
TY  - JOUR
A1  - Pritchard, AJ 
T1  - The cytology and reproduction of <I>Paspalum yaguaronense</I> (Henr)
JF  - Australian Journal of Agricultural Research
JO  - Aust. J.  Agric. Res.
Y1  - 1962
VL  - 13
IS  - 2
SP  - 206
EP  - 211
KW  - 
UR  - https://doi.org/10.1071/AR9620206 
N2  - A high degree of sterility occurs in an introduction of Paspalum yaguaronense. Cytological and embryological studies have shown that the chromosome number is 2n = 20, and that the embryo sac develops normally. Sterility is due to an incompatibility system which prevents the growth of pollen tubes into the style. A self-fertile selection has been made in which fertilization occurs 4 hr after anthesis. Fertility probably arose by mutation of an incompatibility allele. The sterile plants will readily produce seed when pollinated by clones of the fertile plant. Because P. yaguaronense possesses a sexual method of reproduction and an incompatibility system, it could be useful in future breeding work within the genus Paspalum, which contains a number of apomictic species. 
ER  -

