SSS 2011-12-21
时间:2012-01-13 05:50:41
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(单词翻译)
spiciness is chilli pepper's best
defense1 against seed attacking microbes.but not all chillis are hot, because producing that heat comes at a price.so says a study in journal
proceeding2 the royal society b.researchers look at wild chilli populations along a 185 miles * in southern Bolivia as climate goes from wet to dry.as it said, they taste tested chillies for heat,later they analysed samples for concentrations of *,
spicy3 stuff. turns out only a 1/5 of chilli plants in dry region have heat. but in wet areas all the chillis will become there.because that's where
fungi4 attack the peppers. and chillis need chemical weapons to protect their seeds.but there is a cost for that defense,spicy chilli plant in this study use water far less
efficiently5. during the period of drought, they produce only half as many seeds as their mild cousins. as for home gardeners hoping to grow spicy chillies,don't figure on simply watering your garden one.the authors say dislike the spicy
gene6 you have to tend that pepper patch for 20000 generations.
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