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杧果栽培已有4000多年的历史。原产于东南亚和印度,后来传播到其他热带和亚热带地区。杧果几乎能在各种类型的土壤上栽培和结果,但在壤土和排水良好的土壤上生长结果最好。在泰国,杧果可以分成三类:1.成熟后果皮是绿色的;2.可作为餐后水果;3.加工用果。近来,杧果生产上采用了新技术,其生长、开花和结果过程可用某些化学物质来控制,使之改变原来的季节。许多研究者是用2.5%的硝酸钾(N、P、K比例为13—0—46)溶液作为诱导剂。把这种溶液唢到老熟的叶片上以诱导反季节开花。杧果的某些品种例如“Nam-dok-mai”、“Rad”、“Sai-fon”、“Chao-knun-thip”、“Nang-Sang”和“Khew-sa-woei”对硝酸钾溶液敏感,但是杧果
Mango cultivation has more than 4,000 years of history. Originated in Southeast Asia and India, and later spread to other tropical and subtropical regions. Mangosteen can grow and produce on almost any type of soil, but grow best on loam and well-drained soils. Mangosteen can be divided into three categories in Thailand: 1. The peel is green after ripening; 2. It can be used as a post-meal fruit; 3. The processing fruit. Recently, new technologies have been introduced into the production of mango fruits. The growth, flowering and fruiting processes can be controlled by certain chemicals to change the original seasons. Many researchers use 2.5% potassium nitrate (N, P, K ratio 13-0-46) solution as an inducer. This solution is sprinkled onto the ripe leaves to induce ant season flowering. Some varieties of mango such as “Nam-dok-mai”, “Rad”, “Sai-fon”, “Chao-knun-thip”, “Nang-Sang” “Khew-sa-woei” is sensitive to potassium nitrate solution, but mango