Abstract
Water salinity and nitrogen fertilization in the production and quality of guava fruits
Highlights
Guava has great importance among the fruit crops cultivated and commercially exploited in irrigated areas of Northeast Brazil, it stands out among the fruit crops with the highest economic value, due to its consumption being both in natura and as industrialized product, being one of the main factors of its exploitation (ALENCAR et al, 2016)
This study aimed to evaluate the effects of saline water and N doses on the production components and fruit quality of guava in two production cycles
The absence of a significant effect of N doses on the studied variables was possibly due to the source of N fertilizer used associated with high volatilization potential and/or N applied may have inhibited its interaction with water salinity, independently of the growing cycle
Summary
Guava has great importance among the fruit crops cultivated and commercially exploited in irrigated areas of Northeast Brazil, it stands out among the fruit crops with the highest economic value, due to its consumption being both in natura and as industrialized product, being one of the main factors of its exploitation (ALENCAR et al, 2016) This fruit has a characteristic flavor and aroma with high food value, and can be consumed in the form of concentrated juices, jams, jellies, liqueurs, ice creams (HERNANDES et al, 2012). Concentrations of salts in the soil solution that limit plant growth and development vary widely among genotypes, but plant responses depend on the salt levels, duration of plant exposure to saline stress, and stage of plant development (DEUNER et al, 2011) In this context, several studies have been carried out with the purpose of verifying the effects of irrigation with different levels of water salinity on guava cultivation. Távora et al (2001), analyzing the growth and water relations of guava seedlings 'Rica' variety, in nutrient solution, observed that the increase of electrical conductivity of irrigation water (ECw) from 1.6 to 16.2 dS m-1, promoted a decrease
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