When the top of the main shoot is removed by pruning or breakage the auxin is no long produced.
VOA: special.2009.10.06
That means early signs of economic recovery, like the way plants begin to shoot up from the ground as a sign of spring.
VOA: special.2009.05.08
Ottoline Leyser from the University of York says that after a plant is pruned, all the inhibited shoot tips compete with each other to grow.
VOA: special.2009.10.13
"Try to shoot it myself, instead of go to the store to buy it.
VOA: special.2009.11.23
The study found that the main shoot grows the best of all not because of its position at the top of the plant, but mostly because it got there first.
VOA: special.2009.10.13
North Korea says attempts to shoot down its rocket will be an act of war, and that any additional U.N.
VOA: standard.2009.03.27
Telling white pioneers that they could no longer shoot game in the boundaries of Yosemite National Park to feed their families or cut down trees for firewood was much harder.
VOA: standard.2009.11.25
As Russia struggles in the embrace of the worst drought since 1880, the Kremlin worries that food prices will shoot up, blowing apart inflation targets for this year, a year before parliamentary elections.
VOA: standard.2010.07.23
应用推荐