By James Marson and Andrey Ostroukh in Moscow and Dion Nissenbaum in Istanbul 

Turkey's president on Thursday rebuffed Russian leader Vladimir Putin's request for an apology over the shootdown of a Russian warplane, as Moscow took aim at Turkey's economy, ordering tougher checks on its food imports.

Russia has reacted with fury to the incident and vowed to retaliate by clamping down on trade and business ties. As Russia ramped up its criticism, Turkish President Recep Tayyip Erdogan dismissed Mr. Putin's demands that Ankara apologize or offer compensation to Russia.

"I think if there is a party that needs to apologize, it is not us," Mr. Erdogan said in an interview on CNN International. "Those who violated our airspace are the ones who need to apologize.

Turkish and U.S. officials said the Turkish pilots warned the Russian planes 10 times in five minutes that they were approaching Turkey's airspace and that the requests to shift course went unanswered. The Turkish military later released recordings of the warnings.

But Mr. Putin repeated Russia's position that the aircraft was in Syrian airspace when it was downed, and insisted that Turkey had broken international law.

Turkey's leadership was "intentionally pushing Russian-Turkish relations to a dead end," he said at a meeting with foreign ambassadors, according to the Interfax news agency. "We have heard neither apologies from the high military and political level in Turkey, nor about compensating the damage, nor a promise to punish criminals for the offense committed."

So far, Russia's only action had been to ship one of its most-advanced air-defense systems to its air base in Syria. But on Thursday, Agriculture Minister Alexander Tkachyov ordered tighter control on agricultural products from Turkey, including additional checks at the border and at production sites, saying some Turkish products don't meet Russian standards.

A Kremlin spokesman said the agriculture ministry's move wasn't an embargo.

"But due to increased danger and various extremist developments, naturally, additional checks are being made," Dmitry Peskov said. "It's completely natural, especially given the unpredictable actions in the case of the Republic of Turkey."

Russia's introduction of tougher inspections on foodstuffs frequently coincides with heightened tensions with the country affected, including a ban on wine from Georgia from 2006 and restrictions on various Ukrainian products in the last two years. Russia banned European food products last year in response to Western sanctions over Moscow's interventions in Ukraine.

The Russian Agriculture Ministry said in a statement that it analyzed Turkish food imports after consumers and industry associations raised the issues. The ministry found that 15% of Turkish agricultural products didn't meet Russian standards, he said.

There have been 40 cases since the start of the year where officials found traces of harmful and prohibited substances in animal products, and excessive amounts of pesticides and nitrates have been found in fruit and vegetables, he said.

Russia's consumer watchdog has already withdrawn more than 800 kilograms (1,800 pounds) of Turkish foodstuff from stores across Russia, the Interfax news agency reported.

Russia could suffer an increase in inflation, already running around 15%, as Turkey is among the top suppliers of fruit and vegetables to Russia with a share of the market between 15% and 20%, Nomura bank said. Russian Deputy Finance Minister Maxim Oreshkin said he didn't see "radical risks" for the ruble and inflation from worsening relations between Russia and Turkey, Interfax reported.

Russia's imports from Turkey as well as from other countries has already shrunk substantially as the ruble lost more than 40% of its value against the dollar over the past year.

According to Russia's customs service, imports from Turkey, which accounts for 4.6% of Russia's international trade turnover, fell by 38.5% in the first nine months of this year.

Write to Andrey Ostroukh at andrey.ostroukh@wsj.com and James Marson at james.marson@wsj.com

(END) Dow Jones Newswires

November 26, 2015 09:58 ET (14:58 GMT)