甘肃农业大学学报
甘肅農業大學學報
감숙농업대학학보
JOURNAL OF GANSU AGRICULTURAL UNIVERSITY
2009年
6期
48-51,78
,共5页
白青华%郭晓冬%王萍%孙利鹏
白青華%郭曉鼕%王萍%孫利鵬
백청화%곽효동%왕평%손리붕
辣椒%低温%氮素%叶绿素
辣椒%低溫%氮素%葉綠素
랄초%저온%담소%협록소
pepper%low temperature%nitrogen%chlorophyll
在模拟日光温室的条件下,研究了低温对辣椒幼苗叶片内氮和叶绿素含量的影响,结果表明:低温可引起幼苗叶片氮素含量的下降,15 ℃/9 ℃低温处理的叶片氮素含量大幅下降,处理15 d后较处理前叶绿素下降了6.63 %,15 ℃/9 ℃和10 ℃/5 ℃低温处理15 d后叶绿素a、叶绿素b及叶绿素(a+b)均下降,其中10 ℃/5 ℃处理较28 ℃/18 ℃处理,叶绿素a下降了45.6 %、叶绿素b下降了42.5 %,叶绿素(a+b)下降了4.48 %;结果还显示,辣椒幼苗叶片氮含量与叶绿素含量间呈正相关,叶片叶绿素含量随氮含量的增加而增加.
在模擬日光溫室的條件下,研究瞭低溫對辣椒幼苗葉片內氮和葉綠素含量的影響,結果錶明:低溫可引起幼苗葉片氮素含量的下降,15 ℃/9 ℃低溫處理的葉片氮素含量大幅下降,處理15 d後較處理前葉綠素下降瞭6.63 %,15 ℃/9 ℃和10 ℃/5 ℃低溫處理15 d後葉綠素a、葉綠素b及葉綠素(a+b)均下降,其中10 ℃/5 ℃處理較28 ℃/18 ℃處理,葉綠素a下降瞭45.6 %、葉綠素b下降瞭42.5 %,葉綠素(a+b)下降瞭4.48 %;結果還顯示,辣椒幼苗葉片氮含量與葉綠素含量間呈正相關,葉片葉綠素含量隨氮含量的增加而增加.
재모의일광온실적조건하,연구료저온대랄초유묘협편내담화협록소함량적영향,결과표명:저온가인기유묘협편담소함량적하강,15 ℃/9 ℃저온처리적협편담소함량대폭하강,처리15 d후교처리전협록소하강료6.63 %,15 ℃/9 ℃화10 ℃/5 ℃저온처리15 d후협록소a、협록소b급협록소(a+b)균하강,기중10 ℃/5 ℃처리교28 ℃/18 ℃처리,협록소a하강료45.6 %、협록소b하강료42.5 %,협록소(a+b)하강료4.48 %;결과환현시,랄초유묘협편담함량여협록소함량간정정상관,협편협록소함량수담함량적증가이증가.
The effects of low temperature were investigated on the content of N and chlorophyll in pepper leaves under controlled conditions of sunshine used greenhouse in this paper. The results showed low temperature decreased the content of N. The treatment of 15 ℃/9 ℃ reduced significantly the content of N, which decreased of 6.63 % after 15 d compared with 0 d. Both 15 ℃/9 ℃ and 10 ℃/5 ℃ treatments for 15 d reduced the content of Chl a, Chl b and Chl (a+b). The treatment of 10 ℃/5 ℃ decreased 45.6 % of Chl a, 42.5 % of Chl b and 4.48 % of Chl (a+b) compared with the treatment of 28 ℃/18 ℃. There was a positive relationship between the nitrogen content and chlorophyll content.