TY  - JOUR
T1  - Study on Characteristics of <I>in situ</I> Pollen Germination and Pollen Tube Growth of Loquat
AU - , Yang Qin AU - , Deng Qun-Xian AU - , Wang Yong-Qing AU - , Liu Lu AU - , Fu Yan AU - , Li Ying-Hong AU - , Tao Lian AU - , Luo Shi-Feng 
JO  - Plant Sciences Research
VL  - 1
IS  - 3
SP  - 50
EP  - 55
PY  - 2008
DA  - 2001/08/19
SN  - 1995-476x
DO  - psres.2008.50.55
UR  - https://makhillpublications.co/view-article.php?doi=psres.2008.50.55
KW  - Loquat
KW  -pollen germination
KW  -pollen tube growth
AB  - The characteristics of pollen germination and pollen tube growth were studied by using ‘Dawuxing’ as test material. The results showed that the stigma receptivity lasted about 7 days and the pollen germination time was various among stigmas and there were long intervals among different stigmas (3-4 days). The rate of pollens whose tubes reached upper styles to germinated pollens was significantly higher than those reaching in open pollination and self-pollination. But there was no obvious difference in cross-pollination. The percentage of ovules in which pollen tube growth was normal in cross-pollination was obviously higher than that in self-pollination. The differences of pollen tube growth were remarkable in normally growing ovules, lightly degenerated ovules and completely degenerated ovules and also between the ovules of fallen flowers and normal sear flowers. Therefore, it could be concluded that ‘Dawuxing’ was self-incompatibility to some extent and pre-fertilization barrier was the basic reason for serious embryo abortion and the abundant genetic diversity of plants from degenerate seeds.
ER  -