Hybrid Vigor and Heritability Estimates in Tomato Crosses Involving Solanum lycopersicum × S. pimpinellifolium under Cool Tropical Monsoon Climate

Table 6

Estimates of the better parent (BP) and midparent (MP) heterosis for the fruit traits of F₁ hybrids of tomatoes.

Crosses

Heterosis

DFFE (%)

D50 FS (%)

DFFR (%)

NFrPT (%)

TNFr PP (%)

FWPP (%)

FPD (%)

FED (%)

NLPF (%)

D1st FrSp (%)

D50 FrSp (%)

D100 FrSp (%)

FPT (%)

TFY (%)

H × W

BP

37.5

14.7

35.5

−56.9

−78.3

−5.2

3.8

0.8

1.4

−32.2

−28.6

−23.1

2.4

2.3

D × W

BP

−3.1

−0.3

12.3

−11.3

−75.6

30.4

9.2

6.5

8.3

−29.9

−22.2

−26.7

2.0

48.6

T × W

BP

21.4

5.0

18.4

−50.1

−82.5

1.0

4.2

0.1

7.2

−49.6

−43.2

−39.0

1.4

3.8

U × W

BP

−0.6

−1.0

10.4

−10.9

−75.0

35.5

13.9

3.0

2.5

−18.8

−21.7

−14.9

2.5

26.9

H × W

MP

15.1

6.9

14.0

−39.8

−60.4

−2.3

−26.8

−16.8

−16.5

−18.7

−16.2

−12.5

−23.3

−12.2

D × W

MP

12.4

17.6

3.8

−1.9

−58.8

−61.7

−44.8

−34.7

−24.3

−17.1

−11.3

−14.3

−29.1

−56.7

T × W

MP

15.0

4.6

7.6

−31.8

−67.4

−9.1

−33.1

−13.5

−5.1

−31.3

−26.4

−22.7

−11.1

−22.9

U × W

MP

3.7

5.1

3.4

−2.2

−57.4

−69.3

−39.9

−29.3

−35.5

−10.1

−11.3

−7.6

−29.5

−62.3

W: wild parent (“LA2093”); H: CLN2714H; D: CLN2498D; T: Tima; U: UC dan INDIA; DFFE: days to first fruit emergence; D50FS: days to 50% fruit set; DFFR: days to first fruit ripening; NFrPT: number of fruits per truss; TNFrPP: total number of fruits per plant; FWPP (g): fruit weight per plant; FPD (cm): fruit polar diameter; FED (cm): fruit equatorial diameter; NLPF: number of locules per fruit; D1stFrSp: number of days to first fruit spoilage; D50FrSp: number of days to 50% fruit spoilage; D100FrSp: number of days to 100% fruit spoilage; FPT (cm): fruit pericarp thickness; TFY (t/ha): total fruit yield per hectare; , significant at 5% level of significance; , significant at 1% level of significance.