Effects of Pinching and Lowering on Cucumber Yield and Yield Components

Higashide, Tadahisa; Gotoh, I.; Suzuki, Katsumi; Yasuba, Ken‐ichiro; Tsukazawa, Kazunori; Ahn, Dong-Hyuk; Iwasaki, Yasunaga

doi:10.2503/hrj.11.523

Cited by 15 publications

(12 citation statements)

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“…The growth characteristics and yield components have a large impact on crop yield and they can be organized into a hierarchical structure that explains the impacts of the various environmental factors on crop yield (Higashide and Heuvelink, 2009). In the past decade, studies on tomato and cucumber have identified several yield components and growth characteristics, and shown that fruit yield is positively correlated with dry matter production (Higashide and Heuvelink, 2009;Higashide et al, 2012aHigashide et al, , b, 2015Kaneko et al, 2015). Saito et al estimated tomato plant growth and dry matter production as a function of the environmental conditions (Saito et al, 2020b) and used those estimates to construct a model for yield prediction (Saito et al, 2020a).…”

Section: Introductionmentioning

confidence: 99%

Examination of Yield Components and the Relationship Between Dry Matter Production and Fruit Yield in Greenhouse Sweet Pepper (<i>Capsicum annuum</i>)

et al. 2021

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To improve the yield of sweet peppers in Japan, we investigated the relationships between plant growth characteristics and fruit yield, with a particular focus on dry matter production. Fruit fresh weight (i.e., fruit yield) was highly correlated with fruit dry weight. Aboveground dry matter production was correlated with both light use efficiency and intercepted photosynthetically active radiation. Although the number of fruits was correlated with the fruit set ratio, no correlation was found between the number of fruit and fraction of dry matter distributed to fruit. The correlation between the fraction of dry matter partitioned to fruit and fruit dry weight varied by plant stage, potentially due to the yield fluctuation called "flush". Together, these findings suggest that to improve the yield of sweet peppers in Japan, we should focus first on improving light use efficiency.

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Section: Introductionmentioning

confidence: 99%

Examination of Yield Components and the Relationship Between Dry Matter Production and Fruit Yield in Greenhouse Sweet Pepper (<i>Capsicum annuum</i>)

et al. 2021

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“…In other words, the initial increase in LAI is directly related to the yield in short-term cultivation, but the planting density results of Higashide et al (2012a) were 1.48 plants•m −2 and 0.99 plants•m −2 using the lowering and pinching methods, respectively, suggesting that the lowering method may not be suitable for short-term cultivation. In addition, Japanese cultivars have a low rate of female flowering on the main branches.…”

Section: Training Methodsmentioning

confidence: 96%

“…Considering this result from the viewpoint of the yield component, the increase in the number of fruits due to the increase in the number of nodes, and the increase in the amount of light reception due to the increase in the LAI caused by extending the side branches are the causes of the increase in the yield. Higashide et al (2012a) analyzed the effects of the lowering and pinching methods on dry matter production and yield in short-term cultivation from the yield components, and found that the pinching cultivation had a higher yield than that of lowering. They stated that the result was due to a higher proportion of fruit dry matter and total dry matter.…”

Section: Training Methodsmentioning

confidence: 99%

“…According to studies by Higashide et al (2012a) and Iwasaki et al (2014), the light extinction coefficient of cucumber defined by Monsi and Saeki (1953) ranged from 0.8 to 1.69, while that of tomato was in the range of 0.6 to 1.0 (Higashide and Heuvelink, 2009;Higashide et al, 2012b), so cucumber has a higher light extinction coefficient than tomato. This indicates that the amount of intercepted light varies even with the same leaf area index (LAI) management.…”

Section: Yield Componentsmentioning

confidence: 99%

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A Review of Japanese Greenhouse Cucumber Research from the Perspective of Yield Components

