References
[1] [BPS] Badan Pusat Statistika. (2017). Statistik Luas Panen dan Produktivitas Bawang Merah Nasional. Jakarta, West Java, Indonesia. Retrieved from http://www.bps.go.id.
[2] Idhan, A., Syam’un E., Zakaria, B., Riyadi, M. (2015). Potential Selection of Flowering and Tuber Production in Fourteen Onion Varieties. Internl J. of Current Rese in Biosci and Plant Biol., 7(2): 63-67.
[3] Demir, I., C. Cebeci, and T. Guloksuz. (2012). Electrical conductivity measurements to predict germination of commercially available radish seed lots. Seed Sci. & Technol., 40: 229-237. doi: https://doi. org/10.15258/sst.2012.40.2.08.
[4] Powell, A. A. and S. Matthews. (2012). Seed ageing /repair hypothesis leads to new testing methods. Seed Sci.& Technol., 34: 15-25.
[5] Marin, M., G. Laverack, A. A. Powell, and S. Matthews. (2018). Potential of the electrical conductivity of seed soak water and early counts of radicle emergence to assess seed quality in some native species. Seed Sci & Technol., 46(1): 71-86.
[6] Matthews, S., M. H. Wagner, L. Kerr, G. McLaren, and A. A. Powell. (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: 412-424.
[7] Matthews, S. and M. Khajeh-Hosseini. (2006). Mean germination time as an indicator of emergence performance in the soil of seed lots of maize (Zea mays). Seed Sci. & Technol., 42: 339-347. doi: doi.org/10.15258/sst.2006.34.2.09.
[8] Demir, I., S. Ermis, K. Mavi, and S. Matthews. (2008). Mean germination time of pepper seed lots (Capsicum annuum L.) predicts size and uniformity of seedlings in germination tests and transplant modules. Seed Sci. & Technol.,36: 21-30.
[9] Mavi, K., F. Mavi, I. Demir, and S. Matthews. (2014). The electrical conductivity of seed soak water predicts seedling emergence and seed storage potential in commercial seed lots of radish. Seed Sci. and Technol., 42: 76-86.
[10] Khajeh-Hosseini, M., M. Nasehzadeh, and S. Matthews. (2010). Rate of physiological germination relates to the percentage of normal seedlings in standard germination tests of naturally aged seed lots of oilseed rape. Seed Sci. and Technol., 38: 602-611.
[11] Mavi, K., A. A. Powell, and S. Matthews. (2016). Rate of radicle emergence and leakage of electrolytes provide quick predictions of the percentage normal seedlings in standard germination tests of radish (Raphanus sativus). J. Seed Sci and Technol., 44: 393-409.
[12] International Seed Testing Association (ISTA). (2014). International Rules for Seed Testing. Zurich, Switzerland: ISTA.
[13] Khajeh-Hosseini, M., A. Lombholt, and S. Matthews. (2009). Mean germination time in laboratory estimates the relative vigour and field performance of commercial seed lots of maize (Zea mays L.). Seed Sci and Technol., 37: 446-456.
[14] Wagner, M. H., D. Demilly, S. Ducournau, C. Durr, and J. Léchappé. (2011). Computer vision for monitoring seed germination from a dry state to young seedlings. Seed Testing Intl., 142: 49-51.
[15] Rao, R. G. S., P. M. Singh, and M. Rai. (2006). Storability of onion true seeds and effects of packaging and storage conditions on viability and vigour. Scientia Horticulturae, 110: 1- 6.
[16] Feda, N., Paramesh, B. Rafi, and A. Ahmad. (2018). Influence of accelerated ageing test on seed quality of onion (Allium cepa L.). Intl. J. of Multidisciplinary Educ and Res., 3(3): 1-4.
[17] Rodo, A. B. and J. Marcos-Filho. (2003). Onion seed vigour in relation to plant growth and yield. Hort Brasileira, Brasília., 21(2): 220-226.
