which causes changes in the ginning percentage. 
MAGANLAL L. PATEL 
97 
The following table shows 
the ginning percentage in several years, and also the number of seeds per 
gramme. 
of figures. 
There is obviously little or no correlation between the two sets 
Strain 
1916-17 
Ginning| Seeds 
percen- 
tage 
44°6 
42°6 
464 
per 
gramme 
18°6 
-18°0 
19°3 
1917-18 1918-19 1919-20 
Ginning| Seeds | Ginning} Seeds | Ginning| Seeds 
per- per per- per- per per 
centage |gramme | centage | gramme) centage | gramme 
42°7 173 45°9 17-2 42°5 15°3 
42°9 18°3 45°4 17°2 46°9 17°2 
46°5 18°4 49°3 18°5 d1°5 185 
5. The seed weight is hereditary. This has already been recognized by 
Balls! for Egyptian cotton, and it is equally the case in the Goghari variety of 
Gossypium herbaceum. 
The foliowing figures for the same strains which we 
have considered under the last heading make this clear in the present case -— 
Strain A26 
Strain B3 
Strain B21 
Strain C22 
Strain E5 
1916-17 
1917-18 
1918-19 
1919-20 
1916-17 
1917-18 
1918-19 
1919-20 
1916-17 
1917-18 
1918-19 
1919-20 
1916-17 
1917-18 
1918-19 
1919-20 
1916-17 
1917-18 
1918-19 
1919-20 
Number of seeds per 10 grm. 
186 
173 
175, 169 and 173 
153 
180 
184, 181, 182 and 183 
179 and 163 
171 
207 
186 
194 and 186 
176 
196 
194,188, 187 and 19¢ 
196 and 193 
189 
193 
184, 185 and 180 
180 and 192 
185 
These figures indicate that the progeny of different plants of the same 
strain grown in the same year give seed whose weight varies very slightly. 
It also shows that despite considerable variations from year to year, 
1 Balls. “The Cotton Plant in Egypt,” London, 1912, page 167, 
