Dual-capability breeding technology uses the electrical behavior of leaves to obtain plant physiological and dynamic parameters such as intracellular water metabolism,material metabolism and energy metabolism of crops to characterize crop vitality and productivity(Dual-capability).The growth function,development function,metabolic ability and stress resistance of crops were rapidly evaluated online with'Dual-capability'as the evaluation index,and the phenotype and strain in conven-tional breeding,the offspring of cross breeding and the genotype of molecular breeding were quickly screened and evaluated online.The intracellular water metabolism,nutrient transport capacity and metabolic activity of 16 Dendrobium officinale resources were evaluated by dual-capability breeding technique,and 5 excellent Dendrobium officinale lines adapted to the epiphytic dry bark of karst for-est were selected according to their scores.The three Dendrobium officinale resources with the high-est scores were screened and evaluated,and finally LH1,which ranked first for both times,was suit-able for simulating wild drought stress,indicating that dual-capability breeding technology could greatly improve the screening efficiency of excellent strains.
关键词
铁皮石斛/双力育种/电生理参数/抗逆机能/优良株系筛选
Key words
Dendrobium officinale/dual-capability breeding/electrophysiological parameters/stress resistance/screening of superior strains
维普
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