Two field experiments
were conducted to study the responses of five white yam cultivars to three harvesting
dates during June 2016 and June 2017 cropping seasons in a tropical ultisol of
south eastern Nigeria. The experiment was a 5 x 3 factorial arrangement laid out
in a randomized complete block design (R C B D) with five replications.
Treatments comprised all possible combinations of five white yam cultivars (Adaka,
Ame, Amula, Hembamkwase, and Yandu) and three harvest dates (8, 16, and 24
weeks after planting). Cultivar did not significantly (P ≥ 0.05) affect percent
establishment, vine length, total leaf area, tuber bulking, number of tubers
per plant, tuber weight and tuber yield, but Hembamkwase had thicker vines than
Amula and Adaka. Increasing the harvesting
date from 8weeks after planting to 24weeks after planting increased
significantly (P ≤ 0.05) tuber bulking, number of tubers per plant, tuber
weight and tuber yield. Tuber yield at 24 weeks after planting, which produced
the highest yield was higher than the yield at 8 and 24 weeks after planting by
356% and 136%, respectively on average. Based on this results, early planting
is recommended to ensure the crop goes through a growing season of about 8 to
10 months that would allow for ample vegetative growth and the manifestation of
the full genetic potentials of the cultivars.
EGBO, E (2022). Responses Of Some White Yam Cultivars (Dioscorea Rotundata Poir) To Different Harvesting Dates.. Repository.mouau.edu.ng: Retrieved Feb 07, 2023, from https://repository.mouau.edu.ng/work/view/responses-of-some-white-yam-cultivars-dioscorea-rotundata-poir-to-different-harvesting-dates-7-2
EGBO, EGBO. "Responses Of Some White Yam Cultivars (Dioscorea Rotundata Poir) To Different Harvesting Dates." Repository.mouau.edu.ng. Repository.mouau.edu.ng, 14 Nov. 2022, https://repository.mouau.edu.ng/work/view/responses-of-some-white-yam-cultivars-dioscorea-rotundata-poir-to-different-harvesting-dates-7-2. Accessed 07 Feb. 2023.
EGBO, EGBO. "Responses Of Some White Yam Cultivars (Dioscorea Rotundata Poir) To Different Harvesting Dates.". Repository.mouau.edu.ng, Repository.mouau.edu.ng, 14 Nov. 2022. Web. 07 Feb. 2023. < https://repository.mouau.edu.ng/work/view/responses-of-some-white-yam-cultivars-dioscorea-rotundata-poir-to-different-harvesting-dates-7-2 >.
EGBO, EGBO. "Responses Of Some White Yam Cultivars (Dioscorea Rotundata Poir) To Different Harvesting Dates." Repository.mouau.edu.ng (2022). Accessed 07 Feb. 2023. https://repository.mouau.edu.ng/work/view/responses-of-some-white-yam-cultivars-dioscorea-rotundata-poir-to-different-harvesting-dates-7-2