[Study on pollen viability and stigma receptivity of 5 Iris plants].
OBJECTIVE
To increase the reproduction efficiency of Iris plants.


METHODS
Pollen viability, stigmatic receptivity, the color of anther and stigma of 5 Iris plants were observed during blooming.


RESULTS
1. The highest pollen viability was in 4 hours after blooming; 2. The stigmatic receptivities of I. sichuanensis, I. leptophylla, I. lactea and I. goniocarpa were strong in 4 hours after blooming, while that of I. lactea var. chinensis was strong in 2 hours after blooming; 3. The color of anther could reflect the pollen viability, but could not indicate the viability level; 4. The stigma color could not reflect the receptivity of stigma.


CONCLUSIONS
The optimum artificial pollination time of these five species were 12:00 -14:00.
Yu
Xiaofang
X
Triticeae Research Institute, Sichuan Agricultural University, Dujiangyan 611830, China.
Zhang
Haiqin
H
Jiang
Tianyi
T
Zhou
Yonghong
Y
D005075:Biological Evolution; D003116:Color; D035264:Flowers / Q000502:physiology; D031323:Iris Plant / Q000502:physiology*; D009812:Odorants; D051479:Plant Infertility; D011058:Pollen / Q000254:growth & development*; D054817:Pollination / Q000502:physiology*; D012098:Reproduction / Q000502:physiology; D013045:Species Specificity