顶梢枯死

Results from the assessment model indicated that tree vigor(0.202), crown dieback(0.140), and butt rot(0.143) were the most important indicators with maximum weights, whereas tree lean(0.025), parasitism(0.017), root hazard(0.025), and root permeability(0.025) were less important with minimum weights.

从评价模型的权重结果来看，权重值较高的3个指标分别是树势(0.202)、顶梢枯死(0.140)、干基腐朽(0.143)，而权重值较低的指标则是倾斜(0.025)、寄生(0.017)、根部损伤(0.025)和通气透水性(0.017)。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。