Table 19-2. Narrow sense heritability estimates for various tall fescue traits.

Trait

Heritability

Reference

Acid detergent fiber

0.40-0.61

0.31-0.55

Nguyen et al., 1982

Annicchiarico and Romani, 2005

Ca concentration

0.79

Reeder et al., 1986

Dark respiration rate

0.60-0.90

Volenec et al., 1984

Forage yield

0.36-0.67

0.77

0.58-0.60

Nguyen et al., 1982

Reeder et al., 1986

Annicchiarico and Romani, 2005

IVDMD†

0.27-0.66

Nguyen et al., 1982

K/(Ca + Mg) ratio

0.77

Reeder et al., 1986

K concentration

0.89

Reeder et al., 1986

Leaf tensile strength

0.71-0.78

Nguyen et al., 1982

Maturity score

0.86 ± 0.34

Nguyen and Sleper, 1983

Mg concentration

0.75

Reeder et al., 1986

NDSPCS‡

0.30 (fall)-0.65 (summer)

Bughrara et al., 1991

Net carbon exchange

0.22-0.44

Asay et al., 1974

Neutral detergent fiber

0.61-0.70

0.39-0.60

Nguyen et al., 1982

Annicchiarico and Romani, 2005

Number of panicles

0.92 ± 0.35

Nguyen and Sleper, 1983

Number of rhizomes

0.38-0.88

Bouton et al., 1992

Se concentration

0.18 (summer)-0.68 (fall)

McQuinn et al., 1991

Seed weight/panicle

0.50 ± 0.31

Nguyen and Sleper, 1983

Seed yield

0.67 ± 0.34

Nguyen and Sleper, 1983

† In vitro dry matter digestibility.

‡ Neutral detergent solution and prepared cellulase solution digestibility.

<--Genetic Variation, Heritability, and Plant Breeding

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Tall Fescue Monograph