Evaluation on resistance of 4 alfalfa （Medicago sativa ） cultivars to pea aphid （Acyrthosiphon pisum ）
The resistance of 4 alfalfa （Medicago sativa） cultivars to pea aphid （Acyrthosiphon pisum ） was evaluated by mass-infesting young seedlings in the field and lab to select high resistant cultivars to pea aphid. The results of this study showed that the Gannong No. 5（HA-3）showed the strongest resistance and its percent of resistant plants accounted for 50. 3% and 48. 9% in the field and lab experiments, respectively. The Hunter River showed a poor resistance and its percent of resistant plant was only 4.0% and 4.3% in the field and lab experiments, respectively. The field experimental results showed that Gannong No. 5 was high resistance cultivar, and Gannong No. 3, Golden Empress and Hunter River were susceptible cultivars; the lab experimental results showed that Gannong No. 5 was high resistance cultivar, and Gannong No. 3 and Golden Empress were low resistance cultivars, and Hunter River was susceptible cultivar.
alfalfa cultivarpea aphidinsect resistancedamage graderesistant class
国家科技期刊平台
NSTL
万方数据
维普
