Abstract:

1.Evenness as commonly referred to stand regularities and variability of plant charactersis a problem of some practical significance.Irregularities caused by imperfect germination,planting defect,non-uniformity of seed size are commonly met in ordinary field conditions. The problem has been studied in detail by Engledow and others (6-20).For plant withtillering ability as rice,the question of evenness is more complicated in that the side tillerswhich are consecutively given out,and thus vary greatly in size...