Grey correlation degree analysis on major traits of narrow row and dense growth and three lines of ridge cultivation in soybean
Chen Qing-shan · Dongbei Nongye Daxue xuebao · 2010
Agronomic traits which affected the yield of soybean were analyzed by using the gray system theory in the experiment,the main factors affecting production was determined in narrow row and three lines of ridge,to provide a scientific basis for breeding and cultivation of soybean.A grey correlation cardinality method was employed to calculate the degree of association of soybean main traits in narrow row and three lines of ridge.The results showed that the correlation order between agronomic traits and yield was as follows: plant heightseed weight per plantmain stem node numbereffective pod num-ber100-seed weightdry matter accumulation above-ground partseed number per plantheight of lowest pod in narrow row and dense growth,which were as follows: seed weight per plant100-seed wei-ghteffective pod numberplant heightheight of lowest podmain stem node numberseed number per plantdry matter accumulation in above-ground parts in three lines of ridge cultivation.