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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

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Journal Article

Статья в журнале

Potassium nutrition increases the lycopene content of tomato fruit  [2007]

Serio, F.; Leo, J. J.; Parente, A.; Santamaria, P.;

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To determine the influence of potassium levels in the nutrient solution on lycopene content, tomato plants were grown in a soil-less system using rockwool slabs as substrate. Two growing seasons were studied with the aim of comparing three potassium levels: low, medium and high (corresponding to 150, 300 and 450 mg K l–1 in the nutrient solution). In the first growing season (Spring–Summer), two high-pigment cultivars of tomato (Solanum lycopersicum L.,‘SVR’ and ‘Kabiria’) were compared. In the second growing season (Summer–Winter) ‘Esperanza’, a non high-pigment hybrid and the two previous cultivars were used. Total fruit yield was higher in the Summer–Winter growing season than in the Spring–Summer season, but was not influenced by potassium nutrition. Growing season, potassium level, and the genetic traits of the cultivars influenced the principal quality parameters of fruit, with higher dry matter and total soluble solids contents in the first growing season, correlating with lower lycopene and K+ contents in the fruit. The lycopene content increased linearly with increasing potassium level in the nutrient solution. The high-pigment genotypes showed a higher lycopene content than ‘Esperanza’.The higher lycopene content in ‘Kabiria’ fruit can also be related to the size of the fruit.
Журнал
Journal of horticultural science & biotechnology
ISSN : 1462-0316

Библиографическая информация

Язык:
English
Тип:
Journal Article
В АГРИСе с:
2018
Том:
82
Выпуск:
6
Экстент/Размер:
941-945
Издатель:
Headley Brothers Ltd.
Все названия:
"Potassium nutrition increases the lycopene content of tomato fruit"@eng
Другое:
"Includes references"
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Библиографическая информация

Язык:
English
Тип:
Journal Article
В АГРИСе с:
2018
Том:
82
Выпуск:
6
Экстент/Размер:
941-945
Издатель:
Headley Brothers Ltd.
Все названия:
"Potassium nutrition increases the lycopene content of tomato fruit"@eng
Другое:
"Includes references"