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p tracer
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  32p示踪
     The root activity, phosphorus distribution and plumpness of two line intersubspecific hybrid rice were studied with the aid of 32 P tracer technique.
     应用放射性32P示踪技术对两系亚种间杂交稻根系活力、磷素分配与籽粒充实度进行了研究。
短句来源
     The relationship of growth and development between above ground organs and roots of winter wheat, Lumai 14, was studied using 32 P tracer. The results showed that before the spike formation, dry matter accumulation in roots, stems and leaves were synchronous, and after that they were asynchronous.
     利用32P示踪技术,研究了冬小麦地上部生长发育与根系的相关性,结果表明:孕穗前,根、茎、叶干重的累积是同步的,孕穗后为异步。
短句来源
     The dynamics of absmption 32P and Vitalify of wheat roof wys fern were studied by using 32P tracer techniquein heading and grain filling stages.
     利用32P示踪技术研究了湖北省小麦新品种(系)在抽穗期、灌浆期吸收32P的动态及根系活力。
短句来源
     Using 32 P tracer technology,this paper studies the dynamic variation of phosphorus in different phosphorus levels of Ccrocus sativus L. Plants.
     应用 3 2 P示踪研究了不同磷水平番红花植株中磷的动态变化 .
短句来源
     This article describes a study on the law that phosphorous in sewage acts in different soil using radiation 32 P tracer technology on soil pillar artificially simulated and summarily calculates the experimental date. The result is that red and purple soil have strong ability to remove the phosphorous in sewage,but the phosphorous obviously shows different action in different soil.
     应用放射性32 P示踪技术 ,在人工模拟土柱装置上 ,对城市污水中的磷素在不同土壤内的行为规律进行研究 ,并对实验数据进行了归一化的计算处理 ,结果表明红壤和紫色土对城市污水中的磷素都有较强的去除能力 ,但磷素在不同土壤中的行为有明显差异。
短句来源
  ~(32)p示踪
     Study on the Effect of Humic Acid on Absorption and Transportation of Phosphate in Wheat By Using 32P Tracer Method
     用~(32)P示踪法研究腐植酸对小麦吸收及转移磷的增效作用
短句来源
  “32 p tracer”译为未确定词的双语例句
     THE RELATIONSHIP BETWEEN GROWTH AND DEVELOPMENT OF ABOVE GROUND ORGANS WITH ROOTS OF WINTER WHEAT USING 32 P TRACER
     冬小麦生长发育与根系关系的~(32)P示踪研究
短句来源
     4.32P tracer experiment indicated that 32P was concentrated in seeds, both their radioactivity and specific activity are highest, about 1.5 ~ 5 times higher than that of vegetative organs in different cultivars.
     4.水稻植株地上部分各器官中~(32)P主要集中在穗部谷粒中,其放射性比活度和总活度均为最高。 籽粒放射性比活度约为营养器官的1.5~5倍。
短句来源
     Field tests and pot cultivation experiments were undertaken using a pioneer cultivar of "super hybrid rice", Peiai 64s/E32, and other cultivars as experimental materials. Systematic study was done on the phenomenon of unsynchronized grain filling in rice using 32P tracer technique, microstructure and ultrastructure observation, Endogenous hormone detection and exogenous hormone treatment, etc. The main results are as follows:
     本课题以具有明显的异步灌浆特性的超级杂交稻先锋组合培矮64S/E32等为主要实验材料,通过田间种植和盆栽实验,利用同位素示踪、电镜观察、内源激素检测和外源激素处理等方法,对强弱势籽粒异步灌浆现象及其生理机制进行了系统研究,获得的主要实验结果如下:
短句来源
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  p tracer
Using a 32P tracer, mosses removed from plots receiving PK in combination with NH4 maintained their affinity for increased phosphorus uptake.
      
A 32P tracer placed at a depth of 12.5, 37.5, 62.5 or 87.5 cm was employed to determine root system dynamics by sampling crop leaves at 0, 15, 30 and 45 cm lateral distance.
      


Translocation and accumulation of organic substance in Xanthoceras sorbifolia Bunge,an oil tree species widely distributed in North China,have been studied by ring- ing method and ~(32)P tracer technique.It was found that the organic nutrients for the growth of new shoots,new leaves,flowers and fruitlets all came from the reserves in branches,trunk and root system in the previous year.Foods synthesized in the newly formed mature leaves were translocated partly to fruits and apical bud of the same branch...

Translocation and accumulation of organic substance in Xanthoceras sorbifolia Bunge,an oil tree species widely distributed in North China,have been studied by ring- ing method and ~(32)P tracer technique.It was found that the organic nutrients for the growth of new shoots,new leaves,flowers and fruitlets all came from the reserves in branches,trunk and root system in the previous year.Foods synthesized in the newly formed mature leaves were translocated partly to fruits and apical bud of the same branch and partly to other branch,trunk and root system.Translocation of foods synthesized in the leaves to the growing fruits stopped about half a month before fruit maturation, they were translocat to other branches,trunk,root system and buds instead.This was apparently necessary for the growth and differentiation of flowers and fruits next year.

