Inheritance of Early Maturity in Some Cowpea (Vigna unguiculata (L.) Walp.) Genotypes under Rain Fed Conditions in Northern Ghana
A field experiment was conducted at Savanna Agricultural Research Institute in 2015 cropping season to examine the inheritance of early maturity among an extra-early maturing landrace Sanzi and a medium maturing variety Padi-Tuya and their progenies. The results indicated highly significant (P<0....
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Agriculture |
| Online Access: | http://dx.doi.org/10.1155/2018/8930259 |
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| author | Emmanuel Yaw Owusu Richard Akromah Nicholas Ninju Denwar Joseph Adjebeng-Danquah Francis Kusi Mohammed Haruna |
| author_facet | Emmanuel Yaw Owusu Richard Akromah Nicholas Ninju Denwar Joseph Adjebeng-Danquah Francis Kusi Mohammed Haruna |
| author_sort | Emmanuel Yaw Owusu |
| collection | DOAJ |
| description | A field experiment was conducted at Savanna Agricultural Research Institute in 2015 cropping season to examine the inheritance of early maturity among an extra-early maturing landrace Sanzi and a medium maturing variety Padi-Tuya and their progenies. The results indicated highly significant (P<0.01) genetic variations for the maturity indices, namely, days to first flower initiation (DFFI), days to 50% flowering (DFF), days to first pod maturity (DFPM), days to 90% pod maturity (DNPM), and plant height (P_PLT), seed per pod (S_Pod), and hundred seed weight (H_SWT). Heritability estimates for these traits varied from 74% to 99%. No significant differences (P>0.05) were observed between F1 and RF1, implying absence of maternal effect. The segregation ratio in the F2 population for early and medium maturity fitted into the ratio 3 : 1, indicating single dominant gene mode of inheritance. Significant positive correlations were found between DNPM, DFFI, DFF, and DFPM; hence selection criteria to improve early maturity of cowpea should focus on these traits. Grain yield also had significant positive correlations with maturity indices indicating high grain yield is associated with late maturity; therefore, high grain yield should be considered alongside early maturity when selecting progenies for earliness. |
| format | Article |
| id | doaj-art-517c0db5a4a74b2ebcef464659d42a17 |
| institution | Kabale University |
| issn | 2356-654X 2314-7539 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Agriculture |
| spelling | doaj-art-517c0db5a4a74b2ebcef464659d42a172025-02-03T05:47:11ZengWileyAdvances in Agriculture2356-654X2314-75392018-01-01201810.1155/2018/89302598930259Inheritance of Early Maturity in Some Cowpea (Vigna unguiculata (L.) Walp.) Genotypes under Rain Fed Conditions in Northern GhanaEmmanuel Yaw Owusu0Richard Akromah1Nicholas Ninju Denwar2Joseph Adjebeng-Danquah3Francis Kusi4Mohammed Haruna5CSIR-Savanna Agricultural Research Institute, P.O. Box TL 52, Tamale, GhanaKwame Nkrumah University of Science and Technology, Kumasi, GhanaCSIR-Savanna Agricultural Research Institute, P.O. Box TL 52, Tamale, GhanaCSIR-Savanna Agricultural Research Institute, P.O. Box TL 52, Tamale, GhanaCSIR-Savanna Agricultural Research Institute, P.O. Box TL 52, Tamale, GhanaCSIR-Savanna Agricultural Research Institute, P.O. Box TL 52, Tamale, GhanaA field experiment was conducted at Savanna Agricultural Research Institute in 2015 cropping season to examine the inheritance of early maturity among an extra-early maturing landrace Sanzi and a medium maturing variety Padi-Tuya and their progenies. The results indicated highly significant (P<0.01) genetic variations for the maturity indices, namely, days to first flower initiation (DFFI), days to 50% flowering (DFF), days to first pod maturity (DFPM), days to 90% pod maturity (DNPM), and plant height (P_PLT), seed per pod (S_Pod), and hundred seed weight (H_SWT). Heritability estimates for these traits varied from 74% to 99%. No significant differences (P>0.05) were observed between F1 and RF1, implying absence of maternal effect. The segregation ratio in the F2 population for early and medium maturity fitted into the ratio 3 : 1, indicating single dominant gene mode of inheritance. Significant positive correlations were found between DNPM, DFFI, DFF, and DFPM; hence selection criteria to improve early maturity of cowpea should focus on these traits. Grain yield also had significant positive correlations with maturity indices indicating high grain yield is associated with late maturity; therefore, high grain yield should be considered alongside early maturity when selecting progenies for earliness.http://dx.doi.org/10.1155/2018/8930259 |
| spellingShingle | Emmanuel Yaw Owusu Richard Akromah Nicholas Ninju Denwar Joseph Adjebeng-Danquah Francis Kusi Mohammed Haruna Inheritance of Early Maturity in Some Cowpea (Vigna unguiculata (L.) Walp.) Genotypes under Rain Fed Conditions in Northern Ghana Advances in Agriculture |
| title | Inheritance of Early Maturity in Some Cowpea (Vigna unguiculata (L.) Walp.) Genotypes under Rain Fed Conditions in Northern Ghana |
| title_full | Inheritance of Early Maturity in Some Cowpea (Vigna unguiculata (L.) Walp.) Genotypes under Rain Fed Conditions in Northern Ghana |
| title_fullStr | Inheritance of Early Maturity in Some Cowpea (Vigna unguiculata (L.) Walp.) Genotypes under Rain Fed Conditions in Northern Ghana |
| title_full_unstemmed | Inheritance of Early Maturity in Some Cowpea (Vigna unguiculata (L.) Walp.) Genotypes under Rain Fed Conditions in Northern Ghana |
| title_short | Inheritance of Early Maturity in Some Cowpea (Vigna unguiculata (L.) Walp.) Genotypes under Rain Fed Conditions in Northern Ghana |
| title_sort | inheritance of early maturity in some cowpea vigna unguiculata l walp genotypes under rain fed conditions in northern ghana |
| url | http://dx.doi.org/10.1155/2018/8930259 |
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