GENETIC ANALYSES OF THE QUANTITATIVE CHARACTERS IN GINKGO BILOBA L. LEAVES A Preliminary Study on Genetic Parameters and Selection Efficiency of YieldTraits of Fresh Floral Bud in Rosa rugosa Research on Genetic Variation and Early Selection of the Provenances and Open-pollinated Families of Eucalyptus urophylla Analysis of Genetic Model for HalfSib Progeny Test in Forest Trees A Preliminary Study on Genetic Parameters and Selection Efficiency of YieldTraits of Fresh Floral Bud in Rosa rugosa Genetic Gain of Soybean Breeding for Yield in Henan Summer Soybean Zone Overthe Last 30 Years Correlation and Path Analysis of the M ain Agronomic Traits of Chieh-qua Correlation and Path Analysis of the M ain Agronomic Traits of Chieh-qua Analysis of Combining Ability and Genetics of Starch Quality Traits in Wheat Seed-Setting Mode of Monosomic Addition Line M14 of Sugar Beet Beta corolliflora Family Variation of Oleoresin Compounds and Their Correlation in Pinus massoniana CORRELATION ANALYSIS AND MULTIPLE TRAIT SELECTION ON YIELD CHARACTERS OF GINKGO LEAVES Genetic difference and interrelationship among seed vigor traits in wheat Superior Clone Selection of Casuarina equisetifolia Genetic Analysis for Eleven Parent Incomplete Diallel of Chinese Fir Genetic Variation in Growth and Branch Division Habit of Chinese Fir Clone Genetic Analysis and Family Selection for Main Traits of Growth and Wood Quality of Chinese Fir TREE HEIGHT ANALYSIS IN 14-YEAR-OLD PINUS TABULAEFORMIS CARR. STANDS RESEARCH ON WOOD PROPERTIES IMPROVEMENT Ⅵ.GENETIC CORRELATION ANALYSIS ON WOOD PROPERTIES OF NEW CLONES OF POPULUS DELTOIDES×P.SIMONII