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rape plant
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  油菜
     The content of total sulfur in rape plant was 5.0820.18g kg~(-1) with the average 10.02g kg~(-1).
     油菜植株全S含量为5.08~20.18gkg-1,平均10.02gkg-1。
短句来源
     Ore powder with higher selenium could cause higher selnium content in rape plant, but lower selenium ore powder could also improve the selenium content of rape plant actively.
     ②高含硒量富硒矿粉的效果优于低含硒量的矿粉,但施用含量为1494mg·kg-1矿粉的油菜植株含硒量仅比含量为104mg·kg-1矿粉高18.91%,这说明较低含量的矿粉同样具有应用价值;
短句来源
     On the basis of host plant reactions,serology and analyses of nucleotide sequence of 1554 bp cDNA in the virus RNA 3' end,a Tobamovirus isolate from an infected oilseed rape plant was identified and characterized as a strain of Oilseed rape mosaic virus (ORMV),namely Wh strain.
     依据病毒的寄主植物反应、血清学性质和 RNA 3′末端含 cp 和 mp 基因1554 bp cDNA 片段序列分析,明确一个侵染油菜的烟草花叶病毒属 Tobamovirus 病毒分离物是油菜花叶病毒(Oilseedrape mosaic virus,ORMV)的一个株系,定名为 Wh 株系。
短句来源
     STUDIES ON THE ABSORPTION AND UTILIZATION OF NITROGEN IN RAPE PLANT BY USING A STABLE ISOTOPE- ~(15)N
     应用稳定性同位素~(15)N研究油菜对氮素的吸收和利用
短句来源
     The Mn concentration and Mn/Fe ratio in the rape plant had a positive correlation with the soil EXC-Mn.
     油菜体内吸收的锰以及Mn/Fe比与土壤交换性锰呈正相关。
短句来源
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  油菜苗
     Seed treatment with soluble chitosan had no evident effect on the emergence of rape seed,but promoted rape plant growth and increased seed yield by 9. 13 % ~ 13. 59 %.
     用水溶性壳聚糖拌种(用量为0.5g或1.25g/kg种子)对油菜种子发芽和出苗均无明显影响,但可促进油菜苗生长,提高壮苗率,增加产量,增产幅度在9.13%~13.59%。
短句来源
  “rape plant”译为未确定词的双语例句
     Effect of SO_2-polluted rape plant on growth and reproduction of the turnip aphid,Lipaphis erysimi(Kaltenbach)
     Effect of SO_2-polluted rape plant on growth and reproduction of the turnip aphid,Lipaphis erysimi(Kaltenbach)
短句来源
     The symptom occurred evidently when K/N ratio in the leaf was less than 0.25. From the status of K-nutrition, K-deficiency of rape plant was determined by the amount of both the exchangeable-K and the slowly available-K in soil.
     缺钾症状的发生不仅与叶片含钾量有关,且与叶片含氮量有关,钾低氮高,K/N比<0.25时,一般都发生缺钾症、从土壤方面看,缺钾症既与交换!
短句来源
     The dynamic changes of soil pH, Eh, active manganese and their relationship were studied in three acid soils(brown-red soil, yellow-brown soil and red soil)by contrast with a calcareous alluvial soil collected from Hubei Province in pot experiment of rape plant.
     以灰潮土为对照研究了湖北省 3种有代表性的酸性土壤在盆栽条件下 ,不同酸化处理土壤pH、Eh与活性锰的动态变化关系。
短句来源
     GLUCOSINOLATE CONTENT OF THE RAPE PLANT AND ORGANS AT VARIOUS GROWING PERIODS AND ITS EARLY PREDICTION
     油菜不同生育期植株和器官芥子甙含量分析与早期预测
短句来源
     Studies on regulation mechanism of paclobutrazol to the growth of rape plant.
     多效唑调控油菜生长的作用机理
短句来源
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  rape plant
We applied isothiocyanates from rape plant material (1,480?μmol?m-2) to four large (0.6?m diameter, 1.0?m long) intact soil monoliths from a loamy and a sandy soil and conducted a leaching experiment under semi-field conditions.
      
We investigated if the isothiocyanates from rape plant material were leached through the soil to drain depth when a heavy rainstorm followed the biofumigation.
      
Up to 26 spontaneous hybrids per male sterile oilseed rape plant, and one per hoary mustard plant, were obtained in field experiments.
      
isolated from the rape plant Brassica napus were examined with gas chromatography (GC).
      
Damage to the oilseed rape plant (Brassica napus L.) by the cabbage stem flea beetle, Psylliodes chrysocephala L.
      
