[2024年]幼穗分化 spike differentiation英语短句 例句大全

幼穗分化,spike differentiation

1)spike differentiation幼穗分化

1.Preliminary study on the characteristic of youngspike differentiation of wheat progenies with oat (Avena Sativa L.) exogenous DNA;导入燕麦DNA的小麦变异后代幼穗分化特性的初步研究

2.Observation ofspike differentiation and flowering characteristics in Kentucky bluegrass草地早熟禾幼穗分化过程及开花习性的观察

3.) with different vernalization development characteristics were used to investigate the effects of accumulated temperature before wintering onspike differentiation by vernalization treatments and sowing dates experiment,and the effects were expressed by thermal time.以3个春性、半冬性和冬性小麦品种为材料,采用分期播种和春化处理,以热时间为尺度,研究了冬前积温对不同春化发育特性小麦品种幼穗分化进程及主要穗分化期累积GDD(生长度日,growingdegree days)的影响。

英文短句/例句

1.Study on the young ear differentiation character and the technology of sprouting for ratooning rice再生稻幼穗分化特性及发苗技术研究

2.STUDIES ON YOUNG EAR DIFFERENTIATION AND MORPHOLOGICAL CHARACTERISTICS OF.SPRING BEER BARLEY春性啤酒大麦幼穗分化与形态特征的研究

3.THE INITIAL STUDY ON THE RELATIONSHIP BETWEEN THE SHAPE OF APPEARANCE AND INNER YOUNG EAR DIFFERENTIATION稻株外观形态与内部幼穗分化关系研究

4.STUDY ON ENHANCING MUTAGENIC EFFICACY BY IRRADIATING RICE PLANT BEFORE EAR DIFFERENTIATION水稻幼穗分化前照射植株提高诱变效果的研究

5.Effects of Sowing Time on Young Panicle Differentiation Process in Wheat Varieties of Different Ecotypes播期对不同生态型小麦品种幼穗分化的影响

6.Observation of spike differentiation and flowering characteristics in Kentucky bluegrass草地早熟禾幼穗分化过程及开花习性的观察

7.Genotypic Diffrerences on Effect of Vernalization Treatment on Growing Period and Spike Differentiation in Wheat春化处理对小麦生育期及幼穗分化效应的基因型差异

8.Effect of Area and Sowing Date on Young Panicle Development and Fertility of Photo-Thermo-Sensitive Male Sterile Wheat;异地分期播种对光温敏雄性不育小麦幼穗分化和育性影响的研究

9.A Study on Mathematical Model of Effects of Applying Multipurpose-Zole in Young Panicle Differentiation Stage For Hynrid Seed Reproduction关于杂稻制种幼穗分化期多效唑施用效果的数学模型研究

10.Influence of Accumulated Temperature between Sowing and Wintering on the Spike Differentiation and Growth and Photosynthesis of Two Kinds of Wheat Varieties;冬前积温对两类小麦幼穗分化、群体发育和光合性能的影响

11.Effect of Drought Stress during Panicle Differentiation Stage on the Grain Size and GS3 Gene Expression in Rice幼穗分化期干旱胁迫对水稻谷粒大小和GS3基因表达的影响

12.Studies on Spike Differentiation and Regulation of Seed Production in Tall Fescue and Kentucky Bluegrass高羊茅和草地早熟禾幼穗分化和种子产量形成的调控研究

13.Effects of Plant Density on Spike Differentiation and C/N Metabolism of Lankao Aizao 8种植密度对兰考矮早八幼穗分化和碳氮代谢的影响

14.The methane emission peak of early rice appeared in young panicle differentiation stage of rice.早稻甲烷排放峰值出现在水稻幼穗分化期，晚稻种稻期间甲烷排放通量在水稻分蘖盛期最大。

15.Change of Sugar Content and Invertase Activity in the Leaves and Young Ears of Wheat During Differentiation Period小麦穗分化期间叶片和幼穗含糖量及转化酶活力的变化

pensation of Rewatering after Water Stress at Young Panicle Formation Stage and Booting Stage in Rice水稻幼穗形成期和孕穗期水分胁迫复水后的补偿效应研究

