[Studies on seed quality evaluation technique and grading rules of Cistanche deserticola].
OBJECTIVE
To establish a seed quality evaluation technique system and quality grading rules for Cistanche deserticola.


METHODS
We used stereomicroscope, microphotography and image analysis system, tetrazolium method to measure, analyze and evaluate the size, thousand kernel weight, plumpness, embryo rate and viability of Cistanche deserticola seed. Then we used SPSS 11.0 statistical analysis software to analyze the seed viability and related indexes of another 55 batches.


RESULTS
Seed size was significantly correlated with thousand kernel weight, but wasn't correlated with seed viability. However, grain plumpness was negatively correlated with seed viability. Seed quality was not determined by seed size but by seed viability and grain plumpness.


CONCLUSIONS
Seed viability, thousand kernel weight and grain plumpness are significant indicators of seed quality and they can be took in the granding rules of Cistanche deserticola seed.
Xu
Rong
R
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences/Peking Union Medical College, Beijing 100193, China.
Zhou
Feng
F
Chen
Jun
J
Yu
Jing
J
Chen
Shi-Lin
SL
Liu
Tong-Ning
TN
D031671:Cistanche / Q000737:chemistry* / Q000145:classification* / Q000502:physiology; D018525:Germination; D010946:Plants, Medicinal / Q000737:chemistry* / Q000502:physiology; D011786:Quality Control; D012621:Seasons; D012639:Seeds / Q000033:anatomy & histology / Q000737:chemistry* / Q000145:classification* / Q000502:physiology