CHLOROPHYLL a FLUORESCENCE IN PEACH CULTIVAR MACIEL GRAFTED ON DIFFERENT ROOTSTOCKS

被引：0

作者：

Martinazzo, Emanuela Garbin ^{[1
]}

Silva, Diolina Moura ^{[1
]}

Bianchi, Valmor Joao ^{[1
]}

Bacarin, Marcos Antonio ^{[1
]}

机构：

[1] Univ Fed Espirito Santo ES, Dept Ciencias Biol, Ctr Ciencias Humanas & Nat, BR-29075910 Goiabeiras, ES, Brazil

来源：

REVISTA BRASILEIRA DE FRUTICULTURA | 2012年 / 34卷 / 03期

关键词：

leaf growth; JIP Test; compatibility;

D O I：

10.1590/S0100-29452012000300005

中图分类号：

S6 [园艺];

学科分类号：

0902 ;

摘要：

The objective of this study was to evaluate characteristics of chlorophyll fluorescence in peach trees cv. Maciel grafted on six rootstocks. The analysis of the chlorophyll a fluorescence, the chlorophyll content and length of the leaves began after the winter period and were repeated until approximately 150 days, totaling six samples. The early ontogeny of the leaves was characterized by some higher fluorescence parameters. High rainfall, which occurred between 61 and 112 days of the beginning of the experiment, was the environmental factor that caused the greatest change in the parameters of the JIP Test, especially those related to photosystem I. The chlorophyll content was not influenced by the effect of associations cup x rootstock. Fall in the PITOTAL were in the period of highest rainfall, behavior that was independent of the rootstock, except for plants grafted on rootstock Rubira, who had minor damage to the photosynthetic apparatus. In general, rootstocks studied in combination with cv. Maciel did not affect the absorption and utilization of light energy by photosynthetic system.

引用

页码：678 / 685

页数：8

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