PRAKTIKUM FISIOLOGI TUMBUHAN PENGARUH KEKAHATAN UNSUR ESENSIAL TERHADAP PERTUMBUHAN TANAMAN
Oleh :
Kelas D4/2 1. 2. 3. 4.
Emilia Anjar Pr Prastiwi Aina Dzulqi Aulia Farah Annisa Nu Nurani Intan Na!"ah Rah#a
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PROGRAM STUDI S1 BIOLOGI DEPARTEMEN BIOLOGI FAKULT AKULTAS SAINS DAN TEKNOLOGI TEKN OLOGI UNI)ERSITAS AIRLANGGA 2$1%
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DASAR TEORI
$uatu unsur )imia tertentu "ian**a+ sea*ai suatu nutrien essensial ji)a nutrien terseut "i+erlu)an a*ar suatu tumuhan "a+at tumuh "ari seuah iji "an men#elesai)an si)lus )hi"u+ann#a' men*hasil)an *enerasi iji #an* aru! &ntu) menentu)an unsur,unsur mineral mana mana #an* #an* etul, etul,etu etull nutrie nutrien n esensial esensial "a+at "a+at "i*una "i*una)an )an met-"e met-"e #an* #an* "i)ena "i)enall sea*a sea*aii u"i"a#a hi"r-+-ni) .eee' am+ell,(itell' am+ell,(itell' 2003! (enurut $alisur# an" -ss .1' suatu unsur "i)ata)an essensial a*i tumuhan )arena 5unsin#a "i*-l-n*)an )e "alam "ua )el-m+-) #aitu #an* er+eran "alam stru)tur suatu suatu sen#aw sen#awaa #an* #an* +entin +entin* * #an* #an* men*a) men*a)ti5) ti5)an an enzim! enzim! Kar-n Kar-n'' -)si*e -)si*en n "an h#"rh#"r-*en *en meru+a)an unsur +alin* "i)enal #an* mem+un#ai )e"ua 5 unsi terseut' "emi)ian +ula "en*an nitr-*en "an eleran* "itemu)an "alam enzim! $emua unsur #an* larut' ai) #an* eas mau+un #an* teri)at "alam stru)tur essensial mem+un#ai 5un*si lain "en*an i)ut menentu)an +-tensial -sm-ti)! Kriteria unsure esensial #aitu 1 a+aila elemen "iamil "ari me"ia tanaman' ma)a tanaman ti"a) a)an "a+at melen*)a+i +ertumuhan 7e*etati5 atau si)lus hi"u+n#a! 2 a+aila 5un*si 5un*si i-)im i-)imian ian#a #a ti"a) ti"a) "a+at "a+at "i*ant "i*antii -leh -leh elemen elemen lainn# lainn#a! a! 3 a+ail a+ailaa elemen elemen terse terseut ut meru+a)an )-m+-nen #an* "i+erlu)an "alam +ementu)an meta-lit #an* es ensial.A*ustina' 10! umuhan memerlu)an hara mineral untu) +ertumuhan "an +er)eman*an "irin#a! &nsur &nsur,un ,unsur sur hara hara minera minerall teruta terutama ma zat -r*an -r*ani) i) "i+er"i+er-leh leh tumuh tumuhan an "ari "ari "alam "alam tuuh tuuh .me"ium tumuhn#a #an* masu) melalui a)ar ersama air )e "alam tumuhan! .De7lin' 19! &nsur &nsur hara hara memili memili)i )i 5un*si 5un*si #an* #an* ere" ere"aa "alam "alam tuuh tuuh tumuh tumuhan! an! Dalam Dalam jarin* jarin*an an tumuh tumuhan an nitr-* nitr-*en en meru+a meru+a)an )an )-m+)-m+-nen nen +en#us +en#usun un "ari "ari an#a) an#a) sen#awa sen#awa essensi essensial al a*i a*i tumuhan' misaln#a asam amin-! Karena setia+ m-le)ul +r-tein tersusun "ari asam,asam aminamin- "an setia+ setia+ enzim enzim a"alah a"alah +r-tei +r-tein' n' ma)a ma)a nitr-* nitr-*en en ju*a ju*a meru+a meru+a)an )an unsur unsur +en#u +en#usun sun +r-tein "an enzim! $elain itu nitr-*en ju*a ter)an"un* "alam )-r-5il' h-rm-ne' sit-)inin s it-)inin "an au)sin .:a)itan' 13! &nsu &nsurr #an* #an* "i+e "i+erl rlu) u)an an -leh -leh tum tumuh uhan an "ala "alam m juml jumlah ah #an* #an* relat relati5 i5 esa esarr "ise "iseut ut ma)r-n ma)r-nutr utrien ien!! A"a semil semilan an ma)r-n ma)r-nutr utrien ien'' #an* #an* meli+u meli+uti ti enam enam unsur unsur +en#us +en#usun un utama utama sen#awa -r*ani) )ar-n' -)si*en' h#"r-*en' nitr-*en' sul5ur "an 5-s5-r! i*a ma)r-nutrien lainn#a a"alah )alium' )alsium' "an ma*nesium .eee' am+ell,(itell' 2003! &nsur
#an* "i+erlu)
tumuhan tumuhan "alam jumlah jumlah #an* san*at se"i)it "iseut "iseut
