scholarly journals Statistical Studies on Various Characteristics of Crop Plants : VI. Varietal differences of a morphological complex characteristic of rice varieties when three nitrogen fertilizer levels at various levels of plant spacing put together

1969 ◽  
Vol 38 (4) ◽  
pp. 675-680
Author(s):  
Masaki HORIE ◽  
Iwao YAMAMURA ◽  
Toshio HOSOYAMA
Keyword(s):  
Nitrogen Fertilizer ◽  
Crop Plants ◽  
Plant Spacing ◽  
Rice Varieties ◽  
Varietal Differences ◽  
Complex Characteristic ◽  
Statistical Studies

Components of test weight of ten varieties of winter wheat grown with two rates of nitrogen fertilizer application

1975 ◽  
Vol 85 (3) ◽  
pp. 559-563 ◽  
Author(s):  
Fiona M. Pushman ◽  
J. Bingham
Keyword(s):  
Winter Wheat ◽  
Protein Content ◽  
Nitrogen Fertilizer ◽  
Ventral Surface ◽  
Fertilizer Application ◽  
Test Weight ◽  
Varietal Differences ◽  
Flour Yield ◽  
Packing Efficiency ◽  
Xylene Separation

SUMMARYVarietal and environmental factors which influence test weight were investigated in a field trial with ten varieties of winter wheat and two rates of nitrogen fertilizer. Varietal differences in test weight were correlated positively with the protein content of the grain and inversely with grain yield but they were not related to 1000-grain weight or to flour yield. Variation in test weight associated with varietal and environmental effects in protein content was due to differences in the density of the grain, as measured by displacement of xylene. Separation into density grades within a sample by a flotation method showed a similar relationship with protein content. There were also varietal differences in packing efficiency of the grain. In the case of Maris Huntsman a poor packing efficiency was considered to stem from morphological features of the floret and developing grain which lead to characteristic transverse folds in the ventral surface of the mature grain. For wheat grown in the United Kingdom, test weight may provide a useful guide to flour yield for samples of one variety but it is likely to be misleading for comparisons between varieties.

scholarly journals Growth and Yield of Lettuce (Lactuca Sativa L.) Influenced As Nitrogen Fertilizer and Plant Spacing

2017 ◽  
Vol 10 (06) ◽  
pp. 62-71 ◽  
Author(s):  
M. R. Hasan ◽  
A.K.M.M. Tahsin ◽  
M. N. Islam ◽  
M. A. Ali ◽  
J. Uddain
Keyword(s):  
Lactuca Sativa ◽  
Nitrogen Fertilizer ◽  
Growth And Yield ◽  
Plant Spacing ◽  
Lactuca Sativa L
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