16种山蚂蝗属种质资源营养价值评价  

Evaluation of the nutritional value of 16 Desmodium germplasms

作　　者：杨孝奎 黄冬芬[1] 胡安 郇恒福[1] 郇树乾[2] 刘国道[1] 刘许霖 YANG Xiaokui;HUANG Dongfen;HU An;HUAN Hengfu;HUAN Shuqian;LIU Guodao;LIU Xulin(Tropical Crops Resources Institute,Chinese Academy of Tropical Agricultural Sciences/Key Laboratory of Crop Gene Resources and Germplasm Enhancement in South China,Ministry of Agriculture and Rural Affairs/Key Laboratory of Conservation and Utilization of Cassava Genetic Resources,Ministry of Agriculture and Rural Affairs,Haikou 571101,Hainan,China;College of Animal Science and Technology of Hainan University,Haikou 570228,Hainan,China;College of Agriculture,Heilongjiang Bayi Agricultural University,Daqing 163316,Heilongjiang,China)

机构地区：[1]中国热带农业科学院热带作物品种资源研究所/农业农村部华南作物基因资源与种质创制重点实验室/农业农村部木薯种质资源保护与利用重点实验室,海南海口571101 [2]海南大学动物科技学院,海南海口570228 [3]黑龙江八一农垦大学农学院,黑龙江大庆163316

出　　处：《草业科学》2023年第3期716-723,共8页Pratacultural Science

基　　金：财政部和农业农村部国家现代农业产业技术体系(CARS-22);海南省自然科学基金项目(2019CXTD415);中央级公益性科研院所基本科研业务费专项资金(1630032017032、1630032022029、PZS2021013)。

摘　　要：山蚂蝗属(Desmodium)是世界上重要的热带豆科牧草,目前国内仅有一个国审品种,无法满足南方草牧业发展对种质资源品种多样化的需求。国外安全引种是增加我国南方牧草品种多样化的有效途径。本研究以国审品种‘热研16号’卵叶山蚂蝗(D.ovalifolium‘Reyan No.16’)为对照,从粗蛋白、粗脂肪、粗纤维含量等10个指标评价了从国际热带农业中心引进的16个山蚂蝗种质资源的营养品质。结果表明,光滑山蚂蝗、变色山蚂蝗、乳突叶山蚂蝗、楔叶山蚂蝗、威格斯山蚂蝗、斜茎山蚂蝗、粗毛山蚂蝗、木豆叶山蚂蝗、柳叶山蚂蝗9份山蚂蝗资源的综合评分高且单宁含量显著低于(P<0.05)对照或者与对照无显著差异(P>0.05),可作为优质的山蚂蝗牧草品种资源;其余7份单宁含量较高且资源综合评分不高,可作为绿肥或者覆盖作物品种资源。本研究为南方山蚂蝗属牧草资源培育提供了新的种质材料,有利于满足我国南方草牧业发展对优质牧草的多样化需求。Desmodium is an important tropical leguminous forage crop.To date,there is only one national variety,which cannot meet the diverse requirements for the development of grass and husbandry industries in the south of China.The safe introduction of foreign germplasms is an effective way to increase the diversification of forage varieties in southern China.The nutritional value of 16 new species of Desmodium introduced from the International Center for Tropical Agricultural(CIAT)was evaluated in this study using the national variety D.ovalifolium‘Reyan No.16’as the control.The evaluation index included 10 items,such as crude protein,ether extract,and crude fiber,among others.Results showed that among Desmodium species,D.Glabrum,D.discolorand,D.pabulare,D.cuneatum,D.wigginsii,D.distortum,D.barbatum,D.cajanifolium,and D.salicifolium had higher comprehensive scores for nutritional value and lower or similar tannin content compared with those of CK.These germplasms could thus be used as potential materials to breed new varieties of Desmodium for pastures.The other seven germplasms had relatively lower comprehensive scores,and thus could be used as germplasm resources for green manure or cover crops.This study provides good germplasms to breed new varieties of Desmodium in southern China,which will be beneficial for the diverse requirements of forage and animal husbandry industry development in southern China.

关 键 词：山蚂蝗 营养价值 单宁含量 综合评价 种质资源 南方草牧业 

分 类 号：S54[农业科学—作物学]