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sit-) sit-)rr-m' m' +r-t +r-tei ein n #an* #an* er5u er5un* n*si si "ala "alam m ranta rantaii tran trans5 s5-r -r ele eletrtr-n n "ari "ari )l-r )l-r-+ -+las las "an "an mit-)-n"ria! ;al ini )arena mi)r-nutrien umumn#a memain)an +eranan )ataliti) #an* han#a "iutu "iutuh)a h)an n -leh -leh tumuh tumuhan an "alam "alam jumlah jumlah san*at san*at )eil! )eil! Keutu Keutuhan han a)an a)an m-li" m-li"enu enum' m' misaln#a' misaln#a' san*at se"i)it sehin**a unsur lan*)a ini han#a ter"a+at ter"a+at satu at-m untu) setia+ 16 juta at-m hi"r-*en "alam ahan tumuhan #an* telah "i)erin*)an! A)an teta+i )e)uran*an ."e5i ."e5isi sien ensi si m-l# m-l#" "en enum um atau atau mi)r mi)r-n -nut utri rien en lain lainn# n#aa "a+a "a+att mele melemah mah)a )an n atau atau ah) ah)an an memati)an tumuhan itu .eee' am+ell,(itell' 2003! Keleih Keleihan an "an )e)ura )e)uran*a n*an n unsur unsur hara hara #an* #an* ter"a+a ter"a+att "i "alam "alam tanah tanah a)an a)an "a+at "a+at mm+en*aruhi )ehi"u+an tumuhan #an* a"a "iatasn#a!
2 ' hi"r-*en "iamil "alam entu) air .;2>' se"an*)an -)si*en selain "alam entu) > 2 "an ;2> ju*a "a+at "iamil "alam entu) >2' mau+ mau+un un sen#a sen#awa wa lainn lainn#a #a!! &nsu &nsurr ' ;' "an "an > meru meru+a +a)a )an n +en# +en#us usun un utam utamaa ma)r-m-le)ul' se+erti? )ar-hi"rat' li+i"' +r-tein "an asam nu)leat! $etelah ' ;' "an >' nitr-*en meru+a)an unsur hara ma)r- ter+entin*! Nitr-*en meru+a)an )-m+-nen "ari asam,
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menja"i am-nia .N;3! 3, .=ama .=amarr 1! 1! umuha umuhan n "a+at "a+at men*am men*amil il nitr-* nitr-*en en "alam "alam entu) entu) i-n N;4 mau+un N> 3,! =ejala "e5isiensi mineral ti"a) saja er*antun* +a"a +eranan nutrient terseut "alam tumuhan a)an teta+i ju*a +a"a m-ilitasn#a "i "alam tumuhan terseut! Bi)a suatu nutrient er*era) a*a) eas "ari satu a*ian tumuhan )e a*ian #an* lain' *ejala "e5isiensi "e5is iensi +ertama )ali a)an munul +a"a -r*an #an* leih tua! ;al ini )arena jarin*an,jarin*an mu"a #an* masih tumuh memili)i "a#a tari) #an* leih )uat "ian"in*)an "en*an jarin*an tua untu) menari) nutrient #an* jumlahn#a er)uran* .Dwij-se+utr-' 188!
TU*UAN , &ntu) &ntu) men*et men*etahu ahuii *ejala *ejala "e5isien "e5isiensi si unsur unsur hara hara terha"a+ terha"a+ +ertu +ertumu muhan han tanam tanaman an , &ntu) &ntu) men*e men*etah tahui ui unsur unsur,un ,unsur sur hara hara #an* #an* "iutu "iutuh)a h)an n -leh tana tanaman man
ALAT DAN BAHAN
Alat ? , , , ,
10 -t-l selai Kert Kertas as )ar )ar-n -n/a /alu lumi mini nium um 5-il 5-il Ka+as =aus erluan*
LANGKAH KER*A 1! (en#e" (en#e"ia) ia)an an 10 10 -t-t-ll selai selai ersih ersih 2! (ela+isi (ela+isi masin*,masin masin*,masin* * -t-l "en*an "en*an )ertas )ertas )ar-n )ar-n hitam "
isi -t-l -t-l "en*an
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! $ela $elanj njut utn# n#aa memi memili lih h 3 )ea )eam mah ah #an* #an* a)an a)an "i*u "i*una na)a )an n untu untu) ) masi masin* n*,m ,mas asin in* * +erla)uan #an* memili)i +ertumuhan #an* ai)' men*u)ur +anjan* atan*' +anjan* a)ar' +anjan* "aun' "an lear "aun "ari )eti*a )eamah lalu "irata,rata 6! (ema (emasu su)) ))an an )eam )eama ah h "en* "en*an an hati hati,h ,hat atii +a"a +a"a *au *auss #an* #an* telah telah "ilu "ilua an* n*ii "an "an men#um men#umat at sisa luna* luna* "en*an "en*an )a+as! )a+as! (ela)u) (ela)u)an an aerasi aerasi setia+ setia+ harin# harin#a! a! Diamat Diamatii +anjan* atan*' +anjan* a)ar' a)ar' +anjan* "aun' jumlah "aun' "an lear "aun! 9! Pen*amatan Pen*amatan "ila)u)an "ila)u)an 3 hari hari se)ali se)ali selama selama 2 min**u min**u
HASIL PENGAMATAN
Dila)u)an 3 hari se)ali "alam 2 min**u N-!
