Mimosine levels of different parts and height classes of Leucaena leucocephala (Lam) de Wit [Philippines]
1979
Ronia, E. | Endrinal, B. | Mendoza, T.E.M. (University of the Philippines at Los Banos, College, Laguna. Inst. of Plant Breeding)
Mimosine levels of young and mature leaves, green seeds and pods of 16 varieties of three height classes (tall, intermediate, and short of Leucaena leucocephala or ipil-ipil were determined. Young leaves contained 6.77 percent mean mimosine, d.w. basis more than twice the level in mature leaves (2.92 percent). Seeds had the largest amounts (7.21 percent) while pods contained 3.66 percent mean mimosine. Native intermediate varieties contained about 30 percent more mimosine in pods and mature leaves than the intermediate accessions of foreign origin. The tall varieties were found to have the lowest mimosine levels in mature leaves (1.4 percent) with the Nigeria accession having the lowest value (1.00 percent). Protein content of young leaves was 1.5 times higher than that of mature (34.63 percent) vs. 21.12 percent mean protein, d.w. basis). The intermediate class had the highest mean protein content of 37.42 and 22.00 percent in young and mature leaves respectively. The average protein level of green pods was 20.79 percent, the highest (22.28 percent) being found in native intermediate samples. Highly significant differences in mimosine and protein levels with respect to height class, accession, plant part and interaction among them were obtained.
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