Scientists in India have discovered a way to make bamboo
plants produce flowers in laboratory. The British (36)
Nature recently reported the (37) event. In the wild it can
take as long as one hundred and twenty years for some kinds of bamboo to flower,
and after the plant (38) its seeds it dies. The bamboo plant
is used in many different ways. But because it takes so long to produce seeds,
scientists never (39) it a traditional farm crop. The recent
(40) in India may change that. The (41)
was done at the National Chemical Laboratory in India. Three scientists cut two
hundred pieces from two different kinds of bamboo plants; each was a few
(42) long. The tiny cuttings were placed in the
(43) of coconuts milk, plant-growth hormone and other
nutrients. Just a few weeks later, flowers began to appear. (44)
. Two weeks after that the plants began to produce seeds.
(45) . One of them had not put the bamboo seeds in soil, but
he believes they will produce plants. The Indian scientists now are planning
experiments to see (46) . Bamboo reproduces in two ways. It
flowers and produces seeds. It also produces new growth from its roots. Bamboo
plants growing from its roots are called ZhuSun in China. Bamboo shoots are dug
up and replanted in the field. Farmers harvest the leaves. They feed them to
their animals.
【参考答案】
In the wild,it will take thirty years for these kinds of bam......