Impacts of reduced water availability on vegetative and reproductive traits of a Solanum species

IF 1.1 4区 生物学 Q4 ECOLOGY Plant Species Biology Pub Date : 2024-03-07 DOI:10.1111/1442-1984.12452
Diana Michael, Besufekad Wolde, Shivani Krishna
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Abstract

While drought is known to affect crop yields negatively, there is limited knowledge of the strategies used by animal‐pollinated plants to cope with such conditions. In this study, we simulated low and moderate drought conditions in a greenhouse experiment and examined the vegetative and reproductive traits of a buzz‐pollinated species (Solanum lycopersicum). Our findings indicate that individuals exposed to both drought conditions decreased in height and bore fewer leaves but increased in the ratio of root length to dry mass. The number of flowers produced per day and the overall flower production were higher in plants under control conditions. We found no differences in the onset of flowering between the treatments, but the plants exposed to low drought showed peak flowering earlier. Among the morphometric traits, flower height, floral diameter, petal length, and petal width were significantly lower in both drought conditions. Individuals in the moderate‐drought treatment displayed greater variation in reproductive traits than those in the low‐drought treatment. Overall, drought stress negatively impacted the aboveground vegetative growth and the reproductive efforts of plants.

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水分供应减少对茄科植物植株和生殖特性的影响
众所周知,干旱会对作物产量产生负面影响,但人们对动物授粉植物应对干旱的策略了解有限。在本研究中,我们在温室实验中模拟了低度和中度干旱条件,并考察了嗡嗡授粉物种(番茄茄属植物)的植株和生殖性状。我们的研究结果表明,暴露在这两种干旱条件下的个体高度降低,叶片减少,但根长与干重的比率增加。对照条件下的植株每天生产的花朵数量和总体花朵产量更高。我们发现,不同处理之间的始花期没有差异,但受低度干旱影响的植株开花高峰期较早。在形态特征中,花高、花朵直径、花瓣长度和花瓣宽度在两种干旱条件下都明显较低。中度干旱处理中的个体比低度干旱处理中的个体在生殖性状上表现出更大的差异。总体而言,干旱胁迫对植物的地上部植株生长和生殖能力产生了负面影响。
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来源期刊
Plant Species Biology
Plant Species Biology 生物-生态学
CiteScore
2.70
自引率
14.30%
发文量
36
审稿时长
>12 weeks
期刊介绍: Plant Species Biology is published four times a year by The Society for the Study of Species Biology. Plant Species Biology publishes research manuscripts in the fields of population biology, pollination biology, evolutionary ecology, biosystematics, co-evolution, and any other related fields in biology. In addition to full length papers, the journal also includes short research papers as notes and comments. Invited articles may be accepted or occasion at the request of the Editorial Board. Manuscripts should contain new results of empirical and/or theoretical investigations concerning facts, processes, mechanisms or concepts of evolutionary as well as biological phenomena. Papers that are purely descriptive are not suitable for this journal. Notes & comments of the following contents will not be accepted for publication: Development of DNA markers. The journal is introducing ''Life history monographs of Japanese plant species''. The journal is dedicated to minimizing the time between submission, review and publication and to providing a high quality forum for original research in Plant Species Biology.
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