Effect of Apricot-cotton Intercropping System on Gowth and Development of Cotton

【Objective】The aims of this paper were to study growth and development of cotton under apricot-cotton intercropping system to provide theoratical basis for optimization of high-efficiency cultivation of apricot-cotton.【Method】The comparative experiment was carried out between monoculture and intercropping of cotton.【Result】The growth period of intercropping cotton late for 8 d than monoculture cotton;The rate of appearing leaf was the fastest in emergence-appearing bud,the intercropping cotton by 6.2 d per blade, it was later 0.7 d per blade than monoculture cotton,when tip pruning,the plant height of intercropping cotton was 58.01 cm,that of monoculture cotton 64.51 cm;By intercropping the leaf of main stem and the No of fruit branch was reduced,and the length of main stem internodes was long,and the height of firs nodo raised,the total of fruit node was lower by 53.47% than monoculture cotton,the plant number of harvest was 18.34 Million plant per ha,number of per weight boll 3.6 piece,the weight per boll was 5.25 g,the lint percentage by 38.6%,the lint yield was 1352.84 kg/hm2.【Conclusion】The lint percentage and yield of cotton was mainly effected by intercropping conditions.In particular lint yield was lower than 4.3% and lint yield was lower 43.8% than monoculture cotton.