千粒重

同一玉米品种，体积较大或千粒重较高的种子，其活力较高，不同玉米品种间体积大小和千粒重的高低与其种子活力大小之间并无明显的关系。

To the same maize variety , the volume bigger and the weight of a thousand seeds higher , the seed vigor higher , To the different maize variety , there was not obvious relations between maize seed vigor and volume size or weight of a thousand seeds weight .

从产量结构分析，穗数、穗粒数、千粒重均增加，从而增高单位面积产量

Analyzed from the output structure , the number of spikes , spike grains and the weight of a thousand seeds increased to raise the yield of unit area

另外，吐丝后喷施BR亦有增加千粒重的效果。

In addition , 1000-grain weight also increased by spraying BR after corn silk .

开花早的品种灌浆速率（R，R（max））高，灌浆持续时间（T）较长，千粒重也高。

Varieties which flowered earlier had higher grain filling rate ( R and Rmax ), longer duration ( T ) and higher grain weight .

水稻千粒重和垩白粒率的QTL及其互作分析牡荆叶和牡荆油的薄层色谱鉴别研究

QTL Mapping and Interaction Analysis for 1000-Grain Weight and Percentage of Grains with Chalkiness in Rice

Mo处理对种子的糖分积累过程表现出促进作用，成熟种子中的总糖含量高于对照，对种子的粗蛋白积累产生负面影响，并使种子千粒重下降。

The Mo treatment had higher sugar content and lower protein content than the control , with the thousand-seed weight comparatively lower .

不同肥料处理对作物的千粒重影响差异不显著（P0.05），但它们与对照组都有显著差异（P0.05）。

The effect of different fertilization on the 1000-seed weight of the crops was not significant , but there was significant difference with the control ( non-fertilizer ) .

品质性状间相比，基因型（G）对籽粒硬度、环境（E）对千粒重、G×E互作对SDS沉淀值的影响较大。

Effect of genotype on grain hardness , effect of environment on thousands kernel weight and effect of G × E interaction on SDS sedimentation value were the greatest among the four quality traits .

在株高、分蘖数、分蘖角度、剑叶角和千粒重这几项农艺性状上，秀水11的株高和千粒重均在LSD（0.05）水平上与其它三种水稻存在差异。

The plant height and kernel weight of Xiushui 11 showed significant difference from another three species .

借助高密度的遗传连锁图谱定位了控制水稻粒长、粒宽、长宽比和千粒重的QTL。

With high-density genetic linkage map , we mapped some QTLs which influence grain length , grain width , aspect ratio and grain weight in rice .

FACE处理使单位面积穗数、每穗粒数及千粒重分别比对照（CK）增加17.8、2.9、4.8%，均达到显著或极显著水平；

Ears per square meter , grain number per ear and 1000-grain-weight in FACE , average value of the data in 2001-2002 and 2002-2003 , significantly increased 17.8 , 2.9 , and 4.8 percent , respectively .

结果表明，参试品种（系）的平均籽粒硬度、籽粒蛋白质含量、千粒重和SDS沉淀值依次分别为44、11.5%、37.8g和10.3mL；

The result showed that grain hardness , grain protein content , thousand kernel weight and SDS sedimentation value were 44,11.5 % , 37.8 g and 10.3 mL , respectively .

纯N水平在360kg·hm-2时，增穗作用不显著，反而显著降低每穗粒数和千粒重。

Grain number per panicle and 1 000-grain weight were decreased significantly in the treatment with 360 kg / hm2 nitrogen fertilizer .

这些性状的变化密切关系到抗旱指数（DI），除千粒重、根冠比的变化率与DI的相关性未达到显著水平以外，其余性状的变化率与DI达到了显著或极显著相关。

These characteristics were closely related to the drought index ( DI ), the change ratio of above characteristics were significant closely related to the DI expect for 1 000 grain weight .

与原始亲本相比，轮选品系的平均株高降低近20cm，生物量、籽粒产量、穗粒数、千粒重、收获指数等重要农艺性状均得到显著改进。

The mean plant height of the recurrent selection strains was about 20 cm shorter than that of their original parents .

