1. Pollen tube expression of pseudo-self-compatibility (PSC) inPetunia hybrida

   • D. R. Flaschenriem
   • P. D. Ascher

   OriginalPaper Pages: 97 - 101

2. The allotetraploidization of maize

   • G. G. Doyle

   OriginalPaper Pages: 103 - 112

3. Genetics of incompatibility inCorylus avellana L.

   • Maxine M. Thompson

   OriginalPaper Pages: 113 - 116

4. Studies on intravitally-determined interrelationships between the activity of asparagine and alanine aminotransferases in blood serum and the fattering growth and meat yield of pigs

   • Maria Koćwin-Podsiadly
   • G. Adamska-Jarecka
   • B. Jabłońska

   OriginalPaper Pages: 117 - 120

5. Responses upon multiple administration of L-thyroxine in hens

   • Hanna Majewska
   • Anna Maria Konecka
   • A. Witowski

   OriginalPaper Pages: 121 - 128

6. Direct infection of embryogenic tissue cultures of haploidBrassica napus with resting spores ofPlasmodiophora brassicae

   • M. D. Sacristán
   • F. Hoffmann

   OriginalPaper Pages: 129 - 132

7. Two locus models of selection and mutation within and among full-sib lines

   • F. M. Stewart
   • M. T. Clegg
   • J. F. Kidwell

   OriginalPaper Pages: 133 - 139

8. Cycloheximide resistance in carrot culture

   • P. M. Gresshoff

   OriginalPaper Pages: 141 - 143