Path Analysis of 10 Agronomic Characters of Maize

Ninety crossed were made for incomplete diallel crosses. Heridity correlation and heridity path of ear length etc.Ten agronomic characters with grain yield of maize was studied with randomized blok design of three replications. Result indicated that heridity correlation coefficient of ear length etc.The agronomic characters of grain yield of maize was studied with randiomized blok design of three replications.The results indicated that heridity correlation coefficient of ear length etc. Ten agronomic characters in grian yield showed positive value. And all this,all have signicant differences at P =0.01.The result of path analysis indicated directly path coefficient of ear length,fertile character, ear diameter, 1000 grain weight, rows per ear, growing stage and grain yield all was positive.In those, directly path coefficient of ear length with grain yield was the largest.It was 23.6237.Next, directly path coefficient of fertile character with grain yield was 2.9178.And direct path coefficient of kernel per row etc.Four characters was negative.When selecting heigh grain yield hybrid of maize, must attend very to select phentype of length ear and better fertile character.Next, must to select diameter ear and grain weight.And attend to select row per ear.