Responses of Two Asian Pear Rootstocks (Pyrus spp.) to Fe-deficiency Chlorosis Induced by Addition of Bicarbonate to Nutrient Solution
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- Ma Chunhui
- Faculty of Agriculture, Tottori University
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- Tanabe Kenji
- Faculty of Agriculture, Tottori University
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- Itai Akihiro
- Faculty of Agriculture, Tottori University
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- Tamura Fumio
- Faculty of Agriculture, Tottori University
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- Teng Yuanwen
- Department of Horticulture, College of Agriculture and Biotechnology Zhejiang University
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- Chun Jong-Pil
- Faculty of Agriculture, Chungnam National University
Bibliographic Information
- Other Title
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- 重炭酸塩がアジアナシ台木種の鉄欠乏クロロシスに及ぼす影響
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Abstract
To evaluate the tolerance of two Asian pear rootstock species, Pyrus xerophila Yü and Pyrus betulaefolia Bunge, to lime-induced Fe chlorosis, seedlings were grown in a nutrient solution with or without bicarbonate. After 20 days in the bicarbonate solution, P. betulaefolia seedlings became chlorotic, a symptom of Fe-deficiency, whereas those of P. xerophila did not. Leaves of the P. xerophila had higher chlorophyll (SPAD value) while the stem amassed more Fe than did those of P. betulaefolia, which indicates that the former may be more tolerant to lime-induced Fe chlorosis than may be the latter. Furthermore, higher Fe3+-chelate reductase activity in root tips was observed in two pear rootstocks grown in the bicarbonate solution; seedling of P. xerophila had twice the activity than had those of P. betulaefolia seedlings. Hence, we propos that Fe3+-chelate reductase activity in roots tips may be a useful physiological index to select rootstock genotypes that are tolerant to Fe-deficiency chlorosis.<br>
Journal
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- Journal of the Japanese Society for Horticultural Science
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Journal of the Japanese Society for Horticultural Science 75 (3), 219-223, 2006
THE JAPANESE SOCIETY FOR HORTICULTURAL SCIENCE
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Keywords
Details 詳細情報について
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- CRID
- 1390001206301464320
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- NII Article ID
- 110004718498
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- NII Book ID
- AN00025257
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- ISSN
- 1880358X
- 00137626
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- NDL BIB ID
- 7906367
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- Abstract License Flag
- Disallowed