Changes of chemical composition of leaf, stem and pod with seeds and degradability of stem in Sesbania cannabina Pers. with advancing maturity
1994
Enishi, O. (Hokuriku National Agricultural Experiment Station, Joetsu, Niigata (Japan)) | Shijimaya, K. | Shioya, T. | Ikeda, K. | Kariya, Y.
Experiments were carried out to determine the changes of chemical composition of plant parts and cell wall degradability of stem in Sesbania cannabina Pers. with advancing maturity. The results obtained were summarized as follows: 1) The contents of organic matter (OM), organic cell wall (OCW), acid detergent fiber (ADF) and acid detergent lignin (ADL) of stem increased and ADF, ADL of leaf and crude protein (CP) and water soluble carbohydrate (WSC) of stem inversely deceased with advancing maturity. The contents of OM, OCW, ADF and ADL in stem were higher than those in leaf. The content of WSC of whole plant was ranging from 6.1-7.8%. 2) The content of Ca, Mg, P and K in stem decreased with advancing maturity. The higher content of Ca, Mg and K were measured in leaf than in stem, and the Na content was higher in stem than in leaf. 3) The contents of aspartic acid (Asp) in total nitrogen of stem and of whole plant increased and methionine (Met) in leaf inversely decreased with advancing maturity. The contents of Asp and glutamic acid (Glu) of leaf and of whole plant were the highest, followed by Leucin (Leu), and the contents of Asp in leaf and pod with seeds were highest, with decreasing order of Glu and Leu. 4) Cell wall degradability of stem by cellulase decreased with advancing maturity. 5) Therefore, we thought that, for the nutritive value of Sesbania, it is the better way to cut an early stage which was relatively low in fiber content. And it was suggested that the amino acid composition of Sesbania was generally the same as alfalfa except Met
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