scholarly journals Statistical Studies on Various Characteristics of Crop Plant : IV. Varietal differences of a morphological characteristic of rice plants when three plant-spacing at various levels of nitrogen fertilizer put together

1967 ◽  
Vol 36 (2) ◽  
pp. 173-178
Author(s):  
Masaki HORIE ◽  
Iwao YAMAMURA ◽  
Toshio HOSOYAMA
1975 ◽  
Vol 85 (3) ◽  
pp. 559-563 ◽  
Author(s):  
Fiona M. Pushman ◽  
J. Bingham

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.


1954 ◽  
Vol 4 (1) ◽  
pp. 51-53 ◽  
Author(s):  
Yasuji ASADA ◽  
Shigeyasu AKAI ◽  
Masao FUKUTOMI

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

2016 ◽  
Vol 47 (6) ◽  
Author(s):  
Alubaidi & et al.

This experiment was conducted at the farm of field crop department, College of Agriculture, University of Baghdad during two summer seasons (2010 and 2011) in order to know the response of cotton var. Lashata to nitrogen levels and spacing between holes. A randomized complete block design under arrangement of split plot with four replications was used. The plant spacing; 10, 20 and 30 cm between holes and 75 cm between rows considered as main plots, while three nitrogen levels (150, 200 and 250 Kg N.ha-1) are considered as sub plots. The results showed that using 10 cm between hills were significantly superior in boll weight (3.69 and 4.26) gm.boll-1, seed cotton yield (3.03 and 3.6) t.ha-1 and lint yield (1.13 and 1.30) t.ha-1 in both seasons 2010 and 2011 respectively. While, 30 cm spacing significantly superior in number of open bolls (12.10 and 13.6) bolls.plant-1 and ginning percentage (39.05 and 37.44)% in both seasons respectively. The nitrogen fertilizer 250 kg N ha-1 was significantly superior in dehiscence bolls number, seed cotton yield, lint yield and ginning percentage in both seasons 2010 and 2011 respectively. It can be concluded that 'using 10 cm spacing between holes with 250 kg N ha-1 to achieve highest seed cotton yield.  


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