I - --ii

265
Pois Chiche 4F32 (F8): Yellow seed coat, rough surface, seeds 1.5 times
heavier than Pb7 and late in maturity.
Pois Chiche No. 199 (F9): Dull white seed coat, smooth surface and seeds 1.5
times as heavy as Pb7. Pois Chiche No. 282 (FIO): Black seed coat with slightly
rough surface, seeds 2.25 times as heavy as those of Pb7.
Relative resistance of these types was F1O>F8>F9. However, type F8 having
high resistance to blight when distributed to farmers in 1940-41 was found
highly susceptible to wilt in some areas. In the evolution of blight-resistant
cultivars since then, F8 genes have been used:
Year of Type Pedigree Remarks
release
1944 C1234 Pb7 x F8 Became susceptible in
1950-51
1960 C235 1.P.58 x C1234 Became sL.-ceptible in
1967-68
1977 C543 C235 x C168 Showed a high degree of infection
to blight in 1980-81
During severe infection in 1947-48 at the Central Station of the Agricultural
Institute in U.P., three lines (99/21,21 and 142) showed some resistance. Aujla
and Bedi (1967) found 11 lines, viz. 11/48-7, BN 3118, P36, Broach, GG
Pedapuram, Attock 234, 337, 172-3, 436, 84 and 241/1 resistant to blight.
Sandhu (1972) reported that out of 600 lines ony 1I survived the severe blight
attack in 1967-68. These were Galban Gafnier, Galban, Negro, Brunra Scatdie
and Albgatbai from Rumania; V138 from Mexico; E.C.12411 from USSR, and
E.C.21628, EC26414, EC26435 and EC26446 from Israel. Grewal and Vir
(1974) reported that selection P1528-1-1 from Morocco was found immune and
1-13 (12-074-06625) from Israel was resistant to blight.
Physiological Races
Luthra et al.(1939) reported that five cultural forms of the fungus, pathogenic to
chickpea, were biologically identical and thus Punjab had no,physiological razes.
However, Aujla (1964) reported the presence of eleven distinct strains differing
in their cultural characters as also in their pathogenic behavior in different
chickpea lines. Further, Bedi and Aujla (1969) established the presence of
physiological races in this fungus and suggested that to locate sources of resistance
in blight, the breeding material may invariably be tested against all the
physiological races prevalent in the area. Vir and Grewal (1974a) reported the
existence of two distinct races and one biotype in their study of 268 isolates of A.
rabiei.