Phosphorus Dynamics in Clementine Mandarin

IF 2.4 3区 农林科学 Q2 HORTICULTURE International Journal of Fruit Science Pub Date : 2022-01-12 DOI:10.1080/15538362.2021.2014017
N. Barlas, D. Kadyampakeni
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Abstract

ABSTRACT The study sought to investigate the internal cycling of phosphorus (P) in Clementine mandarin (Citrus reticulata Blanco “Clementine”). The biomass formation, P concentration, P uptake and accumulation of different organs (bud, flower, fruit, leaf and branches) identified as active organs and found on 1-year-old shoots on fruit trees of bearing age were periodically examined for 2 years. The biomass value was similar between both production seasons. At the beginning of shoot activity, the biomass of annual shoots had a very low rate in the total biomass (0.4%). The biomass increased from 9.7 kg/tree at the beginning of the production season to 62.8 kg/tree at harvest. The P concentrations were in the ranges of 0.11–0.22% in the branches of <1-year-old shoots throughout the 2 years, 0.07–0.15% in the branches of 1-year-old shoots, 0.17–0.31% in the leaves of <1-year-old shoots and 0.13–0.26% in the fruits of <1-year-old and 1-year-old shoots. The total P accumulation at harvest was 82 and 107 g/tree in the first and second years for <1-year-old shoots, respectively, while it was 44 and 48 g/tree for 1-year-old shoots, in the first and second years respectively. The mean daily P uptake amount was determined as 0.4 g/tree for both production years, and the highest daily P accumulation amount was between the fifteenth and twenty-eighth days for both production seasons.
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小柑橘中磷的动态
摘要本研究旨在研究柑橘(Citrus reticulata Blanco)中磷(P)的内部循环。对育龄果树1年生枝条上的活性器官(芽、花、果、叶、枝)的生物量形成、磷浓度、磷吸收和积累进行了2年的定期检测。两个生产季节的生物量值相近。在新梢活动开始时,一年生新梢生物量占总生物量的比例极低(0.4%)。生物量从生产季节开始时的9.7 kg/棵增加到收获时的62.8 kg/棵。2年间,<1龄嫩枝的P含量为0.11 ~ 0.22%,1龄嫩枝的P含量为0.07 ~ 0.15%,<1龄嫩枝的P含量为0.17 ~ 0.31%,<1龄嫩枝和1龄嫩枝的果实P含量为0.13 ~ 0.26%。采后1年和2年采后磷总积累量分别为82和107 g/棵,1年和2年采后磷总积累量分别为44和48 g/棵。两个生产季节的日平均吸磷量均为0.4 g/株,日磷积累量均在第15 ~ 28天达到最大值。
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来源期刊
International Journal of Fruit Science
International Journal of Fruit Science Agricultural and Biological Sciences-Agronomy and Crop Science
CiteScore
6.40
自引率
0.00%
发文量
64
审稿时长
10 weeks
期刊介绍: The International Journal of Fruit Science disseminates results of current research that are immediately applicable to the grower, extension agent, and educator in a useful, legitimate, and scientific format. The focus of the journal is on new technologies and innovative approaches to the management and marketing of all types of fruits. It provides practical and fundamental information necessary for the superior growth and quality of fruit crops. This journal examines fruit growing from a wide range of aspects, including: -genetics and breeding -pruning and training -entomology, plant pathology, and weed science -physiology and cultural practices -marketing and economics -fruit production, harvesting, and postharvest
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