Vergara - 1976 - Physiological and morphological adaptability of ri

IUHTRCKTLINHTIZ 111-" r1113 RICE CROP I17
Leaf ma: distribution, QIIBL}
Q5 -
O4 - h=60cm
|_= 1e
02 - x=-0|
O
MMRYOKIQ?!)
JLLYI?
9-5 - AUGZ
n=?0m\
o4
L=37
X=-O.l
O2-
0
06
O4
O2 —
O
0.6
0.4
O 2
O
O6
O4 -
O2
O
0 3O 6O 9O O 30 6O 9O
lnclimtion l °l
l. Leaf inclinatiun density fiiiietitm of rice erup (In: ct
ul.. I973).
changes from a nearly ideal type with its upper strata CUITIPUSCd twfereet leaves.
becoming more horizontal with increasing depth. to an inverse lypc.
RADIATION ENVIRONIVIENI IN RICE CANOPY
Radiation environment at a leaf area index L below the top of a rice canopy
etmsists 0f the folluiving components
.1810“)
r
.541» ~ .s..11iI.i m
where fill.) and ,,S,[I.) are respectively the Ll0\\‘t1\\‘in‘{l and tipvnird fluxes (if
total short-wave radiation at a level of I._. 3,, (L) and SAL) are respectively the
direct and diffuse solar-radiation Fluxes reac-hing the level of L. dSLd (L) is the
dmvinvartl flux 0t’ complcmcnlaiy diffuse radiation due t0 scattering 01' light
fluxes (St, and Sd} by plant elements in the leaf layer above the level L, and
HS.._,,(I_) is the upvrard flux ofcomtilelnerltaifv diffuse-mdialioti tlux built in the
leaf layer below the level L.