Carrot Yield and Shape Altered by Seeding Rate and Raised Beds in Clay-loam Soil
Carrots (Daucus carota L. var sativus) in the midwestern United States are generally raised commercially on sandy-loam or muck soils. Some smaller growers may not have the luxury of an ideal soil type, so raised beds are often recommended to improve taproot growth. To determine specific yield and sh...
Main Author: | |
---|---|
Format: | Article |
Language: | English |
Published: |
American Society for Horticultural Science (ASHS)
2021-05-01
|
Series: | HortScience |
Subjects: | |
Online Access: | https://journals.ashs.org/hortsci/view/journals/hortsci/56/6/article-p722.xml |
id |
doaj-a996637e5ada43d9a76767cfec32d246 |
---|---|
record_format |
Article |
spelling |
doaj-a996637e5ada43d9a76767cfec32d2462021-06-17T21:25:32ZengAmerican Society for Horticultural Science (ASHS)HortScience2327-98342021-05-01566722729https://doi.org/10.21273/HORTSCI15823-21Carrot Yield and Shape Altered by Seeding Rate and Raised Beds in Clay-loam SoilCharlie L. RohwerCarrots (Daucus carota L. var sativus) in the midwestern United States are generally raised commercially on sandy-loam or muck soils. Some smaller growers may not have the luxury of an ideal soil type, so raised beds are often recommended to improve taproot growth. To determine specific yield and shape responses of carrots to raised-bed culture in heavy soil, three hybrids (‘Cupar’, ‘Envy’, and ‘Naval’) were grown in 2019 and 2020 on raised or flat beds in clay-loam soil. In addition, two seeding rates (high or low) were incorporated into the split-split plot design. ‘Cupar’ was larger and less misshapen than the other hybrids, but total marketable yields were similar among all three. ‘Naval’ was the most cylindrical. High seeding rate generally resulted in more numerous but smaller marketable roots and no change in total marketable weight. Raised beds caused a 10.6% increase in total marketable weight by allowing more marketable roots classified as “short” (between 76 and 127 mm long, diameter >25 mm) to grow to lengths more than 127 mm long. The average taproot cylindricity was increased and diameter decreased by growing on raised beds. Soil penetration resistance at 7.6 cm was correlated with many of the measured responses.https://journals.ashs.org/hortsci/view/journals/hortsci/56/6/article-p722.xmlcylindricitydaucus carotaeffects sizeflat bedplant population |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Charlie L. Rohwer |
spellingShingle |
Charlie L. Rohwer Carrot Yield and Shape Altered by Seeding Rate and Raised Beds in Clay-loam Soil HortScience cylindricity daucus carota effects size flat bed plant population |
author_facet |
Charlie L. Rohwer |
author_sort |
Charlie L. Rohwer |
title |
Carrot Yield and Shape Altered by Seeding Rate and Raised Beds in Clay-loam Soil |
title_short |
Carrot Yield and Shape Altered by Seeding Rate and Raised Beds in Clay-loam Soil |
title_full |
Carrot Yield and Shape Altered by Seeding Rate and Raised Beds in Clay-loam Soil |
title_fullStr |
Carrot Yield and Shape Altered by Seeding Rate and Raised Beds in Clay-loam Soil |
title_full_unstemmed |
Carrot Yield and Shape Altered by Seeding Rate and Raised Beds in Clay-loam Soil |
title_sort |
carrot yield and shape altered by seeding rate and raised beds in clay-loam soil |
publisher |
American Society for Horticultural Science (ASHS) |
series |
HortScience |
issn |
2327-9834 |
publishDate |
2021-05-01 |
description |
Carrots (Daucus carota L. var sativus) in the midwestern United States are generally raised commercially on sandy-loam or muck soils. Some smaller growers may not have the luxury of an ideal soil type, so raised beds are often recommended to improve taproot growth. To determine specific yield and shape responses of carrots to raised-bed culture in heavy soil, three hybrids (‘Cupar’, ‘Envy’, and ‘Naval’) were grown in 2019 and 2020 on raised or flat beds in clay-loam soil. In addition, two seeding rates (high or low) were incorporated into the split-split plot design. ‘Cupar’ was larger and less misshapen than the other hybrids, but total marketable yields were similar among all three. ‘Naval’ was the most cylindrical. High seeding rate generally resulted in more numerous but smaller marketable roots and no change in total marketable weight. Raised beds caused a 10.6% increase in total marketable weight by allowing more marketable roots classified as “short” (between 76 and 127 mm long, diameter >25 mm) to grow to lengths more than 127 mm long. The average taproot cylindricity was increased and diameter decreased by growing on raised beds. Soil penetration resistance at 7.6 cm was correlated with many of the measured responses. |
topic |
cylindricity daucus carota effects size flat bed plant population |
url |
https://journals.ashs.org/hortsci/view/journals/hortsci/56/6/article-p722.xml |
work_keys_str_mv |
AT charlielrohwer carrotyieldandshapealteredbyseedingrateandraisedbedsinclayloamsoil |
_version_ |
1721373641111764992 |