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ear number
The results of genetical analyses of data for the characters ear number, grain number per ear, 1000 corn weight and straw length are presented.
      
Several yield components were measured on equal numbers of plants per family: grain yield (GY), ear number (ENO), kernel number (KNO), and 100-kernel weight (HKWT).
      
A major QTL for ear number per plant was identified on chromosome 6B which was negatively co-localised with leaf fresh weight, peduncle N, grain N and grain yield.
      
At all stages moderate and severe water stress decreased plant height, leaf area, ear number, 1000-grain weight, grain yield and water-use efficiency.
      
It is remarkable that a variety-ear number interaction manifests itself for both mentioned data: as far as Jufy is concerned the first developing ear produces least, whereas in Orca and Peko it produces most.
      
Data on tiller number at ear emergence and ear number and grain yield at harvest were also obtained.
      
The inheritance of flag leaf area showed some evidence of over dominance and non-allelic interaction while ear number was mainly under additive genetic control with partial dominance.
      
Highly significant associations were found between flag leaf area, ear number and grain yield per plant.
      
Seed yield of the cultivars was not associated with ear number or total dry matter yield of the seed crop.
      
The selection process employed other attributes that included maintaining a constant anthesis date (AD) and, under drought, shortening the anthesis-silking interval (ASI) and increasing ear number per plant (EPP).
      
Levels of male sterility of thePCMS line increased at sparse planting, because tiller(ear) number per plant increased at low seedingdensity and late-appearing ears tended to exhibithigher levels of male sterility than early-appearingears.
      
We detected 36 QTLs affecting yield, anthesis-silking interval, male flowering, ear number, and plant height in maize.
      
Among the 7 genotypes examined that have different prolificacy levels, there was a general correlation of slower stem elongation at middle growth stages and larger ear number.
      
While shoot dry weight, ear number and grain yield of Al-tolerant genotype (ET8) were not affected by subsurface soil acidity, liming subsurface soil increased shoot weight and grain yield of Al-sensitive genotype (ES8) by 60% and ear number by 32%.
      
For moderate to good yields, the relationship between TRL and ear number appears to be conservative at between 30 to 35 m of TRL per ear.
      
Furthermore, at any given sowing date, a reduction in seed rate affected ear number per m-2 more than it did TRL or GAI.
      
In our experiments, a reduction is seed rate affected ear number relatively more than it did GAI and TRL.
      
 

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