Effect of benzyladenopurine concentration in soaking solution on growth of mungbean sprouts

Effect of benzyladenopurine concentration in soaking solution on growth of mungbean sprouts

2004

A:PS

A study was done to determine the effect of different BA concentrations during 5-h imbibition on the growth and morphological characters of mung bean sprouts. Mung bean seeds of 3 cultivars (Keumseongnogdu, Owoolnogdu, and Zhong Lu 1) were imbibed for 5 h in solutions with different BA concentrations (0, 25, 50, 75 and 100 ppm) before 3-h aeration. On the 6th day after culture, the mung bean sprouts were classified by 4 categories based on hypocotyls: >7 cm, 4 to 7 cm, <4 cm, and non-germination, and their morphological characters, fresh and dry weights were measured. Regardless of the cultivar, the composition rate of hypocotyls of longer than 7 cm decreased with increasing BA concentration over 50 ppm. The reverse result was true in the rate of shorter than 4 cm. In the rate of 4 to 7 cm, Owoolnogdu showed the highest rate in its 50 ppm concentration although Keumseongnogdu and Zhong Lu 1 showed similar results to the above two rates. The formation rate and number of lateral roots were significantly changed at approximately 50 ppm, but the roots were not formed at concentrations over 75 ppm. Hypocotyl and root lengths of all the cultivars were shortened with increased BA concentration. In the diameter of middle part of hypocotyls, 3 cultivars showed nearly the same responses as the rate of 4 to 7 cm hypocotyls. Hypocotyl and total fresh weights per sprout were heavier in BA-treated sprouts than in untreated ones but the weights of the former sprouts were not influenced by the different BA concentrations.

v.49(6):482-486, KOREAN JOURNAL OF CROP SCIENCE

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