- Gibberellic acid promotes seed germination
Gibberellic acid treatment of cucumber seeds can germinate 2~3 days earlier, and the germination rate and vitality index are improved, and the fresh weight of seedling roots and cotyledons is increased.
(1) Use period: before sowing.
(2) Usage method: Soak cucumber seeds in 100~200mg/L GA3 solution for 3h, drain the water, wrap with gauze to keep moist, and place at a suitable temperature. Sow seeds after the seeds turn white. It should be noted that high concentrations of gibberellins have an inhibitory effect on germination, so when using, do not increase the concentration at will.
- Indoleacetic acid and acetic acid improve seed germination rate
(1) Use period: before sowing.
(2) Usage method: Soak seeds in 5mg/1 indoleacetic acid (IAA) and 0.5mg/L naphthaleneacetic acid (NAA) for 3h.
(3) Usage effect: Germination at suitable temperature and humidity can shorten the germination time, significantly increase the germination potential, germination index, vitality index, and improve the germination rate.
- Sodium nitrophenolate promotes seed germination
(1) Use period: before sowing.
(2) Usage method: Soak seeds in 4mg/L sodium nitrophenolate solution for 12h, then germinate and sow
(3) Effect: Sodium nitrophenolate is a broad-spectrum compound plant growth regulator that can improve cell vitality, promote seed germination, develop the root system, and improve the resistance of young sprouts and seedlings.