776 H. E. KNow.ton 
until after twenty-four hours. There is no evidence as to the exact time 
at which the loss of fertilizing power occurred. 
TABLE 19. Corn Potten Storep at DIFFERENT TEMPERATURES -AT A HUMIDITY OF 
5-10 Per Centr. 1915 
Pollen stored at 
0° C. 102°C 20RC: 30° C. 
Length of 
storage 
Hats || Pertili- | P8® "| Poreiti- | PSt® | Percilen |e a mere 
reaeh Al zation | P Has zation vee zation ae a zation 
Hours Number |Per cent | Number |Per cent | Number | Per cent| Number | Per cent 
Gee: 4 2 45 85 9 
I Deere earNcaee 3 0 2 60 2 Yee Weenie S| Sc Aa eee 
AY AeW Ober se 4 SUE He seener QO ah sect coal he eae Dis 45 
DAM Rban its say: 2 0 5 49 4 36 2 3 
1) rea Shuts een 3 0 i 0 2 0 1 0 
BY Ser sR Vm IR ae al ead sea es CRA LR Ta Ee 2 10 Teas Naess (|| 1b “s eka 
ASSET ae mea cee a yn Mi aie yl Wer eden 2 3 0 6 OCS eee h 
{iy Oe aes gehts Se Anes a EOIN ae ca 1 0 1 Oman Perea a Sol grail oaks 
eae gaan i Be Sen SoH Lea 3 i een a ee Is ood aida 
77a Bis ia le le eee al aces ea 1 TEN a Soe a Qe i Oo) Re 
er 
* Pollen adhering. 
TABLE 20. Corn Pouien StoreD at 80-90 PER Centr Humripity at TEMPERATURES OF 
20° C. anp 30°C. 1915 
Ears ~ Go ae 
hk a pollinated Fertilization 
Hours Number Per cent 
2 24 
24 2 67 
Pollen stored at 20° C. 30 2, 82 
36 Dy 5 
48 3 23 
54 1 6 
6 1 98 
MMMM Rees 5 | sho ooo edo we 
Pollen stored at 30° C. 24* 3 (0) 
30* 2 0 
* Pollen adhering. 
