環境因子影響萵苣種子發芽之檢討
Other Title
A Review on the Influence of Environmental Factors on Lettuce Seed Germination
Journal
中國園藝
Journal Volume
17
Journal Issue
6
Pages
289-294
Date Issued
1971-11
Date
1971
Author(s)
邱阿昌
A-Chang Chiou
Abstract
水分能影響高宜種子的發芽率及發芽勢， 也影響種子對光線之敏感性。氧氣為自直種子發芽昕必需，無空氣時會引起種子休眠。高宜種子在溫度G O C至2 5 ° C均可發芽，唯溫度愈{旦發芽愈懂，但低溫能打破種子休眠，並能代替光線促進種子發芽;高溫時引起種子休眠或促進種子對光線發生敏感，對光線之敏感性依品種而異;係由P h ytochrome色素所控制; 溫度、水分， 氣體、及化學物質均能影響或代替光線對種子發芽所產生之作用。抑制物質或促進物質均能影響高宜種子之發芽。
1. The moisture supplied to lettuce seed may affect both the germination percentage and germination rate. Imbibition of water is also an improtant factor influencing germination of light-sensitive seeds. 2. Oxygen is necessary for lettuce seed germination. Anaerobic condition will induce dormancy. 3. Lettuce seeds will germinate at a temperature range of oGe to 25°e. The lower the temperature, the slower germination rate. Low temperature can break lettuce seed dormancy or replace the light requirement for germination. High temperature, on the other hand, can induce dormancy or light requirement for germination. 4. Some varieties of lettuce seeds require light to promote germination, but some do not. Temperature, far-red, moisture, gas, and chemicals can affect or replace the light requirement for germination in spite of whether it is related to phytochrome or not. 5. There are some inhibitors and promoters which have been tested for lettuce seed germination.
Subjects
萵苣
發芽
水分
光線
溫度
Lettuce
Germination
Water
Light
Temperature
Publisher
臺灣園藝學會
Type
journal article