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低穗位
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  “低穗位”译为未确定词的双语例句
     As to the character's beritability from M_2 to M_3, all materials got a imilar trend, i. e. p least height, ear height and ear row had a higheat heritability followedby ear leaf width, ear length, sten diameter, ear leaf length and tassel branch.
     M_2代刭M_3代性状遗传力各材料趋势一致,以株高、穗位高、穗行数遗传力较高,茎周长、穗位叶长、雄穗分枝数遗传力较低,穗位叶宽、穗长遗传力居中。
短句来源
  相似匹配句对
     TRANSDUODENAL LOW CHOLEDOCHODUODENENOSTOMY
     经十二指肠胆总管十二指肠吻合术
短句来源
     main ear is short and the rate of fruit is low below 20cm;
     于20cm,较短,结实率;
短句来源
     The Surgery for Low Rectal Cancer
     直肠癌的外科手术
短句来源
     The application of plenty nitrogen fertilizer at bell stage in maize made plants shorter, spike height lower, which is good for lodging resistant.
     玉米在大喇叭口期重施氮肥,植株矮,,利于抗倒伏。
短句来源
     Increasing tiller-bearing percent of main crop to improve the quality of main crop colony is beneficial to sprouting and growing of lower-nodal axillary buds.
     提高头季稻群体质量和成率,有利于腋芽萌发与生长。
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The resistance of seven maize varieties to sheath blight was observed by usingartificial inoculation in the field.Experiments have shown:they are susceptible to sheathblight,their disease index is over 45%,but there are differences among varieties in resis-tance.The resistance is closely related to the height of ear segment.The coefficient of corre-lation between disease index(y1)and the height of ear segment(x)is 0.966**and their rela-tionship is y1=126.04-0.66x.The cofficient of correlation between the height...

The resistance of seven maize varieties to sheath blight was observed by usingartificial inoculation in the field.Experiments have shown:they are susceptible to sheathblight,their disease index is over 45%,but there are differences among varieties in resis-tance.The resistance is closely related to the height of ear segment.The coefficient of corre-lation between disease index(y1)and the height of ear segment(x)is 0.966**and their rela-tionship is y1=126.04-0.66x.The cofficient of correlation between the height of ear seg-ment(x)and tho reduction of a thousand-grain weight(y2)is 0.821*,their relationship is bythe following expression,y2=0.63x-77.76.So to select a fine variety highly-resistant tosheath bight is very important.Therefore a great attention should be paid to controllingmaize sheath blight when lowear segment varieties are recommended in the areas where maizesheath blight are disastrous.

通过田间人工接种对鄂西山地玉米区7个玉米品种进行抗纹枯病观察,结果表明:7个品种病指均在45%以上,无高抗品种,但品种间存在着抗性差异,抗性与穗位节高度有密切关系。穗位节高(X)与病情指数(y1)的相关系数,r=0.966,回归方程式为y1=126.04—O.66X。病株的穗位节高(X)与千粒重降低的克数(y2)的相关系数r=0.821,回归方程式为y2=0.63X—77.76。穗位节高度是选育抗纹枯病品种的一个重要指标。在纹枯病高发地区推广低穗位节的品种时应加强对纹枯病的防治

The main agronomic traits of maize tropical population Mo 962 were thoroughly analyzed. The results showed that the population was richer in genetic basis than in genetic variability, had high resistance to diseases and stress, and was high in yield. When the grain yield of the population was improved, there was little effect on selecting 100kernel weight, but selecting ear diameter was not affected by other traits. The main selection goal of the population is lower ear height, longer ear and high rate of seed...

The main agronomic traits of maize tropical population Mo 962 were thoroughly analyzed. The results showed that the population was richer in genetic basis than in genetic variability, had high resistance to diseases and stress, and was high in yield. When the grain yield of the population was improved, there was little effect on selecting 100kernel weight, but selecting ear diameter was not affected by other traits. The main selection goal of the population is lower ear height, longer ear and high rate of seed yielding.

对热带玉米群体墨962主要农艺性状进行了综合分析,结果表明:墨962群体遗传基础较遗传变异丰富,抗病、抗逆性强,丰产性突出.在进行群体籽粒产量改良时,百粒重的选择意义不大,而穗粗不受其他性状选择的干扰.在墨962群体的利用方面,应注重低穗位、长穗、高出籽率的选择.

20 hybrids derived from incomplete diallel cross and their parents were used as materials to analyze the correlation between the traits of plant ear and the ear moisture loss rate of maize. The results showed that there were significant differences between varieties in the ear moisture loss rate,so varieties with high ear moisture loss rate could be selected through genetic improvement in breeding process. Because its heritability was lower,it could not be directly selected in earlier generation. The ear moisture...

20 hybrids derived from incomplete diallel cross and their parents were used as materials to analyze the correlation between the traits of plant ear and the ear moisture loss rate of maize. The results showed that there were significant differences between varieties in the ear moisture loss rate,so varieties with high ear moisture loss rate could be selected through genetic improvement in breeding process. Because its heritability was lower,it could not be directly selected in earlier generation. The ear moisture loss rate in the field was mainly affected by the plant traits. The genotypes with lower plant height,higher ear height,more green leaves in flowering time,higher water content in stalk and lower water content in leaves would redound to the loss of ear moisture. The results also indicated that there were some correlation between ear moisture loss rate in harvest and some traits related ear,for example,negative correlation with ear diameter and rows number per ear,positive correlation between ear diameter and rows per ear. Therefore,the ears with fewer row numbers per ear were thinner in ear diameter and could increase its loss of ear moisture.

以不完全双列杂交组配的20个杂交组合及其亲本为试材,分别研究了植株性状、穗部性状与玉米果穗脱水速率的相关性。结果表明,品种间果穗脱水速率存在着显著差异,通过人工选择鉴定可以培育出符合育种目标的新品种。果穗脱水速率的遗传力较低,所以不能在早期世代对该性状进行直接选择。田间果穗脱水速率主要受植株性状的影响,株高偏低、穗位较高、开花期绿叶数较多、茎秆含水量较高,叶含水量较低的基因型有助于果穗快速脱水;同时果穗脱水速率与穗粗、穗行数呈极显著负相关,穗粗与穗行数呈极显著正相关,即穗行数越少,穗越细的果穗更利于籽粒脱水。

 
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