Rapid Identification on Reproductive Growth Processing of Moth Orchid with Chlorophyll Fluorescence Parameters
Lu Jiansheng
Ding Pengsong
Jiang Ping
Abstract：To study the influences of temperature on reproductive growth of moth orchid ( Phalaenopsis amabilis), 3 cultivars including ‘0448’,‘Konggangshengshi ’ and‘Fengye’ were used as materials to study the effects of different temperatures on flower bud differentiation by the chlorophyll fluorescence measurement and statistical method .The results indicated that: ( 1 ) the flower bud differentiation of moth orchid needed vernalization, and the flower bud initiation could started within one month if the temperature was 26/18℃(day/night), while there were no flower bud sprouted in control group at 29/21℃(day/night).(2) The low temperature could lead to the decrease of Fv/Fm but the increase of Fo ,so chlorophyll fluorescence parameters could sensitively reflect the changes of photosynthetic apparatus caused by low temperature .In conclusion , Fv/Fm and Fo could be as the indicators to indirectly test flower bud differentiation rapidly , and forecast the stalk emergence time and florescence .
Keywords：Moth orchid ( Phalaenopsis amabilis)Low temperatureFlower bud differentiationChlo-rophyll fluorescence parameter
Publication Date：2014-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 40-42,46 )