In order to discuss the dormancy characteristics of seeds about Acer miaotaiense Tsoong,an endangered species,the permeability of husk and the effects of inhibitors on seeds germination were tested.The results showed ...In order to discuss the dormancy characteristics of seeds about Acer miaotaiense Tsoong,an endangered species,the permeability of husk and the effects of inhibitors on seeds germination were tested.The results showed that water absorption rate and velocity both increased significantly(P<0.01)when the husk spun off seeds,which meant that seed coat was one of the factors affecting dormancy because the lignification restricted absorption of water from the environment.Some inhibitors existing in the pericarp,seed coat and embryo could inhibit the germination of cabbage seeds.There were obvious differences on the germination rate,radicle length and seedling height(P<0.01),and the inhibition degree was in the order of seed coat>pericarp>embryo.展开更多
文摘In order to discuss the dormancy characteristics of seeds about Acer miaotaiense Tsoong,an endangered species,the permeability of husk and the effects of inhibitors on seeds germination were tested.The results showed that water absorption rate and velocity both increased significantly(P<0.01)when the husk spun off seeds,which meant that seed coat was one of the factors affecting dormancy because the lignification restricted absorption of water from the environment.Some inhibitors existing in the pericarp,seed coat and embryo could inhibit the germination of cabbage seeds.There were obvious differences on the germination rate,radicle length and seedling height(P<0.01),and the inhibition degree was in the order of seed coat>pericarp>embryo.
