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

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

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 percent to 22.34 percent for the Manis Madu X Bakti-1 cross progeny population (MMB1) and from -2.65 percent to 16.57 percent 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 percent to 22.34 percent for the Manis Madu X Bakti-1 cross progeny population (MMB1) and from -2.65 percent to 16.57 percent 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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Item Type:	Article
Additional Information:	Summaries (En Ms)
AGROVOC Term:	MAIZ DULCE
AGROVOC Term:	ZEA MAYS
AGROVOC Term:	DEPRESION POR CONSANGUINIDAD
AGROVOC Term:	VIGOR HIBRIDO
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:51
URI:	http://webagris.upm.edu.my/id/eprint/17276

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