"I'm trying three methods of breeding," Farrant says: conventional, genetic modification and gene editing.
2018年6月六级真题（第一套）阅读 Section B
"My vision is for the subsistence farmer," Farrant says.
2018年6月六级真题（第一套）阅读 Section B
"The yield is never going to be high," Farrant says, so these plants will be targeted not at Iowa farmers trying to squeeze more cash out of high-yield fields, but subsistence farmers who need help to survive a drought like the present one in South Africa
2018年6月六级真题（第一套）阅读 Section B
Also last year, Farrant and colleagues published a detailed molecular study of another candidate, Xerophyta viscosa, a tough-as-nail South African plant with lily-like flowers, and she says that a genome is on the way.
2018年6月六级真题（第一套）阅读 Section B
As the plant dries, these resources take on first the properties of honey, then rubber, and finally enter a glass-like state that is the most stable state that the plant can maintain, Farrant says.
2018年6月六级真题（第一套）阅读 Section B
At the start of her career, Farrant studied "recalcitrant seeds (顽物性种子)," such as avocados, coffee and lychee.
2018年6月六级真题（第一套）阅读 Section B
Biologist Jill Farrant of the University of Cape Town in South Africa says that nature has plenty of answers for people who want to grow crops in places with unpredictable rainfall.
2018年6月六级真题（第一套）阅读 Section B
Farrant and others in the resurrection business got together last year to discuss the best species of resurrection plant to use as a lab model.
2018年6月六级真题（第一套）阅读 Section B
Once Farrant and her colleagues feel they have a better sense of which switches to throw, they will have to find the best way to do so in useful crops.
2018年6月六级真题（第一套）阅读 Section B
The type of farming I'm aiming for is literally so that people can survive as it's going to get more and more dry, Farrant says.
2018年6月六级真题（第一套）阅读 Section B
They may be able to handle a drought of some length, and many people use the term "drought tolerant" to describe such plants, but they never actually stop needing to consume water, so Farrant prefers to call them drought resistant.
2018年6月六级真题（第一套）阅读 Section B