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The Sclerotinia disease of the rape plant is widely distributed in 19 provinces in China. It is more prevalent and destructive in the Yang-Tze Valley and the South-Eastern coastal provinces. These regions are characterized by the concurrence of the relatively cool temperature (around 15℃.), the abundant rainfall (month average exceeds 100 mm.), and the susceptible stage of the host plant (usually during the blooming period). Sclerotinia sclerotiorum has been found attacking 71 species of economic...

The Sclerotinia disease of the rape plant is widely distributed in 19 provinces in China. It is more prevalent and destructive in the Yang-Tze Valley and the South-Eastern coastal provinces. These regions are characterized by the concurrence of the relatively cool temperature (around 15℃.), the abundant rainfall (month average exceeds 100 mm.), and the susceptible stage of the host plant (usually during the blooming period). Sclerotinia sclerotiorum has been found attacking 71 species of economic plants of 19 families. Beside the rape plant, peanut, soybean, and sunflower, the majority of the hosts are vegetables and herbaceous ornamental plants. In the host range, there are 13 species not hitherto reported; however, there are also 5 species of familiar plants which have been listed as hosts in other countries are not affected in China. No definite period of dormancy appeared to be necessary for the production of apothecia, but the temperaure reguirement for the sclerotial germination was found very narrow. They germinated best in moderately cool temperature (around 15℃.) in moist sand., The sclerotia raising from single spore cultures germinated very slowly and meagrely, while those from the parent mass culture germinated rather quickly and abundantly, a phenomenon pointing to the facultative heterothallic nature of the fungus. The ascospores have been found to germinate under a wide range of conditions. They germinated quite well on dry slide under high relative humidity. It may thus be justified to assume that the ascospores can be carried in a viable condition to a considerable distance by wind. Precentages of their germination under a temperature range of 5—30℃. exceeded 50% in less than 24 hours, being highest at 5—10℃. The pH range for mycelial growth was found to be pH 3—9, with an optimum around pH 5—8. High relative humidity (over 85%) and a supply of pectinase from diseased tissues were necessary for its infection. Flower petals of the rape plant have been found most susceptible to attack by the ascospores, while sound leaves were resistant to attack unless they had been chilled. A sudden drop of temperature, poor drainage, and especially lodging of the rape plants during their blooming stage have been observed to be predisposing under natural conditions. Ordinary, there are two crops of apothecia in a year, one in the Autumn and the other in the next Spring, the second crop should be considered as the major one. A rotation of rice with the rape plant and a big scale control campaign in vast area will materially reduce the source of infection, and thereby decrease incidence of the disease. Since the infection is dependent chiefly upon the number of sclerotia that will persist in the soil and the production of apothecia in the blooming period, epedemics may be forecasted on the basis of weather conditions prevailing at various times of the year. The facts that abundant Summer rainfall promotes decay of the sclerotia, and abundant rainfall in the the Autumn increases their number, may be considered as criteria for long term forecasting. Abundant rainfall in the early Spring and cold wind during the blooming period which promotes the germination of the sclerotia, the infection of either the ascospores or the mycelium, and the lodging and susceptibility of the host, may be based for short term forecasting.

1.油菜菌核病在我国的分布共有19省,而以长江流域及东南沿海各省为主。它的分布区域决定于較低的温度(15℃左右)、充沛的雨量(月平均超过100毫米)及寄主易感阶段(一般为花期)三者的密切配合。在秦岭以南的早春和深秋以及松花江流域的夏季,其配合是符合于这种情况的,因此发病較为普遍而严重。秦岭以北,包括华北与西北,上述三方面的配合基本上是不协調的,因此菌核病很少发生。2.它在我国的寄主共有19科71种,除油菜、花生、大豆及向日葵等油料作物外,主要为害蔬菜及草本观赏植物,因此花园菜圃是此菌潛伏埸所之一。在我国所发现的寄主中,有13种是未經报导过的,但也有5种常見的寄主在我国尙未见其被害。3.Sclerotinia sclerotiorum的各个发育阶段对于外界条件的要求是不一致的。菌核不需要休眠,但它发芽的要求很严格,只有继續在低温高湿的土壤中约一月左右才能盛发。它从单子囊孢子菌系所产生的菌核发芽率很低,而且发芽很缓慢,说明此菌是一个较弱的(己廾)宗配合菌类。子囊孢子发芽的要求最宽,它有耐干耐寒的能力。在5—30℃之间,24小时内的发芽率都能超过50%,而在5℃或10℃的温度下发芽率最高,而且发芽最快。它在接近饱和...

