* Czech sells more of 10-year bond than planned
* Yield rises, longer-dated papers under pressure
(Updates with top-up round, background)
PRAGUE, June 3 (Reuters) - Demand held up for a Czech 10-year bond auction on Wednesday but the yield rose from previous auctions as global supply issues and concerns over rising Czech government debt took a toll on pricing.
The Czech Finance Ministry sold 8.19 billion crowns ($437 million) worth of 5.00 percent coupon government bonds due in 2019 <CZ1002471=> to investors.
Investor demand reached 13.54 billion crowns, more than the 8 billion on offer. The average yield rose to 5.757 percent from 5.479 in an April auction. A March inaugural auction had shown an average yield of 5.619 percent.
"I would have expected slightly lower demand but it is nothing special although it is not disappointing," said Komercni Banka fixed income trader Dalimil Vyskovsky.
He said lower prices and rising swap spreads, up around 20 basis points this week, are indicative of the direction the market is going in. "This auction gives some more insight for the next long auction," he said.
The 10-year yield on the secondary market ticked lower after the auction to trade at 5.849/5.638 percent, up around 44 basis points in the past three weeks, according to Reuters data.
The German 10-year yield <DE10YT=RR>, Europe's benchmark, has risen 27 basis points to 3.585 percent in that time, showing investors pricing in a growing premium to lend to the Czech Republic.
Czech interest rate swap yields have also jumped around 20-30 basis points on the longer end since mid-May, tracking global yield curves higher as inflation concerns grow on the back of the amount of supply hitting markets.
Barclays Capital recommended on Tuesday paying Czech 10-year interest rate swaps at 3.96 percent, targeting a rise to 4.80 percent over the next six months, due to the likely end of interest rate cuts and rising government debt. [
]The Czechs have also doubled this year's borrowing plan to 280 billion crowns, although they have secured a good chunk in auctions since March, including with a euro-denominated bond.
Finance Minister Eduard Janota said at the end of last month it has already covered 180 billion of its plan.
"It is still a relative success that the finance ministry was able to sell this amount (in today's auction) given that we have a lot of negative news circulating about future supply," said Jan Cermak, markets analyst at CSOB bank.
The export-reliant Czech economy, like others in central Europe, has dropped with falling western demand for its cars, auto parts and electronics, with the government deficit tripling this year to an expected 4.5 percent of gross domestic product.
Central European debt markets have been boosted since March by pledges of aid for countries in need, helping risk sentiment. But a fall in yields has slowly started to reverse.
Polish auctions since March have stayed well-bid, with all shorter-dated 2-year and 5-year bonds on offer being sold at auction on Wednesday. [
] * For a TABLE on Wednesday's auction click on [ ] (Reporting by Jason Hovet; editing by Mike Peacock)