Eeffect of nitrogen application rate in the field on germination indices of three winter canola (Brassica napus L.) cultivars in standard germination test | ||
| علوم و فناوری بذر ایران | ||
| Article 1, Volume 1, Issue 1, March 2012, Pages 1-19 PDF (323.34 K) | ||
| Document Type: Original Article | ||
| Abstract | ||
| In order to evaluate the effect of different rates of nitrogen fertilizer on viability and germination indices of three winter canola (Brassica napus L) cultivars, an experiment was conducted based on randomized complete block design with factorial arrangement of treatment in four replications. The treatments included four levels of nitrogen (N) 0(control), 70, 140 and 210 kg ha-1 and three canola cultivars Okapi, Orient and Modena. Results of standard germination test indicated that there was a significant difference between cultivars in terms of germination percentage, seedling dry weight and seedling weight vigor index. The effect of nitrogen was significant on all traits expect seedling weight vigor index. Furthermore, there was a significant interaction between cultivar and nitrogen on germination percentage, seedling length, meangermination time and seedling length vigor index. Additionally it was observed that germination percentage decreased by applying nitrogen in all three cultivars, and the highest germination percentage (98%) was achieved from Okapi cultivar without using nitrogen (control). The highest seedling length vigor index was obtained from Okapi cultivar by applying 210 kg ha-1 nitrogen. Additionally Modena cultivar seeds, produced by using 140 kg ha-1 nitrogen, germinated faster than the other seeds. | ||
| Keywords | ||
| Canola; nitrogen; Seed germination; Seedling vigor index | ||
| References | ||
|
Abba, E. J. and A. Lovato. 1998. Effect of seed storage temperature and relative humidity on maize
(Zea mays L.) seed viability and vigour. Seed Sci. Technol. 27: 101-114.
Abul-Baki, A. A. and J. D. Anderson. 1973 .Vigour determination in soybean by multiple criteria. Crop Sci.
13:630-633.
Anderson, B. and Bengtsson A. 1989. The influence of row spacing, seed rate and sowing time on over
wintering and yield in winter oilseed rape (Brassica napus L.).Can. J. Plan. Sci. 69:43-51.
Angelini, L., L. Lazzeri, S. Galletti, A. Cozzani, M. Macchia and S. Palmieri. 1998. Antigerminative activity
of three glucosinolate-derived products generated by myrosinate hydrolysis. Seed Sci and Technol. 26.: 71-
780.
Anonymous, 2008a. Agricultural Statistics, Ministry of agriculture, Deputy of planning and economic affairs,
Office of statistics and information technology, First version: Agricultural and Garden Crops.
Anonymous, 2008b. International rules for seed testing. Chapter 5: germination test PP: 1-57.
Bilsborrow, P.E., E.J. Evans and F.J. Zhao. 1993. The influence of spring nitrogen on yield, yield
components and glucosinolate content of autumn-sown oilseed rape (Brassica napus L.). J. Agric. Sci. 120:
219-224.
Bulisani, E. A. and R. L. Warner. 1980. Seed protein and nitrogen effects upon seedling vigour in wheat.
Agron. J. 72.: 657-662.
Ejaz Ahmad warrich, S .M. and A. Basra. 2002. Effect of nitrogen on grain quality and vigour in wheat. Int.
J. Agric. Biol. 5: 325-329.
Ellis, R. H. and E. H. Roberts. 1981. The quantification of ageing and survival in orthodox seeds. Seed Sci.
Technol. 9.:377-409.
Farajnia, A. 2004. Interaction effect of irrigation regime and nitrogen fertilizer on yield and oil percentage
canola in east Azerbaijan, Tikmedash region. J. Agric. Sci (University of Tabriz); 14(1);25-34.
Gerath, N and A. Schweiger. 1991. Improvement of the use of nutrients in winter rape. A strategy of
economically and ecologically responsible fertilizing. PP:1197-1201. in D. I. Mc Gregor (Ed). Proceedings
of the 8th International Rapeseed Congress, Saskatoon, Canada.
Kuchtova, P., P. Baranyk, J. Vasak and J. Fabry. 1996. Yield forming factors of oilseed rape. Rosliny
Oleiste, 17: 223-234.
Landivar, J. A. and J. N. Jenkins. 1983. The application of Gossym in genetic feasibility studies. Analyses of
increasing photosynthesis, specific leaf weight and longevity of leaves. Crop Sci. 23:504-510
Pallais, N., S. Villagrcia, J. Tapia. and R. Garcia. 1987. Effect of supplemental nitrogen on true potato seed
weight. American Potato J. 64:483-491.
Pollock, B. M. and E.E. Ross. 1972. Seed and seedling vigour. Kozlowski, T. T. (Eds.). Seed biology,
Academic Press.
Roodi, D., S. Rahmanpour and F. Javidfar. 2003. Canola agronomy. Oil seed research department. Seed and
Plant Improvement Institute(SPII), Technical Monograph, PP: 53.
Sawan, Z. M., M. S. Maddah El Din and B.R. Gregg. 1989. Effect of nitrogen fertilization and foliar
application of calcium and micro-elements on cotton seed yield, viability and seedling vigor. Seed Sci.
Technol. 17:421-431.
Scott, R. K., E. A. Oguremi, J. D. Ivins and N. J. Mendham. 1973. The effect of fertilizers and harvest date
on growth and yield of oilseed rape sown in autumn and spring. J. Agric. Sci. 81: 287-293.
Semeniuk, P. 1964. Effect of Various Levels of Nitrogen, Phosphorus, and Potassium on Seed Production and
Germination of Matthiola incana. Bot. Gazette,. 125: 62-65.
Welch, R. M. 1986. Effect of nutrition deficiencies on seed production and quality. Adv. Plant Nutrition. 2:205-
247. | ||
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