17.The Preliminary Analysis of the Proteomic Map of the Rice Spikelet Separated by 2D-PAGE;水稻（oryza sativa）幼穗减数分裂期蛋白质组的初步分析

18.In Situ Hybridization Analysis of Two Rice OsRhoGDIs Genes in Young Panicle2种水稻OsRhoGDIs基因在幼穗组织中的原位杂交分析

相关短句/例句

young spike differentiation幼穗分化

1.This paper deals with the relation between theyoung spike differentiation of dif-ferent ecotypes of wheat at different sowing date and the effect of temperature.研究了不同生态型小麦在春季分期播种条件下的幼穗分化过程与温度效应的关系。

2.The studies onyoung spike differentiation of wheat were summarized.对小麦幼穗分化的研究进行了概述，指出小麦幼穗分化进程与品种的遗传特性及温、光等生态因子密切相关，并直接影响着产量因素的构成及最终产量形成，小麦幼穗分化的研究对小麦育种及生产实践具有重要指导意义。

3.Six different ecotype varieties of common wheat and F 1 derived from 6×6 complete diallel crossing system were selected for the research on theyoung spike differentiation characteristics.选用６ 个不同生态类型小麦品种，采用完全双列杂交法，对亲本及杂种Ｆ１ 的幼穗分化特点进行比较研究。

3)young ear differentiation幼穗分化

1.Study on theyoung ear differentiation character and the technology of sprouting for ratooning rice;再生稻幼穗分化特性及发苗技术研究

2.The relation between growth period、young ear differentiation and seeds production of L.对多花黑麦草在南京分期播种条件下生育进程和幼穗分化的变化及其与种子生产性能的关系进行了研究。

4)ear primordial stage幼穗分化期

1.The loss of the yield of the r ice irrigated with polluted water at tillering stage is greater than that atear primordial stage.生育前期(分蘖期)受污染的产量损失大于生育后期(幼穗分化期)受污染的产量损失。

5)young spike differentation and developmental幼穗分化发育

6)Apical bud of rhizome幼穗分化时间

延伸阅读

穗分化观测穗分化观测observation of ear-differentiationsuifenhua guanee穗分化观MlJ(observation of ear一differ-entiation)对禾本科作物幼穗发育进程中各阶段的观测。穗分化的开始标志着作物由营养生长进入生殖生长阶段。穗分化期是决定每穗粒数和最终产量的关键时期之一，此时对气象条件反应敏感。掌握穗分化进程，便于生产上及时采取技术措施，促进穗大粒多;在杂交制种上可用作父母本花期相遇预测时参考;在农业气象研究与服务中用于鉴定作物的农业气象条件和气候生态适应性。观测穗分化有目测、器测和推断三种方法。①目测法即剥检法。人工剥去裹在幼穗外的叶片，使完好的幼穗完全外露，用肉眼鉴别幼穗的发育阶段。此法简单易行，但因幼穗分化之初肉眼不易分辨，所以只适用于分化后期观察判断。②器测法即镜检法。借助于放大镜、解剖镜或显微镜观察裸露的幼穗的发育状态，从而判别其发育阶段。此法可详细观察或辨认幼穗的发育状态，准确可靠，尤其是花药发育的观察必须使用解剖镜或显微镜。③推断法即间测法。通过对植株外部形态或幼穗的外形、长度的观察或测量来间接判断幼穗分化的进程。此类方法很多，如叶龄指数法、叶龄余数法、穗长法和抽穗期倒推法等等。在没有仪器条件或要求较粗略的情况下，此法便于应用。但是不同作物与品种的植株外部形态或幼穗外形与幼穗发育进程的定量关系，必须通过大量的观察与测定后，才能确定。下表说明用叶龄指数法观测水稻幼穗分化各阶段的指标。水稻叶龄指数与幼穗发育阶段的关系叶龄指数序78一7981一8383一8890一9295一979899 100 幼称发育阶段第一苞叶原基分化期第一次枝梗原基分化期第二次枝梗原基分化期雌雄蕊形成期花粉母细胞形成期花粉母细胞减数分裂二分体期花粉母细胞减数分裂四分体期花粉成熟期(大华杰)