&nsur hara .)e)uran*an
;ari )e,
Panjan* a)ar .m
Panjan* atan* .m
Panjan* "aun .m
Bumlah "aun
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PEMBAHASAN
Pra)ti)um )ali ini ertujuan untu) men*etahui *ejala "e5isiensi unsur hara terha"a+ +ertumuhan tanaman "an men*etahui unsur,unsur hara #an* "iutuh)an -leh tanaman! &ntu) menjawa tujuan terseut ma)a "ila)u)an +er-aan men**una)an )eamah )aan*
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+anjan* +a"a -t-l +ertama ertamah si*ni5i)an se"an*)an +enamahan u)uran lainn#a ti"a) terlalu si*ni5i)an! <-t-l )e"ua erisi Fel 3! K-m+-sisi "ari Fel 3 ti"a) ter"a+at larutan FeEDA! ;asil #an* "i"a+at +a"a -t-l )e"ua a"alah terja"i +enamahan u)uran +anjan* "aun' lear "aun' +anjan* atan* "an +anjan* a)ar! Penamahan si*ni5i)an terlihat +a"a +enamahan u)uran +anjan* "aun "an "an +anjan* atan*! Pen*amatan +a"a -t-l )e"ua terja"i 4 )ali )arena +a"a +en*amatan tera)hir )eamah mati! <-t-l )eti*a erisi airan a "i mana +a"a )-m+-sisi larutan terseut ti"a) ter"a+at a.N>32 "an Fel3! Pa"a -t-l )eti*a terja"i +eruahan u)uran a)ar' "aun mau+un atan* ai) "ari se*i +anjan* mau+un lear teta+i ti"a) a"a #an* terlihat men-l-)! <-t-l )eem+at erisi larutan $! K-m+-sisi +a"a larutan $ ti"a) ter"a+at larutan (*$>4 "an Fel 3! ;asil #an* "i"a+at terja"i +eruahan seara si*ni5i)an +a"a +ertamahan u)uran +anjan* a)ar "an "aun! <-t-l )elima erisi larutan (*! K-m+-sisi +a"a larutan (* ti"a) ter"a+at larutan (*$>4 "an Fel3! ;asil #an* "i"a+at a"alah terja"i +eruahan si*ni5i)an +a"a +ertamahan +anjan* a)ar se"an*)an +a"a +enamahan u)uran lainnn#a la innn#a ti"a) terja"i +ertamahan u)uran #an* si*ni5i)an! <-t-l )eenam erisi larutan K! K-m+-sisi +a"a larutan K ti"a) ter"a+at larutan KN>3' K;2P>4 "an Fel 3! ;asil #an* "i"a+at a"alah terja"i +eruahan si*ni5i)an +a"a +ertamahan +anjan* atan* se"an* +a"a a*ian a*ian lain ti"a) terlalu men-l-)! <-t-l )etujuh erisi larutan N "i mana )-m+-sisi larutan N ti"a) ter"a+at larutan a.N>32' KN> 3 "an Fel 3! Pa"a -t-l )etujuh hasil #an* "i"a+at menurun ti"a) ertamah hal ini "i)arena)an +ertumuhn sema)in men*er"il! <-t-l )e"ela+an erisi larutan P "i mana mana )-m+)-m+-sisi sisi +a"a +a"a larutan larutan ini ti"a) ti"a) ter"a+ ter"a+at at larutan larutan K;2P>4 "an Fel Fel3! Pa"a Pa"a -t-t-ll )e"e )e"ela la+a +an n +erta +ertam mah ahan an u)ur u)uran an han# han#aa terja terja"i "i +a"a +a"a +erta +ertam mah ahan an +anj +anjan an* * ata atan* n* saja saja se"an*)an u)uran #an* lain memili)i u)uran #an* sama "ari awal! <-t-l )esemilan erisi larutan Fe "i mana )-m+-sisi larutan ini ti"a) ter"a+at larutan Fel 3 "an FeEDA! Pa"a -t-l )esemilan terja"i +ertamahan u)uran +a"a +anjan* a)ar' +anjan* atan*' "an +anjan*
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&nsur hara #an* "iutuh)an antara lain unsur ma)r- .essensial "iutuh)an "alam jumlah #an* an#a) se+erti ,N' ,P' ,P' ,K' ,a' ,$' "an (*! &nsur #an* "iutuh)an "alam jumlah se"i)it se+erti ,Fe' ,u' "an ,(n!
DAFTAR PUSTAKA
A*ustina! 10! Nutrisi 10! Nutrisi Tumbuhan. ine)a i+ta! Ba)arta! Tumbuhan. ine)a an"