[18] Ellis, R. H. and E. H. Roberts. (1981). The quantification of ageing and survival in orthodox seeds. Intl. J. of Seed Sci. & Technol., 9: 373-409.
[19] Maguire, J. (1962). Speed of germination-Aid in selection and evaluation for seedling emergence and vigour. Crop Sci., 2: 176-177.
[20] Sadeghianfar, P., M. Nazari, and G. Backes. (2019). Exposure to Ultraviolet (UV-C) Radiation Increases Germination Rate of Maize (Zea maize L.) and Sugar Beet (Beta vulgaris) Seeds. J. Plants., 1: 1-6. doi: doi:10.3390/plants8020049.
[21] Dos Santos Dias, D. C. F., M. C. Bhering, D. Tokuhisa, and P. C. Paulo. (2006). Electrical conductivity test to evaluate onion seed vigour. Brazilian J. of Seeds., 28(1): 154-163.
[22] RStudio Team. (2015). RStudio: Integrated Development for R. RStudio, Inc., Boston, MA URLhttp://www.rstudio.com/.
[23] Kapoor, R., A. Arya, M. A. Siddiqui, A. Amir, and H. Kumar. (2010). Seed deterioration in chickpea (Cicer arietinum L.) under accelerated ageing. Asian J. of Plant Sci.,9: 158-162. doi:doi:10.3923/ajps.2010.158.162.
[24] JYoti, J. and C. P. Malik. (2013). Seed deterioration: Seed viability, seed deterioration and seed quality improvements in stored. Intl. J. of Life Sci, Biotechnol. and Pharmaceutical Res., 2: 374-385.
[25] Mathews, S. and A. A. Powell. (2011). Towards automated single counts of radicle emergence to predict seed and seedling vigour. Seed Testing Intl., 141: 39-45.
[26] Demir, I., K. Mavi, B. B. Kenanoglu, and S. Matthews. (2008). Prediction of germination and vigour in naturally aged com-mercially available seed lots of cabbage (Brassica oleracea var. capitata) using the bulk conductivity method. Seed Sci. & Technol., 36: 509-523.
[27] Mavi, K., I. Mavi, S. Demir, and S. Matthews. (2010). Mean germination time estimates the relative emergence of seed lots of three cucurbit crops under stress conditions. Seed Sci. Technol., 38: 14-25.
[28] Lv, Y. Y., Y. R. Wang, and A. A. Powell. (2016). Frequent individual counts of radicle emergence and mean germination time predict seed vigour of Avena sativa and Elymus nutans. Seed Sci. &Technol., 44: 189-198.
[29] Mirdad, Z., A. A. Powell, and S. Matthews. (2006). Prediction of germination in artificially aged seeds of Brassica spp. using the bulk conductivity test. Seed Sci and Technol., 34, 273-286.
[30] Ermis, S., M. Karslioglue, E. Ozden, and E. Demir. (2015). Use of single radicle emergence count as a vigour test prediction of seedlings emergence potential of leek seed lots. Seed sci. & technol., 43:308-312.
[31] Bello, P. and K. J. Bradford. (2016). Single-seed oxygen consumption measurements and population-based threshold models link respiration and germination rate under diverse conditions. Seed Sci. Res., 26: 199-221.
[32] Matthews, S., E. Noli, I. Demir, M. Khajeh-Hosseini, M. H. Wagner. (2010). Evaluation of seed quality: from physiology to international standardisation. Seed Sci Res., 20: 69-73.
[33] Matthews, S., M. H. Wagner, L. Kerr, G. McLaren, and A. A. Powell. (2018). Potential for early counts of radicle emergence and leakage of electrolytes as quick tests to predict the percentage of normal seedlings. Seed Sci. & Technol., 46(1): 1-18.
[34] International Seed Testing Association (ISTA). (2017). International Rules for Seed Testing. Zurich, Switzerland: ISTA.
[35] Powell, A. A. and K. Mavi. (2016). Application of the radicle emergence test to radish (Raphanus sativus). Basserdorf: International Seed Testing Association. J. Seed Sci. & Technol., 44: 410-418.