[The genetic analysis of Al-tolerance in maize].
The heredity of Al-tolerance was studied in different Al-tolerance of two inbred lines of maize and their F1, F2, B1 and B2 generations by the means of nutritional cultivation. The results indicated that the relative biomass (Al/CK) of root had high hereditary variance, the broad-sense heredity reached 78.6 %, but narrow-sense heredity only had 15.4 %. Its hereditary pattern mainly was dominant effects. On contrast, the relative biomass of shoot had high narrow-sense heredity (43.1%), it means that the hereditary pattern of relative biomass of shoot mainly was additive effects. On the hereditary ground of 0.1 mmol/L Al(3+), the broad-sense heredity of total absorbing surface to volume ratio and active absorbing surface to volume ratio were 17.9 % and 36.4 %, and narrow-sense heredity of them were 10.0 % and 18.4 %. It means that the characters of root activity were obviously affected by environment.
Li
De-Hua
DH
Department of Biology of Xiaogan University, Xiaogan 432 100, China. litokuka@sohu.com
He
Li-Yuan
LY
Liu
Wu-Ding
WD
D000535:Aluminum / Q000494:pharmacology*; D018533:Biomass; D003433:Crosses, Genetic; D004351:Drug Resistance / Q000235:genetics; D005799:Genes, Dominant; D017343:Genes, Plant; D014644:Genetic Variation; D018517:Plant Roots / Q000235:genetics / Q000254:growth & development / Q000502:physiology; D036226:Seedlings / Q000235:genetics / Q000254:growth & development / Q000502:physiology; D003313:Zea mays / Q000235:genetics* / Q000254:growth & development / Q000502:physiology
D000535:Aluminum