植物界的互惠共生(2/2)
概述：某些对养分、土壤和水分有相似需求并兼容的植物可以一起互利生长，但是有些相互起反作用需要分开。Hints:
watercress
ethylene
apricot
asparagus
broccoli
cabbage
nectarine
p.s. 1'05''左右有一处连字符
校对：OFELIA1030
翻译&注解：StepHanie_Lu
组长：lahmmsc
答疑：kiwiangle
发音点评：winshare2012
本期材料发音模仿地址：http://bulo.hujiang.com/menu/11885/item/743347/
http://t1.g.hjfile.cn/listen/201303/201303150826463487265.mp3But some plants placed together may harm each other's development. For example, tomatoes do not like wet soil but watercress does, so you would probably want to keep them separated.
Some kinds of produce should be kept apart even after being harvested. This is because of ethylene gas. Ethylene is a plant hormone that can cause some foods to ripen too quickly. Apples release ethylene gas. Apricots, melons and tomatoes also release a lot of ethylene. Some vegetables are easily affected by ethylene, including asparagus, broccoli, cabbage and cucumbers.
This risk of ripening too soon is why markets often separate high ethylene-producing foods from those that are sensitive to the gas.
But if you put an apple in a bag with a green banana, the ethylene from the apple will make the banana ready to eat sooner.
What about peaches, plums and nectarines? These kinds of fruit do not need any help from an apple, they release enough ethylene to ripen themselves. But that does not mean there is no way to get the job done faster.
Growers suggest placing the fruit in a fruit bowl or in a paper bag with the top folded over. Keep the fruit at room temperature, out of direct sunlight. Once the fruit is soft enough, either use it or put it in the refrigerator to keep it from getting too ripe.但是将有些植物种植在一起的话会影响各自的生长。例如番茄不适合在湿润的泥土上种植，但西洋菜却可以。所以你最好将它们分开种植。
有些植物在收割后仍然需要与其他植物分开放置。这是由于乙烯的缘故。乙烯是植物蕴含的一种荷尔蒙，这种荷尔蒙能使植物尽早成熟。苹果、杏子、甜瓜还有西红柿都会释放乙烯。一些蔬菜很容易受到乙烯的影响而早熟，例如芦笋、西兰花、包菜和黄瓜。
正是为了避免蔬果早熟，市场才将释放大量乙烯的食物和对乙烯敏感的食物分开放置。
但是，如果你将苹果和一个青香蕉放在一个袋子里的话，苹果所释放的乙烯会促使香蕉尽早成熟。
那桃子、李子和蜜桃又会如何呢？这类水果不需要苹果的帮助，它们自己所释放的乙烯就足以使自己成熟。但这也并不代表不能进一步缩短它们的成熟时间。
种植者建议将水果放在一个密封的碗里或纸袋子里。将水果放置在室温下，避免阳光直射。只要水果足够柔软了，就可以食用或者将其放到冰箱里储存避免熟透。
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