黄西番莲培养中的盐胁迫与环境

Tamires Da Conceição Mendes Semedo, Geocleber Gomes de Sousa, Henderson Castelo Sousa, Bubacar Baldé, Carla Ingryd Nojosa Lessa, José Thomas Machado de Sousa
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引用次数: 1

摘要

盐胁迫对作物的出苗期和初期生长有不利影响。然而,使用受保护的环境是增强这些参数的一种替代方法。目的是评价不同环境和灌溉水盐度对西番莲黄苗出苗发育的影响。这项实验是在巴西雷登 奥市的非裔巴西语国际整合大学进行的。试验设计采用完全随机的细分样地方案,设置4种不同遮光屏(黑屏;白色的屏幕;红色屏幕;都有50%的阴影;灌溉水电导率分别为0.3 dS - m-1和3.0 dS - m-1, 5次重复25粒种子。黑色屋面50%的保护地在西番莲出苗率、苗高、茎粗、叶数和胚根长等方面均优于其他保护地。施用50%黑色遮荫布后,盐对出苗率和地上部干物质的有害影响降低。用高导电性的水灌溉导致百香果的出现减少和延迟。对苗高、茎粗、地上部干物质均有负向影响。
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Salt stress and ambience in the culture of yellow passion-fruit
Salt stress negatively affects the emergence and initial growth of crops. However, the use of protected environments emerges as an alternative to enhance these parameters. In this sense, the objective was to evaluate the effect of different environments and the salinity of the irrigation water on the emergence and development of yellow passion-fruit seedlings. The experiment was conducted at the University for International Integration of the Afro-Brazilian Lusophony, in the city of Redenção, Ceará. The experimental design was entirely randomized in a subdivided plot scheme, with four cultivation environments under different shading screens (black screen; white screen; red screen; all with 50% shading; and full sun), and two electrical conductivities of irrigation water: 0.3 dS m-1 and 3.0 dS m-1, with five repetitions of 25 seeds. The protected environment with 50% black roofing stood out from the others providing a better percentage of emergence, seedling height, stem diameter, number of leaves and radicle length in yellow passion-fruit. The deleterious effects of salts on the rate of emergence and shoot dry matter were reduced when the 50% black shade cloth was used. Irrigation with water of higher conductivity caused reductions and retardation in the emergence of passion-fruit. Besides negatively affecting seedling height, stem diameter and shoot dry matter.
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