本文通过引进13个紫花苜蓿品种,以巨能7为对照,在宁夏引黄灌区种植后进行了三年的比较试验,旨在研究半秋眠级紫花苜蓿在本地的生长、产量及营养品质表现,以期获得适宜当地种植的优良苜蓿品种。结果表明,秋眠级在4.9~5.2之间的苜蓿品种劲...本文通过引进13个紫花苜蓿品种,以巨能7为对照,在宁夏引黄灌区种植后进行了三年的比较试验,旨在研究半秋眠级紫花苜蓿在本地的生长、产量及营养品质表现,以期获得适宜当地种植的优良苜蓿品种。结果表明,秋眠级在4.9~5.2之间的苜蓿品种劲能5020、SW5909、WL366HQ品种以及秋眠级为6级的探戈品种,其生长性状、产量及营养品质优于其他品种,显著高于对照巨能7,综合当地气候特点及各品种三年的生长表现,苜蓿品种劲能5020、SW5909、WL366HQ、探戈表现最好,适宜作为宁夏引黄灌区推广的首选品种。This paper, by introducing 13 varieties of alfalfa (Medicago sativa L.) which were done a three-year experiment in Yellow River irrigation Ningxia district and were compared to the variety whose name is Power VII, aims to study on performances about their growth, production and nutritional qualities of different varieties of Medicago sativa with different FDR, and expects to gain fine varieties that fit local conditions. The results shows that varieties, whose names are Power 5020, SW5909, and WL366HQ with FDR between 4.9 and 5.2, and the variety whose name is Tango with FDR 6, are significantly higher than Power VII and are superior to others in performances about their growth, production and nutritional qualities. Therefore, local climate and there-year performances considered among all varieties, the varieties whose names are Power 5020, SW5909, WL366HQ and Tango are the pre-eminent varieties of Medicago sativa in Yellow River irrigation Ningxia district due to their excellent performances.展开更多
利用花叶1号×紫茎1号杂交后代衍生的208个F2家系组建群体,构建含有95个SSR标记位点的遗传连锁图谱,该图谱包含11个连锁群,全长1457.47 c M,标记平均间距为15.34 c M。利用复合区间作图法,对株高、幼茎色、主茎色、生长习性、结荚...利用花叶1号×紫茎1号杂交后代衍生的208个F2家系组建群体,构建含有95个SSR标记位点的遗传连锁图谱,该图谱包含11个连锁群,全长1457.47 c M,标记平均间距为15.34 c M。利用复合区间作图法,对株高、幼茎色、主茎色、生长习性、结荚习性、复叶叶形和成熟叶色等农艺性状进行QTL分析,分别检测到与株高、幼茎色、主茎色、复叶叶形有关的QTL各1个,贡献率在8.49%~66.64%之间;与结荚习性有关的QTL3个,贡献率在60.32%~80.36%之间;与成熟叶色有关QTL 4个,贡献率在69.06%~87.35%之间;与生长习性有关的QTL数量最多,共26个,贡献率在58.32%~99.51%之间。上述QTL主要分布在LG1、LG2、LG4、LG8和LG10连锁群,其中LG1最少,仅检测到生长习性的1个QTL,LG4最多,包含了幼茎色、主茎色、结荚习性、生长习性、复叶叶形、成熟期叶色6个农艺性状的15个QTL;这些QTL既可以应用于绿豆育种的分子标记辅助选择,也对深入研究这些性状的遗传奠定了基础。展开更多
文摘本文通过引进13个紫花苜蓿品种,以巨能7为对照,在宁夏引黄灌区种植后进行了三年的比较试验,旨在研究半秋眠级紫花苜蓿在本地的生长、产量及营养品质表现,以期获得适宜当地种植的优良苜蓿品种。结果表明,秋眠级在4.9~5.2之间的苜蓿品种劲能5020、SW5909、WL366HQ品种以及秋眠级为6级的探戈品种,其生长性状、产量及营养品质优于其他品种,显著高于对照巨能7,综合当地气候特点及各品种三年的生长表现,苜蓿品种劲能5020、SW5909、WL366HQ、探戈表现最好,适宜作为宁夏引黄灌区推广的首选品种。This paper, by introducing 13 varieties of alfalfa (Medicago sativa L.) which were done a three-year experiment in Yellow River irrigation Ningxia district and were compared to the variety whose name is Power VII, aims to study on performances about their growth, production and nutritional qualities of different varieties of Medicago sativa with different FDR, and expects to gain fine varieties that fit local conditions. The results shows that varieties, whose names are Power 5020, SW5909, and WL366HQ with FDR between 4.9 and 5.2, and the variety whose name is Tango with FDR 6, are significantly higher than Power VII and are superior to others in performances about their growth, production and nutritional qualities. Therefore, local climate and there-year performances considered among all varieties, the varieties whose names are Power 5020, SW5909, WL366HQ and Tango are the pre-eminent varieties of Medicago sativa in Yellow River irrigation Ningxia district due to their excellent performances.
文摘利用花叶1号×紫茎1号杂交后代衍生的208个F2家系组建群体,构建含有95个SSR标记位点的遗传连锁图谱,该图谱包含11个连锁群,全长1457.47 c M,标记平均间距为15.34 c M。利用复合区间作图法,对株高、幼茎色、主茎色、生长习性、结荚习性、复叶叶形和成熟叶色等农艺性状进行QTL分析,分别检测到与株高、幼茎色、主茎色、复叶叶形有关的QTL各1个,贡献率在8.49%~66.64%之间;与结荚习性有关的QTL3个,贡献率在60.32%~80.36%之间;与成熟叶色有关QTL 4个,贡献率在69.06%~87.35%之间;与生长习性有关的QTL数量最多,共26个,贡献率在58.32%~99.51%之间。上述QTL主要分布在LG1、LG2、LG4、LG8和LG10连锁群,其中LG1最少,仅检测到生长习性的1个QTL,LG4最多,包含了幼茎色、主茎色、结荚习性、生长习性、复叶叶形、成熟期叶色6个农艺性状的15个QTL;这些QTL既可以应用于绿豆育种的分子标记辅助选择,也对深入研究这些性状的遗传奠定了基础。
