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yield lose
相关语句
  产量损失
     STUDY ON THE YIELD LOSE OF SOYBEAN CAUSED BY Loxostege stictical is LINNE AND ITS THRESHOLD
     草地螟为害大豆产量损失及防治指标研究
短句来源
     Preliminary Surver on the Damage Structure and the Yield Lose Caused by Striped Rice Borer
     二化螟危害结构及产量损失初探
短句来源
     By the means of inoculating at different stages and spraying fungicide control disease index to study the relation between disease and yield lose, the result showed that the factors of yield was affected by this disease, meanwhile constructed equations of yield lose.
     利用接菌与喷药保护的方法使小麦在不同时期感染叶枯性病害,对发病情况与产量损失的研究表明:病害的发生影响了小麦的产量组成而使小麦减产。 并研究了小麦产量组成因子与产量的相互关系,建立了产量损失方程。
短句来源
     This experiment proceeded resistanse research and the yield lose estimation to 20 corn rarities.
     试验对20个玉米品种进行抗病性研究,并对其产量损失进行了估计。
短句来源
  “yield lose”译为未确定词的双语例句
     Owing to the early-senescence of leaves,the grain yield lose reached about 5-6% in 20 days afterflowering.
     开花后20天内,由于叶片早衰引起的籽粒产量损失率约为5~6%。
短句来源
     The Effect of Wheat Leaf Blight on Yield Lose and Yield Factors
     叶枯性病害对小麦产量及产量因子的影响
短句来源
     During the seedling stage 10 to 50 days after sowing,the earlier cucumber seedlings are treated by high temperature,the more yield lose.
     品系NY 1则在上述产量形成的诸因子中均有一定优势。 在播种后 10~ 50d内 ,黄瓜遭遇高温的苗龄越小 ,产量下降就越多。
短句来源
  相似匹配句对
     10 yield.
     结果表明,复合肥不同施用量对油研10号的产量产生显著影响。
短句来源
     Gains and Lose
     得与失
短句来源
     Its yield is higher by c.
     使用C.
短句来源
     The Effect of Wheat Leaf Blight on Yield Lose and Yield Factors
     叶枯性病害对小麦产量及产量因子的影响
短句来源
     However British government yield look lose and slow too.
     然而,英国政府的退让却显得太少而太慢。
短句来源
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Results obtained from preliminarily studies indicated that the three uppermost leaves of the early-senescent lines died 4-8 days earlier than those of the normal varieties of wheat.This phenomenonwas especially serious with the 2nd and 3rd leaves from the top.In early-senescent lines,the totalamount of assimilates distributed to the grains from ears and leaves decreased by 5% at flowering timeand in 10 days after flowering as compared with that in normal lines;and the outflow efficiency ofassimilates from ears...

Results obtained from preliminarily studies indicated that the three uppermost leaves of the early-senescent lines died 4-8 days earlier than those of the normal varieties of wheat.This phenomenonwas especially serious with the 2nd and 3rd leaves from the top.In early-senescent lines,the totalamount of assimilates distributed to the grains from ears and leaves decreased by 5% at flowering timeand in 10 days after flowering as compared with that in normal lines;and the outflow efficiency ofassimilates from ears and the uppermost 2nd and 3rd leaves was 4-23% lower than that of normallines,but the amount remained was 2-12% higher.As distinguished from normal lines,the outflowefficiency of the flag leaf of the earlysenescent lines increased by 2-9%.Owing to the early-senescence of leaves,the grain yield lose reached about 5-6% in 20 days afterflowering.It is significant,therefore,in breeding practice that strains which didnot gave sigus ofearly-senescence at later stage should be selected.In order that the functional period of the upper lea-ves could be prolonged and the grain weight could be increased,special attention should be paid tothe application of fertilizers for ear and grain formation.

研究初步表明,早衰性品系的上部三张叶片绿色面积和叶色消退比正常品种为快,约早4~8天。~(14)C 标记指出,在开花期穗及上部三张叶片的~(14)C 同化物分配为:45%运向茎杆等供继续生长之用;30~35%运向籽粒;20~25%自存。开花后10天约76~81%运向籽粒;11~16%自存;运向茎杆等只占7%。在此期间,早衰性品系分配到籽粒的~(14)C 同化物比正常品系少5%。标记部位留存则多5%。其原因可能由于叶片早衰使同化物输出效率低所致。分析表明,早衰性品系穗及倒二叶、倒三叶~(14)C 同化物输出效率低于正常品系4.0~23.0%。开花后20天内,由于叶片早衰引起的籽粒产量损失率约为5~6%。由于开花后早衰性品系倒二叶、倒三叶比正常品系衰老早5~8天,而此时70%左右的光合产物运向籽粒。因此,在进行早熟小麦育种时,应尽量选育后期叶片不早衰的材料。在栽培上,应重视穗、粒肥的施用,以延长上部叶片功能,增加粒重。

Severity and yield loss of rice sheath blight (P. sasakii) were studied under different conditions of applications of N, K fertilizers and planting densities during 1987-1989. Results showed that the nonlinear regressive relationships of the disease severity and total yield loss among the three experimental factors were significant (p<0.01),but the yield lost from infected plants was not significantly related to any of the factors howeven was correlated with the disease index values as the...

Severity and yield loss of rice sheath blight (P. sasakii) were studied under different conditions of applications of N, K fertilizers and planting densities during 1987-1989. Results showed that the nonlinear regressive relationships of the disease severity and total yield loss among the three experimental factors were significant (p<0.01),but the yield lost from infected plants was not significantly related to any of the factors howeven was correlated with the disease index values as the following formula: Y=0.0746+2.3334X (p<0.01; X=l,3,5,7,9)

采用二次回归通用旋转组合设计,研究了水稻纹枯病的危害程度、产量损失与亩施氮量、施钾量和水稻移栽密度的关系。结果表明:水稻成熟期纹枯病病指、总产量损失与氮、钾、密因素存在极显著的非线性关系(p<0.01),但病株的产量损失与这些因素的关系不明显(p>0.05),与病情严重度分级的关系极显著,且:y=0.0746+2.333 4x(p<0.01)。此外,本文还对水稻在几乎不受病虫危害时的产量水平,受纹枯病危害后的产量损失与试验因素间的关系,进行了分析。

This paper reported rice yield lost degree and effect of saving method by using model flood in diffrent stage of hybrid rice growth and presented the cause that rice yield reduced and the situation that the nutritive material was cumulated after the flood. At last it pointed out the correspond saving method according to the damage degree of rice ear.

本文采用模拟洪水的方法,探讨杂交稻不同生育期淹水对稻谷产量损失的程度和灾后挽救措施的应用效果。分析了各时期淹水后稻谷减产的原因及淹后营养物质的变化。根据稻穗损失情况,提出相应的救灾措施。

 
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