植物的生理过程受植物激素控制,所以用浸种处理种子,对发芽和生长有调节作用。近年来用赤霉酸处理种子提高了发芽率,打破了种子休眠期,从而引起了广泛的重视。印度近年来在热带和亚热带地区引进生长快的外国松,如加勒比松(Pinus cariba—ea),它是很适宜的栽植树种,生长快,木材 The physiological processes of plants are controlled by plant hormones, so seeds are treated with seed soaking that they regulate germination and growth. In recent years, the treatment of gibberellic acid seeds increased germination rate, breaking the seed dormancy period, which has attracted widespread attention. In recent years, India has introduced fast-growing foreign pine, such as Pinus cariba-ea, in the tropical and sub-tropical regions. It is a very suitable tree for planting, fast growing,