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  per unit
    The results indicated that correlation coefficient of yield and other 5 agronomic characters were decreased from plant height (0.48685), 1000-kernel weight (0.45182), spike length (-0.31464) and grain number per spike (0.02924) to spike number per unit (0.01526) in turn.
    结果表明:农艺性状对产量的相关程度依次为:株高(0.48685),千粒重(0.45182),穗长(-0.31464),穗粒数(0.02924),单位面积穗数(0.01526)。
短句来源
    The efficiencies of agronomic characters on yield were 1000-kernel weight (0.71426)> spike length (-0.56871)> plant height (0.46505)> spike number per unit (-0.17531)> grain number per spike (0.04272).
    对产量的直接影响重要性依次为:千粒重(0.71426),穗长(-0.56871),株高(0.46505),单位面积穗数(-0.17531),穗粒数(0.04272)。
短句来源
    thelength of root per unit and per plant were great The root activity per dry-weightand per plant were high and the activity absorb area of root per plant was big.
    粳型高产水稻品种根系的主要特征为每株不定根数多、每株根干重大、每株不定根长度和最长不定根长度长、单位干重根系活性和单株根系活性高、单株根系吸收表面积和单株根系活跃吸收表面积大。
短句来源
    Har 78-9140 and 78-2, the leaves of these two cultivars have nearly the same number of palisade cells per unit area but different leaf thickness, Har 79-9440, with the greater leaf thickness have the greater photosynthetic rate.
    哈79—9440和78—2两品种的叶片有接近相同的单位叶面积栅栏细胞数目,哈79—9440叶片较厚,光合作用速率较高。
短句来源
    The leaf thickness and the number of palisade cells per unit leaf area of 10-12th leaves notably increased.
    10—12节位的叶片厚度和单位叶片面积栅栏细胞数目均显著增加;
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  per
    The results indicated that correlation coefficient of yield and other 5 agronomic characters were decreased from plant height (0.48685), 1000-kernel weight (0.45182), spike length (-0.31464) and grain number per spike (0.02924) to spike number per unit (0.01526) in turn.
    结果表明:农艺性状对产量的相关程度依次为:株高(0.48685),千粒重(0.45182),穗长(-0.31464),穗粒数(0.02924),单位面积穗数(0.01526)。
短句来源
    The efficiencies of agronomic characters on yield were 1000-kernel weight (0.71426)> spike length (-0.56871)> plant height (0.46505)> spike number per unit (-0.17531)> grain number per spike (0.04272).
    对产量的直接影响重要性依次为:千粒重(0.71426),穗长(-0.56871),株高(0.46505),单位面积穗数(-0.17531),穗粒数(0.04272)。
短句来源
    chromosome length of metaphase, and prometaphase including the early to late, three stages were 2.19,2.22,2.32 and 2.29, respectively. It was obvious that the band number per ju chromosome length of different stages had little difference.
    早中期Ⅰ、Ⅱ、Ⅲ和中期染色体组中每单位绝对长度的带数(带/μm)分别为2.19、2.22、2.32和2.29,差异不大。
    To obtain the yield of 12 - 14t hm-2, the unit area total spikelets were 45000 - 50000. The spike and spikelet component were 300 - 340 spikes per m2 and 140 -160 spikelets for Shanyouming86, 240-280 spikes per m2 and 180-200 spikelets for Ⅱ youhangl of big spike type, respectively.
    达到产量12-14t·hm-2 的单位面积总粒数为每m24.5-5万粒,其穗粒结构,汕优明86为每m2300-340穗,每穗140 -160粒,大穗型的Ⅱ优航1号为每m2240-280穗,每穗180-200粒。
    To obtain the yield of 7 - 8t · hm-2, the unit area total spikelets were 30000-35000. The spike and spikelet component were 560 - 600 spikes per m2 and 50 - 60 spikelets for Shanyouming86, 440 -580 spikes per m2 and 60 -80 spikelets for Ⅱ youhangl of big spike type, respectively.
    达到产量7-8t·hm-2的单位面积总粒数为每m23-3.5万粒,其穗粒结构,汕优明86为每m2560 -600穗,每穗50-60粒,大穗型的Ⅱ优航1号为每m2440-580穗,每穗60-80粒。
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  “单位”译为未确定词的双语例句
    A plant with a mutation of Oswm(wm=white midrib) was selected from a M2 population through mutagenizing keng rice cultivar 9522 with 60Co γ-ray.
    通过对粳稻9522γ射线诱变,从M2中筛选出1株带有白色中脉的隐性单位点突变的突变体,定名为Oswm(wm=white midrib)。
短句来源
    The co-expression of transgenes 1Dx5+1Dy10 is probably associated with genotype of donor wheat.Chi-square test presented that the observed ratio of expressed phenotype in all three lines matched the expected segregation value of 3∶1(P>0.05) which shows the integration of single locus of two transgenes respectively.
    2χ检验表明鄂麦1号、鄂麦11号二种基因型T1代种子中转基因表达蛋白1Dx5和1Dx5+1Dy10产生的表型比均符合预期分离比31∶(P>0.05),两种外源基因在小麦基因组中可能均为单位点整合。
短句来源
    The pollination time should be chosen at the time of 16:30~18:30 when not only would the seeds be replete, but the capsule seed quantity be abundant and high seed yield for definite area be prospective.
    授粉时间则应选择在16:30~18:30,不仅结实的种子较饱满,而且蒴果种子数量多,单位面积种子产量高。
短句来源
    Seven QTLs were found respinsible for oil content with single contribution to phenotypic variance ranging from 3.73% to 10.46%.
    共得到7个与含油量相关的QTL,单位点遗传贡献率在3.73%~10.46%之间;
短句来源
    Four QTLs were with hull content were found to have single contribution to phenotypic variance from 4.89% to 6.84%.
    4个与皮壳率相关的QTL,单位点遗传贡献率在4.89%~6.84%之间。
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  per unit
In previous work, under some assumptions, we specified a replacement rule which minimizes the long-run (expected) average cost per unit time and possesses control limit property.
      
