查询词典 root system

This artical summarized the research progress on hydrotropism of plant root system internationally from three aspects such as,how to induce hydrotropism by roots, root cap is the site of apperceiving humidity gradient,and the research on hydrotropism at the molecular level.

主要从根部如何诱导向水性、根冠是感知度梯度部位及在分子水平对向水性研究3个方面，总结了国际上植物根系向水性研究的进展。

Good root system are associated with crop drought avoidance. To investigate the genetic factors of adaptive and constitutive root morphological traits under different water conditions, a recombinant inbreed line population derived from a cross between a lowland rice variety IR1552 and an upland rice variety Azucena with 249 molecular markers was used in cylindrical pot experiments.

为了研究不同水分条件下组成型根系性状和适应性根系性状的遗传机制，本研究利用由IR1552／Azucena发展的重组自交系群体分析不同供水条件下水稻幼苗根长及根系其它性状的QTLs，同时对前人发表的具有同一亲本Azucena的遗传群体定位的根系性状相关QTLs进行比较分析。

Root system and plant growth responds to enlargement of population isochronous, all of them reduced with enlargement of population, root reduced especially.

玉米根系和与地上部的生长发育对群体扩大的反应具有同步的，二者均随群体的增扩大而消弱，以根系的消弱最为明显，且生育后期这种抑制现象越严重。

The effect of nitrogenous fertilizer on root system of naked oat in semiarid region was studied with root bags in field.

通过田间根袋实验研究了氮肥对旱地莜麦根系生长的影响。

The percentage of root biomass allocated to cluster roots increased in the soil layer supplemented with P in a split-root system.

在分根系统中，白羽扇豆的排根占根系干重的比例在局部供磷的土层中大量增加。

Even if you root the new growth, the new plant will probably have a weak root system.

即使您的根目录中新的增长，新的工厂将可能有弱的根系。

The result indicated that, This variety resistance is strong, The sowing time meets arid long clearly does not have the rain the weather, The soil field capacity is 43.5%(normal soil field capacity 60%), the rain water is insufficient, Rate of seedlings emergence above 85%, Basically achieves seedling is much longer and stronger; Jointing later period trumpet-shaped object stage, Meets the continuous and incessant rains little clear climate, Suffers the water logging disaster, Soil field capacity reaches above 85%, Partial is low-lying place is flooded, But the corn growth is normal, Ye Sachem is green, The root system is developed, Has not discovered the rotten root phenomenon; Is pulling out, the spinning, the pollination stage male, Bitter experience hot summer crop damage and storm disaster, The corn normally pulls out the male spinning pollination to busload.

结果表明：该品种抗逆性较强，播种期遇干旱久晴无雨的天气，土壤田间持水量为43.5%（正常土壤田间持水量60%）、雨水不足，出苗率在85%以上，基本达到苗齐、苗壮；拔节后期喇叭口阶段，遇到久雨少晴气候，遭受水涝灾害，土壤田间持水量达85%以上，部分低洼处被水淹，而玉米生长正常，叶色深绿，根系发达，未发现烂根现象；在抽雄、吐丝、授粉阶段，遭遇伏旱及暴风雨灾害，玉米正常抽雄吐丝授粉结实，产量未造成较大影响，基本上达到常年稳产，每公项达到8400kg以上。

This indicated that arrowleaf saltbush was able to change the ultrafiltration characteristics of its root system and reduce radial reflection coefficient of the root, thus lowering the risk of higher xylem tension leading to xylem cavitation and able to reduce salt absorption to avoid damage of salt over-accumulation to the plant.

说明三角叶滨藜在盐胁迫下一方面通过改变根系的超滤特性，降低根系径向反射系数来防止木质部拉力过大导致的木质部空化的危险，另一方面通过减少对盐分的吸收来避免盐分过多积累对植株的伤害。

So the present study was taken to compare the differences in the mechanisms of dissipating excess light energy in cucurbit crops and to study the differences in both the ROS metabolism in root system and the photosynthesis among six cucurbit crops with different temperature tolerance growing at different root-temperatures. The main results are as follows: 1、The species specific response of three cucurbit crops with different heat-tolerance: warm-adapted cucumber, heat-tolerant sponge gourd and heat-sensitive figleaf gourd to diurnal changes in air temperature and irradiance intensity were investigated in a typical summer sunny day. Three cucurbit species were compared using parameters in gas exchange, chlorophyll fluorenscence, photon allocation and photosynthetic electron flux.

因此，本试验以温度敏感性不同的瓜类作物为材料，研究了夏季自然条件下不同物种间在耗散过量光能的主要机制差异；探讨了它们对不同根际温度在根系活性氧代谢及地上部光合作用等方面的生理响应差异，所取得的主要结果如下： 1、在夏季晴天条件下，三种温度敏感性不同的瓜类作物：喜温的黄瓜，耐热性的丝瓜与热敏感的黑籽南瓜在气体交换、叶绿素荧光、光能分配及光合电子流对一天中温度与光照环境变化的响应上存在物种间差异和日变化特征。

Any Unix-Like operating system has a special user called root,superuser,or supervisor.

任何类Unix操作系统都有一个特别的用户叫做，root，超级用户或超级监管人。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。