Effects of Root-Zone Volume, Vine Pruning, and Season on Yield, Proximate Composition, and Antioxidant Capacity of Sweetpotato (Ipomea batatas (Lam.) L. TU-82-155)

Massa, Gioia D.; Mick, Mercedes E.; Montgomery, J. A.; Mitchell, Cary A.; Weiss, Ilan; Mauer, Lisa J.; Mortley, Desmond G.

doi:10.4271/2005-01-2816

Cited by 2 publications

(2 citation statements)

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“…Accordingly, Sakamoto and Suzuki (2018) showed that tuber yields of sweetpotato (Ipomea batatas) were higher in plants grown under medium (0.8 gal) or large (1.2 gal) containers compared with small (0.4 gal) containers. In contrast, Massa et al (2005) showed that yield of sweetpotato can be increased by restricting root volume using smaller containers, which corresponds with our findings for Expt. II.…”

Section: Resultssupporting

confidence: 92%

“…Roots had the lowest DW partitioning in both experiments, but values were generally higher in the smaller container volume. The effect of container volume on root DW corresponds with the findings of Massa et al (2005) who showed that root density of sweetpotato was higher in small compared with large containers. Turmeric had considerable DW partitioning to tuberous roots, especially for medium containers with 'Indira Yellow'.…”

Section: Resultssupporting

confidence: 86%

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Effect of Container Volume and Planting Density on Ginger and Turmeric Growth and Yield

Retana-Cordero

Flores

Fisher

et al. 2022

hortte

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Domestic production of ginger (Zingiber officinale) and turmeric (Curcuma longa) rhizomes is increasing. The objective of this study was to compare growth and rhizome yield of these crops using different container volumes and planting densities. Two greenhouse experiments that lasted 28 weeks each were conducted. In Expt. I, one sprouted rhizome of a single ginger variety (Bubba Blue) and four turmeric varieties (Hawaiian Red, BKK, White Mango, and Black) were transplanted into either small (1.5 gal) or large (13.3 gal) round containers. In Expt. II, either one or three sprouted rhizomes of two ginger varieties (Bubba Blue and Madonna) and two turmeric varieties (Indira Yellow and Hawaiian Red) were transplanted into either large (13.3 gal) or medium (3.9 gal) round containers. In Expt. I, there were an increase in plant growth and yield with increasing container volume, as both crops produced more than double the shoot, root, and rhizome fresh weight (FW) when grown in large compared with small containers. In Expt. II, rhizome yield of ginger was 44% higher in medium than large containers, and container volume did not affect yield in turmeric. Total dry weight (DW) was higher in plants grown in the larger container volume in both species in Expt. I, and turmeric only in Expt. II. However, ginger in Expt. II had an 18% higher plant DW in the medium compared with the large container. The higher density in Expt. II increased yield and biomass production per container compared with the lower density, regardless of variety and container volume. Overall, net revenue per container was higher in Expt. II than Expt. I because of the higher rhizome yield. In Expt. I, the higher yield of ginger compared with turmeric increased sales revenue of this species, despite a lower sales price per kilogram. In contrast, the higher yield of turmeric in Expt. II resulted in higher sales revenue and net revenue per container compared with ginger. Based on our results, medium containers could be used to minimize material and space costs for ginger and turmeric production under the conditions evaluated in our study.

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Section: Resultssupporting

confidence: 92%

Section: Resultssupporting

confidence: 86%