artificial germination
1.The effect of La(NO 3) 3 on natural aged or artificial aged seed vigor of rice was studied. The results show that the germination rate, germination index and vigor index of aged seed of rice increase with La(NO 3) 3 treatments.
2.The sowing and seedling raising experiments of Castanopsis hystrix seed with different artificial treatments showed 1-year-old C. hystrix seedling average height and average dbh with the treatments of hastening germination and cutting root were 22.0% and 117.0% higher than those without the root cutting treatment, respectively, the individual-tree lateral root number increased by 127.71%, the afforested survival rate increased by 23.0%.
3.Incomplete diallel cross was made by CMS Shaan2A,PolimaA,1763A with four restoring lines 92 P 187 、Ken C 1、Ken C 8 and L 45 .Their F 1 generations as trial materials,under sclerotinose natural germination in field and artificial inoculation,survey identification disease index and disease incidence of combinations,the combining ability of parents and the combinations to disease resistance was evaluated.
