Davies WJ et al. Plant growth substances and the regulation of grow thunder drought. Aust J Plant physiol,1986,13:105 _125.
[5]
Davies WJ et al. Horm ones as chemical signals involvedin root to shoot communication of effects of chang es in the so il env iro nm ent.In:Hoad GV ed. Horm one Action in Plant Devel opment. A C ritical Appraisa l. London:Butter worths,1987,201~216.
[6]
JacksonM B,HallKC. Early stomatal closure in logged peaplants is media ted by ABA in the absence of foliar water deficits. Plant Cell Envoronment,1987,10:121~130.
[7]
JacksonM Betal. Are roots asource of abscisic acid for the shoots of flooded pea plant? J ExpBot,1988,39:1631 _1637.
[8]
Rivier Letal. Rapid effect of osmotic stress on the content and exo diffusion of abscisic acidin Zeamays.Plant Sci Lett,1983,31:133_137.
[9]
Robe rtson JM et al. D roughtindu ced increases in abscisic acidlevels in the root apex of sunflower.Plant Physiol,1985,79:1086~1089.
[10]
Wright ST C. An increase in the inh ibito r β content of detached wheat leaves follow ing a period of wilting. Planta,1969,86:10~20.
[11]
Zeevaart JAD,C reelman RA. Metabolism and physiology of abscisic acid. Ann Rev Plant Physiol Plant MolBiol,1988,39:439~473.
[12]
Zhang J,Dav iesW J. ABA i n roo ts and leavesf flooded pea pl an ts. J Ex p Bo t 1987,38:649~659.
[13]
Zhang J,Dav iesW J.Increased synthesis of ABA in partically dehyd rated root tips and ABA transport from roots to leaves. J Exp Bo t,1987,38:2015~2023.
[14]
Zhang J et al. Control of stroma talbeh aviour by abscisic acid which apparently originates in theroot. JExpBot,1987,38:1174~1181.
[15]
Zhang J,Davies WJ. A bscisic acid produced in dehy drating roots may enab le the plant to measure the water status of the soil. Plant Cell Envi ronment,1989,12:73~81.