Wheat Information Service No.6 Wheat Information Service No.6



Contents

I. Research Notes:
E. R. SEARS:Effect of chromosomes XII and XVI on the action of Neatby's virescent, p.1
R. I. LARSON:Cytogenetics of solid stem in common wheat: Monosomic F2 analysis of the variety S-615, p.2
M. OKAMOTO:Further information on identification of the chromosomes in the A and B genomes, p.3
K. YAMASHITA:Further studies on the synthesis of a permanent RT-heterozygote in Einkorn wheat, p.4
K. YAMASHITA, Z. KASAI & K. ASADA:A preliminary experiment on carbon dioxide fixation of a mutant " orange " in Einkorn wheat, p.5
S. MATSUMURA & T. FUJII:Genetic effects of ionizing radiation in Einkorn wheat, p.6
S. MATSUMURA, T. FUJII & S. KONDO:Effects of X- and Gamma-radiations upon wheat seedlings and their modification due to temperature or polyploidy, p.7
T. FUJII:Studies on chlorophyll mutants in diploid wheat induced by radiation, p.8
Y. WATANABE, K. MUKADE & M. YAMADA:Introduction of the leaf-rust resistance to wheat variety from T. Timopheevi, p.9
J. TABUSHI:Chromosome pairing in the progeneies of synthesized 6x-wheat, ABD No. 4, p.10
H. KIHARA:Completion of genome-analysis of three 6x species of Aegilops, p.11
H. KIHARA, K. YAMASHITA & M. TANAKA:Variation of Aegilops squarrosa strains collected in Pakistan, Afghanistan and Iran, p.12
H. KIHARA, K. YAMASHITA & M. TANAKA:New geographical distribution of Aegilops columnaris, p.13
H. KIHARA, K. YAMASHITA, M. TANAKA & J. TABUSHI:Some aspects of the new amphidiploids synthesized from the hybrids, Emmer wheats x Aegilops squarrosa var. strangulata, p.14
H. KIHARA & K. YAMASHITA:Aegilops species found in chicken feed in Tabriz, p.16
M. TANAKA & K. YAMASHITA:Growing habit of Aegilops squarrosa strains collected in Pakistan, Afghanistan and Iran, p.16
M. KUMP:Genetical investigation on Triticum vulgare x Secale cereale hybrid I. Study of some transgressive characters of the culm and ear in the F4 generation, p.18
H. KUCKUCK & A. R. KRANZ:A genetic analysis of rye population from Iran, p.20
P. SARKAR:A new diploid form of Haynaldia hordeacea Hack, p.22
Errata, p.15

II. Genetic Stocks:
T. RAJHATHY & A. KISS:Autoploids and amphiploids in Triticinae produced at the Agricultural Research Institute of the Hungarian Academy of Sciences, Martonvasar, Hungary, p.23
K. YAMASHITA:Wheats from Czechoslovakia, p.24

III. Informations Respecting the International Meetings:

The First International Wheat Genetics Symposium to be held in Winnipeg, Manitoba, Canada, August 11-15, 1958, p.26
The Xth International Congress of Genetics to be held in Montreal, Canada, August 20-27, 1958, p.28

IV. Circulation List of WIS, P.30

V. News, p.31

VI. Announcement for the Next Issue, No. 7, p.32

VII. Acknowledgement, p.32
Coordinating Committee, ...iii
Explanation of the Figure on the Cover, ...iii