不同枝量类型富士苹果光强分布及产量品质比较

Comparative Study on Distribution of Relative Light Intensity and Yield and Quality of Red Fuji Apple Trees with Different Numbers of New Shoots

对陇东改良纺锤形富士苹果3种枝量类型树冠内相对光照强度、树冠不同部位光照分布特征、果实产量、产量分布特征及品质进行了对比研究。结果表明:枝量过多型树冠内小于30%的相对光照强度比例最大,枝量合理型次之,枝量不足型最小。枝量合理型、枝量不足型、枝量过多型小于30%的相对光照体积所占树冠总体积分别为32.23%、24.19%、49.53%;产量分别为3 195、1 555、2 098 kg/667m2;果实品质各项指标枝量不足型略高于枝量合理型,但二者均达到了优质苹果的要求,确定出陇东地区富士苹果优质高产的最适留枝量为84 000/667m2左右。

Comparative study on distribution in relative light intensity and fruit yield,characteristic of canopy space in fruit yield and quality with the three different shoots amount types of Red Fuji apple trees,with modified spindle shape in Longdong area.The results showed that the canopy volume ratio of relative light intensity insufficient to 30% were 32.23%,24.19%,49.53% and output were 3 195,1 555,2 098 kg/667m2 in branch amount suitable type,the branch amount insufficient type,the branch amount excessive type;All quality of fruit in branch amount insufficient type slightly than the branch amount suitable type,but fruits of two types all were good quality.The optimum branch amount of canopy structure for good quality and high yield of Red Fuji apple trees were obtained,which were about 84 000/667m2.