Adaptation to Heat and Drought Stresses in Snap Bean (Phaseolus vulgaris) during the Reproductive Stage of Development
ISSN | 00213551 |
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書誌レコードID(総合目録DB) | AA0068709X |
We screened snap bean (Phaseolus vulgaris L.) germplasm for heat and drought tolerance during the reproductive stage under extremely hot conditions as well as in the winter seasons in closed net houses to raise the temperatures under field conditions, a practice usually followed by vegetable growers. Substantial genotypic differences were found in morpho-physiological characteristics like phenology, plant water relations, photosynthetic parameters and shoot growth, which were related to the reproductive responses. The associations of days to podding and leaf water content with the number of pods per plant and seed yield were consistent across the different environments and experiments. The leaf water content was maintained by reductions in leaf water potential and shoot extension in response to heat and drought stress. Therefore, these traits can be used as a marker to screen germplasm for heat and drought tolerance. In this paper, we briefly reviewed the results of our studies carried out on heat and drought tolerance in snap bean at Okinawa Subtropical Station, Ishigaki.
刊行年月日 | |
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作成者 | KUMAR Ashok OMAE Hide EGAWA Yoshinobu KASHIWABA Kouichi SHONO Mariko |
著者キーワード |
phenology photosynthetic parameters plant water relations shoot growth |
公開者 | Japan International Research Center for Agricultural Sciences |
オンライン掲載日 | |
国立情報学研究所メタデータ主題語彙集(資源タイプ) | Journal Article |
巻 | 40 |
号 | 3 |
開始ページ | 213 |
終了ページ | 216 |
DOI | 10.6090/jarq.40.213 |
権利 | Japan International Research Center for Agricultural Sciences |
言語 | eng |