Wheat Information Service No.17-18 Wheat Information Service No.17-18



Contents

I. Research Notes
A. BOZZINI, F. D'AMATO, L. M. MONTI and G. T. SCARASCIA MUGNOZZA:Analysis of cross-pollination in durum wheat, p.1
F. D'AMATO, G. T. SCARASCIA MUGNOZZA and A. BOZZINI:Viable mutations in durum wheat induced by radiations and chemicals, p.2
L. E. EVANS:A true breeding grass clump dwarf wheat, p.6
Hosni A. MOHAMED:Influence of planting date on some agronomic characters of wheat, p.6-9
C. N. LAW:Homoeologous chromosome recombination in Triticum aestivum, p.10
R. RILEY and V. CHAPMAN:The effect of the deficiency of the long arm of chromosome 5B on meiotic pairing in Triticum aestivum, p.12
V. CHAPMAN and R. RILEY:Haploid Aegilops caudata, p.16
D. METTIN:On the intraspecific variability of baking quality components in Einkorn-wheats, Aegilops speltoides and Aegilops squarrosa, p.17
S. SAKAMOTO:A polyhaploid plant of Agropyron tsukushiense var. transiens Ohwi found in a state of nature, p.19
John M. LAWRENCE and D. R. GRANT:Determination of wheat flour proteins by gel electrophoresis, p.20

II.
E. G. HEYNE:Report of Committee on Maintainance of Genetic Stocks in Wheat, p.22

III.
K. YAMASHITA:A Documintary of the Botanical Expedition to the Heart of the Aegilops Distribution SCENARIO, p.24

IV.
R. MERTON LOVE, M. E. HEATH, WARREN H. LEONARD:Crop Terminology, p.28
A. R. da SILVA e E. T. COELHO:The identification of physiologic races of puccinia graminis var. tritici by wheat isogenic or substitution lines, carrying genes for resistance, p.33
K. TSUNEWAKI:Transmission of monosomes and trisomes in an Emmer wheat, T. dicoccum var. Khapli, p.34
S. MATSUMURA and T. MABUCHI:Relation of radiation effects to dose rates of gamma-rays in diploid wheat, p.36
S. MATSUMURA:Relation between polyploidy and effects of gamma- and neutron-radiation on wheat, p.36
T. FUJII:RBE value 14 MeV fast neutrons to 60Co gamma-rays in T. monococcum, p.38
K. TSUNEWAKI and K. NISHIKAWA:Frequencies of Ne1 and Ne2 genes in Emmer and common wheats, p.40