Maeda

Ahn

2021

Hortic J

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Japanese cucumbers are unique in terms of their production methods, such as steamed cultivation in which the greenhouse is closed to increase the temperature and humidity. Moreover, Japan has strict standards for fruit size. Therefore, most research on greenhouse cucumbers in Japan has focused on pests, diseases and fruit quality, and few studies have focused on increasing yields. Therefore, we aimed to contribute to a yield improvement in Japanese greenhouse cucumber production by considering environmental factors and training methods based on the yield components. Here, we discuss different training systems, pinching and lowering methods, and the effects of environmental factors such as temperature, humidity, CO 2 concentration, irrigation, and nutrition on yield and yield components. Moreover, this paper also proposes future areas of research for Japanese greenhouse cucumbers.

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“…PAR was assumed to be 43% of the global radiation for PO and 58% of the global radiation for TBF based on actual measurements. Light use efficiency (LUE) was calculated based on the method described by Itoh et al (2020) and Higashide et al (2012). We estimated the cumulative intercepted PAR by calculating daily LAI based on destructive analysis at transplanting, pinching, and the end of the cultivation and daily PAR based on the climate data recorded by the Ishigakijima local meteorological observatory (lat.…”

Section: Methodsmentioning

confidence: 99%

The Effect of Greenhouse Cultivation Under a Heat Insulation Film Covering on Tomato Growth, Yield, and Fruit Quality in a Subtropical Area

et al. 2021

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The growth and yield of tomatoes in greenhouses covered by heat insulation film were investigated in Ishigaki, a subtropical area of Japan with high temperature and high solar radiation. High-density planting of tomatoes was carried out in June, July, August, October, and November, with a low node-order pinching system. The plants were grown in two greenhouses, one covered by a thermal barrier film (TBF) for heat insulation and the other covered by a polyolefin film (PO). Under TBF, the maximum temperature was up to 3.6°C lower than that under PO, and the mean temperature was 0.4°C lower. The leaf area index (LAI) of the June planting was 3.0 under TBF and 3.4 under PO, significantly lower than the LAIs of the other plantings, which ranged from 3.9 to 5.4. The specific leaf area (SLA) varied with the cultivation season, with that under TBF and PO being highest in November plantings grown in winter. SLA under TBF was higher than that under PO in the same cultivation seasons. The amount of total aboveground dry matter was significantly lower in the June planting under TBF and showed no difference in other plantings. Distribution to fruit was higher under TBF than under PO, especially in summer cultivation. The yields under TBF were significantly higher than those under PO in the July planting, and the yields under PO were significantly higher in the November planting. Under TBF, the rate of fruit cracking was reduced in the June, July, and August plantings. Under TBF and PO, plantings in October and November produced puffy fruits. The light use efficiency under TBF was higher than that under PO in the same cultivation seasons, apart from the June planting. Tomato cultivation under TBF reduced the damage from intense solar radiation during summer. TBF enabled penetration of sufficient solar radiation to distribute photosynthates to each part of the plant because of a limited sink and abundant solar radiation in a subtropical summer. These results indicate that TBF and sink-limited cultivation are effective systems for use in the high temperature and high solar radiation environments of tropical and subtropical regions. Key Words: leaf area index (LAI), light use efficiency (LUE), low node-order pinching and high-density planting, partition rate, plant factory.

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Effects of Pinching and Lowering on Cucumber Yield and Yield Components

Cited by 15 publications

References 5 publications

Examination of Yield Components and the Relationship Between Dry Matter Production and Fruit Yield in Greenhouse Sweet Pepper (<i>Capsicum annuum</i>)

Examination of Yield Components and the Relationship Between Dry Matter Production and Fruit Yield in Greenhouse Sweet Pepper (<i>Capsicum annuum</i>)

A Review of Japanese Greenhouse Cucumber Research from the Perspective of Yield Components

The Effect of Greenhouse Cultivation Under a Heat Insulation Film Covering on Tomato Growth, Yield, and Fruit Quality in a Subtropical Area

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