Statistical Studies on Various Characteristics of Crop Plants : VIII. Varietal differences of morphological complex characteristic of two-rowed barley varieties when three planting spacing levels were put together
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According to the line previously paper (5), studies on the varietal differences of a morphological complex characteristic of two-rowed barley varieties were performed with the data from three plant spacing levels being put together, and plant spacing levels in this experiment were determined by seeding rate, which were reported in previously paper (5). The present results were as follows: (1) A morphological complex characteristic of each variety in this experiment can be shown by two principal components. These indices were as follows; X<SUB>1</SUB>=0.202x<SUB>1</SUB>+0.341x<SUB>2</SUB>+0.385x<SUB>3</SUB>+0.512x<SUB>4</SUB>+0.402x<SUB>5</SUB>+0.521x<SUB>6</SUB> X<SUB>2</SUB>=0.687x<SUB>1</SUB>+0.074x<SUB>2</SUB>-0.538x<SUB>3</SUB>-0.117x<SUB>4</SUB>+0.445x<SUB>5</SUB>-0.147x<SUB>6</SUB> (2) The meanings obtained in this case were also the same results as rice variety experiments reported already. The meaning of the first index was mainly concerned with the quantity of individual plant yield of variety at given condition. (3) The meaning of the second index was mainly concerned with the plant type whether the variety was a long-culmed, heavy panicle type or short-culmed, tillering type.
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