Study on the Cell Type and Plug Design for Improving Pan Root and Growth of Cabbage and Chinses Cabbage Seedling

• Main Authors: Liang-Pai Huang, 黃亮白
• Other Authors: Woo Nang Chang
• Format: Others
• Language: zh-TW
• Published: 2000
• Online Access: http://ndltd.ncl.edu.tw/handle/58736758339573835131

碩士 === 國立中興大學 === 園藝學系 === 88 === Summary The seedlings of cabbage and Chinese cabbage grown in 112-cell round plug tray had a good vigor index of seedlings. The stem diameter and leaf area of cabbage seedlings grown in 112-cell round plug were larger than those in other trays. So the fresh and dry weight of these seedling were significantly heavier. The shoot weight of Chinese cabbage seedling in 112-cell round plug was light, due to the short leaf. The anger between two mature leaves of the fifth-week-old Chinese cabbage seedlings in 112-cell round plug was larger than those in other trays. The length of roots of the seedlings in the cross opening and the side-wall opening plug trays were significantly short. So the circling root was improved. After the transplanted seedlings were hold in plug tray for two weeks, the shoot weight and the root weight of the seedlings grown in 112-cell plug tray of the fifth-week-old cabbage and the sixth-week-old Chinese cabbage were heavy. All the characteristics of seedling except the root fresh weight in the cross opening and side-wall opening plug trays were better than those in the de-bottom and control. The cabbage and Chinese cabbage seedling were transplanted into the pots. After two weeks, most of the shoot and root characteristics of seedlings grown in 112-cell plug tray were well under flooding, drought and normal irrigation. The fresh and dry weight of shoot of Chinese cabbage that seedlings grown in 112-cell and 128-cell round plug tray were heavier than those in 128-cell square plug tray under drought condition The root dry weight of Chinese cabbage that seedlings grown in 128-cell square plug tray was heavy under flooding and normal condition. Plants from the plug tray with cross opening and side-wall opening grew better under irrigation treatments than those in the de-bottom and control The weight of bulb and yield of cabbage that seedlings grown in 128-cell square plug tray was the lowest than those in other trays. The fifth-week-old Chinese cabbage seedling grown in cross opening plug tray had the highest yield than those in other trays.