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成穗数
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  ear number
     The trend is that the highest grain yields and ear number of different types wheat under same planting density were obtained at row spacing 16.67 cm.
     同一密度下不同行距小麦的产量、成穗数存在极显著差异,总的趋势是16.67cm行距产量、成穗数最高。
短句来源
     The optimum row spacing required for realizing the biggest ear number of (super-high) yielding wheat varieties was different because row spacing and variety of (super-high) yielding wheat interact on ear number. The biggest ear number were inchieved at row spacing of (16.7 cm) for Zhoumai 16 and Aizao 8, for Wenmai 6-986 and Bainong 9711 at 20 cm and for Yanshi 4110 at 23.3 cm.
     不同品种要实现最大成穗数所要求的最佳行距不同:周麦16和矮早8以行距16.7cm时最高,温麦6-986和百农9711以行距20cm时最高,偃师4110以行距23.3cm时最高;
短句来源
     In this paper, we treated the stems and leaves of rice with plant growth regulator after rice reviving stage. The result showed that spraying 2,4 - D at an appropriate concentration could increase the yield by 497. lkg/hm2, which is 6. 22% higher than that of control. Adding NAA in same times could reduce ear number and decrease the yield increasing effect even reduce the yield.
     本研究采用植物生长调节剂在缓秧后对水稻进行茎叶处理,结果表明:喷施适当浓度的2,4—D,可增产497.1kg/hm~2,增产率为6.22%,同时加入NAA,成穗数则下降,会降低增产效果甚至减产。
短句来源
     The optimum row spacing required for realizing the biggest ear number of super-high yielding wheat was different because of interaction between row spacing and variety of super-high yielding wheat. It suggests that grain yield may be increased by adjusting row spacing to raise ear number according to the contribution of each yield components to yield of super-high yielding wheat.
     由于行距与品种的互作效应,不同超高产小麦品种要实现成穗数最大所要求的最佳行距不同,在生产上根据不同超高产小麦品种各产量构成因素对产量的贡献不同,可以通过行距调整增加成穗数以增产。
短句来源
     The results showed that the growth stages,ear number per plant and 1000-kernel weight of transgenic line were similar to those of the non-transgenic one,while the seed number and yield per plant were 35.3% and 39.5% higher than those of the control;
     单株籽粒数和单株产量平均比对照提高了35.3%和39.5%; 在单株成穗数和千粒重方面与对照无明显差异,平均株高增加了3.8 cm。
短句来源
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  mature spike number
     Relationship between mature spike number of highland barley and climatic factors
     高原春青稞株成穗数与气象条件关系
短句来源
     The results from tests show that,from three-leaf to tillering stages, more raining are favor of improving mature spike number.
     试验结果表明,青稞三叶~分蘖期降水偏多有利于株成穗数的增加;
短句来源
     From tillering to jointing,the disadvantageous factors for mature spike number are high temperature and partly raining.
     分蘖~拔节期气温高、降水少,对增加株成穗数极为不利;
短句来源
     In recent 35 years, climatic warming and rainfall decreasing occurred in tillering to jointing stages, but that are disadvantageous conditions of increasing mature spike number.
     近35年分蘖~拔节期平均气温呈上升趋势,降水呈减少趋势,气候变暖、变干均不利于青稞株成穗数的增加。
短句来源
  “成穗数”译为未确定词的双语例句
     The suitable proportinon of the number of fundamental seedling, stem in overwinter period, stem in jointing stage and ear at harvest was 1 : 5.7 : 6.5 : 3.4
     基本苗、越冬头数、起身期头数、成穗数的比例为1:5.7:6.5:3.4比较适宜。
短句来源
     The growth period is 99~122 d,belonging to late maturity variety. The plant height is 78~100 cm,No. of spike is 4 890 000~7 485 000 /hm~2, spikelet number is 16,grains per spike is 37.5~41.0,1 000-grain weight is 48.4~64.8 g and bulk is 834 g/L.
     生育期99~122 d,属早熟品种,株高78~100 cm,成穗数489.0万~748.5万穗/hm2,小穗数16个,穗粒数37.5~41.0粒,千粒重48.4~64.8 g,容重834 g/L。
短句来源
     The average length of plant is 78 cm and average length of spike is 8.0 cm. There is 15 spikelets and 41 seeds in every spike. Thousand-grain weight,natural weight and valid tiller is 36.01 g,728.5 g/L and 543.6 thousand/hm~2 respectively.
     该品系平均株高78 cm,穗长8.0 cm,小穗数15个,穗粒数41粒,千粒重36.01 g,容重728.5 g/L,成穗数543.6万穗/hm2。
短句来源
     5:5 and 7:3 nitrogen application at the booting period (A3B2, A3B1) greatly improved the 1000-kernel weight and kernel number per ear, but the yield was not so high as that of A2B2 for their fewer spikes ;
     孕穗期追氮5:5(A_3B_2)与7:3(A_3B_1)后期千粒重与穗粒数明显提高,但因单位面积成穗数较少,因而,增产效果次于A_2B_2;
短句来源
     The percentage of earbearing tillers in the field, the number of grains per ear, thousand kernel weight and yield were 14.2%,16.8%,3.8% and 34.5% higher than those of uncovered drilling wheat respectively.
     田间成穗数、穗粒数和千粒重分别比露地条播小麦提高 14.2 %、16 .8%和 3.8% ,产量提高 34.5%。
短句来源
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  ear number
The results of genetical analyses of data for the characters ear number, grain number per ear, 1000 corn weight and straw length are presented.
      
