The microclimate environment in population of erect panicle type and curved panicle type rice is determined.
测定了直立穗型和弯曲穗型水稻群体的小气候环境。
It perhaps was the physiological reason that the ability of the high dry matter production of the erect panicle variety.
这可能是直立穗型品种抽穗后物质生产能力强的生理原因。
Lots of nematodes were found in rice with small grains and erect panicle but there was no nematode in normal grain seeds.
经室内检测，发现“小穗头”谷粒中含有大量的线虫，而健康稻穗的谷粒中不含线虫。
There are significant differences in different directions for erect panicle type, while the curved panicle type is not different.
在不同行向直立穗型品种差异明显，弯曲穗型品种差异不大。
The ear and upper internode of the erect panicle type were shorter, so its height was obviously lower than that of the curved one.
直立穗型穗和上部节间较短，因此株高明显低于弯曲穗型；
The high-yield and high-quality in erect panicle type Japonica line could be selected by anther culture or group selective breeding.
通过花培和组群筛选法均能较快地获得直穗型高产优质粳稻品系。
The integral polished rice rate of the high rice quality erect panicle type Liaojing 294 was higher than not shading treatment in process quality.
在加工品质上，遮光使直穗优质米品种辽粳294的整精米率明显高于未遮光的处理，对其它类型品种则无显著影响。
The recent research advances on erect panicle japonica varieties was summarized, and the characteristics of erect panicle japonica varieties were analysed.
本文综述了国内外有关直立穗型粳稻品种的研究现状和进展，并分析了直立穗型粳稻品种存在的优缺点。
So the erect panicle type population has a bigger dry material production capacity and higher biological yield, these are the physical basis of high economic yield.
因此，直立穗型水稻群体物质生产能力较强，生物产量较高，这是其最终经济产量较高的物质基础。
The reasons were as follows: firstly, the varieties with erect and semierect panicle were dwarf with short basal internodes, which increased their lodging resistance;
主要原因在于：直立、半直立穗型品种株高偏矮，基部节间短，更有利于抗倒；
In the same fertilizer condition, the amount of dry matter production after heading of erect panicle variety was clearly higher than that of the curved panicle variety.
在相同肥力下，抽穗前两品种的物质生产差异不大，但抽穗后直穗型品种的物质生产明显高于弯穗型品种。
Differences in grain shape among the grains at different positions between the cultivars with erect panicle type and the cultivars with curved panicle type were studied.
以直立穗型和弯曲穗型水稻品种为材料，研究了稻谷粒形在穗上不同部位和不同粒位籽粒间的分布及其差异。
In general, rice varieties with erect and semierect panicle from northern China had smaller lodging index and stronger lodging resistance than those with curved panicle.
但从总体水平分析，北方稻区直立、半直立穗型粳稻品种比弯曲穗型品种倒伏指数小，抗倒性好。
The typical erect panicle rice variety Shennong 265, and semi-erect panicle rice variety Liaojing 294 were used to compare dry matter accumulation, absorption and use efficiency of potassium.
选用典型直立穗型水稻品种沈农265和半直立穗型品种辽粳294为试材，研究两品种干物质积累、钾素吸收和利用效率的差异。
The yield of had a positive relation with the spikelets per panicle of erect type, and with the panicles of curve type.
直立穗型品种对产量起正向作用的是穗粒数和千粒重，弯曲穗品种对产量起正向作用的是穗数。
The most distinctive feature of the varieties is their erect heavy panicle and substantial biomass production.
这些品种的最大特点是直立大穗型，生物产量高。
The most distinctive feature of the varieties is their erect heavy panicle and substantial biomass production.
这些品种的最大特点是直立大穗型，生物产量高。
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