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净叶黄是从长脖黄的原始群体中途育出来的高抗赤星病种质，为进一步提高该种质的利用率，设置了正、反交，回交及自交试验。通过对其后代大量表现型的分析，摸清了净叶黄抗赤星病的遗传规律。初步结论：净叶黄抗赤星病受显性基因控制，抗病性已稳定，遗传力强，杂交成功率高，易于利用。与净叶黄杂交育成的品种，对赤星病均有一定的抗性。
Net leaf yellow is from the original population of long yellow neck out of the high resistance to brown spot disease germplasm, in order to further improve the germplasm utilization, set up, cross, backcross and self-test. Through the analysis of a large number of phenotypes of its offspring, we found out the genetic rule of net leaf yellow against brown spot disease. Preliminary conclusions: net leaf yellow against brown spot disease by the dominant gene control, disease resistance has been stable, strong heritability, high success rate of hybridization, easy to use. Breeding with net leaf yellow breed, have some resistance to brown spot disease.