VALIDACIÓN DEL ÍNDICE DE ESTRÉS HÍDRICO DE CULTIVO (CWSI) MEDIANTE TERMOGRAFÍA INFRAROJA Y SU INCIDENCIA EN RENDIMIENTO Y CALIDAD EN MANZANAS ‘ROYAL GALA’

IF 0.3 Q4 AGRONOMY

Chilean Journal of Agricultural & Animal Sciences Pub Date : 2020-03-01 DOI:10.29393/chjaas36-18vicq50018

Celerino Quezada, Richard M. Bastías, R. Quintana, Raimundo Arancibia, A. Solís

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引用次数: 0

Abstract

Infrared thermography is an efficient methodology to monitor plant water status under field conditions. The objective of this research was to validate the use of Crop Water Stress Index (CWSI) as an indicator of plant water status in ‘Royal Gala` apples and evaluate its effect on yield and fruit quality in the Ñuble Region, Chile. The experimental design was completely randomized blocks with two water treatments: irrigated and non-irrigated. Canopy temperature, soil moisture, xylem water potential (Ψx), fruit yield and fruit quality were evaluated. The results showed significant differences between the treatments and a moderate positive correlation between xylem water potential and CWSI (R2 = 0.67). Fruit yield and quality showed significant differences between the treatments; the non-irrigated treatment presented a decrease in size and yield, but an increase in the amount of total soluble solids. The CWSI was not a good indicator of plant water status, fruit yield or fruit quality in ‘Royal Gala’ apples.

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用红外热像仪验证作物水分胁迫指数及其对“皇家晚会”苹果产量和质量的影响

红外热像仪是田间监测植物水分状况的有效方法。本研究的目的是验证作物水分胁迫指数(CWSI)作为“Royal Gala”苹果植株水分状况的指标的使用，并评估其对智利Ñuble地区产量和果实品质的影响。试验设计为完全随机区组，采用灌溉和非灌溉两种水处理。评价了冠层温度、土壤湿度、木质部水势(Ψx)、果实产量和果实品质。结果表明，不同处理间差异显著，木质部水势与CWSI呈中等正相关(R2 = 0.67)。果实产量和品质在不同处理间差异显著;不灌水处理籽粒大小和产量下降，但可溶性固形物总量增加。CWSI不能很好地反映“Royal Gala”苹果植株水分状况、果实产量或果实质量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chilean Journal of Agricultural & Animal Sciences AGRONOMY-

CiteScore

0.70

自引率

0.00%

发文量

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