124 



BOTANICAL GAZETTE 



[FEBRUARY 



TABLE I 

 Records of self-compatibility for families of Brassicapekinensis, of B.c hi nensis, 



AND OF HYBRIDS BETWEEN THESE SPECIES 



Ancestry, generation, and self-compatibility of parent 



Brassica pekinensis 



P series i, seeds of S.P.I. 



seeds of S.P.I. 



seeds of S.P.I. 



seeds of S.P.I. 



seeds of S.P.I. 

 P series 34, seeds of S.P.I. 

 P series 15, seeds of S.P.I. 



P series 

 P series 

 P series 

 P series 



no. 44892 

 no. 44935 

 no. 44291 

 no. 44312 

 no. 44292 

 no. 38783 

 no. 45187 



Brassica chinensis 

 P series 8 



F, series 8-1, parent strongly self-compatible 

 Fz series 8-5, parent medium self-compatible 

 F x series 8-6, parent strongly self-compatible 

 F! series 8-15, parent strongly self-compatible 



series 8-1-13, parent strongly self-compatible 



series 8-5-32, parent medium self-compatible .... 

 series 8-5-39, parent medium self-compatible .... 

 series 8-15-5, parent strongly self-compatible . . . . 

 series 8-1, no. 39X8-1 no. 32 (medium X medium) 

 series 8-5, no. 39X8-5 no. 41 (medium X self-sterile) 



F s 



F 



F 

 F 

 F 

 F, 



F 2 series 8-5, no. 30X8-5 no. 17 (both self-sterile 



F 2 series 8-5, no. 27X8-5 no. 32 (self-sterile X medium) 



Brassica chinensisXB. pekinensis 



Fx 8-5, no. 23X2 no. 3 (both self- incompatible) . 

 F, 8-5, no. 19X3 no. 16 (both self-incompatible) 

 F, 8-5, no. 18X3-1 no. 63 (medium X self-sterile) 



Record for progeny 



7 



So 



Fi series 1-2, parent strongly self-compatible 

 Fi series 2-1, parent strongly self-compatible 

 Fi series 3-1, parent medium self-compatible 



Fi series 1-2-9, parent strongly self-compatible 36 



46 

 60 



19 



16 



£~ 



114 

 61 



F 2 series 1-2-18, parent strongly self-compatible 

 F 2 series 1-2-29, parent strongly self-compatible 

 F 2 series 1-2-38, parent strongly self-compatible 

 F 2 series 3-1-1, parent strongly self-compatible 

 F 2 series 3-1-9, parent strongly self-compatible 

 F 2 series 3-1-32, parent strongly self-compatible 18 



19 



in 

 48 



57 

 122 



19 



34 



5° 



tn a 



H 



- - 



s.s 

 z 



4- 1 

 4i 

 28 



40 



7 



7 



7 



3° 



23 



15 



15 



7 



19 



Self-compatible 



4^ 



14 



