Wheat Information Service No.68 
Contents
I. Research Notes
L.A. SITCH & J.W. SNAPE:Allelic
variation at the crossability loci in wheat (Triticum aestivum), p.1
R.P. SINGH, I. SINGH & R.K. CHOWDHURY:Hybrid necrosis
in bread wheat. III, p.6
B. EHDAIE & J.G. WAINES:Variation in growth, flowering,
and seed set under high temperatures in Aegilops species, p.9
S.M. ALAM, A.R. AZMI & S.M. NAQVI:Effect of salt stress
on germination and seedling growth of wheat cultivars, p.13
N.P. KAUR, P.N. TAKKAR & A.K. GUPTA:Screening of wheat
germplasm for Mn deficiency stress tolerance, p.18
C.S. KALIA, M.P. SINGH & C. RAJLAKSHMY:Induced genetic
variability in some dwarf wheat mutants, p.22
V.R.K. REDDY & P.K. GUPTA:Mutants for leaf character
in hexaploid triticale, p.26
M.B. KUMBHAR & A.S. LARIK:Genetic analysis of some
yield parameters in Triticum aestivum L., p.29
I.S. PAWAR, R.S. PARODA & S. SINGH:Heritability estimation
by parent progeny regression vis-a-vis standard unit method in four wheat crosses,
p.33
J. SINGH, O.P. LUTHRA & V. CHAWLA:Combining ability
of latent period and pustule size in wheat, p.37
S.S. NAVI, S. KULKARNI & R.K. HEGDE:Slow rusting mechanism
for leaf rust operating in bread wheat varieties (Triticum aestivum L)
against Puccinia recondia f.sp. tritici Rob. Ex. Desm., p.40
M.K. UPADHYAY & B. SINGH:RD 10-A source of resistance
to karnal bunt of wheat, p.44
II. Editorial Remarks
Announcement for the Future Issues, p.46
Membership Fee, p.46
Coordinating Committee, ...cover
Explanation of Figure on the Cover, ...cover