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  1. Yezin Agricultural University
  2. Department of Agronomy

Effects of Drought and Flooding Stresses on Growth and Photosynthetic Activity of Mungbean,, Vigna radiata (L.) Wiilczek, Cultivars

http://hdl.handle.net/20.500.12678/0000000047
http://hdl.handle.net/20.500.12678/0000000047
cb07f5f2-de43-4d46-9223-dbc0cc282040
ac78f351-8133-4d3c-9ee1-9df019e95e9f
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HHOo.pdf HHOo.pdf (773 Kb)
Publication type
Journal article
Upload type
Publication
Title
Title Effects of Drought and Flooding Stresses on Growth and Photosynthetic Activity of Mungbean,, Vigna radiata (L.) Wiilczek, Cultivars
Language en
Publication date 2005
Authors
OO, Htay Htay
ARAKI, Takuya
KUBOTA, Fumitake
Description
The responses to drought and nooding stresses and the recovery from stress-induced
damages were compared between three mungbean cultivars, Chinese (CN), and newly released
cultivars in Myanmar, VC2991-112B-1B (VC) and KPS2 (KP). Growih, gas exchange rate and
chlorophyll fluorescence quenching of these cultivars were investigated. The results were as
follows: (1) CN was sensitive to both drought and flooding treatments compared to the other
cultivars. VC and KP were less sensitive to drought and flooding, respectively. (2) The
photosynthetic rate (PN) and stomatal conductance (G.) in VC were less affected by drought,
with a quick recovery by re-watering. On the other hand, both parameters in KP were strongly
depressed by drought, but less by nooding. (3) VC showed a higher value for the quantum yield
of photosystem H (<~.) and a lower value for the photorespiration ratio (P,?lTc) than the other
cultivars in the drought treatment. KP had a higher ~)* and lower PR/Tc in the flooding
treatment. (4) The stomatal behavior was closely related to the stress-tolerance of mungbean
cultivars. A partial retainment of gas exchange under the stress conditions was essential to
sustain electron transport in the photosystems and prevent functional damages caused by
excessive accumulation of energy in leaves.
Identifier https://yauor-yau.archive.knowledgearc.net/handle/123456789/103
Journal articles
J. Fac. Agr., Kyushu Univ.
Conference papaers
Books/reports/chapters
Thesis/dissertations
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