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photosynthetic trait
相关语句
  光合特性
     Wheat population with high grain-leaf area ratio was studied mainly from their growth development stage, growth dynamic of leaf area and main stems and tillers, physiological trait of top leaf in the senescence stage, chlorophyll content and photosynthetic rate. Photosynthetic trait and distributing dynamic of dry matter was analyzed and it concluded that crop population of high grain-leaf area ratio had higher economic coefficient and greater increasing production potential.
     本文主要从生长发育时期、叶面积和茎蘖等的生长变化动态、衰老期间冠层叶片的生理特性、叶绿素含量和光合强度等方面对高粒叶比小麦群体进行了综述,分析了高粒叶比小麦群体的光合特性以及干物质积累的分配动态,认为粒叶比高的群体,其经济系数较高,具有较高的增产潜力。
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  相似匹配句对
     Photosynthetic pigmemts
     光合色素
短句来源
     Photosynthetic unit
     光合单位
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     The trait and advantage of .
     分别从其特点、优势以及ASP.
短句来源
     Effects of Plant Density on Photosynthetic Character and Yield Trait in Summer Corn
     密度对夏玉米品种光合特性和产量性状的影响
短句来源
     Photosynthetic ability study of leafy maize germplasm and genetic anylisis of its leafy trait
     Leafy玉米种质的光合性能研究及多叶性状的遗传分析
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The photosynthetic rate,leaf area,dry matter productions,leaf orientation value(LOV)andgrain yield were measured and investigated in a diallel cross of six inbred lines of corn.The resultsindicated that the leaf area was significantly and positively correlated with the dry matter produc-tions and grain yield;photosynthetic rate was significantly correlated with biological products and grainweight.The significantly positive relation of relative growth rate of leaf with relative growth rate ofdry matter...

The photosynthetic rate,leaf area,dry matter productions,leaf orientation value(LOV)andgrain yield were measured and investigated in a diallel cross of six inbred lines of corn.The resultsindicated that the leaf area was significantly and positively correlated with the dry matter produc-tions and grain yield;photosynthetic rate was significantly correlated with biological products and grainweight.The significantly positive relation of relative growth rate of leaf with relative growth rate ofdry matter products,biological products and 1000-grain yield were also observed.LOV showed nosignificant correlation with dry matter productions or grain yield in this experiment.The multipleregression analysis showed that both photo synthetic rate and leaf areas affected the dry matter pro-duction and grain yield significantly.But the effects of leaf areas were greater than photosyntheticrate.Analysis of the combining ability of photosynthetic traits showed that the general combining abilityand specific combining ability of photosynthetic rate were of highly significance.The general combi-ning ability and specific combining ability of leaf area and LOV were also of highly significance,andthe former were much greater than the latter.The general combining ability and specific combining ability of photosynthetic traits and yieldtraits of six inbred lines and their crosses were estimated and analysed in this paper.

本试验在不同时期测定和调查了由6个自交系组配的一玉米双列杂交中各组合的光合速率、叶面积、叶向值、干物质生产和籽粒产量等性状。试验结果表明:玉米杂交种的叶面积与干物质生产、籽粒产量均有显著正相关;叶面积相对增长率与干物质相对增长率、生物学产量及籽粒产量间都具有显著正相关;光合速率与生物学产量、千粒重间具有显著正相关。多元回归分析表明:光合速率和叶面积对玉米杂交种的干物质生产和籽粒产量均有一定作用,而叶面积的作用更大一些。对光合性状的配合力分析表明:光合速率以及叶面积的一般配合力和特殊配合力均非常显著,但一般配合力效应大于特殊配合力;在叶向值中,一般配合力效应远远大于特殊配合力。此外,还估计了6个自交系各性状的一般配合力和其杂交组合的特殊配合力效应,并对结果进行了分析和讨论。

Photosynthetic traits of rice (Oryza sativa, L.) were measured and compared in two different ways of nursery management, the dry nursery and the wet nursery. The results indicated that both the single leaf and canopy of the rice seedling in the dry nursery had a higher net photosynthetic rate (Pn rate), a lower light saturation level, and the variabilities of light saturation and light compensation levels under high temperature and drought conditions were less than those in the wet nursery showing...

Photosynthetic traits of rice (Oryza sativa, L.) were measured and compared in two different ways of nursery management, the dry nursery and the wet nursery. The results indicated that both the single leaf and canopy of the rice seedling in the dry nursery had a higher net photosynthetic rate (Pn rate), a lower light saturation level, and the variabilities of light saturation and light compensation levels under high temperature and drought conditions were less than those in the wet nursery showing an increasing trend towards the tolerances to heat and drought stress.Under conditions of natural day light total photosynthetic time per day increased. The leaf area index(LAI) and soil water content were also measured. The results indicated that the optimum LAI prior to transplanting was 3 to 5 under the dry nursery and the favorable water content was not less than 66%.

在盆栽条件下,研究了旱育秧和湿育秧苗的光合性能,结果表明,旱育秧苗群体的光合强度均较高,光饱和点降低,旱秧抗高温和土壤干旱的能力增强,总光合时数增加。通过测定叶面积系数和土壤含水量,提出旱育秧成秧期适宜的叶面积系数为3~5,秧田土壤的田间持水量不低于66%。

Effects of transparent polyethylene film mulching on nitrogen andphosphorus absorption and photosynthetic traits were studied in fieldand pot conditions. By mulching, the plant nutrition was improved and the absorptionof nitrogen and phosphorus was increased. Nitrogen and phosphoruscontent (%) was lower in the whole plant, stem, ear and grain, buthigher in the leaves. Mulched plants also had a higher absorptiverate of nitrogen and phosphorus before earing, but a lower absorptiverate after earing. The chlorophyll...

Effects of transparent polyethylene film mulching on nitrogen andphosphorus absorption and photosynthetic traits were studied in fieldand pot conditions. By mulching, the plant nutrition was improved and the absorptionof nitrogen and phosphorus was increased. Nitrogen and phosphoruscontent (%) was lower in the whole plant, stem, ear and grain, buthigher in the leaves. Mulched plants also had a higher absorptiverate of nitrogen and phosphorus before earing, but a lower absorptiverate after earing. The chlorophyll content (%) in the leaves beforeoverwinter and after jointing and photosynthetic rate in flag leaveswere apparently increased, but the chlorophyll content (%) atunmulching stage and photosynthetic rate at the joniting stage wasreduced. Soluble sugar content (%) in mulched plants at themulching stage was reduced, but soluble sugar content (%) wasincreased after unmulching.

在大田及盆栽条件下,研究了覆膜对冬小麦(Triticum aestivum L.)氮磷营养元素的吸收及某些光合特性的影响。结果表明,覆膜增加了植株对氮磷营养元素的吸收量。由于“生长稀释”效应,使整株氮磷含量下降,但提高了叶片氮磷含量,降低了茎、穗及籽粒氮磷含量。覆膜提高了抽穗期之前植株的氮磷累积吸收百分率和吸收强度,但降低了抽穗期以后的氮磷累积吸收百分率和吸收强度。覆膜还提高了越冬前和拔节期以后的叶片叶绿素含量及旗叶的光合强度,但降低了揭膜期叶片叶绿素含量及拔节期活动中心叶的光合强度。盖膜期间植株体内可溶性糖含量显著降低,但在拔节期以后,覆膜可显著提高植株体內可溶性糖含量。

 
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