Effect of gibberellic acid on starch content of soybean (Glycine max L.) and its correlation with extension growth

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概要

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• This investigation was undertaken to study the effect of GA_3 on extension growth of Glycine max L. and on starch content of its individual internodes at maturity. The effect on hydrolytic activity of the extract of different internodes was also studied. GA_3 stimulates the extension growth of stem by increasing the elongation of those internodes which are either in the process of elongation or being differentiated at the time of treatment. Starch content decreases with the position of the internode (from base upwards) on the intact plant. Corresponding internodes have minimum starch content in 100 ppm GA_3-treated plants and maximum in the controls. Internodes which show the maximum elongation due to GA_3 treatment, show the least starch content and also show maximum hydrolytic activity during the period of elongation. It is suggested that enhanced extension growth is brought about by enhanced mobilization of reserve food by GA_3.

• 日本植物生理学会の論文

著者

• Dhindsa R.s.

  Botany Department Panjab University

• Nanda K.k.

  Botany Department Panjab University

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• Effects of GA_3 and IBA on rooting and on the sprouting of buds on stem cuttings of Ipomoea fistulosa
• Effect of gibberellic acid on starch content of soybean (Glycine max L.) and its correlation with extension growth

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