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YIELD STUDIES IN OATS
Author(s) -
TINCKER M. A. H.,
JONES MARTIN G.
Publication year - 1927
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1927.tb07020.x
Subject(s) - germination , sowing , husk , biology , water content , caryopsis , moisture , agronomy , horticulture , dry weight , seedling , botany , materials science , geotechnical engineering , engineering , composite material
Summary. A series of correlation studies has been carried out between the seed characteristics and early growth data of a number of Record oats samples; many coefficients of correlation obtained gave values of no biological significance. The influence of “outlying” readings had to be carefully considered as the number of readings was limited. For this purpose dot charts were employed as well as mathematical coefficients. The results can be summarised as follows:1 Generally the total germination figures in a sand test were correlated with field establishment, but within the narrow germination range 85–100 per cent. no correlation with establishment was found. 2 The amount of available food in the seed as measured by the average dry weight of the caryopses influenced the size and weight of the seedlings produced. 3 The moisture content of the grain was negatively correlated with the rate of germination, indicating that samples stored with a high water content did not germinate well. 4 The percentage husk bore no relation to germination. 6 Ten weeks after sowing the mass of the plants obtained from a given sowing depended primarily upon the number of plants established. Although tillering was well advanced plants possessing additional space did not compensate for low establishment figures at this stage by increased growth. 6 When the grain was heated for 15 minutes at 75°C. those samples containing a high moisture content suffered more than well dried samples. Indications were also obtained that the following type of sample was particularly susceptible to such injury—artificial heating— ( a ) a rapidly germinating sample, ( b ) a thin‐husked sample, ( c ) a sample with heavy grain.