o extract ths ancestral tetraploid component, AABB, of the allohexaploid, Triticum aestivum (2n-6x 42), AABBDD, it is necessary to eliminate one genome, that is, one-third of the genotype. An attempt ...

Dry seeds of two standard local varieties of rice namely, Dokri Basmati and Jajai-11 were subjected to different dosages of gamma-rays and fast neutron. Data on the seed fertility of the M\ generation...

Cephaliophora irregularis Thax. is reported for the first time in Pakistan. From the cultural studies of C. irregularis it was noticed that the cardinal temperatures for growth are 20, 30, 35 and 40 C...

The enzyme acid phosphatase was studied in Taraxacum roots with respect to its substrate and pH specificity. A pH optima of ca. 4.8 was noted after using ten different phosphate compounds as its subst...

Abscission of pedicel of Corchorus trilocularis after its pollination with C. olitorius is completely suppressed by the application of IB A (300 PPM) around the pedicel of the pollinated flower. Longi...

Paspalum distichum L. is a perennial grass species which grows in water ditches or in badly water-logged soils along water courses in the West Pakistan plains. The root system of this species has been...

Morphological studies of the members of Acacia nilotica complex indicate that the vast amount of variability encountered in this group is because of hybridization between A. nilotica ssp. indica and A...

Dadhi’ or ‘dahi’ is a form of fermented milk product. Its quality greatly depends on the microbial flora present in it. We undertook the present work to find out the micro-organisms present in t...

The taxonomy, nomenclatural position and distribution of the genus Sesbania from West Pakistan has been discussed. Four species namely, S. grandiflora (L.) Poir, S. sesban (L.) Merrill, S. bispinosa (...

For the extraction of tetraploid component of a hexaploid the production and hackcrossing of fertile pentaploids is essential. The first hackcross of the F\ pentaploids to varieties Chinese Spring, Pe...

The inheritance of resistance in C.I. 7809 and P.I. 109593 to leaf rust of wheat, Puccinia recondita tritici was studied. It was found that resistance in C.I. 7809 to strain 135Z) was conditioned by a...