On the other hand, trials at CIMMYT's principal wheat-breeding station at Obregon in Mexico indicate a slowdown in potential yield growth to only 0.4% a year.

可另一方面，国际玉米和小麦改良中心在墨西哥奥布雷贡的小麦育种站做的试验表明，小麦产量的年增长率可能降至0.4%。

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Vegetable cultivation, on the one hand to promote vegetable seed breeding and purification rejuvenation, so varieties of vegetable seed headed more than 90% coverage;

蔬菜种植中，一方面大力推广蔬菜良种繁育和提纯复壮，使当家品种蔬菜良种覆盖率达到90%以上；

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Parents are "breeding ineptitude, " by allowing and in some cases encouraging children to hand off those jobs, says Hara Estroff Marano, author of "A Nation of Wimps" and editor-at-large at Psychology Today.

WSJ: Forget the Old College Try, Ring the Concierge