各分量对总决定度的相对贡献仍以每穗粒数千粒重667m2穗数。

The relative contribution rate of each component is also grain number per spike 1 000-grain weight tiller number .

Cd处理后每盆穗数和每穗颖花数减少是减产的主要原因，结实率和千粒重在Cd处理与CK间无显著差异。

The reduction in grain yield was mainly attributed to the reduction in panicles per pot and spikelets per panicle . The differences in seed-setting rate and 1000-grain weight were not significant between the Cd treatment and CK .

与CK相比，秸秆还田（NPK+S）处理的小麦千粒重、面团抗延伸性略有提高，其它品质指标则有不同程度的下降。

Contrast to CK , the treatment of crop straw return to field ( NPK + S ) increased the 1000-seed weight and dough tenacity ability and decreased the other characters in a certain degree .

在BC2F5群体中，结合单标记分析和复合区间作图方法，共定位4个抽穗期、3个株高、5个每穗颖花数、2个千粒重和1个单株产量QTL。

15 QTLs were detected for the yield related traits such as heading date , spikelets per panicle , grain weight , and plant height using single marker analysis and composite interval mapping .

与可育株相比，其穗子较长，小穗数多，但千粒重较低，开花一般迟2～4d，而早花父本衍生的后代花期也早，迟花父本后代花期较迟。

Compared with fertility , the sterility showed longer spike , more spikelet , lower kernel weight and 2 ~ 4 days later flowering related to the male backcross parents .

结实率是影响穗重型水稻（V7）产量的主导因子，施氮时期对其结实率影响差异显著，对千粒重影响差异不显著；

Seed rate is the leading factor of big-spike rice ( V7 ), whereas 1000-grain weight is the leading factor of multiple - spike rice ( V10 ) .

黄淮麦区源库协调的小麦品种千粒重应为38～40g。

1000-grain weight of cultivars adaptable to the Huang-huai wheat producing area should be in the range of 38 to 40 grams .

千粒重增加1.6g；

The weight of one thousand grains increased 1.6 g ;

结果CIMMYT品种穗数和穗粒数多，千粒重中等，具有广泛适应性，比中国品种具有更高的产量优势；

【 Result 】 CIMMYT cultivars were characterized by more spikes and grains per spike , medium thousand kernel weight , and high grain yield with broad adaptability .

结果表明：歪头菜的种子长约5mm，扁圆形，灰绿色或黑褐色，千粒重为21310g，属于中小粒种子；

The result showed that the seeds are green-gray or brown-black , about 5 mm long , oblate . The weight per thousand-granule was 21.310 g. And they are minimal-medium seeds .

在总施氮量较少的情况下（本试验为10kg／mu），于倒4叶、倒2叶期等量分次施用穗肥，穗数增多，同时提高千粒重和结实率，获得较高产量。

As total amount ( 10kg / mu ) was less , on time of 4th and 2nd to flag-leaf increased panicles , and enhanced kilograin weight and seed setting percentage , got high yield .

O3胁迫条件下小麦籽粒灌浆期缩短，平均灌浆速率下降，导致千粒重降低，这是O3胁迫处理产量降低的主要决定因素。

Under E-O3 treatment , grain filling period was shortened , the average filling rate decreased , and 1000 grain weight decreased , which was the main factor resulting in the decrease of grain yield . 2 .

试验结果表明，SP1代种子千粒重、单株籽粒重、分枝穗数均比对照明显增加。

The results showed that the kilograin weight , seed weight of single plant and number of branch ears in SP1 of the two species were significantly higher than those of the control respectively .

通过复合区间作图法，对正常磷条件下、磷胁迫条件下及相对条件下的产量、株高、分枝数、第一分支高、地上部干重和千粒重等6个性状进行QTL定位。

By the method of Composite Interval mapping , the six traits were QTL mapping , including yield , plant height , branch number , first branch height , upper dry weight and thousand seed weight under normal P and deficiency P condition .

IPT基因对产量构成因素的效应变异幅度最大的是穗实粒数，然后依次是单株穗数、结实率和千粒重。

Of the yield components , filled grains numbers per panicle showed the most variant extent of effect by IPT gene , followed by panicles per plant , seed set ratio and 1000-grain weight .