Many stresses not only shorten the lives of plants, but also affect their growth and productivity ... the coldest hardiness zone in the lower 48 states on the new map, 3a, covers small pockets ...

If you look at the USDA climate zone or Sunset climate zone map, you will note that one zone ... Yet there is one important limiting factor to growth that these maps don’t acknowledge and ...

Wu Jiaxi, deputy director of the ministry's department of research commercialization and regional innovation, said the high-tech zones have proved to be resilient to risks and can achieve growth ...