ABSTRACT
Twelve varieties of
cucumber (Cucumis sativus L.) were used in three field experiments
to evaluate their performance under Umudike (South eastern Nigeria) conditions
in 2019 and 2021 cropping seasons, and to make crosses (hybridization) so as to
study heteroses and heritability (broad sense), to enable one make selections
for superior traits for hybrid seed production and fresh pod yield improvement
program. Randomized complete block design with three (3) replicates was used
for experiments 1 and 3. Crossing blocks was used in experiment 2. With respect
to yield, Thai 986, Thai 999, and CU 4315 performed significantly (p < 0.05)
better than must of the other varieties. Hence, Thai 986, Thai 999 and CU 4315
varieties could lead to increase in cucumber fruit production if adopted by
farmers in Umudike. The straight and reciprocal crosses between Thai 999 and
Thai 986, Marketer and Poinsett 76 produced F1 hybrids which recorded
higher positive heteroses of 32.51, 51.45, 98.86 and 101.07% respectively over their
better parents. The fruit yield of these F1 hybrids were also
significantly higher (p < 0.05) than the yield of other hybrids. Straight
and reciprocal crosses between Thai 999 and Thai 986, Marketer and Poinsett 76
could be used to produce hybrid seeds for increased fruits production.
Variability studies showed that genetic factors exerted great influence on the
quantitative characters studied. However, further genetic studies (heritability
and genetic advance) showed that selection based on length of main vine, number
of leaves and length of fruit could lead to improvement in fruit yield of
cucumber through breeding program.
CHIZARAM, M (2024). Assessment Of Yield, Variability, Heritability And Genetic Advance In Cucumber (cucumis sativus l.) Varieties in Umudike:- Ukoh, Chizaram M. Repository.mouau.edu.ng: Retrieved Sep 07, 2024, from https://repository.mouau.edu.ng/work/view/assessment-of-yield-variability-heritability-and-genetic-advance-in-cucumber-cucumis-sativus-l-varieties-in-umudike-ukoh-chizaram-m-7-2
MARGARET, CHIZARAM. "Assessment Of Yield, Variability, Heritability And Genetic Advance In Cucumber (cucumis sativus l.) Varieties in Umudike:- Ukoh, Chizaram M" Repository.mouau.edu.ng. Repository.mouau.edu.ng, 17 Jul. 2024, https://repository.mouau.edu.ng/work/view/assessment-of-yield-variability-heritability-and-genetic-advance-in-cucumber-cucumis-sativus-l-varieties-in-umudike-ukoh-chizaram-m-7-2. Accessed 07 Sep. 2024.
MARGARET, CHIZARAM. "Assessment Of Yield, Variability, Heritability And Genetic Advance In Cucumber (cucumis sativus l.) Varieties in Umudike:- Ukoh, Chizaram M". Repository.mouau.edu.ng, Repository.mouau.edu.ng, 17 Jul. 2024. Web. 07 Sep. 2024. < https://repository.mouau.edu.ng/work/view/assessment-of-yield-variability-heritability-and-genetic-advance-in-cucumber-cucumis-sativus-l-varieties-in-umudike-ukoh-chizaram-m-7-2 >.
MARGARET, CHIZARAM. "Assessment Of Yield, Variability, Heritability And Genetic Advance In Cucumber (cucumis sativus l.) Varieties in Umudike:- Ukoh, Chizaram M" Repository.mouau.edu.ng (2024). Accessed 07 Sep. 2024. https://repository.mouau.edu.ng/work/view/assessment-of-yield-variability-heritability-and-genetic-advance-in-cucumber-cucumis-sativus-l-varieties-in-umudike-ukoh-chizaram-m-7-2