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The results indicated that the lignified seed shell had a negative impact on water permeability of seeds,but it was not the main reason for seed dormancy.

结果表明：(1)美国桂花种子木质化种壳对种子的吸水透性有一定的阻碍作用，但不是引起种子休眠的主要原因；(2)美国桂花种子的胚没有休眠，离体胚在光照培养7 d开始萌动；(3)胚乳被严密包裹的机械作用使胚无法获得萌发所必需的水分和氧气，这可能是导致种子休眠的最主要的原因。

When a seeding client enters "super-seed mode", it will not act as a standard seed, but masquerades as a normal client with no data.

当做种者使用&超级种子模式&时，它不会作为标准种子，而是伪装成一个没有数据的普通客户端。

In order to explain clearly the variation status of embryo from tetrapoid Robinia pseudoacacia and fully use the variation resource initiated in the sexual reproduction of TRP in the further improvement of TRP, the classification and vitalities of seed embryos from tetraploid Robinia pseudoacacia were studied. The main results are as follow. According to the cotyledon number, color and plumpness, the seed embryos of TRP could be divided into 5 types: YVT (yellow, very replete,2 cotyledons), YMT( yellow, more replete,3 cotyledons ), YRF ( yellow, replete,4 cotyledons ), GNT ( green, no-replete, 2 cotyledons ) and WNT ( white, no-replete, 2 cotyledons ).

为了阐明刺槐同源四倍体种子胚变异状况及充分利用刺槐同源四倍体有性过程创造的变异资源对四倍体刺槐进行遗传改良，研究了刺槐同源四倍体种子胚类型及其生活力特征，主要结论如下：刺槐同源四倍体种子胚按照子叶数量、颜色及饱满程度，可以划分出5个类型：黄二、黄三、黄四、绿二及白二，所有类型种子胚混合平均单胚重量接近二倍体的1/2。

Effects of seed pelleting agent WHW-23 on seedling growth and some enzyme activities of direct-seeded rice were studied by means of experiment of field direct-seeding with coated rice seed.

为了给水稻种衣剂的进一步推广和发展提供理论依据，用自行研制的丸化型种衣剂（WHW-23）包衣水稻种子，通过田间直播试验，研究了丸化型水稻种衣剂对水稻秧苗生长及酶活性的影响。

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。

The results showed that the best ratio of male parent to female parent was 1:3, and 210 kg/hm2 N fertilization was better. It indicated that hybrid seeds production in two crop seasons, especially the second crop season based on the utilization of ratoons of flue-cured tobacco which regenerated after hybrid seed was harvested in the first crop season, was beneficial to higher seed yield, lower cost, and less laborers employed as well.

结果表明，烟草杂交制种父母本比例以1：3较好；在中等肥力田块制种头季以施纯氮195~210kg/hm2较理想；利用头季杂交种收获后萌生的腋芽进行杂种二季制种在提高杂种种子产量，降低劳动量和生产成本等方面具有较理想的效果。

He sows the seed in your heart, but at the core of your being you are also the seed itself.

他种母猪在心，但是你的核心你也正在种子本身。

Objective To review the changes of the clinical and the image in15patients with Pancreatic Carcinoma who implantation of 125 I seeds,and analyzed the effectiveness of 125 I.Methods From Oct.2002to Oct2003,with the system of MICK200-TPV radiotive seeds implantation,The 125 I seeds were implanted into15patients with Pancreatic Carcinoma.The number of seed were18～45.The activity of per seed was0.45～0.7mCi.The peˉripheral radiation total dose was60～90Gy7patients were superadded radiotherapy（the doses was30-35Gy）.After the seeds implantation.

目的 报告15例胰腺癌 125 I粒子植入治疗后的临床及影像学变化，讨论 125 I粒子对胰腺癌的治疗作用方法自2002年10月～2003年10月，利用MICK200-TPV放射性粒子植入系统，对15例胰腺癌病人植入 125 I粒子，植入粒子18～45颗，每颗粒子活度0.45～0.7mCi，病灶周边剂量60～90Gy.5例植入粒子后补充外放疗30～35Gy。

Methods From Oct.2002to Oct2003,with the system of MICK200-TPV radiotive seeds implantation,The 125 I seeds were implanted into15patients with Pancreatic Carcinoma.The number of seed were18～45.The activity of per seed was0.45～0.7mCi.The peˉripheral radiation total dose was60～90Gy7patients were superadded radiotherapy（the doses was30-35Gy）.

自2002年10月～2003年10月，利用MICK200-TPV放射性粒子植入系统，对15例胰腺癌病人植入 125 I粒子，植入粒子18～45颗，每颗粒子活度0.45～0.7mCi，病灶周边剂量60～90Gy.5例植入粒子后补充外放疗30～35Gy。

Finally indicated, the best seed raise conditions of T11-1 and O7-7 is: 100mL seed culture mudium in 200 mL triangle bottle ,16 hours in shake bed;It′s best component fermentation medium is: peptone 5.0,yeast extract 3.0, beef paste 2.0,xylose 60.0,K_2HPO_4 2.0,MnSO_4·4H_2O 0.04,MgSO_4·7H_2O 0.20,FeSO_4·7H_2O 0.05;The best fermentation condition is: 150mL fermentation medium in 250mL bottle,vaccinates 10 %, 48 hours in shake bed under 46℃;The output of L-lactic acid using T11-1 and O7-7 from corncob respectively were 31.30g/L and 30.88g/L,and the conversion rate respectively were 52.17% and 51.47%.

结果表明，T11-1和O7-7的最佳种子培养条件为：在200mL三角瓶中于盛装100mL种子培养基，摇床培养16h；其最佳发酵培养基组分为：蛋白胨5.0，酵母浸粉3.0，牛肉膏2.0，木糖60.0，MnSO_4·4H_2O 0.04，MgSO_4·7H_2O 0.2，FeSO_4·7H_2O 0.05，K_2HPO_4 2.0；最佳发酵条件为：250mL输液瓶装载150mL发酵培养基，接种10%，在46℃条件下摇床发酵48h；利用T11-1和O7-7进行玉米芯L-乳酸发酵，其L-乳酸产量分别为：31.30g/L和30.88g/L，转化率分别为52.17%和51.47%。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