危害作物 meaning in English
damage to crops
Examples
- It is extremely injurious to plants and tends to destroy them .
它极大地危害作物甚至损毁庄稼。 - Sediment deposits in ditches result in the raising of water tables and damage to crops .
泥沙淤积在排水沟引起地下水位上升，并危害作物。 - Weed control and timing of treatment to avoid weed penalty
杂草控制及适时处理，以防止其蔓延危害作物。 - One of the key objectives that breeding faces is to manage to increase the yield anof the crops , meanwhile , for traditional breeding technology , the potentiality to increase yield of crop is rather limited . pest is one of the main factors which endanger the high yield of crops . genes can be transferred from one species to another by applying transgenic engineering technology , which enable the charactersitics including high - yield and pest - resistance to be transferred to one species
增加作物产量是育种的重要目标之一，传统育种技术进一步提高作物单产上面临困难，而虫害又严重危害作物高产。基因工程可以打破物种间的界限而实现基因的转移，使传统育种技术难以实现的高产、抗虫等性状聚合于一个品种成为可能。