The results indicate that carbon fixation benefits received by the main city of Nanjing is 5%-60% of that by natural forests on a per unit area basis.
      
Results indicated that bird richness was higher, per unit area, in the smaller woodlots than the larger ones, and overall bird density decreased with the increase in the size of woodlot.
      
Benthic abundance and biomass were calculated per unit area of sediment.
      
pumping power per unit heat transfer area were plotted.
      
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  per
In previous work, under some assumptions, we specified a replacement rule which minimizes the long-run (expected) average cost per unit time and possesses control limit property.
      
By numerical analysis, the fertility decreases with the per capita capital and per capita consumption increasing and increases with the per capita capital and per capita consumption decreasing on the economic growth path are obtained.
      
The static maximum adsorption capacity of naringin is 32.6 mg/g with naringin concentration at 2.7 g/L, while the dynamic adsorption capacity of naringin is 23.8 mg/g with naringin extract flow rate at two times that of resin volume per hour.
      
The desorption ratio will rise to more than 85% when the flow rate of this optimal eluant is one to two times that of resin volume per hour.
      
Detectability of 0.7 mg/l for pseudoephedrine hydrochloride was achieved at a sample throughput rate of 24 times per hour, which is 30% lower than that obtained by HDI-based conventional CE.
      
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From 1957 to 1960,colchicine aqueous solution has been used for doubling the number ofchromosomes in wheat-rye F_1 hybrids.The concentrations of colchicine used for treatmentwere 0.04% and 0.05%.Hybrid seedlings were exposed in colchicine solution for 4 days inroom temperature not over 15℃.After the treatment,the seedlings were transplanted ingreenhouse where a condition of high humidity and comparatively low temperature (usuallybelow 10℃) was maintained until the seedlings had recovered from colchicine poisoning.Themain...

