Inbreeding depression and heterosis in sweet corn varieties Manis Madu and Bakti-1


Citation

Ghizan Saleh, . and Mohd Rafii Yusof, . and Yap Thoo Chai, . Inbreeding depression and heterosis in sweet corn varieties Manis Madu and Bakti-1. pp. 209-214. ISSN 0126-6128

Abstract

S1 and full-sib progeny families developed from selfing and crossing between Manis Madu and Bakti-1 sweet corn varieties were evaluated to estimate inbreeding depression and heterosis in the populations. Selfing has caused a significant decrease in the measurements of all characters taken in both selfed populations except for days to tasseling which has shown an increase. Midparent heterosis estimates for the characters evaluated ranged from -2.83 to 22.34 for the Manis Madu X Bakti-1 cross progeny population (MMB1) and from -2.65 to 16.57 in the Bakti-1 X Manis Madu cross progeny population (B1MM). The two varieties revealed good potential to be used as parents for crosses between improved populations or inbred lines developed from them.


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Abstract

S1 and full-sib progeny families developed from selfing and crossing between Manis Madu and Bakti-1 sweet corn varieties were evaluated to estimate inbreeding depression and heterosis in the populations. Selfing has caused a significant decrease in the measurements of all characters taken in both selfed populations except for days to tasseling which has shown an increase. Midparent heterosis estimates for the characters evaluated ranged from -2.83 to 22.34 for the Manis Madu X Bakti-1 cross progeny population (MMB1) and from -2.65 to 16.57 in the Bakti-1 X Manis Madu cross progeny population (B1MM). The two varieties revealed good potential to be used as parents for crosses between improved populations or inbred lines developed from them.

Additional Metadata

[error in script]
Item Type: Article
AGROVOC Term: Zea mays
AGROVOC Term: Sweet corn
AGROVOC Term: Inbreeding depression
AGROVOC Term: Experiments
AGROVOC Term: Heterosis
AGROVOC Term: Selfing
AGROVOC Term: Hybrids
AGROVOC Term: Alleles
AGROVOC Term: Plant population
AGROVOC Term: Plant breeding
Geographical Term: Malaysia
Depositing User: Ms. Suzila Mohamad Kasim
Last Modified: 27 Apr 2025 23:32
URI: http://webagris.upm.edu.my/id/eprint/22776

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