Stocks rally as Buffett boosts Apple, oil eyes $50

By Jamie McGeever LONDON (Reuters) - World shares rose on Tuesday as technology giant Apple Inc's biggest rise in over two months and oil's march higher to within sight of $50 a barrel boosted investor demand for riskier assets at the expense of safe-haven bonds. The major European stock markets rose around 1 percent in early trading, following similar gains in Asia after Wall Street also chalked up a 1 percent rise on Monday. Investors will be looking to see how long the rally is sustained for