From 1957 to 1960,colchicine aqueous solution has been used for doubling the number ofchromosomes in wheat-rye F_1 hybrids.The concentrations of colchicine used for treatmentwere 0.04% and 0.05%.Hybrid seedlings were exposed in colchicine solution for 4 days inroom temperature not over 15℃.After the treatment,the seedlings were transplanted ingreenhouse where a condition of high humidity and comparatively low temperature (usuallybelow 10℃) was maintained until the seedlings had recovered from colchicine poisoning.Themain results are summarized as follows:1.A total of 4210 wheat-rye F_1 hybrid seedlings were treated with colchicine and 2599or 61.7% of the treated seedlings had recovered from the treatment.2.Among the recovered seedlings,about 40.8% of the sterile F_1 hybrid plants were turnedto be partial fertile and various amount of seeds were obtained from these successful plants.3.Whither the hybrid seedlings were vegetatively propagated by separating the tillersor not,no difference in percentage of successful plants has been observed.However,theseedlings which have been slightly wounded on crown part by a sharp razor blade before treat- ment,resulted in 8.8% more successful plants than those not wounded.4.In successful plants,an average of 30% of spikes would be partial fertile and setvarius amount of seeds.In other words,an average of 30% of the spikes that came from theaxile buds which have been exposed directly to colchicine treatment,would become sectorialchimera of polyhaploid and amphidiploid.The tillers that came from the directly exposedaxile buds are called primary tillers.5.The tillers that came from the axile buds of the primary tillers are called secondarytillers.According to the analysis of the data,it has been shown that the secondary tillerusually begin at the eighth tiller of an individual plant.Compared with the primary tillers,only 10% of the secondary tillers,as calculated from the data,would show sectorial chimeraon spikes and set various amount of seeds.6.The chimera spikes would produce 7 grains per spike in average.In an individualplant,the fewer the number of chimera spikes,the less the number of grains could be pro-duced by each chimera spike.In the case of only one chimera spike per plant,only 4.5 grainsin average per changed spike could be obtained.While there was 6 changed spikes per plant,the number of grains per chimera spike would increase to 22.4.7.If the average number of primary tillers of the recovered plants could be increasedto 6 or 7 per plant by some proper measures at tillering stage,it has been estimated that inaddition to the usual rate of successful plants,at least 15% more could be obtained.8.After analysis of the data,it has been clearly shown that the axile buds which havebeen effected by treatment would have a less chance to grow into tillers than those which havenot been effected.If we could find some proper measures to eliminate such a difference intillering,then,by estimation,the percentage of successful plants could be increased to morethan 80%.This is an interesting problem to be studied concerning the efficiency of colchicinetechnique.9.A total of 712 lines of Triticales have been thus produced by doubling the number ofchromosomes in wheat-rye F_1 hybrids with colchicine treatment at tillering stage.

自1957年到1960年曾三次用秋水仙精处理小麦——黑麦杂种第一代的分蘖苗,获得小黑麦品系712个。秋水仙精用0.05%及0.04%水溶液,处理时间四天。在处理后的成活植株中,处理成功的植株,三次总平均占40.8%。根据资料分析的结果,由直接受到处理影响的腋芽所长成的一次分蘖有30%的成功率,而由一次分蘖上所长出来的未直接受到处理影响的二次分蘖则只有10%的成功率。如能促使处理后恢复的植株尽可能多地产生一次分蘖,使每一单株都具有6—7个以上穗子,这样,以株为单位的处理成功率估计至少还能增加15%。

The present paper deals with the physiological activity of the leaf extract of Calonyction aculeatum(Linn)House and its promoting effect on tuber production of sweet potato. Calonyction aculeatum is a ornamental species of Convolvulaceae. In the leaf extract it contains physiologically active substance which plays many regulating and controlling effects such as stimulating root development of sweet potato cuttings, increasing germination rate of rice seeds, Promoting growth of rice seedlings and increasing number...

