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中国农学通报 ›› 2025, Vol. 41 ›› Issue (16): 35-39.doi: 10.11924/j.issn.1000-6850.casb2024-0630

• 林学·园艺·园林 • 上一篇    下一篇

朝天椒苗期光合指标杂种优势分析

王虹(), 贾毛毛, 李金玲, 源朝政, 高小峰, 周晓静, 杨玉华, 郑明燕()   

  1. 南阳市科学院,河南南阳 473000
  • 收稿日期:2024-10-14 修回日期:2025-03-19 出版日期:2025-06-05 发布日期:2025-06-05
  • 通讯作者:
    郑明燕,女,1978年出生,河南南阳人,副研究员,硕士,主要从事蔬菜栽培及遗传育种方面的研究。通信地址:473000 河南省南阳市人民北路350号 南阳市科学院,Tel:0377-63313517,E-mail:
  • 作者简介:

    王虹,女,1980年出生,吉林长春人,助理研究员,硕士,主要从事蔬菜栽培研究,通信地址:473000 河南省南阳市人民北路350号 南阳市科学院,Tel:0377-63313517,E-mail:

  • 基金资助:
    河南省大宗蔬菜产业技术体系项目“南阳综合试验站”(HARS-22-07-Z4)

Heterosis Analysis of Photosynthetic Index of Capsicum annuum var. conoides in Seedling Stage

WANG Hong(), JIA Maomao, LI Jinling, YUAN Chaozheng, GAO Xiaofeng, ZHOU Xiaojing, YANG Yuhua, ZHENG Mingyan()   

  1. Nanyang Academy of Sciences, Nanyang, Henan 473000
  • Received:2024-10-14 Revised:2025-03-19 Published:2025-06-05 Online:2025-06-05

摘要:

为筛选出高光效组合的朝天椒品种,对不同朝天椒品种及其杂交F1苗期叶片净光合速率(Pn)、胞间CO2浓度(Ci)、气孔导度(Gs)、水分利用效率(WUE)、蒸腾速率(Tr)和叶绿素含量进行比较,并分析杂种优势及光合指标之间的相关性。结果表明,4个朝天椒杂交F1代在苗期杂种优势显著,净光合速率、气孔导度和蒸腾速率均表现出显著的高亲优势,且净光合速率与蒸腾速率呈极显著正相关。其中‘206’ב天宇’的净光合速率和气孔导度的高亲优势分别是42.99%和63.52%,蒸腾速率的高亲优势为92.16%,光合能力强,是具有潜在开发价值的组合。

关键词: 朝天椒, 光合指标, 杂种优势, 高光效, 簇生, 苗期

Abstract:

In order to select high photosynthetic efficiency combinations of Capsicum annuum var. conoides varieties, the net photosynthetic rate (Pn), intercellular carbon dioxide concentration (Ci), stomatal conductance (Gs), water use efficiency (WUE), transpiration rate (Tr) and chlorophyll content of different C. annuum var. conoides varieties and their hybrid combinations at seedling stage were compared, and the correlation between heterosis and photosynthetic indexes was analyzed. The results showed that the four hybrid C. annuum var. conoides had significant heterosis at seedling stage, and the net photosynthetic rate, stomatal conductance and transpiration rate showed significant high parental heterosis, and the net photosynthetic rate was positively correlated with transpiration rate. Among them, the high parental dominance of net photosynthetic rate and stomatal conductance of ‘206’× ‘Tianyu’ were 42.99% and 63.52%, respectively, while the high parental dominance of transpiration rate was 92.16%, which had strong photosynthetic capacity and was a combination with potential development value.

Key words: Capsicum annuum var. conoides, photosynthetic index, heterosis, high photosynthetic efficiency, cluster, seedling stage