用环割法和~(32)P 标记法研究文冠果年生长周期内有机营养物质的运输与累积,结果表明:开花、抽梢放叶及幼果生长所需营养物质主要来自头一年在枝、干及根系的贮存物质;新梢形成顶芽以后,叶片所制造的营养物质除满足本枝果穗需要外,有一部分还向枝、干、根系及顶芽运输;果实成熟前半月左右起,营养物质不再向果穗运输,而是运向枝、干、根系及芽,以满足花芽分化及保证次年开花、抽梢放叶及幼果生长发育的需要。

The study of Trichogramma in controlling corn borer in Jiangsu Province was started in 1959. Our suvey revealed that the eggs of corn borer in China were parasitized by Trichogramma ostriniae, T. dendrlolimi, T. confusum, T. japonicus, T. clo-sterae, T. evenescens, T. leucaniae and T. sp. T. ostriniae distibuted widely in the country and it was estimated that 98% of the Trichogramma populations could be identified as T. ostriniae which might play an important role to suppress corn borer populations in the fields.The...

The study of Trichogramma in controlling corn borer in Jiangsu Province was started in 1959. Our suvey revealed that the eggs of corn borer in China were parasitized by Trichogramma ostriniae, T. dendrlolimi, T. confusum, T. japonicus, T. clo-sterae, T. evenescens, T. leucaniae and T. sp. T. ostriniae distibuted widely in the country and it was estimated that 98% of the Trichogramma populations could be identified as T. ostriniae which might play an important role to suppress corn borer populations in the fields.The adults of T. ostriniae emerging from overwintering larvae or prepupae appear in the first decade of April. There are 16 to 17 generations in each year and hibernation occurred in the host eggs in early November. At 25℃ the generation was completed in 11 days.The dispersal distance of the adult wasps as determined with 32P tracer method was shown to be within 20 meters from the releasing point two days later at 23℃ and with wind velocity varied from 5.5 to 7.9m/s; and 66.7% of the wasps was found within 10 meters. On the third day after releasing 11.1% of the wasps was found at a distance of 50 meters. The activity of the wasps was usually affected by temperature and humidity.This species used to parasitize the eggs of cutworms Agrotis spp. and eould also parasitize Attacus cynthia ricini, Dendrolimus spp. and Corcyra cephalonica. For propagation the fresh eggs of Dendrolimus stored in the refrigerator at 0°-℃ up to 20 days could still be used, but the longer the time of storage the less the effectiveness. 26℃ was the optimal temperature for propagation.Field tests for evaluating the effectiveness of T. ostriniae in controlling corn borers on spring corn were conducted in 1964-1965. The wasps were released for 3 to 4 times for the corn crop and a total of 8000 to 15000 wasps were used per mou. The rate of parasitism ranged from 64.7% to 87.0% of the treated areas as compared with 24.5% to 35.2% by the endemic population of the wasp in the check plot. The density of borer population in the treated areas was found to be 12 to 23.5 larvae per hundred corn plants while 61 to 73.5 larvae were found in the check plots. But comparable effectiveness was not obtained in the summer corn crop for controlling the second and third generations of the corn borer, porbably due to the higher temperature and rain-strorms which might adversely affect the activity of the wasps in the field.

玉米螟是玉米、杂粮、棉花等作物的大害虫。赤眼蜂是抑制玉米螟危害的重要因素之一。经调查发现我国寄生于玉米螟卵的赤眼蜂有8种,其中玉米螟赤眼蜂Trichogramma ostrininae Paag et Chert占总数的98%以上,分布亦广,是优势种。 我省释放人工繁殖的赤眼蜂防治第一代玉米螟的效果达80%左右,相当于施用滴滴涕颗粒剂;防治第二代玉米螟因受不良气候条件的影响,防治效果不稳定。

With soybean, Jilin 18, as an experimental crop,spraying field experiments were carried out during the years of 1980-1984 in the experimental station of Jilin Agricultural University. Results showed that after B9-spraying on the whole plant at the initial flowering stage, the vegetative growth was inhibited, the leave thickened and weighted and the content of chlorophyll increased.32p tracer experiment further proved the organic matter made in leaves were transported effectively to flowers and pods, the...

With soybean, Jilin 18, as an experimental crop,spraying field experiments were carried out during the years of 1980-1984 in the experimental station of Jilin Agricultural University. Results showed that after B9-spraying on the whole plant at the initial flowering stage, the vegetative growth was inhibited, the leave thickened and weighted and the content of chlorophyll increased.32p tracer experiment further proved the organic matter made in leaves were transported effectively to flowers and pods, the podshedding was decreased and the protein content in the seed and seed yeild were also increased. *2, 2 - dimcthylhydrazide,(CH3) 2-N-NH-CO (CH2) 2-COOH

由于吉林省大豆落花落荚严重,产量较低。为促进大豆产量的提高,笔者从1980年开始连续4年,在大豆的初花期喷施B_(?)。结果表明:大豆株高普遍降低,叶片厚度增加,叶绿素含量增多,促进了营养物质往生殖器官运输。存荚数增多,产量提高,蛋白质含量也有所增加。

 
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