The relationship between chlorophyll a fluorescence parameters and yield components in sunflower hybrids

IF 0.9 4区 生物学 Q4 PLANT SCIENCES
Antonela Markulj-Kulundzic, D. Iljkić, M. Antunović, A. Sudarić, I. Varga
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引用次数: 0

Abstract

The sunflower is considered one of the four most important oilseeds globally. The study was conducted on 16 sunflower hybrids in field conditions to link photosynthesis parameters with yield components using chlorophyll a fluorescence parameters (ChlF), chlorophyll content, leaf temperature and agronomic traits. By analysing the ChlF parameters in the flowering stage of sunflower hybrids, a statistically significant difference was found between the studied hybrids for all the ChlF parameters except for the photosynthetic efficiency index of energy required from exciton to the reduction of ultimate electron acceptors on photosystem I (PItotal). At the same time, the results confirmed the significance of the chlorophyll content, leaf temperature, and agronomic traits for the studied hybrids. The indicators of photosynthetic efficiency showed a significant correlation between the efficiency with which the electron can reduce the final electron acceptors to photosystem I (RE0/ET0), PItotal and plant height. Also, the number of seeds per head showed a positive and very significant correlation with variable fluorescence in step I (VI) and a very highly significant negative correlation with the energy flow which reduces electron end acceptors on the acceptor side of photosystem I (RE0/RC). Using these analyses in sunflower breeding programmes could improve productivity and performance optimisation under changeable growing conditions.
向日葵杂交种叶绿素a荧光参数与产量成分的关系
向日葵被认为是全球最重要的四种油籽之一。以16个向日葵杂交种为材料,利用叶绿素a荧光参数(ChlF)、叶绿素含量、叶温和农艺性状等指标,在田间条件下进行光合参数与产量的联系研究。通过对向日葵杂交种开花期ChlF参数的分析,发现除了从激子到光系统I上最终电子受体还原所需能量的光合效率指数(PItotal)外,所有ChlF参数在不同杂交种间的差异均有统计学意义。同时,研究结果也证实了杂交品种叶绿素含量、叶温和农艺性状的显著性。光合效率指标显示,电子对光系统I最终电子受体的还原效率(RE0/ET0)、PItotal与株高呈极显著相关。此外,每穗种子数与步骤I (VI)的可变荧光呈极显著正相关,与光系统I (RE0/RC)受体侧电子端受体减少的能量流呈极显著负相关。在向日葵育种项目中使用这些分析可以在多变的生长条件下提高生产力和性能优化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Botanica Serbica
Botanica Serbica Agricultural and Biological Sciences-Plant Science
CiteScore
1.40
自引率
12.50%
发文量
17
审稿时长
34 weeks
期刊介绍: Botanica Serbica publishes original research papers on all aspects of plant, fungal and microbial biology research including the disciplines of microbiology, mycology, lichenology, bryology, flora, vegetation, biogeography, systematics, taxonomy, plant biotechnology, plant cell biology, plant ecology, environmental plant biology, forestry, genomics, horticulture, limnology, metabolomics, molecular biology, proteomics, virology, plant conservation and protection, and wildlife and ecosystem management.
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