另一种理论提出粳稻和籼稻这两种主要的水稻亚种是在亚洲不同地区分别被培育的。
Another theory proposes that the two major sub-species of rice - Oryza sativa japonica and O. sativa indica - were domesticated separately and in different parts of Asia.
研究表明粳稻和籼稻大约在3900年前才由同一种水稻分化成两种不同的亚种。
The study indicates that the japonica and indica sub-species split apart from each other about 3, 900 years ago.
研究人员发现，籼稻和粳稻彼此的相同点多于它们各自与野生水稻的相似处。
The researchers found indica and japonica have more in common with each other than either has with wild rice.
优质、丰产、抗病、广适的籼稻新品种的选育；诱变育种；水稻重要性状的遗传学研究及基因定位与克隆。
Breeding of good quality, high yield, disease resistance and wide adaptability Indica rice cultivar, mutation breeding, and molecular genetics and gene mapping and clone of some rice traits.
关于水稻品质性状的研究在我国对籼稻研究比较深入，对粳稻研究报道较少。
There are many reports on the research of quality traits in Indica rice but relatively few in Japonica rice.
目前南方水稻产区的劣质米主要来自高垩白度的早籼稻。
Presently, the poor quality rice in southern China mainly comes from early indica rice with more chalkiness.
以16种重要的籼稻和粳稻栽培品种为材料，研究了影响农杆菌转化水稻频率的有关因素。
The factors influencing the frequency of rice transformation mediated by Agrobacterium have been investigated by using 16 commercially important indica and japonica rice cultivars or lines.
以杂交籼稻特优559为材料，探讨了高温胁迫对水稻灌浆期剑叶中有关生理特性和籽粒灌浆速率的影响。
The effects of high temperature on grain filling rate and some physiological indexes in flag leaves in hybrid rice Teyou 559 were studied.
对籼稻、粳稻和爪哇稻3个亚种的8个水稻品种开展米饭质地研究。
Using RHEOLOGRRPH MICRO (cookedrice texture analyzer), the cookedrice texture of 8 varieties within 3 rice subspecies was analyzed by various methods for cooking pretreatment.
我们利用网上公布的水稻基因组的测序结果，经过数据处理和分析，构建了一个水稻亚种粳稻和籼稻间的DNA多态性数据库。
Through the downloading of the rice sequence and the data analysis, a DNA polymorphism database between japanica and indica was constructed.
培育中等或略微偏低直链淀粉含量的籼稻新品种或杂交稻亲本已成为水稻遗传育种的最重要目标之一。
Thus, breeding indica varieties or hybrid parents with intermediate or lower amylose content becomes one of the most important objects in rice genetic breeding.
而具有亲粳性和亲籼性的重组自交系可作为育种中间材料或与粳或籼稻配组，筛选出优势强的组合用于水稻生产。
The Indica-compatible and Japonica-compatible IRLs can be matched with Japonica rice or Indica rice to select good combinations with strong heterosis.
而具有亲粳性和亲籼性的重组自交系可作为育种中间材料或与粳或籼稻配组，筛选出优势强的组合用于水稻生产。
The Indica-compatible and Japonica-compatible IRLs can be matched with Japonica rice or Indica rice to select good combinations with strong heterosis.
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