Several yield components were measured on equal numbers of plants per family: grain yield (GY), ear number (ENO), kernel number (KNO), and 100-kernel weight (HKWT).
      
A major QTL for ear number per plant was identified on chromosome 6B which was negatively co-localised with leaf fresh weight, peduncle N, grain N and grain yield.
      
At all stages moderate and severe water stress decreased plant height, leaf area, ear number, 1000-grain weight, grain yield and water-use efficiency.
      
It is remarkable that a variety-ear number interaction manifests itself for both mentioned data: as far as Jufy is concerned the first developing ear produces least, whereas in Orca and Peko it produces most.
      
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Xizang Plateau belongs to an ecotype of extremely late maturing wheat and barley crops in China. Recently there appeared a number of high-yield wheat and naked-barley fields with over 1,000 catties per mu, the highest per mu output of winter wheat reaching 1,742 catties. The high-yield wheat and barley crops were characterized by big ears with plump grains, heavy ear weights, compact plant types and a large number of ears per unit area. In high-yield wheat plots at the level of 1,000—1,600 eatties per mu, for...

Xizang Plateau belongs to an ecotype of extremely late maturing wheat and barley crops in China. Recently there appeared a number of high-yield wheat and naked-barley fields with over 1,000 catties per mu, the highest per mu output of winter wheat reaching 1,742 catties. The high-yield wheat and barley crops were characterized by big ears with plump grains, heavy ear weights, compact plant types and a large number of ears per unit area. In high-yield wheat plots at the level of 1,000—1,600 eatties per mu, for example, the number of ears in each mu reached 250,000—470,000 with an average of 40—50 grains on each ear and 45—50 grams of 1,000-grain-weight. Wheat and naked-barley varieties that originated from interior plains, when introduced to this plateau, also showed a marked increase in the number of grains per ear and the 1,000-grain-weight, and a decrease in their plant heights. It is evident that the ecological environment of Xizang Plateau provides favorable conditions for a full and coordinate development of the three yield components of wheat and barley.Crop yield is actually a result of the accumulation and distribution of organic matter undertaken by the crop community during the growing season. The mild summer temperature, abundant sunshine and strong solar radiation ecologically benefit the growth and organic matter accumulation of wheat and barley which have a natural inclination for such climatic conditions. The data collected by physiological measurement of wheat during its grain-filling stage indicate that the rates of photosynthesis in leaves and the dry matter accumulation in grains are significantly higher compared with those of wheat crops in plains of the same latitudes. Morever, the long growing period of wheat and the especially prolonged functional duration of its foliage are also important factors in the accumulation of much more organic matter. The integration of the local effect of temperature with the photo-thermal conditions leads to the prolonged growing stages of these crops. Particularly, the durations of spike differentiation and grain-filling stages of wheat and barley are markedly elongated by a slow rising of temperature in spring and the exclusion of extremely high temperature over 30℃—the upper limit for photosynthesis—in summer, which results in more grains per ear and heavier grain weight. Sufficient sunshine and strong solar radiation during the jointing stage accompanied with mild and dry Climate enable the plant to grow compact,thus increasing the number of ears per unit area. The economic yield coefficient of wheat and barley crops in Xizang Plateau is significantly higher than that in the interior plains of this country.

西藏是我国麦类作物的一个极晚熟生态区,近年来,小麦、裸大麦均出现一批亩产千斤以上的高产田块,冬小麦的最高亩产量达1742斤。西藏麦类作物高产的显著特征是穗大粒饱,穗粒重大和株型紧凑,成穗数多,亩产1000—1600斤的小麦丰产田块,平均每穗粒数40—50粒,千粒重45—50克以上,亩穗数25—47万。内地平原地区的小麦、裸大麦品种引至高原种植,亦明显表现穗粒数增多,千粒重增高和株高降低等特点,足见高原的生态环境非常有利于麦类作物的三个产量构成因素获得较为充分而协调的发展。 作物产量实质上是作物群体在其生育过程中有机物质积累与分配的结果。西藏高原气候温凉、夏季凉爽、日照充足,太阳辐射强的生态条件有利于喜温凉的麦类作物生长和有机物质积累。灌浆期的生理测定资料表明,小麦叶片的光合强度和籽粒干物质的积累速率,均显著高于同纬度平原地区。同时,小麦的生育期长,叶片的功能期特长,亦是有机物质积累较多的重要原因。温度的地区效应和温光条件的有利配合,导致西藏高原麦类作物的生育期延长,特别是春季升温缓慢扣夏季不出现30℃以上的极限高温,显著延长了小麦、裸大麦的幼穗分化期和籽粒灌浆期,从而促进了穗粒数增多和粒重的增高。...

