The effect of PP333 applied at elongation stage on plant height and yield of indica-japonica hybrid rice was studied.
本文研究了拔节期施用多效唑对籼粳杂交稻的株高和产量的影响。
The yield components and grain filling characters of northern large panicle type super japonica hybrid rice Liaoyou 3072 were studied.
对北方大穗型超级杂交粳稻辽优3072进行了产量结构和灌浆特性的研究。
The relationship between the growth period, yield component of japonica hybrid rice 80 you 121 and accumulated temperature, light duration was studied.
对杂交中粳80优121在8个不同播期下的生育期、产量因素、理论产量与影响产量因素总积温、光照时数的相关研究。
So in this paper, from the point of view of practical application, the DSH and its stability of some core parent lines of japonica hybrid rice was invest.
作者从杂交稻的育种实践出发，采用在不同年份和地点进行分期播种和插秧的方法，对北方杂交粳稻核心亲本的播始历期及其稳定性进行研究。
The Biological characteristics of three parents (Wanhui 9, Dangxuanwan 2A and 80—4A)of japonica hybrid rice were studied with sowing by different seasons in the field.
对三个粳型杂交水稻亲本皖恢9号、当选晚2号A和80—4A进行了分期播种试验和开花习性观察。
In order to study the physiological base on super high yield of the northern japonica hybrid rice and offer breeding theory about large-panicle northern japonica hybrid rice.
为了研究北方大穗型杂交粳稻超高产的生理基础，为选育大穗型的北方杂交粳稻提供育种理论。
Photosynthetic characteristics in indica-japonica hybrid rice Yayou 2 based on japonica rice 02428, which is a valuabled germplasm in the breeding of indica-japonica hybrids.
因此，在配组具有优良光合性状的籼粳杂交稻品种时，广亲和高光效种质02428是一个值得利用的材料。
Genetic differentiation and indica component degree analysis were conducted on the main parents of japonica hybrid rice in the northern China by simple sequence repeats (SSR).
利用微卫星(SSR)分子标记对北方杂交粳稻骨干亲本进行了遗传差异鉴定和籼性程度分析。
The amount of demand for N, P and K, especially the ratios of P and K requirement of super high yielding japonica hybrid rice plant were higher than those of high yielding rice.
在养分积累、分配与利用上，超高产条件下，稻株对N、P、K三要素的吸收量增加，特别是P、K的吸收量增加明显；
Root developing trends and morphological characters in different growth stages were studied with japonica hybrid rice combination and its retainer and restorer and conventional varieties.
以粳型杂交稻及其亲本和常规品种为材料 ，在不同生育时期对其根系生长和形态特征进行比较研究。
The hybrid japonica rice and conventional japonica rice in the regional trials of Jiangsu province from 2004 to 2005 were chosen to compare their major agronomic and quality characters.
根据2004-2005年江苏省杂交粳稻和常规粳稻区域试验结果，比较了它们的主要农艺性状和品质性状。
Compared with inundatory condition, aerobic condition retarded the formation of aerenchyma of hybrid rice roots and made the cortex sclerenchymatous cells array loosely in conventional japonica root.
与淹水条件相比，旱作条件下杂交稻根通气组织形成较迟，常规粳稻根皮层厚壁细胞排列较疏松。
Reducing chalky grain and increasing head rice rate were important in japonica rice quality improvement. (3) The quality of indica hybrid rice was improved significantly.
垩白、整精米率和直链淀粉含量是籼稻品质改良的重点，垩白和整精米率是粳稻品质改良的重点。
Reducing chalky grain and increasing head rice rate were important in japonica rice quality improvement. (3) The quality of indica hybrid rice was improved significantly.
垩白、整精米率和直链淀粉含量是籼稻品质改良的重点，垩白和整精米率是粳稻品质改良的重点。
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