Mesdaghi, M.

Moayed, S. Houshmand

Sadeghipour, H. R.

English

University of Kentucky

University of Kentucky UKnowledge International Grassland Congress Proceedings 21st International Grassland Congress / 8th International Rangeland Congress An Investigation on Total Nonstructural Carbohydrate Trends in Three Agropyron Grasses of Golestan National Park in Northern Iran S. Houshmand Moayed University of Agricultural Sciences, Iran M. Mesdaghi University of Agricultural Sciences, Iran H. R. Sadeghipour University of Agricultural Sciences, Iran Follow this and additional works at: https://uknowledge.uky.edu/igc  Part of the Plant Sciences Commons, and the Soil Science Commons This document is available at https://uknowledge.uky.edu/igc/21/1-2/10 The 21st International Grassland Congress / 8th International Rangeland Congress took place in Hohhot, China from June 29 through July 5, 2008. Proceedings edited by Organizing Committee of 2008 IGC/IRC Conference Published by Guangdong People's Publishing House This Event is brought to you for free and open access by the Plant and Soil Sciences at UKnowledge. It has been accepted for inclusion in International Grassland Congress Proceedings by an authorized administrator of UKnowledge. For more information, please contact UKnowledge@lsv.uky.edu. 　 Multifunctional Grasslands in a Changing World 　 Volume Ⅰ 　 瞯 ]59　 瞯Grasslands/Rangelands Resources and Ecology ——— Ecology of Grasslands/RangelandsAn investigation on total nonstructural carbohydrate trends in three Agropyron grasses ofGolestan National Park in northern IranS . Houshmand Moayed , M . Mesdaghi , and H . R . SadeghipourDepartment o f Range Management , College o f Natural Resources , University o f A gricultural Sciences , Gorgan , I ran .E‐mail :srhoushmand＠ yahoo .comKey words : A gropy ron spp . ,to tal nonstructural carbohydrate , phenological stagesIntroduction We examine total nonstructural carbohydrate ( TNC) concentrations in three grasses within the genus A gropy ron :of A gropy ron cristatum ( L .) Gaertner , A gropy ron trichophorum ( Link) Richt . , A gropy ron intermedium ( Host ) Barkw .and D .R . Dewey , within Golestan National Park in northern Iran . Our objectives were to (１ ) compare TNC reserves amongroot , crown , and rhizoms and (２) compare TNC concentrations during phenological development .Material and methods Plant materials root , crown , and rhizome were collected throughout grow th of three grasses and weredried at ７０ ℃ for ４８ hours then ground to pass a ３５‐mesh screen . The TNC concentrations were determined colorimetrically .Data of TNC concentrations in the root , crown , and rhizome in different stages were analyzed using ANOVA and completelyrandom design .Figure 1 Total nonstructural carbohydrate concentrations at 8 grow th stages . S tages 1 , 2 , and 3 in ( a) and (b) , 1 and 2 in( c) are vegetative grow th . 4 in (a) and (b) , and 3 in (c) are heads in boot . 5 in (b) , and 4 and 5 in (c) are heads out . 5 in(a) , and 6 in (b) , and (c) are f ull f lowering . 6 in ( a) , and 7 in (b) , and (c) are seed ripening . 7 in ( a) and 8 in (b) ,and (c) are seed dissemination .Results As it is shown in Figure １ . the concentration of TNC are different ( p ＜ ０畅０５ ) in root and rhizome for A gropy ronintermedium . These concentrations are similar for A gropy ron cristatum , but are still significant ( p ＜ ０畅０５) . The concentrationof TNC are even more similar for A gropy ron trichophorum , but are not significant ( p ＞ ０畅０５) .Conclusions In general , seasonal variation of TNC concentrations in storage organs varying among these closely related grasseswith time . Further research will help elucidate grazing intensity and timing that promotes the vigor of these species .ReferencesDaer . T . and E . Willard . ,( １９８１ ) . Total nonstructural carbohydrate trends in blue bunch wheat grass related to grow th andphenology . Range Manage . ３４ : ３７７‐３７９ .Holcheck . J . L . , R . D .Pieper . and C . H . Herbel . ,( ２００５ ) . Range management principle and practice ,５th Edition . PrenticeHall . Newgerssey .Hyder . D . N . and F . A . Sneva . ,( １９５９) . Grow th and carbohydrate trends in crested wheatgrass , Range Manage . １２ : ２７１‐２７６ .~ 400 OJ o, 300 E 0 200 z f- 100 0 Agropyron intermedium Agropyron trichophorum --+-- Ro otTNC .,· ....... - " 2 3 4 ---+-- Root TNC ··· ■ ···R hizomeTNC •. , lt . .• 5 6 7 40 30 20 -~ /'---.. • • •· • CrownTNC .......-- ..._ ~---·¾ '■ ......... 10 0 Stages 2 3 4 5 6 Stages 7 8 Agropyron crista t1 1rn --+-- RootTNC :: l ~ c,-,rnc 20 ■· ·■' -·■ II·· ' Q I I I I I I I I 1 2345678 Stages 

An Investigation on Total Nonstructural Carbohydrate Trends in Three \u3cem\u3eAgropyron\u3c/em\u3e Grasses of Golestan National Park in Northern Iran

https://uknowledge.uky.edu/cgi/viewcontent.cgi?article=2145&amp;context=igc

An Investigation on Total Nonstructural Carbohydrate Trends in Three \u3cem\u3eAgropyron\u3c/em\u3e Grasses of Golestan National Park in Northern Iran

Abstract

Similar works

Full text

Available Versions

University of Kentucky