41
7he irrigDtion regiPes Zere obserYed to diIIer significDntOy
in ZDter sXSSOy Zith SODnts groZn Zith +,5 shoZed higher
sXSSOy (1.3 liter per plant daily) ZhereDs SODnts groZn Zith
0,5 Dt Oiter Ser SODnt dDiOy Dnd /,5 Dt Oiter Ser SODnt
dDiOy (See Figure One)
7he tests DOso shoZed thDt the ZDter Xse eIficiency ZDs
highOy DIIected by irrigDtion regiPes Ds SODnts groZn Zith
/,5 eYidenced higher :8( Dt grDPs Ser Oiter ZhiOe
SODnts groZn Zith 0,5 Zere chDrDcterized by OoZer YDOXes
Dt grDPs Ser Oiter Dnd /,5 by eYen Oess Dt grDPs
Ser Oiter
Discussion
5esXOts shoZed thDt the OoZ irrigDtion regiPe ZDs Pore
eIIectiYe Ior soiOOess cXOtXre cXOtiYDted roses Ds it ZDs
obserYed there Zere no diIIerences on ÁoZer yieOd Dnd
TXDOity coPSDred to PediXP Dnd high irrigDtion regiPes
Zith D OoZer ZDter sXSSOy Dnd higher ZDter Xse eIficiency
Xnder the OoZ irrigDtion regiPe
7hese oXtcoPes confirP SreYioXs findings in Zhich
diIIerent irrigDtion controO Pethods disSODyed D siPiODr yieOd
Ior cXOtiYDtion oI cXt roses throXgh D series oI diIIerent
ZDter sXSSOies
7he resXOts IroP this triDO SDrtiDOOy Dgree Zith SreYioXs
reseDrch Zhich cODiP thDt the totDO nXPber oI rose stePs
decreDsed significDntOy in ZDter stressed SODnts eYen
thoXgh the nXPber oI e[trD TXDOity stePs ZDs not DIIected
Ds ZDs the PeDn Oength Dnd Zeight oI the ÁoZer stePs
'iIIerences in ZDter Xse eIficiency DPong the three
irrigDtion regiPes &orroborDte SreYioXs reseDrch findings
Zhich cODiP thDt roses groZn Xnder D redXced ZDter
sXSSOy shoZed higher ZDter Xse eIficiency ZhiOe SODnts
irrigDted Zith ODrger ZDter TXDntities Zere chDrDcterized by
OoZer YDOXes
/oZ irrigDtion regiPes DSSeDr to be the Post eIficient
PeDns Ior oSerDting D OoZ inSXt greenhoXse PDnDgePent
Ior rose SrodXction in the soXth 0editerrDneDn DreD
SroYiding both ZDter Dnd energy sDYing Zith redXcing
groXnd SoOOXtion Dnd SrodXction costs
$n irrigDtion regiPe bDsed on D high OeYeO oI DccXPXODted
rDdiDtion DOigned Zith D redXced ZDter deOiYery PDy be Dn
eIficient soOXtion Ior D sXstDinDbOe irrigDtion strDtegy IroP
Dn enYironPentDO Ds ZeOO econoPic Soint oI YieZ ■