摘要
通过实施间伐,使苹果园密度变为4m×6m,每667m2栽植株数下降为28株。与未间伐的果园进行比对,树干的干径提高了0.6cm,冠径扩大了106.79cm。1年生枝的长度减少了2.5cm、粗度增加了0.023cm,长、中、短枝数量分别增加了2.6、128、275.6条,百叶重和百叶厚分别增加了2.84g、4.14mm;单株果数比对照多40个,优果率提高了3.4%,单果重增加38g,果形指数下降0.022%,含糖量提高0.53%,果实硬度降低1.43kg/cm2。
Through thinning, the density of apple trees is now 4 m X 6 m, the number of plants reduced to 28 per 667m2. The diameter of tree trunk is increased by 0.6 cm and diameter of crown expanded by 106.79 cm. One-year branches has been reduced by 2. 5cm in lengthen, thickness increased by 0.02 cm. The proportion of long,medium and short branches increased by 2.6,128,275.6 respectively in quantities, while one-hundred leaves weight and one-hundred leaves thickness increased by 2.84 g and 4.14ram respectively. Number of fruits per plant has been increased by 40 in comparison with the con- trol,quality commercial fruit rate increased by 3. 4% and per fruit weight increased by 38 g. Fruit shape index has been reduced by 0. 022% and the sugar content of fruit increased by 0.53% while the hardness reduced by 1.43 kg/cm2.
出处
《陕西林业科技》
2013年第3期37-38,共2页
Shaanxi Forest Science and Technology
关键词
苹果
示范园
调查
Apple
demonstration orchard
investigation
