{A} On a sll fruit farhe Straits of Malacca（马六甲海峡）, LiKok Ann is down to just rowing kedondong, a chy, sour berry that Malaysians stly use in pickles and salads."It''''s not very well-known," says the 45-year-old, who is instead fog on longan berries and pineapples（凤梨）, which have bigger rkets."We have to grow what is profitable," he says.
{B} But less than an hour away in the Malaysian tryside, ihree giant, silver dos, stists are trying to ge the future of food.They''''re pushing the boundaries （界限）of what hu by growing and processing so-called ''''alternative'''' crops 一 such as kedondong.At the headquarters of global research tre Crops For the Future (CFF) this particular under-used fruit has been turned into a sugar-free juice, high in vitan d getting top rks in sensory evaluations（感官评估）."Anything you see here is a fotten crop," says Sayed AzaAli of the abundant plants weaving through the gardens of CFF outside Malaysia''''s capital Kuala Luur.
{C} Prof AzaAli explains that just four crops -wheat, ize（玉米）, rid soybean（大豆） -provide two-thirds of the world''''s food supply."We''''re depe on these four," he says."But actually there''''s 7,000 crops we''''ve been farng for thousands of years. We ignore all of those."Researchers are trying to unlock the potential of these ignored crops -plants they describe as fotten, under-used or ''''alternative'''' as they are displaced by increasingly unifordiets fuelled by processed ingredients frothe jor crops.
{D} It''''s a tily quest.The food sector （部门）is already responsible for nearly a third of global greenhouse gas essions.By 2050 it estites the world st produore food to feed the projected global population of 10 billioing this dend without tributing to clite ge calls fent solutions.
{E}Fotten crops hold key answers.By iing in ed local plants, tries reduce their relianported crops and their carbon-heavy supply s.
Bringing back the va