Effect of nitrogen rates on growth characteristics, yield and quality of autumn- sown sugar beet

In order to evaluate the effect of different N rates on yield components, the proportions of each part of the sugar beet plant such as leaf number, leaf area index, canopy expansion rate, and N uptake to total dry matter, were evaluated in autumn planting of 2004-2005 at Safiabad Agricultural Resear...

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Autores principales:	M. Hosseinpour, A.R. Paknejad, A. Naderi, R. Eslamizadeh, V. Uosefabadi, H. Sharifi
Formato:	article
Lenguaje:	EN FA
Publicado:	Sugar Beet Seed Institute 2013
Materias:	autumn sugar beet biomass nitrogen quantitative and qualitative yield Agriculture S Agriculture (General) S1-972
Acceso en línea:	https://doaj.org/article/27826d64793a4bcba4008fa39de37e01
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spelling	oai:doaj.org-article:27826d64793a4bcba4008fa39de37e012021-11-23T04:54:00ZEffect of nitrogen rates on growth characteristics, yield and quality of autumn- sown sugar beet10.22092/JSB.2013.24931735-0670https://doaj.org/article/27826d64793a4bcba4008fa39de37e012013-09-01T00:00:00Zhttps://jsb.areeo.ac.ir/article_2493.html?lang=enhttps://doaj.org/toc/1735-0670In order to evaluate the effect of different N rates on yield components, the proportions of each part of the sugar beet plant such as leaf number, leaf area index, canopy expansion rate, and N uptake to total dry matter, were evaluated in autumn planting of 2004-2005 at Safiabad Agricultural Research Center, Dezful, Iran. Five rates of N fertilizer including 0, 60, 120, 180 and 240 kg/ha and two monogerm cultivars Shirin and Rasoul were evaluated in factorial experiment based on randomized complete block design with four replications. In terms of quantitative and qualitative characteristics, significant differences were observed between two years. In the first year of the experiment, N level had no significant effect on root yield, and both cultivars were placed in one group (average root yield of 93 t/ha), however, sugar percentage was influenced and the maximum value (13.7%) achieved in zero N rate. In the second year, root yield was influenced significantly by N rate and the maximum yield (80.9 t/ha) was achieved at 240 kg/ha N treatment, while sugar percentage was not influenced. In both years, no significant difference was observed among culti-vars for quantitative and qualitative traits. With further N application, the proportion of total biomass increased in petiole and crown and decreased in root, with no influence on leaf dry matter. N rates showed no significant difference in terms of leaf num-ber, leaf area index and complete canopy expansion in the first year of the experiment, whereas, in the second year, significant differences were observed among the treatments, so that increased N rate resulted in increaesed leaf number, leaf area index and the rate of complete canopy expansion. N treatments in the first year had no significant effect on N concentration in plant organs and the total rate of N taken up by the plant was 574 kg/ha. In the second year, N treatments influenced the rate of N uptake from the soil and the rate of N taken up at 0 and 240 kg/ha N fertilizer levels were 186 and 351 kg/ha, respectively.M. HosseinpourA.R. PaknejadA. NaderiR. EslamizadehV. UosefabadiH. Sharifi Sugar Beet Seed Institute articleautumn sugar beetbiomassnitrogenquantitative and qualitative yieldAgricultureSAgriculture (General)S1-972ENFAMajallah-i Chughundar-i Qand, Vol 29, Iss 1, Pp 17-26 (2013)
institution	DOAJ
collection	DOAJ
language	EN FA
topic	autumn sugar beet biomass nitrogen quantitative and qualitative yield Agriculture S Agriculture (General) S1-972
spellingShingle	autumn sugar beet biomass nitrogen quantitative and qualitative yield Agriculture S Agriculture (General) S1-972 M. Hosseinpour A.R. Paknejad A. Naderi R. Eslamizadeh V. Uosefabadi H. Sharifi Effect of nitrogen rates on growth characteristics, yield and quality of autumn- sown sugar beet
description	In order to evaluate the effect of different N rates on yield components, the proportions of each part of the sugar beet plant such as leaf number, leaf area index, canopy expansion rate, and N uptake to total dry matter, were evaluated in autumn planting of 2004-2005 at Safiabad Agricultural Research Center, Dezful, Iran. Five rates of N fertilizer including 0, 60, 120, 180 and 240 kg/ha and two monogerm cultivars Shirin and Rasoul were evaluated in factorial experiment based on randomized complete block design with four replications. In terms of quantitative and qualitative characteristics, significant differences were observed between two years. In the first year of the experiment, N level had no significant effect on root yield, and both cultivars were placed in one group (average root yield of 93 t/ha), however, sugar percentage was influenced and the maximum value (13.7%) achieved in zero N rate. In the second year, root yield was influenced significantly by N rate and the maximum yield (80.9 t/ha) was achieved at 240 kg/ha N treatment, while sugar percentage was not influenced. In both years, no significant difference was observed among culti-vars for quantitative and qualitative traits. With further N application, the proportion of total biomass increased in petiole and crown and decreased in root, with no influence on leaf dry matter. N rates showed no significant difference in terms of leaf num-ber, leaf area index and complete canopy expansion in the first year of the experiment, whereas, in the second year, significant differences were observed among the treatments, so that increased N rate resulted in increaesed leaf number, leaf area index and the rate of complete canopy expansion. N treatments in the first year had no significant effect on N concentration in plant organs and the total rate of N taken up by the plant was 574 kg/ha. In the second year, N treatments influenced the rate of N uptake from the soil and the rate of N taken up at 0 and 240 kg/ha N fertilizer levels were 186 and 351 kg/ha, respectively.
format	article
author	M. Hosseinpour A.R. Paknejad A. Naderi R. Eslamizadeh V. Uosefabadi H. Sharifi
author_facet	M. Hosseinpour A.R. Paknejad A. Naderi R. Eslamizadeh V. Uosefabadi H. Sharifi
author_sort	M. Hosseinpour
title	Effect of nitrogen rates on growth characteristics, yield and quality of autumn- sown sugar beet
title_short	Effect of nitrogen rates on growth characteristics, yield and quality of autumn- sown sugar beet
title_full	Effect of nitrogen rates on growth characteristics, yield and quality of autumn- sown sugar beet
title_fullStr	Effect of nitrogen rates on growth characteristics, yield and quality of autumn- sown sugar beet
title_full_unstemmed	Effect of nitrogen rates on growth characteristics, yield and quality of autumn- sown sugar beet
title_sort	effect of nitrogen rates on growth characteristics, yield and quality of autumn- sown sugar beet
publisher	Sugar Beet Seed Institute
publishDate	2013
url	https://doaj.org/article/27826d64793a4bcba4008fa39de37e01
work_keys_str_mv	AT mhosseinpour effectofnitrogenratesongrowthcharacteristicsyieldandqualityofautumnsownsugarbeet AT arpaknejad effectofnitrogenratesongrowthcharacteristicsyieldandqualityofautumnsownsugarbeet AT anaderi effectofnitrogenratesongrowthcharacteristicsyieldandqualityofautumnsownsugarbeet AT reslamizadeh effectofnitrogenratesongrowthcharacteristicsyieldandqualityofautumnsownsugarbeet AT vuosefabadi effectofnitrogenratesongrowthcharacteristicsyieldandqualityofautumnsownsugarbeet AT hsharifi effectofnitrogenratesongrowthcharacteristicsyieldandqualityofautumnsownsugarbeet
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Effect of nitrogen rates on growth characteristics, yield and quality of autumn- sown sugar beet

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