Premium
Genotypic Competition in Progeny Performance Evaluation of Potatoes 1
Author(s) -
Doney Devon L.,
Plaisted Robert L.,
Peterson L. C.
Publication year - 1965
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1965.0011183x000500050018x
Subject(s) - citation , competition (biology) , library science , crop , biology , plant breeding , breeding program , computer science , horticulture , ecology , cultivar
I N COMMERCIAL plantings of potatoes plants are all of one genotype, and competition is between plants of like genotype. The usual method of progeny testing for general combining ability in cross pollinated crops is to use plots composed of a mixture of genotypes. Hence, competition is between plants of unlike genotypes. The reproductive nature of potatoes enables one to test progenies in plots of unlike genotypes (mixed plots) or plots like genotype (pure plots). However, testing with pure plots requires more land and labor than testing with mixed plots. The purpose of this study was to determine if progeny testing in potatoes with mixed plots duplicates the results from testing with pure plots. In addition, considerable emphasis was placed on measuring the extent and importance of genotypic competition (competitive interaction of neighboring unlike genotypes).