المستودع الأكاديمي جامعة المدينة

Fruit size, mineral composition and quality of trickle-irrigated tomatoes as affected by potassium rates

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dc.creator Fontes Paulo Cezar Rezende
dc.creator Sampaio Regynaldo Arruda
dc.creator Finger Fernando Luiz
dc.date 2000
dc.date.accessioned 2013-05-29T23:57:15Z
dc.date.available 2013-05-29T23:57:15Z
dc.date.issued 2013-05-30
dc.identifier http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2000000100003
dc.identifier http://www.doaj.org/doaj?func=openurl&genre=article&issn=0100204X&date=2000&volume=35&issue=1&spage=21
dc.identifier.uri http://koha.mediu.edu.my:8181/jspui/handle/123456789/2929
dc.description An experiment was conducted to determine the fruit size, mineral composition and quality of trickle-irrigated tomatoes as affected by potassium fertilizer rates. Six potassium (K) rates were applied as KCl, corresponding to 0, 48.4, 118.6, 188.8, 259.0 and 399.4 kg ha-1, with four replicates, following a randomized block design. Quadratic responses to K rates were observed for double extra large (diameter > 60 mm), extra large (56 to 60 mm) and large (52 to 56 mm) fruit yields. Maximum yields of these classes were achieved with K rates of 116, 190 and 233 kg ha-1, respectively. Fruit dry matter, phosphorus, sulfur and magnesium contents were not affected by K rates, but nitrate and K contents showed significant increments as K rates were increased. Vitamin C, total soluble solids, lycopene and beta-carotene contents in the fruits were not affected by K rates. Increments in the K rate lowered the fruit pH and increased total acids content.
dc.publisher Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
dc.source Pesquisa Agropecuária Brasileira
dc.subject Lycopersicon esculentum
dc.subject lycopene
dc.subject soluble solids
dc.subject acidity
dc.title Fruit size, mineral composition and quality of trickle-irrigated tomatoes as affected by potassium rates


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