Publication Date

1985

Location

Kyoto Japan

Description

Genet and Ram et populations of timothy, Phleum pratense L., were raised to investigate the effects of neighbour plants on their growth. The adjoining plants were positively or none correlated in Ramet and negatively or none done in Genet populations in a number of traits. In number of tillers at both the first and second cuts negative and none correlation coefficients between the adjoining plants were observed in Genet and Ramet populations, respectively. Also competitional effects were obviously distinguished in dry weight of Genet population at both first and second cuts. Thus competitional variances for these characters were significantly observed as well as genetic and environmental variances in Genet populations. Competitional effects of neighbour plants should be taken into account to evaluate the genetic variations of forage yields in timothy.

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Competitional Effects of Neighbor Plants and Genetic Variations in Experimental Populations of Timothy, Phleum pratense L.

Kyoto Japan

Genet and Ram et populations of timothy, Phleum pratense L., were raised to investigate the effects of neighbour plants on their growth. The adjoining plants were positively or none correlated in Ramet and negatively or none done in Genet populations in a number of traits. In number of tillers at both the first and second cuts negative and none correlation coefficients between the adjoining plants were observed in Genet and Ramet populations, respectively. Also competitional effects were obviously distinguished in dry weight of Genet population at both first and second cuts. Thus competitional variances for these characters were significantly observed as well as genetic and environmental variances in Genet populations. Competitional effects of neighbour plants should be taken into account to evaluate the genetic variations of forage yields in timothy.