Effects of Flooding and Drought Conditions on Growth of Phasey Bean (Macroptilium lathyroides L.URB.)

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  • 熱帯マメ科牧草ファジービーン(Macroptilium lathyroides L.URB.)の生長に及ぼす湛水および旱魃の影響
  • 熱帯マメ科牧草ファジービーン(Macroptilium lathyroides L.Urb.)の生長に及ぼす湛水および旱魃の影響〔英文〕
  • ネッタイ マメカ ボクソウ ファジービーン Macroptilium lath

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A pot experiment, in a rain shelter covered with transparent polyvinyl chloride sheet, was conducted to evaluate the effects of flooding and drought conditions on morphological and agronomical characteristics of phasey bean (Macroptilium lathyroides L.URB.) during its vegetative and reproductive stages. The experiment was carried out at the Nihon University Farm located in Fujisawa from June to October 1990. When the plants were still in vegetative stage the treatments of flooding and drought were initiated. Same treatments were commenced at the flowering stage and also at the ripening stage. In the flooding treatment the pots were flooded by watering up to 5 cm from soil surface. On the other hand, the drought treatment was not irrigated. The flooding led to develop grater elongation of plant length and higher DM yield with more suitable growth parameters, and more numerous nodule number than those in normal and drought conditions. The results indicated that, when the flooding was initiated at the vegetative stage, the dry matter yield appeared to be largest. In the same way, the detrimental effect of drought on the plant was observed to be less when it was initiated at the vegetative stage.

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