000			01130nam a2200193Ia 4500
008			220216s9999 xx 000 0 und d
100			_aCuco S M
245		0	_aMegasporogenesis and microsporogenesis in the rubber tree (Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell.-Arg)
260			_bBrazilian Journal of Genetics _c1995
300			_a429-434
500			_aSource Year: 1996
520			_aMale and female gametogenesis in Hevea brasiliensis were studied to verify the possible occurrence of meiotic irregularities that could explain the low fruit set observed in this plant. Histological sections were made of floral buds of 13 clones (GT711, AVROS1328, RRIM526, RRIM600, PR107, IAN2652, IAN2813, Fx25, PB86, IAC1, IAC2, Tjir 1 and Tjir 16). Mega- and micro-sporogenesis were normal in all the materials, and no irregularities were detected. Meiosis resulted in binucleate pollen grains and normal octanucleate embryo sacs. Each phase of the cycle is discussed.
650			_aHevea brasiliensis
650			_aMegasporogenesis
650			_aMicrosporogenesis
700			_aBandel G
856			_uPBA
942			_cJS
999			_c62816 _d62816