Effect of diurnal irradiance on night-chilling tolerance of six rubber cultivars
文献类型：期刊论文
| 作者 | Zheng, Y. -L.
|
| 刊名 | PHOTOSYNTHETICA
 |
| 出版日期 | 2016 |
| 卷号 | 54期号:3页码:374-380 |
| 关键词 | chlorophyll fluorescence gas exchange reactive oxygen species soluble sugar content stomatal conductance |
| 中文摘要 | The rubber tree (Hevea brasiliensis) is an important tropical crop with a high economic value that has been successfully cultivated in Xishuangbanna, China. Xishuangbanna has a long dry season (November-February) with cold nights and frequent fog events. Thus, it is important to select chilling-tolerant cultivars in order to understand better the role of fog in protecting rubber tree from chilling-induced photodamage. In this study, we examined the photosynthetic responses of six rubber tree cultivars (Lan 873, Yunyan 77-2, Yunyan 77-4, GT1, Reken 523, and Reyan 733-97) to night-chilling stress (0, 5, and 10A degrees C) and two different irradiances (100 and 50% of full sunlight). Our results showed that all six cultivars could withstand nights at 10A degrees C for three days, while night chilling at 0 and 5A degrees C impaired photosynthesis, which was indicated by photoinhibition, decrease of soluble protein content, and accumulation of malondialdehyde. Reken 523 and Reyan 733-97 were more sensitive to night chilling than other cultivars. Low irradiance (50% of full sunlight) after the chilling treatment apparently mitigated the effect of night-chilling stress. It indicates that frequent fog events after cold nights might greatly contribute to the success of rubber tree cultivation in Xishuangbanna. |
| 公开日期 | 2016-09-23 |
| 源URL | [http://ir.xtbg.org.cn/handle/353005/10018]  |
| 专题 | 西双版纳热带植物园_植物生理生态研究组 生物入侵生态学组 |
| 推荐引用方式 GB/T 7714 | Zheng, Y. -L.. Effect of diurnal irradiance on night-chilling tolerance of six rubber cultivars[J]. PHOTOSYNTHETICA,2016,54(3):374-380. |
| APA | Zheng, Y. -L..(2016).Effect of diurnal irradiance on night-chilling tolerance of six rubber cultivars.PHOTOSYNTHETICA,54(3),374-380. |
| MLA | Zheng, Y. -L.."Effect of diurnal irradiance on night-chilling tolerance of six rubber cultivars".PHOTOSYNTHETICA 54.3(2016):374-380. |
入库方式： OAI收割
来源：西双版纳热带植物园
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