Biological Effect Of Pisum Sativum L. CV MZ-1 Seed Induced By Fast Neutron

The dose and biological effects were studied in Needle Leaf Pea MZ-1 seeds irradiated by the Cf-252 fission neutron source. Moreover, the induction rules of Cf-252 fission neutron source were discussed, and a few mutants were screened out. The main findings are as follows:1. Neutron and y-ray transport was simulated using MCNP code. According to the simulation results, the neutron absorbed dose and y-rays (photons) absorbed dose of each samples were calculated.2.Germination rate and growth of seeding were measured on the seed of Pisum sativum L. by Fast neutron radiation. Fast neutron radiation can improve germination rate. Fast neutron can promote the occurrence of branching and the raise of branching on seeding. Higher dose radiation can inhibit germination of seed. Lower dose radiation can promote germination of Pisum sativum L. seed and seedling growth. Appropriate low doses radiation can promote significantly seedling growth.3. Botanical characteristics parameter were measured on Pisum sativum L. after seeding period. Higher dose radiation can inhibit height of pea. Lower doses radiation can promote height of pea. Fast neutron radiation can increase harvest of pea. Appropriate doses radiation can increase harvest significantly.4.Through field observation and photographs, to find 18 significant morphological variants. M1 generation plants have higher mutation rate when Pisum sativum L. seeds were irradiated by the higher absorbed dose. The study found that the parts and cell types of pea seed which lead to mutations Easily.The study found that special dose of fast neutron radiation can impact pea significant. With M1 generation peas were into the growth stage, many properties have been given repaired.