The present paper deals with the physiological activity of the leaf extract of Calonyction aculeatum(Linn)House and its promoting effect on tuber production of sweet potato. Calonyction aculeatum is a ornamental species of Convolvulaceae. In the leaf extract it contains physiologically active substance which plays many regulating and controlling effects such as stimulating root development of sweet potato cuttings, increasing germination rate of rice seeds, Promoting growth of rice seedlings and increasing number of peanut flowers. Deta of biological assay shows the physiologically active substance is neither gibberellina nor auxins. On grafting of Calonvction aculcatum to the vine of sweet potato, it will. be interestingly to see that the tuber production in then highly promoted. However while dusting this leaf extract on the leaf surface of sweet potato race "Little five teeth" under appropriate dilution and suitabie time of application, as well as on grafting, where a similar result would be obtained, i, e, the normal course of tuber development has been subjected under some profound influence and it appears as if the tuber is firstly inhibited and then accelerated. The correlationship between inhibition and acceletation and their transversion plays the role of tuber developmnt and the tuber production is thus increased. In these tubers the starch and the total sugar contents are promoted, the dry weight is higher up and the quality, is therefore improved. The strength of the physiological actvity of the leaf extract is calibrated by special method of assay, the so called "Keng rice root suppresion method" and the unit is called "Keng rice unit". Because the rice should be race of subspecies Keng Ting of Oryza sativa Linn. In field spray different race of Crops requires different strength of activity of the leaf extract. Upon repeated tests in field it is worthy to say that 0.5—1.0 "Ki-Keng unit" is the satisfactory strength to induce potato race "Apple red" and sweet potato race "Victory 100" to give excellent yields of tubers. To the former it is better to spray at the initial stage of flowering and to the latter it is suitable to spray at the time of their leaves enveloping the plough rows.

月光花叶提取物中含有生理活性物质,对甘薯的插枝发根,水稻的种子发芽和幼苗生长以及对花生的开花数能起调控作用。它不属于赤毒素及生长素类物质。以适当浓度喷洒甘薯“小五齿”叶面,对块根发育有很大影响,重现了甘薯与月光花嫁接后薯块发育过程中所出现的先抑制后促进的抑促相关规律及其转化过程,并且获得增产;薯块的淀粉含量和(?)醣量增加,晒干率提高,品质有所改善。重复验证了稻根抑制法标定叶提取物的生理活性含量在大田生产上的应用价值,证实了以0.5—1“吉粳单位”浓度在甘薯“胜利百号”封行期,马铃薯“苹果红”始花期进行叶面喷洒都能获得增产。

This experiment was carried out in 1975—1976 to study the developmentaI control of rudimentary panicles in rice plant. The main results were as follows:

水稻幼穗第一苞分化期或第一次枝梗原基分化期,向土壤施速效氮肥、叶面喷施GA_35ppm加根外追肥(1%尿素)等,能明显地增加第二次枝梗和颖花数量,减少颖花和枝梗的退化,增加有效穗和每穗結实粒数,达到提高單位面积产量的目的。采用这几种控制措施所获得的增产效果与其所引起的生理效应相一致,它能促进植株在幼穗整个发育期的叶片含氮量增加,茎秆和叶鞘的淀粉和糖含量增加,植株各器官积累和分配光合产物C~(14)和P~(32)吸收量增多,尤以输送和分配到穗中部和穗下部的C~(14)和P~(32)的比例增加,幼穗呼吸强度增强,代謝旺盛,这些良好的生理性狀表現是揭发幼穗发育控制处理措施达到提高水稻單位面积产量的內部規律性的証据之一。本文还从采用幼穗发育控制所引起的这些良好的生理性狀效应出发,论定水稻生育中期施肥的必要性、可能性和当前生产上提供的可能条件。

 
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