Wheat Information Service No.22 
Contents
I. Research Notes:
E. OEHLER and M. INGOLD:New cases of male-sterility
and new restorer source in T. aestivum, p.1
T. FUJII:Effect of EMS on germination of einkorn wheat,
p.3
J. W. SCHMIDT and V. A. JOHNSON:Inheritance of the
sphaerococcum effect in tetraploid wheat, p.5
S. SAKAMOTO:An intergenetic hybrid between Eremopyrnm
oriental (LINN.) JAUO. et SPACH. and Aegilops squarrosa LINN.,
p.6
M. D. UPADHYA:Altered potency of chromosome 5B in wheat-caudata
hybrids, p.7
K. TSUNEWAKI:Transfer of v1 gene from common
wheat to emmer wheat, p.10
G. M. HALLORAN:Wheat collecting expedition to Afghanistan,
p.12
G. S. RYAN:Another feasible approach to study the
phylogeny of cultivated hexaploid wheat, p.14
H. RESS and M. R. WALTERS:Nuclear DNA and the evolution
of wheat, p.18
T. MABUCHI and S. MATSUMURA:Radiosensitivity in pollen
grains of Triticum and Aegilops, p.20
S. MATSUMURA and T. FUJII:Radiosensitivity of aged
wheat seeds, p.21
II. News, p.22
K. YAMASHITA:Outline of the Kyoto University Botanical
Expedition to the Caucasus, May - August, 1966, p.26
III. Editorial Remarks
Explanation of the Figure on the cover
A spikelet of Aegilops squarrosa strangulata. S. page 6