1.油菜菌核病在我国的分布共有19省,而以长江流域及东南沿海各省为主。它的分布区域决定于較低的温度(15℃左右)、充沛的雨量(月平均超过100毫米)及寄主易感阶段(一般为花期)三者的密切配合。在秦岭以南的早春和深秋以及松花江流域的夏季,其配合是符合于这种情况的,因此发病較为普遍而严重。秦岭以北,包括华北与西北,上述三方面的配合基本上是不协調的,因此菌核病很少发生。2.它在我国的寄主共有19科71种,除油菜、花生、大豆及向日葵等油料作物外,主要为害蔬菜及草本观赏植物,因此花园菜圃是此菌潛伏埸所之一。在我国所发现的寄主中,有13种是未經报导过的,但也有5种常見的寄主在我国尙未见其被害。3.Sclerotinia sclerotiorum的各个发育阶段对于外界条件的要求是不一致的。菌核不需要休眠,但它发芽的要求很严格,只有继續在低温高湿的土壤中约一月左右才能盛发。它从单子囊孢子菌系所产生的菌核发芽率很低,而且发芽很缓慢,说明此菌是一个较弱的(己廾)宗配合菌类。子囊孢子发芽的要求最宽,它有耐干耐寒的能力。在5—30℃之间,24小时内的发芽率都能超过50%,而在5℃或10℃的温度下发芽率最高,而且发芽最快。它在接近饱和的相对湿度中,并不需要一层水膜也能发芽。因此,推论它有一定距离的气流传播可能性。菌絲的要求介于两者之间,它对酸硷的适应范围很广(pH3—9,最适为pH5—8)。它对温度的要求和对子囊孢子发芽的相同。其侵染及生长最主要的条件为高湿度(相对湿度高于85%)及足够的果胶酵素。4.油菜易感的阶段为花期。花冠最容易感染,衰老的叶片及受冻后的嫩叶也容易感病。通过这些桥梁,进而侵染莖稈。春季的寒流,后期的漬水和倒伏,造成发病的小气候;鼓励子囊孢子的发芽与侵入和菌絲的侵染与发展。因此,是此病猖獗的关键。5.子囊孢子是此病主要的而且是首次侵染源。菌核每年产生两次子囊盘,一次在深秋,是次要的;一次在早春,是主要的。菌核的潛伏埸所为:本田、种子间、花园、菜圃、打谷埸及堆肥中。水旱轮作可以消灭菌核;大面积联防可以减少侵染源。6.夏季的雨量丰富,使田间的菌核数下降;相反,深秋的雨量丰富,使菌核数增加;因此,前一年的夏季和秋季的雨量,可以用作长期测报的根据。本年早春的雨量丰富,促进菌核的发芽;花期的寒潮,后期田间渍水,植株倒伏,都使寄主易感,并鼓励子囊孢子的发芽侵入及菌絲的侵染与发展,是造成当年猖獗的主要原因,因此可以用为短期测报的依据。

The following results of the studies on some botanical problems in the seed production of rape were obtained by the authors in 1956-----1963 in'chengtu.1. The seeds of the different parts, of the rape plant, vary in quality. Usually. the seeds of the central and basal part of the apical inflorescence have the best quality. The seeds of the rape plants after pruning have better quality and give more yield than the control, 'Therefore the application of the seeds of apical inflorescences, especially...

The following results of the studies on some botanical problems in the seed production of rape were obtained by the authors in 1956-----1963 in'chengtu.1. The seeds of the different parts, of the rape plant, vary in quality. Usually. the seeds of the central and basal part of the apical inflorescence have the best quality. The seeds of the rape plants after pruning have better quality and give more yield than the control, 'Therefore the application of the seeds of apical inflorescences, especially those of the pruned plants for the seed production of rape is recommended.2. Under the climatic conditions of Chengtu, the opening of the flowers of the. rape plant is as follows. In the blpoming season of ijapef most flowers .begin to op'en in the evening, and become ierbs$ - shaped the next day befpre noon. At 'this., time ,tfye anthesis occurs. After 1-----2 days the petals become withered andsoon begin to drop. The pistil matures early in the bud stage, and is able to be bud pollinated, The stigma is more receptive to pollenin 1-----3 days after the opening 6f the flower. It becomes lessreceptive on the 4th day, and finally completely sterile after 6 days. The rape plant is cross-pollinated and entomophilous. but is also possible to be self-pollinated. The methods of isolating plot, isolating net and isolating bag ar.e introduced to the seed production of rape. 3. Some varieties of rape were examined and their differences in the external form and internal structure of seeds and seedlings were discussed. In the seed production of rape, when the determination of seeds is needed before sowing, it is possible to determine the above varieties by the morphological and anatomical studies of seeds and seedling.s.

