Growth and Yield Responses of Rice to Acid Rain. Ⅰ. Sensitivity to Composition and pH of Simulated Acidic Medium
Other Title
酸雨對水稻生長與產量之影響(一)人工模擬酸雨組成份及酸鹼值之差別效應
Journal
中華農業研究
Journal Volume
46
Journal Issue
3
Pages
216-227
Date Issued
1997-09-02
Date
1997-09-02
Author(s)
Chwen-Ming Yang
楊純明
Abstract
酸雨或稱酸性濕沉降(acid precipitation)，隨著其組成份、濃度、及淋洗期長短，可能對農作物造成不等程度的危害。本研究乃以不同組成份之不等酸鹼值人工模擬酸雨(simulated acid rain)浸潤水稻幼株根部1小時，藉以探討不同酸雨組成對若干生理性狀之差別反應。This study investigated the differences of physiological responses of rice (Qryza sativa L. cv. Tainung No.67) seedling to a variety of compositions and acidities of simulated acid rain (medium). Roots of Two to three weeks old seedings were soaked into simulated acidic media of different ratios (1:1, 5:1, and 1:5) of sulphuric acid (H2SO4) and nitric acid (HNO3) for 1 h. To examine the pH effect, the level of acidic medium was adjusted to 5.0, 4.5, 4.0, 3.5, 3.0, or 2.5 using pure water treatment as control.
Subjects
Rice seedling
Simulated acid rain
pH
Electrical conductivity
Acidic buffering capacity
Homogeneous solution
水稻幼株
人工模擬酸雨
酸鹼值
電導度值
酸緩衝量
均質液
Publisher
農業試驗所
Type
journal article
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