Diffusive Resistance and Photosynthetic Rate of Leaves and Root Growth and Activity with Emphasis on Berry Coloration in 'Pione' Grapevines.

Ono, Toshiro; Kubota, Naohiro; Nakayama, Katsuyoshi; Yoda, Seishi; Takagi, Nobutomo

doi:10.2503/jjshs.69.290

Cited by 4 publications

(1 citation statement)

References 7 publications

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“…These charts were so useful that even today; many of them are still in use. In this way, there are color charts developed for persimmons (Yamazaki et al, 1981), potatos (Coleman, 2004), grapefruit (Ono et al, 2000), sweet cherry (Kappel et al, 1996), oil palm (Abdullah et al, 2002), among others.…”

Section: Introductionmentioning

confidence: 99%

PREDICTION OF DAYS AFTER ANTHESIS OF DEVELOPING TOMATO (<i>SOLANUM LYCOPERSICUM</i>) FRUIT FROM BLOSSOM-END CHANGES IN COLOR

Ernesto¹

2013

American Journal of Agricultural and Biological Sciences

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The development of mathematical models to predict the physiological status of a developing fruit can be a useful tool to reduce the variation in fruit response to postharvest treatments. The objective of this study was to develop a mathematical model to predict Days After Anthesis (DAA) in tomato fruit from changes in the blossom end color. Around 160 tomato flowers from 40 plants of a tomato cultivar 'Rutgers' and the nearly isogenic line tomato ripening mutant rin were tagged after artificial pollination and allowed to fruit set. The quantification of color was done from 5 to 85 DAA every 5 days in the tomato fruit blossom-end of both 'Rutgers' and mutant rin using a a Minolta chroma meter CR-300 set in the L*, a* and b* color space. The predictive model was developed using the stepwise procedure in forward selection with DAA as the response variable and all the possible combinations between the next group of regressor: L*, a* and b*, square L*, a* and b*, chroma and Hue angle calculated from measured a* and b* values. It was used the F statistic, mean square error, coefficient of determination, Mallows coefficient and distribution of residuals around zero as indicators of model prediction's efficiency. Correlation coefficients between the different variables measured and the DAA were calculated. The reliability of the statistical analysis was tested by using the nearly isogenic line of 'Rutgers': The non-ripening mutant rin as a comparative control. It was concluded that the statistical procedure used is robust and sensitive enough to identify data not suitable for developing a good predictive model. Also, it is possible to predict the days after anthesis of a developing tomato fruit from changes in the blossom-end color with almost 80% of accuracy.

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Section: Introductionmentioning

confidence: 99%

PREDICTION OF DAYS AFTER ANTHESIS OF DEVELOPING TOMATO (<i>SOLANUM LYCOPERSICUM</i>) FRUIT FROM BLOSSOM-END CHANGES IN COLOR

Ernesto¹

2013

American Journal of Agricultural and Biological Sciences

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Effects of Girdling on Berry Quality of 'Pione' Grapevine

宏之¹,

美樹夫²,

昌二³

et al. 2005

Hort. Res. (Japan)

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New System for Grape Growing under High Density Planting using Fertigation System with Plastic Mulch

Kurafuji¹,

Ogoro²,

Fujii³

et al. 2008

Hort. Res. (Japan)

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This study was conducted to develop a new growing system that combines high density planting and fertigation of grapevines in order to achieve early establishment, and increased production of high quality fruits. Characteristics of the new system include; 1) absence of root restriction, 2) planting more than 800 per 10 a of own-rooted vines, 3) mulching under a canopy of water-proof plastic sheeting, and 4) supply of water and nutrient solution automatically using equipment comprised of an irrigation system, nutrient solution mixing machine and drip tubes. Both 'Pione' and 'Aurora Black' grapevines (Vitis labrusca × V. vinifera) yielded fruits as well as mature vineyard in the second year after planting. When the effects of shoot density on fruit quality and yields of grapevines under this system were investigated, fruits with superior berry size, sugar content and skin color were produced with a combination of 15 clusters and 10 to 20 shoots per meter of fruiting cane. Based on fruit quality and yields obtained over three years periods, we developed a standard model for irrigation and fertilization year-around year.

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Diffusive Resistance and Photosynthetic Rate of Leaves and Root Growth and Activity with Emphasis on Berry Coloration in 'Pione' Grapevines.

Cited by 4 publications

References 7 publications

PREDICTION OF DAYS AFTER ANTHESIS OF DEVELOPING TOMATO (<i>SOLANUM LYCOPERSICUM</i>) FRUIT FROM BLOSSOM-END CHANGES IN COLOR

PREDICTION OF DAYS AFTER ANTHESIS OF DEVELOPING TOMATO (<i>SOLANUM LYCOPERSICUM</i>) FRUIT FROM BLOSSOM-END CHANGES IN COLOR

Effects of Girdling on Berry Quality of 'Pione' Grapevine

New System for Grape Growing under High Density Planting using Fertigation System with Plastic Mulch

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