* FTSE 100 down 0.2 percent
* Miners slip on China interest rate rise
* Banks lower as Moody's cuts Portugal's debt rating
By Tricia Wright
LONDON, April 5 (Reuters) - Britain's top share index edged lower on Tuesday as miners fell on concerns that an interest rate hike in China could hurt demand for metals and banks dropped on worries over European debt.
The FTSE 100 closed down 9.92 points, or 0.2 percent, at 6,007.06, having rallied 7.4 percent off lows hit in March following the earthquake in Japan.
Miners were among the biggest laggards after China's central bank increased interest rates for the fourth time since October.
Banks fell after credit ratings agency Moody's cut Portugal's sovereign debt by one notch, saying it believed an incoming government would need to seek financing support from the European Union as a matter of urgency.
Barclays and Lloyds Banking Group shed 0.5 percent and 1.2 percent, respectively.
Concerns were mounting as to how cyclical assets were going to fare against the backdrop of global monetary tightening.
"Interest rates are rising in the developing world, we are going to get an ECB (rate) increase this week, and maybe in June we're going to see the Fed bringing its QE (quantitative easing) to an end -- all of this suggests that the tide is turning a bit," Mike Lenhoff, chief strategist at Brewin Dolphin, said.
"We could be entering a phase where maybe the defensive (stocks) begin to show a bit of leadership."
OIL PRICE WATCHED
Observers also said an elevated oil price created conditions for weakness in equities, with Brent crude topping $122 a barrel on Tuesday on unrest in oil exporting countries in the Middle East and Africa.
"At some point these prices are going to be impacting costs and margins, and obviously if you're increasing costs, you're going to have to increase prices, and if you can't... then you're going to shrink your margins," Michael Hewson, analyst at CMC Markets, said.
"While (the FTSE 100) is below 6,050 (its highs in March), I think we'll come lower, and we'll test the 5,900 levels that we saw at the end of last week."
Among individual stocks, heavyweight Vodafone dropped 1.5 percent, with traders citing a downgrade to "reduce" by Evolution Securities.
The share price falls also came as Nomura cut its estimates on the mobile communication firm, citing impending changes to Indian telecom policy and a tough Spanish outlook.
Vedanta Resources grabbed the top spot on the blue-chip leader board, up 4.4 percent, after its chairman said he believed the Indian government would approve its plan to buy Cairn Energy's India assets in the next few days.
Meanwhile, TUI Travel rose 2.4 percent on news its German parent TUI AG has found an alternate route to exit its container shipping business Hapag-Lloyd after putting on ice plans for a flotation.
Insurance consolidator Resolution climbed 3.2 percent, boosted as Citigroup raised its target price. (Additional reporting by David Brett; Editing by Erica Billingham)