就深耕法对水稻根系生长和分布的影响进行了讨论。
Effects of deep tillage on root growth and distribution of rice were discussed.
采用盆栽试验，研究土壤水分与水稻秧苗根系形态建成的关系。
The relations between soil water content and the root system formation of rice seedlings were studied with pot experiments.
目的探明不同耕作方式下杂交水稻根系特性及增产的机制。
To ascertain the root properties of hybrid rice and mechanism of increasing yield under different tillage system.
通过分析建立了水稻根系参数与产量之间的定量回归模型。
A quantitative regression model of relationship between the character parameters of roots and yield of rice was developed by data analysis.
根系活力下降，可溶性糖与可溶性蛋白质的含量减少，因而影响水稻种苗的正常代谢。
Besides, root activity, content of soluble sugar and soluble protein were reduced, too. So the normal metabolism in rice seedlings was affected significantly.
结果表明，较高的氮素水平促进根系生长，迅速提高水稻根干重，但同时降低根冠比。
The result is, high N-level can promote the root to grow, but the root cap ratio will comes down.
免耕栽培有利于水稻根系发育和在土壤中的分布，同时免耕大幅度提高水稻根系的吸收活力。
No-tillage cultivation improved the growth, development and distribution of rice root systems, and enhanced absorption activity of root systems as well.
旱种抑制水稻根系生长和地上部干物质积累，产量和水分利用率比淹水灌溉显著降低。
Compared with submerged irrigation, the growth of root, accumulation of above-ground dry matter, grain yield and water use efficiency were decreased significantly under dry cultivation.
采用琼脂培养和土壤培养试验研究了根系氧化能力不同的水稻品种磷、锌的营养状况。
Results of AGAR culture and soil culture indicated that the amounts of plaque iron on rice cultivars with different oxidizing power of roots were different.
研究还表明：在高温多雨的水田生态系统中，通过人控施肥调节、促进水稻根系发育，是夺取水稻高产措施之一。
Reseacrch also showed that one of the key measure to get hight yield of rice is to promote root system development though fertilizer application control.
采用土培试验研究了嘉花1号这种基因型水稻根系通气组织对其根表铁膜形成的影响。
Soil culture experiment was conducted to study the effect of rice root aerenchyma on root iron plaque by Jiahua 1 this kind of genotype rice.
因此，本文着力于开发微电极技术测定植物叶片的方法以及其在水稻根系硝态氮的吸收和利用方面的研究。
Hence, the thesis was set out to studying the using of ion selective microelectrode in rice leaf and extends its application in studying nitrate uptake and utilization in rice root.
提出控制根数量、适当增加分枝根数目和加深根分布是未来开展水稻根系育种、塑造水稻理想根型的基本方向。
It was supposed that proper root number, much branches and deep-root is a development direction of breeding for ideal type root system in rice.
高库容水稻株系抽穗期的单株根系活性高、单株根系总吸收面积和单株根系活跃吸收面积大。
Indica rice with large sink also had higher root activity per plant, larger root absorption or active absorption area.
根系QTL定位对深入研究根系遗传机制有重要作用。在水稻上，已利用不同群体定位了许多与根系性状相关的QTL。
QTL root positioning plays an important role in study of genetic mechanisms. In rice, many QTLs related with roots' characteristics are positioned using different groups.
覆草旱作的根冠比(0.116)显著大于常规水稻(0.087)，前者的根系呼吸强度是常规水稻的2.7倍。
Root to shoot ratio of upland rice (0.116) was remarkably bigger than that of paddy rice (0 087). Root respiration rate of the former was 2.7 times of the latter.
测定水稻幼苗根系的相对含水量、根系活力、丙二醛含量及抗氧化酶（SOD、POD、CAT、APX）活性。
Water content, root activity, MDA content and antioxidant enzymes (SOD, POD, CAT, APX) activity in rice seedling roots were determined.
采用自创的“三维坐标容器法”，研究了潮砂土、红壤土、水稻土对陆稻根系生长发育的影响。
The growth and development of upland rice root system were studied by three-dimensional coordinate container method.
鸭稻共作方式下水稻根系总长变化无明显规律，根系表面积与常规栽培方式下相比无显著差异。
There was not a significant difference in root surface area of rice by comparing with the control treatment.
1985年，研究了群体水培和大田栽培条件下水稻不同类型品种根系活力的叶龄进程。
In 1984-1985, the root activities with leaf-age-progress was investigated in different rice varieties cultivated in nutrient solution and in field.
结果表明。喷施植物动力2003的水稻秧苗粗壮，分蘖多，根系发达，各项指标均明显优于对照。
The result has shown that rice sprouts sprayed with plant dynamic force 2003 have stronger and more sprouts, and their roots develop more vigorous- ly. Each index is better than that of its control.
提出了未来水稻根系育种的一个方向，既适当控制根系的数量，增加根的平均长度，加深根在土壤中的分布，扩大根系的面积以及提高单位根量的根功能。
Adequate root number, deep root system, and efficient root activity per unit of root biomass will be needed for high-yield rice in the future breeding programs.
在水稻上，已利用不同群体定位了许多与根系性状相关的QTL。
It has been applied on rice to locate several root characteristics related QTL via different groups.
稍为高大韧水稻的根系活力也表现出前期高于对照，但后期低于对照。
SHTTR had high root vigor in the early grain filling period, and it was low in late grain filling period.
此外，化感水稻PI根系分泌物对脲酶、磷酸酶、蔗糖酶的活性具有促进作用，而对过氧化氢酶则呈抑制作用。
Moreover, PI increased the activities of urease, phosphatase and sucrase, but decreased the catalase activity in its rhizosphere.
通过模拟试验研究了水稻根系泌氧作用对水稻土磷素化学行为以及水稻吸磷的影响。
A simulated experiment was carried out to study the effect of O2 secretion of rice root on phosphorus behavior in the soil and phosphorus uptake by rice.
通过模拟试验研究了水稻根系泌氧作用对水稻土磷素化学行为以及水稻吸磷的影响。
A simulated experiment was carried out to study the effect of O2 secretion of rice root on phosphorus behavior in the soil and phosphorus uptake by rice.
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