1Mutants obtained from embryogenic cell suspension cultures irradiated by ion beam in sweet potatoLI Ai-xian, LIU Qing-chang7-9,122Variation analysis of introducing soybean DNA into T1 and T2 wheat10-123RAPD analysis of homonucleo alloplasmic wheat13-154Variety demand and breeding strategy of wheat in Shandong province16-18,445Breeding methods and practice of super wheat19-206Breeding objective and selecting method improvement of huang-huai-hai summer maizeWang Li-ming, Guo Qing-fa, Gao Xin-xue, Meng Zhao-dong, Liu Zhi-xian21-247Correlation and path analysis of main quantitative characteristics on fresh yield of glutinous maize25-278Effect of bed planting for wheat on day temperature of different layer soils in early spring28-309Salt tolerance test of Atriplex Triangularis31-32,3410Effect of bagging on temperature and the quality of Gala apple33-3411Study on culture base formulation of African chrysanthemum35-3612Cultivation techniques of interplanting cotton and watermelon37-3813Main cultivation techniques of golden chain tree38-3914Cultivation techniques of pleurotus abalones using lees and straw40-4115Study on soil nutrients of green tea gardens in Shandong provinceYANG Wei-hua, SHI Yan-xi, DING Zhao-tang42-4416Characteristic study of brown soil supplying phosphorus in Shandong province45-4817Effect of plastic covering on the nutrition absorptivity of broccoli49-5018Effect of several pesticides on the vigor of anaerobic cellulolytic bacteria in double cropping rice regions51-5219Study on butcher characteristics and meat quality of different hybrid sheep53-5420Effect of energy, crude protein and lysine on the growth and meat quality of hog55-57 