我们对油菜良种凡育中的几个植物学问题进行了试验研究,得到了下列结果。1.油菜种子的异质性。油菜全株种子的品质,以主茎较优,分枝次之,再分枝较劣。主茎果序各部种子的品质,以中部和下部较优,上部较劣,各分枝种子的品质,以上部分枝和中部分枝较优,下部分枝较劣。其中以主茎果序中、下部种子种用品质最优。进行整枝留种试验的结果,经过整枝的植株,其茎叶显著增大,角果内籽粒数增加,千粒重增大,发芽率提高。用整枝留种的种子播种,其后代比对照出苗整齐,幼苗生长健旺,产量增加。在油菜良种凡育实践上,为了获得优良的油菜种子,在留种时,可应用主茎留种、整枝留种等方法。2.胜利油菜的传粉习性在成都地区条件下,胜利油菜的开花散粉过程,多数花朵系从傍晚开始活动。最初是花萼顶端裂开,现出柱头。其后花瓣伸出萼片之外。至次日上午,花瓣逐渐开放。约近中午花瓣展平成十字形。在十字形肘期,花药盛裂,散出花粉。约经1—2日后,花瓣复闭合成半开状。其后花瓣边缘萎缩,并逐渐脱落。胜利油菜的雌蕊发育较早。在花蕾时期雌蕊即已具有受粉能力,可以进行蕾期授粉。雌蕊受粉能力较强时期,是开花后的1—3天,约4天后下降,约6天后丧失受粉能力。胜利油菜的花在形态和生理上表现...

我们对油菜良种凡育中的几个植物学问题进行了试验研究,得到了下列结果。1.油菜种子的异质性。油菜全株种子的品质,以主茎较优,分枝次之,再分枝较劣。主茎果序各部种子的品质,以中部和下部较优,上部较劣,各分枝种子的品质,以上部分枝和中部分枝较优,下部分枝较劣。其中以主茎果序中、下部种子种用品质最优。进行整枝留种试验的结果,经过整枝的植株,其茎叶显著增大,角果内籽粒数增加,千粒重增大,发芽率提高。用整枝留种的种子播种,其后代比对照出苗整齐,幼苗生长健旺,产量增加。在油菜良种凡育实践上,为了获得优良的油菜种子,在留种时,可应用主茎留种、整枝留种等方法。2.胜利油菜的传粉习性在成都地区条件下,胜利油菜的开花散粉过程,多数花朵系从傍晚开始活动。最初是花萼顶端裂开,现出柱头。其后花瓣伸出萼片之外。至次日上午,花瓣逐渐开放。约近中午花瓣展平成十字形。在十字形肘期,花药盛裂,散出花粉。约经1—2日后,花瓣复闭合成半开状。其后花瓣边缘萎缩,并逐渐脱落。胜利油菜的雌蕊发育较早。在花蕾时期雌蕊即已具有受粉能力,可以进行蕾期授粉。雌蕊受粉能力较强时期,是开花后的1—3天,约4天后下降,约6天后丧失受粉能力。胜利油菜的花在形态和生理上表现了对于异花传粉,特别是虫媒传粉的适应,但也?

During 1957 to 1962,isolates belonging to the Group Actinomyces ahygroscopicus Yen hadbeen tested for their therapeutic and protectant effect on the incidence of a rape mosaic dis-ease caused by a strain of Turnip Mosaic Virus.The experimental methods consisted ofspraying the testing rape plants with cultural filtrates of Actinomyces isolates before or afterinoculation with Turnip Mosaic Virus strain No.6 of this Laboratory,comparing the symptomsdeveloped and assaying the concentration of the Virus...

