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首页> 外文期刊>Journal of Agricultural Science >Variation of Thermal Time, Phyllochron and Plastochron in Passion Fruit Plants With Irrigation Depth and Hydrogel
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Variation of Thermal Time, Phyllochron and Plastochron in Passion Fruit Plants With Irrigation Depth and Hydrogel

机译：灌水深度和水凝胶对百香果植物的热时间，叶同步和等时变化的影响

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摘要

The passion fruit demands water for its growth and production. Water management is relevant in regions characterized by low rainfall indices, such as semi-arid regions. In this direction, the use of hydrogel in the soil allows the water that is supplied through irrigation to be better utilized by the plants, reducing leach losses. The objective of this experiment was to evaluate the influence of hydrogel in soil cultivated with passion fruit and irrigated to various water depths on the thermal time of the phenological stages, phyllochron and plastochron of the plants. Treatments were distributed in randomized blocks in a 2 × 5 factorial arrangement, referring to the soil without and with hydrogel and raising the irrigation depth from 60% to 70%, 80%, 90% and 100% of crop evapotranspiration in four replications. The thermal requirements of the phenological phases and of the whole plant cycle, phyllochron of the main stem and the productive branches, and plastochron were evaluated. Increasing the irrigation depth from 60% to 100% reduced the total thermal time values from 3,811.8 to 2,401.3 °C day and from 3,707.8 to 2,628.7 °C day in the soil without and with hydrogel, respectively. The thermal time of the phenological phases and the phyllochron of the main stem and productive branches of the passion fruit were stimulated by an increase in irrigation depth.
机译：百香果的生长和生产需要水。水资源管理在降雨指数低的地区（如半干旱地区）具有重要意义。在这个方向上，在土壤中使用水凝胶可使通过灌溉提供的水更好地被植物利用，从而减少了沥滤损失。本实验的目的是评估水凝胶在百香果栽培和灌溉至不同水深下的土壤中对植物物候期，叶序和植株热时间的影响。处理以2×5因子分布的方式随机分配，是指无水凝胶和有水凝胶的土壤，并将灌溉蒸腾量从农作物蒸散量的60％分别提高到70％，80％，90％和100％，重复四次。评估了物候期和整个植物周期的热需求，主茎和生产性枝的叶同步以及塑性同步。在没有水凝胶和有水凝胶的情况下，将灌溉深度从60％增加到100％可以将总热时间值分别从31.81.8天降低到2,401.3°C天和3,707.8天降低到2,628.7°C天。灌溉深度的增加刺激了西番莲物候期的热时间和西番莲主要茎和生产性枝的叶同步。

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