| The article studied the germination rate, germination energy, seed vigor index, relative radicle length and
budding days of 2-7-6 litchi under the condition of 40益to germinate 1~8 d and stored at room temperature for 40 days,
while CK was under the room temperature with storage. The results showed that litchi seed germination percentage was not
affected by 40益germination for 4 d, germination rate would reduce in 40益germination for more than 4 d, germination
energy of litchi decreased with germination time going on. The critical time of litchi seeds resistant to temperature of 40益
was 2 d, after 2 d, the activity index and relative radicle length of seeds decreased rapidly. High temperature germination
for 1~2 d had smaller inhibition effect on the growth of radicle, radicle almost stopped growing when germination time was
more than 4 d in high temperature. The high temperature of 40益germination for 1~2 d would delay the germ emergence,
but it could improve the germ uniformity. Germ uniformity decreased with the germination time for more than 1~2 d in high
temperature of 40益. The litchi germ emergence delayed and uniformity declined with the increase of germination time. |