西藏是我国麦类作物的一个极晚熟生态区,近年来,小麦、裸大麦均出现一批亩产千斤以上的高产田块,冬小麦的最高亩产量达1742斤。西藏麦类作物高产的显著特征是穗大粒饱,穗粒重大和株型紧凑,成穗数多,亩产1000—1600斤的小麦丰产田块,平均每穗粒数40—50粒,千粒重45—50克以上,亩穗数25—47万。内地平原地区的小麦、裸大麦品种引至高原种植,亦明显表现穗粒数增多,千粒重增高和株高降低等特点,足见高原的生态环境非常有利于麦类作物的三个产量构成因素获得较为充分而协调的发展。 作物产量实质上是作物群体在其生育过程中有机物质积累与分配的结果。西藏高原气候温凉、夏季凉爽、日照充足,太阳辐射强的生态条件有利于喜温凉的麦类作物生长和有机物质积累。灌浆期的生理测定资料表明,小麦叶片的光合强度和籽粒干物质的积累速率,均显著高于同纬度平原地区。同时,小麦的生育期长,叶片的功能期特长,亦是有机物质积累较多的重要原因。温度的地区效应和温光条件的有利配合,导致西藏高原麦类作物的生育期延长,特别是春季升温缓慢扣夏季不出现30℃以上的极限高温,显著延长了小麦、裸大麦的幼穗分化期和籽粒灌浆期,从而促进了穗粒数增多和粒重的增高。拔节期日照充足、太阳辐射强、温凉少雨的气候条件,有利于株型生?

Summer Seeding wheat planted on the hilly dry land in central part of shanxi, may utilize the good conditions of the abundant rainfall, higher temperature and sunshine of July, August and september. But only a few varieties can be adapted. The main varieties of summer seeding wheat recently released in the central part of shanxi province are: "Summer wheat no. 1"and"Shanxi spring wheatno.3". The total area under cultivation in 1981 was 684.4 mu, the average yield was 153 Jin/mu in Pingyao. The total area under...

Summer Seeding wheat planted on the hilly dry land in central part of shanxi, may utilize the good conditions of the abundant rainfall, higher temperature and sunshine of July, August and september. But only a few varieties can be adapted. The main varieties of summer seeding wheat recently released in the central part of shanxi province are: "Summer wheat no. 1"and"Shanxi spring wheatno.3". The total area under cultivation in 1981 was 684.4 mu, the average yield was 153 Jin/mu in Pingyao. The total area under cultivation in 1982. was 1389 mu, the average yield was190jin/mu, and the highest yield was 531.5Jin/mu in Yuci. For the conducted test in Yuci, we used 13 varieties in 1981, and 12 varieties in 1982, respectively, in order to determine the most productive varieties. The recently release cultivars which yielded more than the control weres "Inia×44". "3696", "80-1" and "7064". Those varieties increased the yield mostly through the increased number of heads, with the increase of a larger leaf area, fuller use of the solar energy, assimilate and accumulate more dry matter, and therefore increase the productivity directly. It is not possible to increase the yield on the basis of the number and weight of kernels alone, it is also necessary to breed multispike varieties. The yield component design is as follows: 20—25 ten-thousand heads per mu, 20kernels per spike, and a weight of 40—45grams/1000 kernels. If these conditions are met, a yield of 300 Jin/mu is Possible.

夏播小麦在海拔较高的山区丘陵旱地种植,可以充分利用七、八、九月雨水多、温度高、光照足的自然条件,扬长避短,发挥天时地利的优势;为改变我省旱地小麦产量长期低而不稳的局面,探索了一条新的增产途径。目前可利用适合夏播的小麦品种不多,主要的是夏麦1号(青春13×墨巴66)与晋春3号即忻春矮2号(咸农39×墨巴66),播种面积逐年扩大,1981年在平遥夏播小麦684,4亩,平均亩产153斤;最高亩产521斤。1982年在榆次县扩大面积1389亩,平均亩产190斤;最高亩产达到531,5斤。 1981年在榆次县选用13个品种(系),1982年选用12个品种,进行品种比较与区域试验。结果产量较高超过对照的有:伊尼亚×44,3696,80-1和7064等,主要增产原因是每亩穗数较多超过23万;每穗有20粒左右,千粒重达到40克以上。因为亩穗数增加,叶面积系数也相应大幅度增加,这样,从时间上和空间上充分利用太阳光能,同化积累更多的干物质;为获得高产奠定物质基础。多穗形品种的穗数增多,与产量提高密切相关。保苗增穗的主要途径有三:(1)窄行匀播,合理密植,增加基本苗。(2)种子处理,增强抗性;确保总茎数。(3)提高分蘖力,促进增加...

