8 INHERITANCE OF SOME CHARACTERS IN WHEAT. 



were white wheats with relatively poor straw. Later, a fifth cross, 

 with the same felted parent, was made at Pusa and the second genera- 

 tion was raised in 1911-12. The five crosses, in each of which the 

 reciprocal was made, were as follows : — 



1. Punjab Type 9 (ft) x Punjab Type 16. 



2. Punjab Type 9 (/3) x Mozaffarnagar white. 



3. Punjab Type 9 (/}) x Punjab Type 25. 



4. Punjab Type 9 (y) x Punjab Type 13. 



5. Punjab Type 9 (u) x Line H II 4 . 



"i /3 y, denote similar pure lines from Punjab Type 9. 



In all these cases the F, was intermediate and in the second 

 generation the ratio of felted to smooth was 15 : 1. The felted plants 

 formed a series and there appeared to be every possible gradation 

 between plants like the felted and smooth parents. All that could be 

 done was to group the plants round arbitrary standards, but many 

 cases arose where a plant could, with equal justice, be placed 

 in either of two groups. The ratios, felted to smooth, obtained 

 in the second generation of these crosses are given in the following 

 table : — 



Table I. 



The F 2 generation of crosses between complex felted and 

 smooth parents. 



~ No. of c ii. j o .u Ratio felted to 



Cross. , . teted. bmooth. „„„„,, 



plants. smooth. 



Punjab Type 9 ( rt ) <j> x H II 4 ^ (1) 



(*) 



(3) 



H II 4 ^ x Pun J ab T yP e 9 (a) <$ W 



(5) 



Total 

 Punjab Type 9(/3) 5 x Punjab Type 16 j (a) 



W 

 Punjab Type 9(/3) <j> x Moz. White j (a) 



(ft) 

 Punjab Type 9(0) <j> x Punjab Type 25 j (a) 



«>) 

 Punjab Type 9(y) £ x Punjab Type 13 j 



Total of all crosses with Type 9 5,727 5,374 353 15'2 : 1 



Expectation 5,366 35S 



a and b denote the numbers obtained by different observers 



