摘要
Flemingia macrophylla (Willd.) Merrill is a drought-tolerant, tropical multipurpose shrub legume especially suited to low-input smallholder production systems, as a dry season forage supplement, live soil cover, mulch and living barrier, among others. The diversity of the world collection of 70 accessions classified as F. macrophylla was assessed using 14 morphological and phenological traits, and in terms of agronomic and forage potential. One erect and three semi-erect morphotypes were identified based on differences in plant height, flower and seed colour, inflorescence and peduncle length, and stem pubescence. Large variability in dry matter (DM) production (5–586 and 2–272 g plant−1 in the maximum and minimum rainfall periods, respectively), in vitro DM digestibility (IVDMD, 307–543 g kg−1) and crude protein content (169–237 g kg−1) was measured. The accessions CIAT 18437, CIAT 21083 and CIAT 21090 were identified as promising in terms of productivity and digestibility. Their IVDMD ranged up to 541 g kg−1 in the maximum and up to 507 g kg−1 in the minimum rainfall period. DM yield and IVDMD in the three selected accessions were superior to the control CIAT 17403. An exploratory cafeteria grazing trial showed that F. macrophylla was palatable in the minimum but not consumed in the maximum rainfall period. Further morphological studies on inflorescence characteristics of herbarium specimens and molecular marker studies are warranted to clarify the taxonomic status (subspecies or varieties) of the four morphotypes identified. Further development, such as palatability studies with a selected set of accessions, can make Flemingia a valuable feed alternative.
摘要译文
Flemingia macrophylla（Willd。）Merrill是一种耐旱的热带多用途灌木豆科植物，特别适合于低投入的小农生产系统，作为干季牧草补充剂，活土壤覆盖层，覆盖层和生物屏障等。 70个种质的世界收藏的多样性被归类为F.使用14种形态和物候性状，以及农学和饲料潜力来评估mac mac。根据植物高度，花和种子颜色，花序和花序梗长度以及茎生毛的不同，确定了一个直立和三个半直立的形态类型。在干物质（DM）生产中（在最大和最小降雨期分别为5-586和2-272g植物-1），体外DM消化率（IVDMD，测量307-543g kg -1）和粗蛋白质含量（169-237g kg -1）。种质CIAT 18437，就生产力和消化率而言，CIAT 21083和CIAT 21090被认为是有前景的。它们的IVDMD在最大降雨期最高达到541 g kg-1，最高达到507 g kg-1 / sup。三个选择的材料的DM产量和IVDMD优于对照CIAT 17403.探索性的食堂放牧试验显示F.mac was在最低降雨期内最低，但没有消耗。有必要对植物标本的花序特征和分子标记研究进行研究，以明确所鉴定的四种形态类型的分类地位（亚种或品种）。进一步的发展，如选择一组加入的适口性研究，可以使Flemingia成为一种有价值的饲料替代品。
M.S.Andersson[a][b];R.Schultze-Kraft[b];M.Peters[a];B.Hincapié[a];C.E.Lascano[a];. Morphological, agronomic and forage quality diversity of the Flemingia macrophylla world collection[J]. Field Crops Research, 2006,96(2-3): 387-406