding of seed vigour in small seeded crops using natural variaotaion in Brassica oleracea. Plant Science, 179: 582-589.
7. Hampton, JG, Tekrony DM, 1995. Handbook of Vigor Test Methods, International Seed Testing Association, Bassersdorf, Switzerland.
8. ISTA, 2017. International Rules for Seed Testing, International Seed Testing Association, Bassersdorf, Switzerland.

9. Khajeh-Hosseini M, Rezazadeh M, 2011. The electrical conductivity of soak-water of chikpea seeds provides a quick test indicative of field emergence. Seed Science and Technology, 39: 692-696.
10. 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 Science and Technology, 44: 189-198.
11. Marcos-Filho M, 2015. Seed vigor testing: an overwiew of the pat, present and future perspectives. Scientia Agricola, 72: 363-374.
12. Matthews S, Powell AA, 2011. Towards automated single counts of radicle emergence to predict seed and seedling vigour. Seed Testing International, 142: 44-48.409.
13. 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 Science and Technology, 35: 200-212.
14. 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 Science and Technology, 42: 76-86.
15. McDonald MB, 1999. Seed deterioration: physiology, repair and assesment. Seed Science and Technology, 27: 177-237.
16. Ozden E, Memis N, Kapcak D, Durmus E, Ozdamar C, Ozdemir M, Demir I, 2017. Electrical conductivity relates seed germination in cress. 2nd International Balkan Agriculture Congress, Tekirdag, Turkey, May 16-18, 2017, pp. 476-481.
17. Ozden E, Memis N, Gokdas Z, Catikkas E, Demir I, 2019. Evaluation of Seed Vigour in White Coat French Bean (Phaseolus vulgaris L.) Seed Lots Under Waterlogged or Field Capacity Conditions. Journal of the Institute of Science and Technology, 9(4): 1860-1865.
18. Powell AA, Oliveira M De A, Matthews S, 1986. Seed vigor in cultivars of dwarf French bean (Phaseolus vulgaris) in relation to the colour of the testa. Journal of Agricultural Science, 106: 419-425.
19. Powell AA, Matthews S, 2012. Seed aging/repair hypothesis leads to new testing methods. Seed Technology, 34: 15-25.
20. Powell AA, Mavi K, 2016. Application of the radicle emergence test to radish (Raphanus sativus) seed. In Method Validation Reports 2016, pp. 65-72, International Seed Testing Association, Bassersdorf. Method-Validation-Reports-for-Rules.
21. Usha TS, Dadlani M, 2015. Evaluation of seed vigor in soybean (Glycine max). Legume Research, 38(3): 308-312.