Theory of Plant Breeding 
1822. He became a priest in the Konigin Kloster at 
Alt Brunn, and in the garden of this cloister carried 
out those careful tests which are now universally 
recognised as of the first importance. He became 
abbot of his monastery and died in 1884.4 
These experiments were published in 1866 and were 
never seriously noticed by anybody until 1900 !* 
He selected two races of peas, one with yellow and 
one with green seed, and crossed them, with the results 
shown in the diagram. All the hybrids in the first 
generation were yellow. 
Yellow x Green, 
All Yellow. 
1 Pure Yellow. 2 Impure Yellow. I Green, 
Pure I Pure 2 Impure I Green. Green. 
Yellow. Yellow. Yellow. : : 
Pure Pure Pure 2 Impure Green. Green. Green. 
Yellow. Vellow. Yellow. Yellow. 
The proportions in the second generation are, as 
* A translation of his original paper has been published and is still worth 
reading, for it is considered a classic.?° 
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