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IF 3.9 2区农林科学 Q1 HORTICULTURE

Scientia Horticulturae Pub Date : 2024-09-17 DOI:10.1016/j.scienta.2024.113636

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引用次数: 0

摘要

地中海盆地地区的光合光通量密度通常远高于叶片的饱和点。全球变暖加剧了这一现象，在叶绿体中产生了活性氧，会破坏组织（光损伤）并降低光合作用潜力。Citrus bergamia Risso et Poiteau（佛手柑）在意大利南部栽培成功，从其黄皮果实中提炼出优质精油，新鲜食用具有多种保健功效。实验在意大利南部进行，为期两年。研究采用了随机区组设计。结果表明，与对照植株相比，使用反光材料处理的佛手柑树明显提高了平均单株产量，但使用 caolin 和碳酸钙的效果更明显。处理树和对照树收获时的果实数量相似；因此，两种反光材料对收获前果实的减少没有影响，但产量的变化归因于果实大小的增加。这可能是由于反光材料覆盖的叶片性能更高。在果实成熟方面，处理对各项指标没有影响，但处理过的果树果实抗坏血酸含量更高。这种处理方法提高了精油产量。这既提高了精油产量（可用作全球香水工业的基料），也提高了新鲜食用的营养保健参数，从而证明了在树上使用反光材料所增加的成本是合理的。

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Effect of two reflective materials on the physiological and production behaviour of bergamot (Citrus bergamia Risso et Poiteau) plants

The Mediterranean basin area is characterised by photosynthetic photon flux density, which is often well above the saturation level point of the leaf. This phenomenon has been exacerbated by global warming, giving rise to reactive oxygen species in chloroplasts, which can damage tissues (photodamage) and reduce photosynthetic potential.

Citrus bergamia Risso et Poiteau (bergamot) was successfully cultivated in Southern Italy for the high-quality essential oil extracted from the flavedo fruit and freshly consumed for its numerous health properties.

This study aimed to use two reflective materials, caolin and calcium carbonate, to improve tree productivity. The experiment was conducted over two years in southern Italy. A randomised block design was used in this study. At harvest, fruit samples were randomly detached.

The results showed that bergamot trees treated with reflective materials significantly increased the average yield per plant compared to that of the control plants, but the effect was stronger with caolin and calcium carbonate. The number of fruits at harvest was similar between the treatment and control trees; therefore, there was no effect of the two reflective materials on decreased fruit pre-harvest, but the change in yield was attributable to an increase in fruit size. This can be attributed to the higher performance of the leaves covered by reflective materials. Regarding maturation, the indices were not influenced by the treatment, whereas ascorbic acid was higher in the fruit of the treated trees. Essential oil production was improved by this treatment. This improves both the essential oil yield, used as a base for the worldwide perfume industry, and the nutraceutical parameters for fresh consumption, justifying the increased costs of applying reflective material on the tree.

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来源期刊

Scientia Horticulturae 农林科学-园艺

CiteScore

8.60

自引率

4.70%

发文量

796

审稿时长

47 days

期刊介绍： Scientia Horticulturae is an international journal publishing research related to horticultural crops. Articles in the journal deal with open or protected production of vegetables, fruits, edible fungi and ornamentals under temperate, subtropical and tropical conditions. Papers in related areas (biochemistry, micropropagation, soil science, plant breeding, plant physiology, phytopathology, etc.) are considered, if they contain information of direct significance to horticulture. Papers on the technical aspects of horticulture (engineering, crop processing, storage, transport etc.) are accepted for publication only if they relate directly to the living product. In the case of plantation crops, those yielding a product that may be used fresh (e.g. tropical vegetables, citrus, bananas, and other fruits) will be considered, while those papers describing the processing of the product (e.g. rubber, tobacco, and quinine) will not. The scope of the journal includes all horticultural crops but does not include speciality crops such as, medicinal crops or forestry crops, such as bamboo. Basic molecular studies without any direct application in horticulture will not be considered for this journal.