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首页> 外文期刊>Acta Horticulturae >Physiology of growth and development in loquat fruit.
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Physiology of growth and development in loquat fruit.

机译：lo果实生长发育的生理学。

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摘要

In the northern hermisphere, loquat fruit sets at the beginning of December and grows for four months. Loquat fruit has a sigmoidal pattern of growth. From fruit set to February, fruit grows slowly and seeds are the main relative fruit component, contributing in a high proportion to the total dry weight. From early March to maturity, fruit growth accelerates, showing two peaks of growth-rate, early in March and from the late March to harvest, reaching 80% of its final weight in 45 d. Two weeks before colour break, flesh exceeds seed in weight and becomes the main contributor to fruit weight, both fresh and dry weight. At harvest, the flesh tissue represents, approximately, 80 and 45% of total fresh and dry fruit weight, respectively. Flesh cell expansion is depending on turgor pressure due to water uptake, which takes place very fast during the last three weeks of fruit development. This increase in water uptake is also due to the accumulation of carbohydrates, particularly sucrose and, in a lower proportion, fructose, glucose and sorbitol, and mineral elements, =mainly K and N. There is still no convincing demonstration that loquat is a climacteric fruit. Hormonal control plays an important role in fruit development.
机译：在北半球，lo果于12月初凝固，并生长四个月。果有S型生长。从坐果期到2月，果实生长缓慢，种子是主要的相对果实成分，占总干重的比例很高。从3月初到成熟，果实的生长加速，在3月初和从3月下旬到收获的三个阶段，显示出增长率的两个峰值，在45天内达到其最终重量的80％。断色前两周，果肉的重量超过种子重量，并且成为新鲜和干重水果重量的主要贡献者。收获时，果肉组织分别占新鲜和干燥水果总重量的约80％和45％。果肉细胞的膨胀取决于水摄入引起的膨大压力，在果树发育的最后三周内，果肉的膨胀非常快。摄水量的增加还归因于碳水化合物的积累，特别是蔗糖的积累，以及果糖，葡萄糖和山梨糖醇以及较低比例的矿物质元素（主要是钾和氮）的积累。仍然没有令人信服的证据表明that是更年期的水果。激素控制在水果发育中起重要作用。

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