EFFECT OF IRRIGATION REGIEMS AND NITROGEN LEVELS ON SEED YIELD AND SEED QUALITY OF TWO RAPESEED (BRASSICA NAPUS L.) CULTIVARS

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DANESHMAND A.A.R.; SHIRANIRAD AMIR HOSSEIN; NOURMOHAMMADI GHORBAN; ZAREEI GH.; DANESHIAN JAHANFAR

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Journal: Iranian Journal of Crop Sciences Year:2008 | Volume:10 | Issue:3 (39) Page(s): 244-261

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Title

EFFECT OF IRRIGATION REGIEMS AND NITROGEN LEVELS ON SEED YIELD AND SEED QUALITY OF TWO RAPESEED (BRASSICA NAPUS L.) CULTIVARS

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Keywords

RAPESEEDQ2

WATER STRESSQ2

NITROGENQ2

SEED OIL YIELDQ2

OIL CONTENTQ2

PROTEIN CONTENTQ2

Abstract

In order to determine the effects of water deficit and different NITROGEN levels on seed quality, SEED OIL YIELD and seed yield in RAPESEED, two field experiments were conducted using a factorial split-plot in randomized complete block design in, 2005-2006 and 2006-2007 growing seasons in Seed and Plant Improvement Institute, Kafaj, Iran. In this study, three water regimes (irrigation after 40, 60 and 80 percent depletion of soil water) and four NITROGEN levels (0, 75, 150 and 225 Kg/ha) as factorial in main plots and two cultivars (Zarfam and Modena) as sub-plots, were studied. Results showed that increasing the NITROGEN rate from 0 to 220 kg/ha and ??? in soil water, increased the seed yield. Increase in seed yield was related to increasing the number of siliques in plant and number of seeds per silique in both conditions. In WATER STRESS condition the seed oil decreased, but the seed protein increased. Increasing NITROGEN use decreased seed oil, but increased seed protein. Results also showed that in both conditions (normal irrigation and WATER STRESS), high levels of N application could produce higher seed yield and SEED OIL YIELD. Zarfam had a higher NITROGEN uptake and mobilization under normal irrigation and severe WATER STRESS conditions, and also in higher and lower NITROGEN conditions, hence, produced higher seed yield.

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APA: Copy

DANESHMAND, A.A.R., SHIRANIRAD, AMIR HOSSEIN, NOURMOHAMMADI, GHORBAN, ZAREEI, GH., & DANESHIAN, JAHANFAR. (2008). EFFECT OF IRRIGATION REGIEMS AND NITROGEN LEVELS ON SEED YIELD AND SEED QUALITY OF TWO RAPESEED (BRASSICA NAPUS L.) CULTIVARS. IRANIAN JOURNAL OF CROP SCIENCES, 10(3 (39)), 244-261. SID. https://sid.ir/paper/57098/en

Vancouver: Copy

DANESHMAND A.A.R., SHIRANIRAD AMIR HOSSEIN, NOURMOHAMMADI GHORBAN, ZAREEI GH., DANESHIAN JAHANFAR. EFFECT OF IRRIGATION REGIEMS AND NITROGEN LEVELS ON SEED YIELD AND SEED QUALITY OF TWO RAPESEED (BRASSICA NAPUS L.) CULTIVARS. IRANIAN JOURNAL OF CROP SCIENCES[Internet]. 2008;10(3 (39)):244-261. Available from: https://sid.ir/paper/57098/en

IEEE: Copy

A.A.R. DANESHMAND, AMIR HOSSEIN SHIRANIRAD, GHORBAN NOURMOHAMMADI, GH. ZAREEI, and JAHANFAR DANESHIAN, “EFFECT OF IRRIGATION REGIEMS AND NITROGEN LEVELS ON SEED YIELD AND SEED QUALITY OF TWO RAPESEED (BRASSICA NAPUS L.) CULTIVARS,” IRANIAN JOURNAL OF CROP SCIENCES, vol. 10, no. 3 (39), pp. 244–261, 2008, [Online]. Available: https://sid.ir/paper/57098/en

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