Wheat Information Service No.33-34 Wheat Information Service No.33-34



Contents

I. Research Notes:
D. BAGNARA and L. ROSSI:A liguleless mutation radioinduced in Triticum durum DESF., p.1
A. C. ZEVEN:Determination of the chromosome and its arm carrying the Ne1-locus of Triticum aestivum L., Chinese Spring and the Ne1-expressivity, p.4
D. S. VIRK and S. B. SINGH:Path coefficient analysis of grain yield in wheat (T. aestivum L.), p.6
D. SINGH and B. C. JOSHI:Orientation of homoeologous chromosomes in the somatic cells of wheat, p.9
J. R. LACADENA and A. AZPIAZU:On the use of the 5B genetic system in wheat breeding: The allosyndetic pairing in nulli-5B amphidiploids, p.10
J. TABUSHI:Identification of univalents in synthesized wheat, ABD-12, p.12
H. C. BANSAL, R. P. SHARMA and P. N. NARULA:Induced mutations for amber grain color in two varieties of wheat, p.13
M. D. UPADHYA, A. N. PUROHIT and D. K. JOSHI:Genetic cooperation in early growth characteristics of red and amber grained strains of variety Pb C591, p.14
Y. NAKAI:Isozymes of Ae. triuncialis and its parental species, p.15
K. GOTSOV and I. PANAYOTOV:Natural hybridization of male sterile lines of common wheat Ae. cylindrica x HOST., p.20
T. TSUCHIYA:Variation of chromosome numbers in different seed size classes of hexaploid triticale, p.22
T. TSUCHIYA:Chromosome associations and seed fertility in five strains of hexaploid triticale, p.24
D. SINGH and B. C. JOSHI:Recombination between the chromosomes of wheat and rye- A possibility, p.26
Y. TSUMOTO and M. SASAKI:Effect of B chromosomes on chiasma frequency of A chromosomes in rye, p.28
B. C. JOSHI, D. SINGH, S. KUMAR, H. C. BANSAL and S. VARMANI:Induction of chlorophyll deficient mutations in Secale cereale, p.30
D. SINGH, R. P. SHARMA and B. C. JOSHI:Failure of cytokinesis in Secale cereale, p.32
P. K. GUPTA:The homoeologous group 4 in the Triticinae, p.33
J. DVORAK and D. R. KNOTT:Homoeologous pairing of specific Agropyron elongatum (2n=70) chromosome with wheat chromosomes, p.35
H. A. MOHAMED, A. M. OMAR, A. SELIM and M. N. EL-BARHAMTOUSHY:Inheritance of field reaction to wheat rusts, p.38
H. FUKASAWA:RNA synthesizing activity of wheat chromatin from germinating embryos and aleurone layers, p.42

II. Genetic Stock
K. TSUNEWAKI, Y. NAKAI, F. KASAHARA and T. FUJITA:Necrosis genes in Chinese and Indian common wheat, p.43

III. News:Indian Wheat Varieties as Sources of Fertility Restoration in Wheat, p.53

IV. Editorial Remarks:, p.54
Announcement for future issues, ...iii
Subscription, ...iii
Acknowledgement, ...iii
Coordinating Committee, ...iii
Explanation of the Figure on the Cover, ...iii