栽培密度对胡芦巴生产性能和生物量分配的影响  

Effect of Cultivated Density on the Productive Performance of Trigonella foenum-graecum and the Partitioning of the Biomass

作　　者：张建全[1] 谢文刚[1] 王彦荣[1] 

机构地区：[1]兰州大学草地农业科技学院,甘肃兰州730020

出　　处：《安徽农业科学》2013年第34期13133-13135,共3页Journal of Anhui Agricultural Sciences

基　　金：国家基础研究发展规划项目(2014CB138704);国家自然科学基金项目(31302023);中央高校基本科研业务费项目(lzujbky-2013-81)

摘　　要：应用盆栽试验研究了栽培密度对胡芦巴（Trigonella foenum-graecumL.）形态特征和生物量分配的影响.结果表明,胡芦巴株高介于16～23 cm之间,分枝数2～3个,节数为11节左右,6～8节的节间距呈中间长两头短的趋势,复叶长较复叶宽短,顶生小叶长与宽除3株/盆处理外,其他处理下均成长∶宽为3∶2的特征;根冠比为0.55 ～0.61,茎叶比为0.64 ～0.73,干鲜比为0.13 ～0.19,光合产物茎叶根的于重分配比例为13∶ 18∶1至32∶42∶1,生物量测算结果表明,胡芦巴单位面积鲜产为8 306.2～8 324.8 kg/hm2,产干草505.9～512.7kg/hm2,侧根较发达,占总根系的50％ ～ 62％.探明胡芦巴是一种侧根较发达,叶量丰富,适口性较强的牧草,适宜于水土保持和护坡的种植.建议栽培密度566～890株/m2,可适当密植.Effect of cultivated density on the productive performance and the characteristic of partitioning of biomass were studied using the plot experiment. Four density treatments were set： 3 head/plot, 5 head/plot, 10 head/plot, and 15 head/plot. The results show the ratio of length to width of the cotyledon was 2.5： 1, the ratio of length to width of the first leave was 1 ： 1, the compound leave width was higher than that of the length, the ratio of length to width of leavelet lived on the top of the compound leave was 3：2 except the first treatment. The study findings show the ration of roots system to the up-ground in common fenugreek was 0.55 - 0.61, the ratio of stem to leave was 0.64 - 0.76, the dried matter account for 13% - 19% of fresh matter, the partitioning ratio of stem, leave and root of product of photothysis ranged from 13 ： 32：1 to 18： 42：1 ,the lateral root system took about 50% to 62% of the total root system when they were air-dried, the fresh biomass in unit area of common fenugreek varied with 8 306.2 kg/hm2 and 8 324.8 kg/hm2, accordingly , the dried matter ranged from 505.9 to 512.7 kg/hm2 , the appropriate cultivated density was 566 - 850 heads per unit area in the field conditions.

关 键 词：胡芦巴 根冠比 茎叶比 生物量分配 侧根 牧草产量 TRIGONELLA foenum-graecum L 

分 类 号：S544.9[农业科学—作物学]