Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Pos of root protoplasts isolated from 11-d-old plants of two maize genotypes differing in chilling sensitivity (Z7, tolerant and Penjalinan, sensitive). A, Histograms of the number of protoplasts included in each Pos range; plants were kept at 25°C (control, white columns) or transferred for to 3 d at 5°C (chilled, black columns). Z7, Top section and Penjalinan, bottom section. B, The columns represent mean ± se (n = 30) of each treatment. Otherwise as for Figure 1.
