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株成穗数
相关语句
  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
  “株成穗数”译为未确定词的双语例句
     The results showed that the yield increased significant applying of "Jiulongsheng" and " Banzhongji". The best treatment is "Jiulongsheng" seed dressing, and secondary root increased 0.4 per plant, tiller increased 1.1 per plant, heads increased 28.0×104/hm2, kernel increased 0.3 per head, yield increased 702.9kg/hm2.
     以九隆升效果最为明显,可以使小麦次生根增加0.4条/株,分蘖增加1.1个/株,成穗数增加28.0×104/hm2,穗粒数增加0.3粒/穗,单产增加702.9kg/hm2,增产幅度达11.6%。
短句来源
  相似匹配句对
     Relationship between mature spike number of highland barley and climatic factors
     高原春青稞与气象条件关系
短句来源
     y),spikes((?)
     y)、减少率((?)
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,对增加极为不利;
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的增加;
短句来源
     (2)Raising rate of effect ear.
     提高率;
短句来源
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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。

We investigated and quantitatively described the rule of ear formation per plant and the interrelationships among ears per plant, number of spilelets, grains per ear and weight of 1000 grains in winter wheat Yangmai No.5 under different sowing time and baise seedlings. The result showed that under the condition of basic seedlings 4~20 x 10~4 per mu and sowing time from October 9 to November 9 the less the basic seedlings and earlier sowing time, the larger the potential of single plant which gave more ears per...

We investigated and quantitatively described the rule of ear formation per plant and the interrelationships among ears per plant, number of spilelets, grains per ear and weight of 1000 grains in winter wheat Yangmai No.5 under different sowing time and baise seedlings. The result showed that under the condition of basic seedlings 4~20 x 10~4 per mu and sowing time from October 9 to November 9 the less the basic seedlings and earlier sowing time, the larger the potential of single plant which gave more ears per plant, more seeded spikelets, less sterils spikelets more grains per spikelet, larger ear and higher weight of 1000 grains. The relationship between ears per plant (x) and grains per ear (y) could be deseribed by equation (?)= ax~b. The relationship between number of seeded spikelets per car (x) and grains per ear (y)could be described by equation (?)= ax + bx~2. The relationship between number of sterile spikelets per ear (x) and grains per ear (y) could be described by equation (?)= ac~bx.

1987~1989年对扬麦5号在不同播期和基本苗下的单株成穗规律以及单株成穗数、小穗数、每穗粒数和干粒重等穗部性状之间的相互关系进行了分析研究,在基本苗4~20万、播期10月9日~11月9日范围内,基本苗越少、播期越早、个体的潜力越大;表现在单株成穗多,结实小穗数增加,退化小穗数减少,小穗平均结实粒数增加,以及穗型大、粒重高。单株成穗数(x)与每穗粒数(y)的关系可用y=ax~b方程加以描述。每穗结实小穗数(x)与每穗粒数(y)的关系可用y=ax+bx~2方程加以描述。每穗退化小穗数(x)与每穗粒数(y)的关系可用y=ae~(bx)方程加以描述。

A regression design(Table 1)was adopted with Yangmai 5, a wheat cultivar of spring habit, as the material in order to find an optimized combination of sowing date, sowing rate and nitrogen application to win wheat yields as high as 6000 kg per hm2 or more. The results are summarized as follows. ①Earlier sowing and less seedlings per hectare could increase the leaf number per main stem(Table 2).②The ear number per plant was increased with decreasing seedlings per hectare, especially when the seedling number...

A regression design(Table 1)was adopted with Yangmai 5, a wheat cultivar of spring habit, as the material in order to find an optimized combination of sowing date, sowing rate and nitrogen application to win wheat yields as high as 6000 kg per hm2 or more. The results are summarized as follows. ①Earlier sowing and less seedlings per hectare could increase the leaf number per main stem(Table 2).②The ear number per plant was increased with decreasing seedlings per hectare, especially when the seedling number was less than 1.5 million per hm(Fig. 1).③The filled grain number per ear was increased and the 1000-grain weight decreased with the increase in the ear number of per plant(Fig. 2). The decrease in 1000-grain weight could cause the decrease in the volume weight of grains(Fig. 3).④The wheat yield was increased with the increased amount of accumulated dry matter after anthesis(Fig.4, Table 3).⑤When the proportion of nitrogen fertilizer applied as basic fertilizer, tillering fertilizer and heading fertilizer was 5: 2: 3, the wheat yield was the highest(Table 4). Through frequency analysis,an optimized combination of cultural factors for a target yield Of more than 6000 kg/hm in average Climatic conditions was established, i. e., sowing date Oct. 12-15, seedling number 0. 75-0. 90 million/hm, total nitrogen application 300 -345 kg/hm(Table 5). In view of the difficulty in carrying out low sowing rate in practice, it would be better to set the per hm seedling number at about 1.2 million and the ear number per plant at 3-4, when the combination technology is applied to high yielding fields. If this technology is applied to common fields,it may be advisable to keep the seedling number per hm at about 1. 5 million and the average ear number per plant at 3, on the basis of an earlier sowing date and a reasonable increase in nitrogen application.

以扬麦5号小麦为材料,研究主要栽培因子与主茎总叶片数、单株成穗数、每穗实粒数、千粒重、容重及花后干物质积累的关系。结果表明:提早播种、减少播种量、增施氮肥有利于增加主茎总叶片数、单株成穗数、每穗实粒数和花后干物质积累量,千粒重和容重虽有所下降,但最终仍获高产;氮肥施用量以基肥足、壮蘖肥少、穗肥适中为最宜。研究优选出了小麦每公顷产量达6000kg以上的3项农艺措施的最佳组合。

 
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