夏播小麦在海拔较高的山区丘陵旱地种植,可以充分利用七、八、九月雨水多、温度高、光照足的自然条件,扬长避短,发挥天时地利的优势;为改变我省旱地小麦产量长期低而不稳的局面,探索了一条新的增产途径。目前可利用适合夏播的小麦品种不多,主要的是夏麦1号(青春13×墨巴66)与晋春3号即忻春矮2号(咸农39×墨巴66),播种面积逐年扩大,1981年在平遥夏播小麦684,4亩,平均亩产153斤;最高亩产521斤。1982年在榆次县扩大面积1389亩,平均亩产190斤;最高亩产达到531,5斤。 1981年在榆次县选用13个品种(系),1982年选用12个品种,进行品种比较与区域试验。结果产量较高超过对照的有:伊尼亚×44,3696,80-1和7064等,主要增产原因是每亩穗数较多超过23万;每穗有20粒左右,千粒重达到40克以上。因为亩穗数增加,叶面积系数也相应大幅度增加,这样,从时间上和空间上充分利用太阳光能,同化积累更多的干物质;为获得高产奠定物质基础。多穗形品种的穗数增多,与产量提高密切相关。保苗增穗的主要途径有三:(1)窄行匀播,合理密植,增加基本苗。(2)种子处理,增强抗性;确保总茎数。(3)提高分蘖力,促进增加成穗数。单靠增加穗粒数与千粒重来提高夏播小麦产量,还有一定的局限性;而培育多穗型品种可能是主要方向。在多穗型的基础上,再选择大粒品种也是夏播小麦育种的一个重要目标。产量结构的设计是:每亩20——25万穗,每穗20粒,千粒重40——45克;亩产就可达到300斤左右。

In order to gain optimum number of panicls for high yielding inrice prodention, a experimental formula was set up as: X=Y/(1+t_1)〔1+(N-n-SN-1-a)r_1〕+t_2r_2In the formula, X stands for the number of basic seedlings needed pemu, Y stands for the optimum number of panicles, N-n stands for thecritical leaf-age-period of effective tillers, SN for the leaf age of theseedlings fransplanted, t_1 for the number of tillers having more than 1leaves, t_2 for the number of tillers being less than two leaves. The r_1and r_2...

In order to gain optimum number of panicls for high yielding inrice prodention, a experimental formula was set up as: X=Y/(1+t_1)〔1+(N-n-SN-1-a)r_1〕+t_2r_2In the formula, X stands for the number of basic seedlings needed pemu, Y stands for the optimum number of panicles, N-n stands for thecritical leaf-age-period of effective tillers, SN for the leaf age of theseedlings fransplanted, t_1 for the number of tillers having more than 1leaves, t_2 for the number of tillers being less than two leaves. The r_1and r_2 represent the rate of effective tillers occured in main tillers andthe rate of survived small tillers respectively. With different vepresentative rice varieties an 1 different treatmentssuch as the sowing norms, the seedlings being of different leaf-age-per-iod, the forms of transplanting different densities of plants transplantedand different fertility levels, the experiment weve carried out in variousecological districts in Jiangsu Province. It was confivmed that the formulaconld be comprehensively used to determine the desirable number ofpanicles developed per seedling the panicles which depend on the mainstems or on the tillers and the proportion of panicles which shoulddevelop from tillers, and that the formula was feasible to direct riceproduction.

本文根据适宜穗数(Y)与单株成穗数的关系,即有效分蘖临界叶龄期(N-n),秧龄(SN),秧苗单株3叶以上大蘖(t_1)与2叶以下小蘖(t_2),以及主茎与大蘖本田的有效分蘖发生率(r_1)与小蘖移栽成活率(r_2),建立基本苗(X)经验公式为: X=Y/((1+t_2)[1+(N-n-SN-1-a)r_1]+t_2r_2) 试验在江苏省不同生态区进行,选择不同类型代表品种,秧苗经密度、秧龄等处理,大田进行不同移栽方式和密,肥处理,并通过4年大面积生产实践,确认该公式能较全面地反映单株成穗数,依靠主茎还是分蘖成穗以及分蘖穗应占的比例,在指导生产上是切实可行的。

 
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