VINE HARVESTING FREQUENCY IMPACT ON TUBER YIELD ATTRIBUTES OF
COMMONEST SWEET POTATO CULTIVAR IN SUB-SAHARAN AFRICA
Dublin Core
Title
VINE HARVESTING FREQUENCY IMPACT ON TUBER YIELD ATTRIBUTES OF
COMMONEST SWEET POTATO CULTIVAR IN SUB-SAHARAN AFRICA
COMMONEST SWEET POTATO CULTIVAR IN SUB-SAHARAN AFRICA
Creator
C. MVUMI
B. ZENDERA
B. MASHAYAMOMBE
Description
Sweet potato (Ipomoea batatas L.) root tubers and vines are important for human and animal nutritional
requirements, respectively; the vines being additionally used for propagation, but root tuber yield is greatly
affected by vine harvesting frequency. This study aimed at assessing the potential effect of vine harvesting
frequency of sweet potato German 11 cultivar on attributes of root tuber yield under sprinkler irrigation after 140
days from planting. Treatments used consisted of vine harvesting once (VHO) at 8 weeks after planting, 2 times
(VH2T) at 8 and 10 weeks after planting; 3 times (VH3T) at 8, 10 and 12 weeks after planting; and 4 times
(VH4T) at 8 weeks, 10 weeks, 12 weeks and at 14 weeks after planting. No vine harvesting was the control.
Treatments were arranged in a randomized complete block design (RCBD) and replicated three times. Results
revealed that vine harvesting frequency had a relative effect on all root tuber yield attributes of sweet potato. The
lower the vine harvesting frequency the higher the yield obtained. Vines harvested once (VHO) at 8 weeks
significantly (P<0.001) increased root tuber dry matter (DM) (29.3%) and total root tuber yield (14.5 t ha-1) as
compared to VH4T, and also gave optimum results in all the root tuber yield parameters measured. Based on the
results, optimum German 11 cultivar production capacity is achieved when vine harvesting for livestock feeding
and propagation is done only once at 8 weeks
requirements, respectively; the vines being additionally used for propagation, but root tuber yield is greatly
affected by vine harvesting frequency. This study aimed at assessing the potential effect of vine harvesting
frequency of sweet potato German 11 cultivar on attributes of root tuber yield under sprinkler irrigation after 140
days from planting. Treatments used consisted of vine harvesting once (VHO) at 8 weeks after planting, 2 times
(VH2T) at 8 and 10 weeks after planting; 3 times (VH3T) at 8, 10 and 12 weeks after planting; and 4 times
(VH4T) at 8 weeks, 10 weeks, 12 weeks and at 14 weeks after planting. No vine harvesting was the control.
Treatments were arranged in a randomized complete block design (RCBD) and replicated three times. Results
revealed that vine harvesting frequency had a relative effect on all root tuber yield attributes of sweet potato. The
lower the vine harvesting frequency the higher the yield obtained. Vines harvested once (VHO) at 8 weeks
significantly (P<0.001) increased root tuber dry matter (DM) (29.3%) and total root tuber yield (14.5 t ha-1) as
compared to VH4T, and also gave optimum results in all the root tuber yield parameters measured. Based on the
results, optimum German 11 cultivar production capacity is achieved when vine harvesting for livestock feeding
and propagation is done only once at 8 weeks
Publisher
International Journal of Agronomy and Agricultural Research (IJAAR)
Date
2018
Collection
Citation
C. MVUMI
, B. ZENDERA, and B. MASHAYAMOMBE, “VINE HARVESTING FREQUENCY IMPACT ON TUBER YIELD ATTRIBUTES OF
COMMONEST SWEET POTATO CULTIVAR IN SUB-SAHARAN AFRICA,” ZOU Institutional Repository, accessed July 6, 2025, https://ir.zou.ac.zw/items/show/271.
COMMONEST SWEET POTATO CULTIVAR IN SUB-SAHARAN AFRICA,” ZOU Institutional Repository, accessed July 6, 2025, https://ir.zou.ac.zw/items/show/271.
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