Wheat Information Service No.7 Wheat Information Service No.7


Contents

I. Editorial:H. KIHARA:40 years after the discovery of right chromosome numbers of the genus Triticum, p.1

II. Research Notes:K. YAMASHITA and M. OKUDA:X-ray induced mutations in Einkorn wheats II. Pigment analysis, p.3
K. YAMASHITA, Z. KASAI and K. ASADA:Photosynthetic capacity in green and white leaf portions of an X-ray induced mutant " japonica stripe " in Triticum monococcum, p.4
S. MATSUMURA:Effects of temperature and irradiation time upon mutations induced by radiations, p.5
S. MATSUMURA and S. KAWASHIMA:Effect of AET upon radio-sensitivity of wheat seeds, p.7
S. MATSUMURA, M. NEZU and Y. KOSHIBA:Genome analysis of Triticum georgicum, p.7
S. MATSUMURA and T. FUJII:Genetic effect of ionizing radiation in Einkorn wheat, p.8
S. MATSUMURA, T. FUJII and S. KONDO:Effect of X- and Gamma-radiations upon wheat seedlings and their modification due to temperature or polyploidy, p.9
T. FUJII:Crosses between various X-ray induced recessive mutants in wheat, p.10
T. FUJII:Radio-sensitivity in Triticum and Aegilops, p.11
A. T. PUGSLEY:Albino mutation in common wheat, p.12
G. M. Wright:Effect of gibberellic acid on a compactoid wheat, p.12
B. P. PAL, S. M. SIKKA, M. S. SWAMINATHAN and A. T. NATARAJAN:Frequency and types of mutations induced in bread wheat by some physical and chemical mutagens, p.14
T. H. SHEN and T. K. KING:Spring wheat production in Taiwan, p.16
Carl R. HAUN and J. SCHULZ-SCHAEFFER:Establishment of a monosomic series of Yogo winter wheat, p.16
A. MOCHIZUKI and N. SAKURAI:The number of the chloroplasts in the stomatal guard cells of Triticum and Aegilops, p.17
N. KONDO and M. KAMANOI:Chromosome conjugation in the hybrids between Emmer wheat and induced autotetraploid Aegilops squarrosa or Ae. bicornis, p.19
H. FUKASAWA:Fertility restoration of cytoplasmic male-sterile Emmer wheats, p.21
M. TANAKA:Morphological characters of nine diploid analysers of the genus Aegilops, p.22,23
H. FUKASAWA:Results of genome exchange among Aegilops and Triticum species through the successive backcrosses, p.24
Errata of WIS No. 6, p.24

III. Genetic Stocks:
M. ROMMEL and B. C. JENKINS:Autopolyploids and amphipolyploids in Triticinae, p.25
N. HIRATSUKA:Differential Varieties of Triticum and Avena species Wanted, p.25

IV. Informations of the International Meetings, p.26

V. Circulation List of WIS, P.29

VI. News, p.30

VII. Announcement for the Next Issue, No. 8, p.31

VIII. Acknowledgement, p.31
Committee, ...Cover iii
Explanation of the Figures on the Cover, ...Cover iii