Decreased tolerance
2.Under 300 mmol L -1 NaCl stress, the content of Na + increased, the contents of K +, chlorophyll(chl) and K +/Na + ratio decreased in the leaves of two barley varieties differing in salt tolerance. The positive correlation between glutathion(GSH) content and K +/Na + ratio as chlorophyll content was significant.
3.In three types of halophytes, leaf Na+ and Cl" contents were significantly increased with the severity of the stress (0-400 mmol/L), whereas K+ content and osmotic potential of the cell sap of leaf were drastically decreased. The results showed that different halophytes had different salt-tolerance and the similar osmotic adjustment.
6.The results showed no unfavorable influence of nifedipine on glucose tolerance. TG and TC were decreased while HDL-C HDL_2-C and HDL-C/TC were increased significantly. Nifedipine might be a better medicine for the treatment of essential hypertension and prevention of vascular complications of the heart and brain.
8.The results showed that the tolerance to pyrethroids was related to the activity of carboxylestense in masson pine carterpillar The activity of carboxylesterase was higher in population more tolerant to deltamethrin, fenvalerate and cypermethrin than in the population less tolerant Treated carboxylestemse of masson pine carterpillar with five synergists, SV, and TPP showed strongly inhibition, and as the amount of SV1 or TPP increased, the activity of carboxylesterase decreased correspondingly.
