tree vigor

常见例句

The effects of girdling on branch composition, tree vigor, trunk disease of Fuji apple trees were investigated in orchards.
调查研究了环剥对富士苹果树枝类构成、树势、枝干病害等的影响。
The cutting back pruning of central section of spring shoots could stimulate growth of precocious walnut, and obviously strengthen the tree vigor and control branches withered.
从春梢中部短截修剪，能够刺激扶风早实核桃植株的生长，对增强树势和抑制枝条枯死有明显作用。
The results showed that the shrink of fruit is closely related with fruit development, tree age, branch age, tree vigor, stand site, weather factor, insect attack, management, and variety.
结果表明：枣缩果病的发生与枣果发育期、树龄、枝龄、树势、气象因子、立地条件、虫害、栽培条件及栽培品种有密切关系。