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Table 1 Heterosis of F1 hybrids

From: Analysis of the leaf methylomes of parents and their hybrids provides new insight into hybrid vigor in Populus deltoides

Clone No.

Age (year)

heterosis over better parent %

  

Tree height

DBH

H1

5

7.81 ± 0.05

1.26 ± 0.03

H2

5

12.55 ± 0.06

1.49 ± 0.02

H3

5

11.09 ± 0.04

0.72 ± 0.01

L1

5

-5.77 ± 0.03

-20.92 ± 0.03

L2

5

-7.59 ± 0.05

-21.82 ± 0.05

  1. Heterosis over higher parent was calculated as H = (F1-Ps)/Ps × 100%, where H is the amount of heterosis, F1 is the trait value of the hybrid, and Ps is the trait value of the better parent.