查询词典 Medicago

Medicago truncatula and Medicago scutellata wew prematurity type, the developmental stage was 95 days; Medicago polymorpha, Medicago littoralis and Medicago lupilina were serotinous type, developmental stage was 110,140 and 110 respectively.

生育周期在95～140天，从生育天数来看，蒺藜苜蓿、蜗牛苜蓿属早熟型，生育期为95天。晚熟型的是刺球苜蓿、海滨苜蓿、天蓝苜蓿，生育期分别为110、140和110天。

Agrobacterium tumefaciens-mediated transformation system of Medicago truncatula cotyledonary-node explants Abstract The three-day-old seedlings of Medicago truncatula, which geminated in medium containing up to 5mg/L 6-BA, were used to prepare the cotyledonary-node explants which contained one cotyledon and 1-2mm of split hypocotyl. High-efficiency regeneration system of Medicago truncarula was developed by axillary shoot organogenesis of cotyledonary-node explants.

论文第二部分 Medicago truncatula遗传转化和植株再生体系的研究第一章根癌农杆菌介导的Medicago truncatula子叶节外植体转化系统的研究本文利用在高达5mg／L 6-BA的萌发培养基上生长3天的Medicago truncatula幼苗，制备获得由一片子叶和1-2mm切分的胚轴组成的子叶节外植体。

And Medicago falcata is nearer. But the three species have wide genetic distance with Medicago lupulina and Medico go sphaerocarpos cv.'Orion'.

与黄花苜蓿的相似性次之，而这3个种与天蓝苜蓿和一年生苜蓿的相似性较小。

Germination experiment was conducted to study the effect of salt stress on germination and seedling growth of Medicago falcata, with two cultivars of Medicago sativa (cw400 and Gongnong2) as control.

实验研究了盐对黄花苜蓿种子发芽和幼苗生长的影响，以紫花苜蓿cw400和紫花苜蓿公农2号为对照。

Response of physiology indices of Medicago falcata L. to salt stress is different. SOD activity, peroxidase isozyme and chlorophyll content cannot reflect the difference of the ability to salt tolerance of the materials. These indices are not fitting for studying the ability of salt tolerance of Medicago falcata L..

黄花苜蓿各生理指标对盐胁迫的响应存在差异，SOD活性、过氧化物同工酶和叶绿素含量不能反映黄花苜蓿材料间耐盐能力的差异，不宜采用这几个指标研究分析黄花苜蓿材料间的耐盐能力。

The results were as follows: 1. Response of physiology indices of Medicago falcata L. to drought stress is different. There are not obvious correlation among indices and ability to drought resistance. The indices include critical water saturation deficiency, free and bound water content, tissue water, peroxidase isozyme, free proline content, chlorophyll a, chlorophyll b, total chlorophyll and chlorophyll. These indices are not fitting for assessing ability of drought resistance of Medicago falcata L..

黄花苜蓿各生理指标对干旱胁迫的响应不同，临界饱和亏、自由水含量、束缚水含量、组织水含量、过氧化物同工酶、游离脯氨酸含量、叶绿素a、叶绿素b、叶绿素总量以及叶绿素与黄花苜蓿抗旱能力之间不存在明显的相关性，不适宜采用这些指标来评价或判别黄花苜蓿材料间抗旱能力的强弱。

In this paper, male sterile line of alfalfa was used to be improved with crossing, because the seed production of crossing is low. The affecting factors of seed production of male sterile line of alfalfa and its crossing progenies that are crossed with male sterile lines of alfalfa and good alfalfa that male is fertile were analyzed. The characteristics of female reproductive organs of male sterile line and its crossing progenies are analyzed in cell morphology. The genetic difference of male sterile line and its crossing progenies are analyzed in enzyme protein. The results showed: 1、Rate of podding of nature crossing and fecundity of artificial crossing of the male sterile plant BC1-2 that is the crossing progency of male sterile line of alfalfa and Medicago varia Martin.cv.'Caoyuan No.1'is higher than male sterile lines. Rate of podding of nature crossing and fecundity of artificial crossing of the male sterile plants BC1-19、BC1-21、BC1-22、BC1-23 that are the crossing progencies of male sterile line of alfalfa and Medicago sativa L.cv.

针对苜蓿雄性不育系杂交制种产量低的问题，采用杂交法对苜蓿雄性不育系进行改良，以原苜蓿雄性不育系为轮回亲本与雄性可育优良苜蓿品种杂交，分析苜蓿雄性不育系及其杂交后代种子产量的影响因素，从细胞形态学方面观察和分析杂交后代及原不育系在雌性生殖器官上的变异特点，从酶蛋白水平对杂交后代及原不育系的遗传差异进行分析，初步研究结果如下： 1、苜蓿雄性不育系与草原一号苜蓿的杂交后代不育株BC1-2，以及苜蓿雄性不育系与X′(苜蓿雄性不育系与新疆大叶苜蓿的杂种F1代)的杂交后代不育株BC1-19、BC1-21、BC1-22、BC1-23的天然杂交结荚率和人工杂交制种的结荚率和百粒重均高于原苜蓿雄性不育系。

Seeds of three genotypes Medicago sative L. were irradiated by 0, 1000, 1500 and 2000Gy 60Co γ-rays, comparison was made among different genotypes at same dosage, and the other is the same genotype at different dosage. The effects of irradiation on root tip cell in Medicago sative L. were studied.

分别利用0、1000、1500和2000Gy 60Co γ射线处理3个品种的紫花苜蓿种子，对同一剂量不同品种或同一品种不同剂量间辐照情况相比较，研究苜蓿根尖细胞的生物学效应。

Alfalfa (Medicago sativa L.) belongs to the typical allogamy, and the sampling strategies are closely related to its molecular genetic diversity analysis.

紫花苜蓿为异花授粉植物，其DNA多态性研究的取样策略与遗传多样性分析直接相关。

The aim was to study the Absorption characteristics of Medicago sativa and Brassica juncea on Pb in soil.

［目的］研究紫花苜蓿和印度芥菜对土壤中铅的吸收特性。

It was just a normal day of school

那只是上学的普通一天

Which is a very good reference in this issue.

这是一个在这个问题上很好的参考。