Summary Box: Wheat prices climb as investors worry about weather in Russia, Kazakhstan, Canada

Summary Box: Wheat rises on weather worries

WHEAT RALLY: Wheat prices rose for a fourth day Tuesday as investors grow concerned about how weather might affect crop production in Canada, Russia and Kazakhstan.

WEATHER WOES: Analysts say wet weather will at the very least delay harvesting of wheat in Canada. Hot, dry weather in Russia and Kazakhstan could reduce the output for farmers there.

AMERICAN BENEFIT: American farmers would benefit from any delay or drop in output of foreign wheat.