Determining Planting Time and Seed Rate of Spring Oilseed Rape (Brassica napus L.) In Tabriz Plain

Document Type : Research Paper

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Abstract

        The present research was done in order to determine the suitable planting date and seed rate and to evaluate the seed and oil yields and chlorophyll rate of spring oilseed rape in Tabriz plain climate (cold and semi-arid in the Copen climate classification system). The experiment was conducted as split plot based on a RCBD design in 3 replications with two factors including sowing date (30 March and 9 and 19 April) and seed rate (4, 6, 8 and 10 Kg seeds per hectare). The RGS003 as adapted and superior genotype was used for cultivation. The study was carried out in East Azarbaijan Agriculture and Natural Resources Research and Education Center (Khosrovshah station) during the 2018 year. The results indicated that plants in the 30 March planting date had significantly higher values of field ground cover percent, Leaf chlorophyll index, plant height, pods per plant, 1000 seeds weight, seed oil percent and seed and oil yields. Having sufficient time for growth and establishment, these plants produced higher yields via maximum use of environmental factors. Correlations among the field ground cover percent, Leaf chlorophyll, plant height indices, with each other and seed yield components (except seeds in pod), seed and oil yields were significantly positive. These indices had an important role in yield determining. Finally, the most seed and oil yields including 1673 and 694 Kg.ha-1 respectively, were achieved from 30 March planting date with 6 Kg.ha-1 seed rate for RGS003 as spring cultivar at Tabriz plain.
 

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References

Alizadeh B and Amiri-Ogan H. 2013. The results of oilseed research during 2012-13 cropping season. Seed and Plant Improvement Institute. Karaj. Iran, 1: 13-14. (In Persian).
Angadi SV, Cutforth HW, Mc Conkey, BG and Gan Y. 2003. Yield adjustment by canola growth at different plant population under semi-arid conditions. Crop Science, 43: 1358-1366.
Arvin P, Azizi M and Soltani A. 2010. Comparison of yield and physiological indices of spring cultivars of oilseed rape species. Seed and Plant Journal, 25: 401-417. (In Persian).
Auld DL, Bettis BL and Dial MG. 1985. Planting date and cultivar effect on winter rape seed production. Agronomy Journal, 6: 197-205.
Chay P and Thurling N. 1989. Variation in pod length in spring rape (Brassica napus L.) and its effect on seed yield and yield components. Cambridge Agriculture Science Journal, 113: 139-147.
Chengci C, Jakson G, Neill K, Wichman D, Johnson G and Johnson D. 2005. Determining the feasibility of early seeding canola in the northern great plain. Agronomy Journal, 97: 1252-1262.
Faraji A. 2013. The role of analysis components to determine seed yield of canola (Brassica napus L.) in Gonbad area. Journal of Plant Production, 20: 217-233. (In Persian).
Gunasekera CP, Martin LD, Siddique KHM and Walton GH. 2006. Genotype by environment interactions of Indian mustard (Brassica juncea L.) and canola (B. napus L.) in Mediterranean-type environments 1. Crop growth and seed yield. European Journal of Agronomy, 25: 1-12.
Hanson BK, Johnson BL, Henson RA and Riveland NR. 2008. Seeding rate, seeding depth and cultivar influence on spring canola performance in the northern great plain. Agronomy Journal, 100: 1339-1346.
Harker KN, O׳Donovan JT, Smith EG, Johnson EN, Reng G, Willenborg CJ, Golden RH, Mohr R, Gill KS and Grenkow LA. 2015. Seed size and seedling rate effects on canola emergence, development, and yield and seed weight. Canadian Journal of Plant Science, 95: 1-8.
Jenkins PD and Leitch MH. 1986. Effects of sowing date on the growth and yield of winter oil seed rape (Brassica napus L.). Cambridge Agriculture Science Journal, 105: 405 – 420.
Kimber DS and McGregor DI. 1995. The species and their origin cultivation and world production. In: Kimber DS and McGregor DI (Eds.). Brassica oilseeds. CAB International, Pp. 1-7.
Krzymanski J. 1998. Agronomy of oilseed brassicas. Acta Horticulture, 459: 55-60.
Lutman PJ and Dixon FL. 1987. The effect of drilling date on the growth and yield of oilseed rape (Brassica napus L.). Cambridge Agriculture Science Journal, 108: 195-200.
Mirnezami-Ziabari, SH and Sanei-Shariatpanah, M. 1994. Usual methods in fats and oils analysis. Mashhad Publication Company. 274p. (In Persian).
Pasban-Eslam B. 2016. Stability of grain and oil yields and yield components in oilseed rape (Brassica napus L.) under early and late season drought. Journal of Sustainable Agriculture and Production Science, 25(4): 177-187. (In Persian).
Roques SE and Berry PM. 2016. The yield response of oilseed rape to plant population density. Agricultural Science Journal, 154: 305-320.
Sabaghnia N, Dehghani H, Alizadeh B and Moghaddam M. 2010. Heterosis and combining ability analysis for oil yield and its components in rapeseed. Australian Journal of Crop Science, 4: 390-397.
Sharghi Y, Shirani- Rad AH, Ayenehband A, Noormohammadi G and Zahedi H. 2011. Yield and yield components of six canola (Brassica napus L.) cultivars affected by planting date and water deficit stress. African Journal of Botany, 10: 9309-9313. 
Shirani-Rad AH and Roudi D. 2013. The results of oilseed research during 2012-13 cropping season. Seed and Plant Improvement Institute. Karaj. Iran, 2: 14-16. (In Persian).
Shirani-Rad AH, Roudi D and Shariati F. 2010. The results of oilseed research during 2009-10 cropping season. Seed and Plant Improvement Institute. Karaj. Iran, 2: 44-52. (In Persian).
Sultan SE. 2000. Phenotypic plastisity for plant development, function and life history. Plant Science,
 5: 537-542.
 
 
JOURNAL OF AGRICULTURAL SCIENCE AND SUSTAINABLE PRODUCTION
Volume 29, Issue 2
July 2019
Pages 79-95

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