TY  - JOUR 
T1  - Floral biology and breeding system of three Ipomoea weeds
JO  - Planta Daninha
A1  - Maimoni-Rodella, R.C.S.
A1  - Yanagizawa, Y.A.N.P.
SN  - 0100-8358
UL  - 10.1590/S0100-83582007000100004
VL  - 25 
Y1  - 2007
PB  - Brasil 
ER  -