低温胁迫对不同辣椒品种生长及生理指标的影响  

Influences of Low Temperature Stress on Pepper's Growth Index and Physiological Index

作　　者：柴文臣[1] 马蓉丽[2] 焦彦生[2] 邢国明[1] 

机构地区：[1]山西农业大学研究生学院,山西太谷030801 [2]山西省农业科学院蔬菜研究所,山西太原030031

出　　处：《华北农学报》2010年第2期168-171,共4页Acta Agriculturae Boreali-Sinica

基　　金：国家星火项目(2008GA630001)

摘　　要：我国的设施辣椒栽培面积不断增加,以现有的品种为试材,研究其耐寒性情况,为设施辣椒的栽培生产提供参考。以晋尖椒1号、保椒F1、良椒2313、中椒22号4个辣椒品种为试材,研究了各辣椒品种分别在15℃/5℃(昼/夜),20℃/10℃(昼/夜),25℃/15℃(昼/夜)3个不同的温度处理下,其生长指标和生理指标(可溶性糖含量、脯氨酸含量、POD活性、SOD活性、根系活力、叶绿素含量、丙二醛含量)的变化。结果表明,随着温度的降低,各辣椒品种的各项生长指标及干物质、根系活力、叶绿素含量、SOD活性都逐渐减小,而可溶性糖含量、脯氨酸含量、POD活性、丙二醛含量逐渐增大。在低温处理前后,所研究生理指标的变化有明显的差异,说明其变化与辣椒的抗寒性密切相关。根据测定的各项指标对4个辣椒品种进行筛选,其抗寒性大小顺序为:良椒2313、中椒22号、晋尖椒1号、保椒F1。Our facility pepper cultivation area increased, so our current varieties were used to study their resist- ance to cold conditions to provide reference for the facilities pepper cultivation. In this experiment ,we use the variety of Jin pepper No. 1, Baojiao F~ generation, Liangjiao 2313, Zhongjiao 22 to determine their growth index and physiolog- ical index（ Soluble sugar content, proline content, POD activity, SOD activity, root activity, chlorophyll content, malon- dialdehyde content） under the temperature of 15℃/5℃ （day/night） ; 20℃/10℃ （day/night） ; 25℃/15℃ （ day/ night）. The results showed that the growth index,the dry matter content, root activity, chlorophyll content, SOD activity had decreased,when the temperature increased,the Soluble sugar content,proline content, POD activity, malondialde- hyde content gradually increased. The changes of physiological index before and after the treatments show that the in- dex are closely related to pepper＇s cold-resistance ability. The four pepper cultivars,according to various indicators of cold resistance were listed in an order. Liangjiao 2313 ,Zhongjiao 22 ,Jin pepper No. 1 ,Baojiao F1 generation.

关 键 词：辣椒 低温胁迫 生长指标 生理指标 抗寒性 

分 类 号：S641.01[农业科学—蔬菜学]