Isoflavone content in red clover (Trifolium pratense L.) as related to nitrogen and phosphorus application rate

Red clover (Trifoliumpratense L.) as a dietary supplement is currently used to treat menopausal symptoms because of its high concentrations of mildly estrogenic isoflavone. The application rate of N and P fertilizer has a huge influence on the isoflavone content (IC) in red clover. Trifolium pratens...

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Autores principales:	Du,Wenhua, Tian,Xinhui, Yue,Yan, Lu,Juan
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2013
Materias:	Fertilization rate growth stage isoflavone content Minshan red clover
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000400007
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spelling	oai:scielo:S0718-583920130004000072018-10-02Isoflavone content in red clover (Trifolium pratense L.) as related to nitrogen and phosphorus application rateDu,WenhuaTian,XinhuiYue,YanLu,Juan Fertilization rate growth stage isoflavone content Minshan red clover Red clover (Trifoliumpratense L.) as a dietary supplement is currently used to treat menopausal symptoms because of its high concentrations of mildly estrogenic isoflavone. The application rate of N and P fertilizer has a huge influence on the isoflavone content (IC) in red clover. Trifolium pratense ’Minshan’ is a unique plant resource in the alpine pasture region of northwest China. It plays a very important role in livestock production and the pharmaceutical industry because of its high nutritional value and IC. To date, little information exists on the selection of optimal N and P application rates to maximize the IC in red clover. Therefore, a 3-yr study was conducted to define the optimum N and P application rate to achieve a high IC in ’Minshan’. The results showed that topdressing 50 kg N ha-1 yr-1 with 52-105 kg P ha-1 yr-1 could produce a high level of IC at the branching, flower bud, early flowering, full flowering, pod setting, and mature stages in red clover. Second-year crops produced higher IC than did third-year crops. The IC was highest during the vegetative growing period and started to decline following the reproductive development of the plant until the seeds matured.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.73 n.4 20132013-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000400007en10.4067/S0718-58392013000400007
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Fertilization rate growth stage isoflavone content Minshan red clover
spellingShingle	Fertilization rate growth stage isoflavone content Minshan red clover Du,Wenhua Tian,Xinhui Yue,Yan Lu,Juan Isoflavone content in red clover (Trifolium pratense L.) as related to nitrogen and phosphorus application rate
description	Red clover (Trifoliumpratense L.) as a dietary supplement is currently used to treat menopausal symptoms because of its high concentrations of mildly estrogenic isoflavone. The application rate of N and P fertilizer has a huge influence on the isoflavone content (IC) in red clover. Trifolium pratense ’Minshan’ is a unique plant resource in the alpine pasture region of northwest China. It plays a very important role in livestock production and the pharmaceutical industry because of its high nutritional value and IC. To date, little information exists on the selection of optimal N and P application rates to maximize the IC in red clover. Therefore, a 3-yr study was conducted to define the optimum N and P application rate to achieve a high IC in ’Minshan’. The results showed that topdressing 50 kg N ha-1 yr-1 with 52-105 kg P ha-1 yr-1 could produce a high level of IC at the branching, flower bud, early flowering, full flowering, pod setting, and mature stages in red clover. Second-year crops produced higher IC than did third-year crops. The IC was highest during the vegetative growing period and started to decline following the reproductive development of the plant until the seeds matured.
author	Du,Wenhua Tian,Xinhui Yue,Yan Lu,Juan
author_facet	Du,Wenhua Tian,Xinhui Yue,Yan Lu,Juan
author_sort	Du,Wenhua
title	Isoflavone content in red clover (Trifolium pratense L.) as related to nitrogen and phosphorus application rate
title_short	Isoflavone content in red clover (Trifolium pratense L.) as related to nitrogen and phosphorus application rate
title_full	Isoflavone content in red clover (Trifolium pratense L.) as related to nitrogen and phosphorus application rate
title_fullStr	Isoflavone content in red clover (Trifolium pratense L.) as related to nitrogen and phosphorus application rate
title_full_unstemmed	Isoflavone content in red clover (Trifolium pratense L.) as related to nitrogen and phosphorus application rate
title_sort	isoflavone content in red clover (trifolium pratense l.) as related to nitrogen and phosphorus application rate
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392013000400007
work_keys_str_mv	AT duwenhua isoflavonecontentinredclovertrifoliumpratenselasrelatedtonitrogenandphosphorusapplicationrate AT tianxinhui isoflavonecontentinredclovertrifoliumpratenselasrelatedtonitrogenandphosphorusapplicationrate AT yueyan isoflavonecontentinredclovertrifoliumpratenselasrelatedtonitrogenandphosphorusapplicationrate AT lujuan isoflavonecontentinredclovertrifoliumpratenselasrelatedtonitrogenandphosphorusapplicationrate
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Isoflavone content in red clover (Trifolium pratense L.) as related to nitrogen and phosphorus application rate

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