Response of stress irrigation management on chlorophyll content, water potential, PAR and canopy temperature in tomato (Lycopersicum Esculentum Mill.)

Q3 Agricultural and Biological Sciences

Journal of Agrometeorology Pub Date : 2023-08-31 DOI:10.54386/jam.v25i3.2172

K. Chavan, P. Bodake

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引用次数: 0

Abstract

This study was conducted to investigate the response of stress irrigation management on chlorophyll content, water potential, photosynthetically active radiation (PAR) and canopy temperature in tomato during summer season. The main plot treatments consist of three drying cycles that is 7, 11 and 15 days and sub treatments include four irrigation levels viz.,60, 80, 100, and 120 % ETC. The control treatments i.e. drip irrigation with 100% ETC on every two alternate days. The results showed that the 7 days drying cycle showed maximum chlorophyll content, absorbed PAR and leaf water potential followed by 11 days drying cycle. Among the drip irrigation levels, the maximum drip irrigation levels 120 % ETC exhibited significantly maximum chlorophyll content, absorbed PAR and leaf water potential. However, it was at par with 100 % ETC and further 80 % ETC drip irrigation level also showed significant at 90 and 120 DAT. While in the case of difference between canopy and air temperature (Tc-Ta) less negative values were noted by 7 days drying cycle and 120% ETC drip irrigation level.

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胁迫灌溉管理对番茄叶绿素含量、水势、PAR和冠层温度的响应

研究了胁迫灌溉管理对夏季番茄叶绿素含量、水势、光合有效辐射(PAR)和冠层温度的影响。主要地块处理包括3个干燥周期，即7、11和15天，次处理包括4个灌溉水平，即60、80、100和120%等。对照处理为每隔两天用100% ETC滴灌。结果表明:叶片叶绿素含量、PAR吸收量和叶片水势在7 d的干燥周期内最高，11 d的干燥周期次之;在不同滴灌水平下，最大滴灌水平为120% ETC时，叶绿素含量、PAR吸收和叶片水势均达到最大。然而，与100% ETC水平相当，进一步80% ETC滴灌水平在90和120 DAT也显示出显著性。而在冠层与气温(Tc-Ta)差异的情况下，7 d的干燥周期和120% ETC的滴灌水平均出现较少的负值。

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

Journal of Agrometeorology 农林科学-农艺学

CiteScore

1.40

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Agrometeorology (ISSN 0972-1665) , is a quarterly publication of Association of Agrometeorologists appearing in March, June, September and December. Since its beginning in 1999 till 2016, it was a half yearly publication appearing in June and December. In addition to regular issues, Association also brings out the special issues of the journal covering selected papers presented in seminar symposia organized by the Association.