Preliminary high-throughput phenotyping analysis in grapevines under drought

被引：4

作者：

Briglia, Nunzio ^{[1
]}

Nuzzo, Vitale ^{[1
]}

Petrozza, Angelo ^{[2
]}

Summerer, Stephan ^{[2
]}

Cellini, Francesco ^{[2
]}

Montanaro, Giuseppe ^{[1
]}

机构：

[1] Univ Basilicata, Dipartimento Culture Europee & Mediterraneo, Potenza, Italy

[2] ALSIA Ctr Ric Metapontum Agrobios, SS Jonica 106,Km 448,2, I-75010 Metaponto, MT, Italy

来源：

CO.NA.VI. 2018 - 7 CONVEGNO NAZIONALE DI VITICOLTURA | 2019年 / 13卷

关键词：

VITIS-VINIFERA L; WATER; STRESS;

D O I：

10.1051/bioconf/20191302003

中图分类号：

S6 [园艺];

学科分类号：

0902 ;

摘要：

This study reports correlative information between leaf water potential (Psi), total leaf area of droughted grapevines (Vitis vinifera L.) and non-destructive image analysis techniques. Four groups of 20 potted vines each were subjected to various irrigation treatments restoring 100% (control), 75%, 50% and 25% of daily water consumption within a 22-day period of drought imposition. Leaf gas exchanges (Li-Cor 6400), Psi (Scholander chamber), fluorescence (PAM - 2500), RGB and NIR (Scanalyzer 3D system, LerrmaTec GmbH phenotyping platform) data were collected before and at the end of drought imposition. Values of Psi in severely stressed vines (25%) reached -1.2 MPa pre-dawn, in turn stomata' conductance and photosynthesis reached values as low as approx. 0.02 mol H2O m(-2) s(-1) and 1.0 mu mol CO2 m(-2) s(-1), respectively. The high-throughput analysis preliminarily revealed a correlation between Psi(stem) and NIR Color Class (R-2=0.80), and that plant leaf area might be accurately estimated through imagine analysis (R-2=0.90).

引用

页数：4

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