During 1957 to 1962,isolates belonging to the Group Actinomyces ahygroscopicus Yen hadbeen tested for their therapeutic and protectant effect on the incidence of a rape mosaic dis-ease caused by a strain of Turnip Mosaic Virus.The experimental methods consisted ofspraying the testing rape plants with cultural filtrates of Actinomyces isolates before or afterinoculation with Turnip Mosaic Virus strain No.6 of this Laboratory,comparing the symptomsdeveloped and assaying the concentration of the Virus on leaves of Nicotiana tabacum var.Huangmiaoyu.As a result of testing 6,376 isolates,only four of them namely Nos.1695,3494,4084 and 4313 cured about 50 per cent of the treated plants,if the spraying was madenot later than 24 hours after inoculation.However,100 per cent of plants inoculated remainedhealthy,if the sprayig was made 24 hours before inoculation.No virus was detected intissues of rape plants which remained apparently healthy owing to the therapeutic treatment.The effective constituents of the cultural filtrates of isolates Nos.1695,3494 and 4048were apparently thermostable,since they were equally effective after being autoclaved under15 pounds pressure for 30 minutes.When any one of the cultural filtrates was mixed withthe virus in vitro,the latter was instantaneously inactivated.Demonstrations revealed thatthe effective constituents of the cultural filtrates were able to be absorbed by the rape plantcells,but translocated only a short distance.All effective concentrations of the cultural filtratesshowed more or less injurious effect to leaf tissues.Further tests made of isolate No.1695 showed that the therapeutic effect varied with thetime intervals between inoculation and spraying.100 per cent of plants were cured,if spray-ing was made within 3 hours after inoculation.Likewise 90 per cent of curing resulted within6 hours after inoculation,25-40 percent within 1-3 days and 5-10 per cent within 5-7 days.Experiments of curing the Kwuting disease of Chinese cabbage caused by K_(1-1) strain of TurnipMosaic Virus revealed that the therapeutic effect of these isolates was more effective onChinese cabbage than on rape.The writers were of the opinion that the variation of theeffectiveness was essentially due to hosts and not to strains of the virus.

在完整的油菜植株上,利用喷叶法测定放线菌代谢物质对病毒病的治疗效果,以处理组的发病率此对照组减少的百分率表示疗效。从1958年到1962年先后测定6,376号次放线菌,找到不吸水灰色放线菌类羣(Actinomyces ahygro-scopicus Yen)的1695、3494、4084和4313四个菌株的代谢物质,在接种油菜花叶病毒(总6号)24小时后喷叶,有50%左右的治疗效果,接种前24小时喷叶有100%的防护效果。接种24小时后喷叶而未发病的植株叶内未能测出有侵染性病毒的存在。从喷药一次的效果来看,显然胜于0.5%2-硫尿嘧啶在油菜上的作用。1695、3494和4084三株放线菌发酵液的有效成分经15磅30分钟的处理后,在植株上测定效果,差异并不大。但是,所有有效浓度对植株均能引起不同程度的黄化等生理反应,使生长遭受一定程度的抑制,类似2-硫尿嘧啶所引起的生理反应。病毒与1695放线菌发酵液混合(1分钟),立即被钝化。发酵液中的有效成分能被叶细胞吸收,通过剪叶法及不同部位局部喷药及接种等初步证明,代榭物质昀有效成分运转的距离似乎极短。1695的发酵液在植株上的治疗效果常因接种与喷药相隔时间的长短而异。...

在完整的油菜植株上,利用喷叶法测定放线菌代谢物质对病毒病的治疗效果,以处理组的发病率此对照组减少的百分率表示疗效。从1958年到1962年先后测定6,376号次放线菌,找到不吸水灰色放线菌类羣(Actinomyces ahygro-scopicus Yen)的1695、3494、4084和4313四个菌株的代谢物质,在接种油菜花叶病毒(总6号)24小时后喷叶,有50%左右的治疗效果,接种前24小时喷叶有100%的防护效果。接种24小时后喷叶而未发病的植株叶内未能测出有侵染性病毒的存在。从喷药一次的效果来看,显然胜于0.5%2-硫尿嘧啶在油菜上的作用。1695、3494和4084三株放线菌发酵液的有效成分经15磅30分钟的处理后,在植株上测定效果,差异并不大。但是,所有有效浓度对植株均能引起不同程度的黄化等生理反应,使生长遭受一定程度的抑制,类似2-硫尿嘧啶所引起的生理反应。病毒与1695放线菌发酵液混合(1分钟),立即被钝化。发酵液中的有效成分能被叶细胞吸收,通过剪叶法及不同部位局部喷药及接种等初步证明,代榭物质昀有效成分运转的距离似乎极短。1695的发酵液在植株上的治疗效果常因接种与喷药相隔时间的长短而异。接种后3小时内喷的效果为100%,6小时降至90%,1—3天为25—45%,5—7天为5—10%。同时,在接种后3天内喷而发病的植株体内其病毒含量比对照少,3天以后喷的则此对照反而有增多的趋势。1695的发酵液在胶州白菜上对孤丁1号的治疗效果(接种后隔24小时喷)为92%,比崐山土种油菜上对总6号病毒的疗效高出三分之一。此种差异可能由于寄主植物的差异引起的。

 
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