DoRAN: ON THE GERMINATION OF FUNGOUS SPORES 
TABLE I 
323 
Cardinal temperatures and range of temperature for the germination 
of the spores of representative fun 
Author-| | Cardinal Faeaenmina 
ity* | oe | Min. Opt: Max. (Range 
18 Plasmodiophora Brassicae...... | —  |27°-30°C —_— —_— 
20 mopora viticola, conidia . —  |25°-30°C — — 
24° 1P. essa comidia Hoos ret cS — (25°-35°C — — 
22 =| Cystopus candidus, conidia... .. a Os 10°C, [25. © an 
23 (Phytophthora infestans, conidia | 2°-3° C. |12°-13°C. a4 225° G.23 
24 =| Peronospora parasitica, conidia a 8°-12° C.| 29° C. 
25 gti lem clavipes, aeci- | 
Pita t OS AS ee is Se ta CG. 25°C. 17 
25 ticsrkida ribicola, aeciospores | 5° C. mC. 19°C. 14 
4 (Puccinia Phlei-pratensis, ure- 
MEDIOBOOVER 6 pe 18°C. 30° C —_ 
4 |P. coronata, urediniospores... .. —- 18°C. 300 — 
26 | P. coronata, urediniospores Ye — 130°C 23 
7  |P. coronata, urediniospores..... sak 17°-22° C.'35° C. 34 
26 =| P. rubtgo-vera, urediniospores . .| 2° C. — |31°C. 29 
26 =| P. graminis, urediniospores..... °C, — 31°C. 20 
27 =| P. dispersa, urediniospores. . .. . 10°-12° C.'18°-20° C.|25°-27° C.| 17 
25 | P. Antirrhini, urediniospores...| 5° C. ro C. a Bee 5 
28 |P. Sorghi, urediniospores....... ec. 14°C. 25°C ae 
25 Saertegs ribicola, uredinio- 
Rs) ae ae va ib ta: 25°C +7 
25 Uromyces caryophyllinus, ure- 
‘ hes ee OS ra". 29°C 25 
2 oe Trifolit uredinio- 
_- Spores eerste ee — 116°C. 44°C — 
10 Cymbdésorenieee Juni peri-vir- 
inianae, teliospores......... 13 ign SS et: 29°C. 18 
9  G. Juniperi-virginianae, telio- 
BOOED 6 oh ace ierace's + Be 23°-24° C.'29° C. 22 
29 (Puccinia graminis, oribegggges et. oa’ C; as". 14 
18 P. graminis, teliospores........ tobe 20° C. a5-h. 20 
29 _|P. Larici, teliospores......--.-|. ot. — — 
25 | P. Malvacearum, ~en meg asco (eC 6 C. 27 
18 |P. graminis, basidiospores. ..... —  {15*20°C. ~— ~— 
30 easel mgenriam Phicas Pi 22°-27° C — _~ 
31 | Melanconium sp...........+++- —  |23°-27°C =. as 
32 Phyllosticte bashes cea — es oo an or 
we Le ARPMNE,. «ise: °C. — '47°C. : 29 
84 |Alternaria Solani...........-- 1°-3° C. |26°-28° C. 37°-45° C.| 44 
35 re ge — _ |24°-28°C. 34°C. “Gis 
* 
Numbers refer to aa literature nose 
