Wheat Information Service No.69 Wheat Information Service No.69


Contents

I. Articles
Sharma HC:New hybrids between wheat and Agropyron. IV. Transmission of telo and whole chromosomes, and fertility of alien adition lines of Agropyron trachycalum and A. ciliare in wheat, p.1
Duwayri M and Nachit MM:Utilization of durum wheat (Triticum targidum L. var. durum) landraces to improve yield and yeild stability in dry areas, p.5
Chawla HS and Wenzel G:Resistant wheat plants against Helminthosporium sativum from embryo derived callus cultures, p.8
Tomasovic S:Wheat breeding for resistance to Fusarium diseases especially to Fusarium graminearum Schw, p.13
Narasimham JV and Chawla HS:Polyphenol oxidase enzyme in isogenic lines of wheat in relation to leaf rust resistance, p.18
Tomar SMS, Kochumadhavan M and Nambisan PNN:Hybrid weakness in Triticum dicoccum Schubl, p.21

II. Records
Proceedings of the 15th Wheat Genetics Symposium of Japan
Furuta Y:Phylogeny of wheat and its relatives as viewed from nuclear, chromosomal and chromosome arm DNA content, p.24
Ohta S:Genome analysis of Aegilops mutica Boiss. and its phylogenetic position in the genera Aegilops and Triticum, p.27
Yamamoto M and Mukai Y:Application of fluorescence in situ hybridization to molecular cytogenetics of wheat, p.30
Mukai Y and Miki M:Identification of wheat and rye chromosomes by in situ hybridization with repeated DNA suquences, p.33
Metsugi N, Yamamoto M and Mukai Y:Visualization of the genetic activity of ribosomal RNA genes in wheat by in situ hybridization using biotinylated probe, p.35
Nakata N, Yasumuro Y and Sasaki M:Development of reciprocal translocation homokaryotypic lines by X-rays irradiation of polyhaploid in wide cross hybrid, p.38
Koba T, Handa T and Shimada T:Production of wheat x barley hybrids and preferential elimitation of barley chromosomes, p.40
Yasumuro Y, Nakata N and Sasaki M:A triticale breedings strategy drawn from genetic analysis of nucleo-cytoplasmic interaction, p.43
Shimada T:Microspore development during in vitro anther culture of wheat, p.46

III. Gene Symbol
McIntoshi RA, Hart GE and Gale MD:Catalogue of gene symbols for wheat. (1989 supplement), p.49

IV. Editorial Remarks
Regulations, ...i
Announcement for Future Issues, p.64
Explanation of picture on the cover, p.64
Coordinating Committee, ...ii