White Asparagus Production with Opaque Film in Rootstock Planting Forcing Culture

Jishi, Tatsuru; Shiga, Yoshihiko; Konno, Kenjiro; Tanaka, Shizuyuki

doi:10.2503/hrj.7.241

Cited by 11 publications

(9 citation statements)

References 10 publications

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“…The plants were grown and harvested according to ordinary farming management practices for long-term harvesting using a mother-fern cultivation system commonly used in Hokkaido, except for the method for white-spear production in spring. All the asparagus rows were covered on April 8, 2009 using a tunnel (4 × 37 m; height, 2.0 m) with shading film (White-Silver; Tokankosan Co., Ltd., Tokyo, Japan), as described in previous studies (Jishi et al, 2008(Jishi et al, , 2009Maeda et al, 2012). White spears started to emerge around April 20.…”

Section: Methodsmentioning

confidence: 99%

“…Although green asparagus is the commonly cultivated form in Japan, the consumption of fresh white asparagus has increased because of its pleasing taste. White asparagus is produced using two blanching methods to block sunlight: the soil-mound and the film-cover methods (Jishi et al, 2008Jishi and Tanaka, 2009;Maeda et al, 2012). The soil-mound method has been widely used in many countries, including Japan (Heissner et al, 2006;Motoki, 2003;Siomos, 1996); however, the film-cover method is becoming popular in Japan because of its ease of harvesting.…”

Section: Introductionmentioning

confidence: 99%

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Methyl Jasmonate Treatment Enhanced Protodioscin Biosynthesis in White Asparagus (Asparagus officinalis L.) Spears

Maeda

Jishi

Komura

et al. 2012

J. Japan. Soc. Hort. Sci.

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The objective of this study was to clarify the factors that influence saponin biosynthesis, with an emphasis on protodioscin, a major saponin compound in white asparagus spears. We investigated the effects of methyl jasmonate (MeJM) treatment on protodioscin content in white spears harvested by spring semi-forced and winterforced cultivation. Protodioscin content was determined using high performance liquid chromatography equipped with an evaporative light scattering detector. Protodioscin was mainly localized in the lower region of the spears. In the spring semi-forced cultivation system using the film-cover method, the protodioscin content in white spears harvested from the MeJM plot was significantly higher than in those harvested from the control plot throughout the sampling period. MeJM also significantly enhanced protodioscin biosynthesis in a dose-dependent manner in the experiment conducted under winter-forced cultivation. These results suggest that saponin biosynthesis in white spears is associated with plant defensive reactions triggered by jasmonate. In addition, bitterness in filmcovered white spears could be artificially controlled in commercial fields by MeJM treatment.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Methyl Jasmonate Treatment Enhanced Protodioscin Biosynthesis in White Asparagus (Asparagus officinalis L.) Spears

Maeda

Jishi

Komura

et al. 2012

J. Japan. Soc. Hort. Sci.

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“…The rootstock-planting forcing culture technique, known as "Fusekomi," uses dug-up rootstocks taken after one-season of harvesting during the off-crop season, and has recently been developed and publicized in Japan (Goto et al, 1994;Jishi et al, 2008). Larger spears and early sprouting are especially favored in this culture for higher yield; therefore, it is important to clarify and evaluate the productive traits of the male and female plants (Koizumi et al, 2002(Koizumi et al, , 2003.…”

Section: Introductionmentioning

confidence: 99%

Productive Differences between Male and Female Plants in White Asparagus Production Using the Rootstock-planting Forcing Culture Technique

Uragami

Ueno²,

Yamasaki

et al. 2016

The Hortic J

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This study analyzes the first large-scale asparagus experiment in Japan to examine the productive differences between male and female plants using the rootstock-planting forcing culture technique. This technique has recently been developed in Japan and uses dug-up rootstocks for one-season harvests during the off-crop season. As larger spears and early sprouting are especially favored in this culture for higher yield, it is important to clarify and evaluate the productive traits of the male and female plants. We conducted collaborative research among eight institutes from Hokkaido to Kyushu to examine plants grown at different cultivation sites. There were two digging-up months and different low-temperature backgrounds. Plant rootstocks sourced from the eight different sites used in the experiment were cultured in an abandoned tunnel in Nagano Prefecture, Japan, in a large area with uniform temperature and high humidity throughout the year, and their white spears were harvested. The results of this study show that the female plants had a significantly higher rootstock weight, weight per spear per plant, and weight per early spear per plant, whereas the male plants had a significantly higher total spear number per plant, early spear number per plant, and significantly fewer days to first harvest. No significant differences were observed in soluble solid contents of roots, total spear weight per plant, or early spear weight per plant. It seems that male plants have a tendency to sprout earlier than female plants in response to reduced accumulated low temperature hours, and also to produce a higher total spear number per rootstock weight and total spear weight per rootstock weight. The ranges of most of the productive traits analyzed in this study completely overlapped between the sexes. However, female plants showed higher variation in weight per spear per plant and weight per early spear per plant.

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“…A single cropping system by forcing culture with 1-yearold rootstocks has been proposed for white asparagus production in Japan (Jishi et al, 2008;Jishi and Araki, 2013). In such a system, controlling the sprouting period is important because the market price directly depends on the sprouting season.…”

Section: Introductionmentioning

confidence: 99%

Combination of low oxygen and high carbon dioxide treatmentsalters sprouting of white asparagus

Kitazawa¹,

Hasegawa²,

Nagata³

et al. 2016

Turk J Agric For

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A single cropping system with 1-year-old rootstocks by forcing culture has been proposed for white asparagus (Asparagus officinalis) production in Japan. To develop a method to control the sprouting period for such a cropping system, we investigated the effects of low oxygen (O 2 ), high carbon dioxide (CO 2 ), and a combination of these on the sprouting of asparagus spears, using a laboratory-scale test. We stored the rootstocks without soil for 6 weeks in six treatment conditions (20% O 2 , control; 20% O 2 + 8% CO 2 ; 20% O 2 + 16% CO 2 ; 8% O 2 ; 8% O 2 + 8% CO 2 ; and 8% O 2 + 16% CO 2 ). After storage, we planted the rootstocks in pots with soil and investigated their yield performance for 20 weeks. Only the 8% O 2 + 16% CO 2 treatment applied during rootstock storage suppressed the sprouting of spears. The number of harvested spears and the yield of spears per plant in the 8% O 2 + 16% CO 2 treatment was higher than in control at the 16-20-week period, although the weight per spear did not differ. We suggest that the extension of sprouting after planting was due to the suppression of sprouting during rootstock storage. Our results suggest that controlling atmospheric O 2 and CO 2 concentrations around the rootstock during storage could be a new, effective method to alter the harvest period of white asparagus, including cultivation of fresh asparagus in a single cropping system with forcing culture.

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White Asparagus Production with Opaque Film in Rootstock Planting Forcing Culture

Cited by 11 publications

References 10 publications

Methyl Jasmonate Treatment Enhanced Protodioscin Biosynthesis in White Asparagus (Asparagus officinalis L.) Spears

Methyl Jasmonate Treatment Enhanced Protodioscin Biosynthesis in White Asparagus (Asparagus officinalis L.) Spears

Productive Differences between Male and Female Plants in White Asparagus Production Using the Rootstock-planting Forcing Culture Technique

Combination of low oxygen and high carbon dioxide treatmentsalters sprouting of white asparagus

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