ISHS Acta Horticulturae 123: VI African Symposium on Horticultural Crops
GENETIC VARIABILITY OF SEEDLING EMERGENCE IN AMARANTHUS SPECIES AND ITS CORRELATION WITH OTHER TRAITS |
| Authors: | A.A.O. Edema, M.A.B. Fakorede |
| Abstract:
Three experiments were conducted with 36 genotypes of Amaranthus spp. in both Ile-Ife and Ibadan. Data on a total of 15 characters were statistically analysed. Analysis of variance of days to emergence (DE) showed that genotypic variance and GxE interactions were significant. There were significant environmental differences between locations among Ife and Ibadan, but not within Ile-Ife. Although broad sense heritability value (hB2 = 67%) and range of genetic variability of DE were high, this trait was not significantly correlated with (a) fresh weight per plant in the first five cuttings (rg = 0.05 – 0.31) except with the first cutting in one trial (rg = 0.73), (b) total number of cuttings (rg =-0.096). and (c) plant height at first cutting (rg = -0.092). It was, however, highly correlated with (I) days to first flowering and various percentages of flowering (rg = 0.51 – 0.88), (II) days to first cutting in one trial (rg = 0.66), and (III) plant height at 50% flowering in one trial (rg= 0.71). Seedling emergence from this study cannot be used to predict either days to first harvest and yield by repeated cuttings. | |
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