Light Distribution Inside Crown and Quality Determination of Fragrant Pear(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Light Distribution Inside Crown and Quality Determination of Fragrant Pear

Author(s):: CHEN Jiang1; ZHANG Kaili1; ZHANG Qi1; 2; (1.College of Plant Science，Tarim University，Alar，Xinjiang 843300；2.Key Laboratory of Protection and Utilization of Biological Resourcesin Tarim Basin，Xinjiang Production and Construction Corps,Alar，Xinjiang 843300)

Keywords:: fragrant pear; delayed-open central leader system; inside crown; relative light intensity; fruit quality

Abstract:: Using evacuation hierarchical pears trees as materials，which in the uniform growth of the normal fruits，divided trees crown into 1.0 m×1.0 m×1.0 m cube，whose center was the trunk，fruits quality in different parts was measured by testing the relative light intensity in the maturation period.The crown under the sunlight in vertical distribution and horizontal distribution of fragrant pear fruit appearance and inner quality difference were studied.The results showed that from top to bottom,from outside to inside the light intensity was decreasing，and the correlation of the relative light intensity and different vertical levels was significant.Specifically，when the distribution and light intensity was consistent，the fruit quality in the parts of lager lights strength was better.With the rising of the light intensity,single fruit weight,soluble solids,soluble sugars,anthocyanin content increased，however，organic acids decreased.So when the light intensity in the different position，the chlorophyll content of fruits in the low layer was higher than which in the middle and upper layer，and the fruits with low maturity.

[1] 孙建设 , 乔进春 , 张志华 , 等 . 光照与苹果果实品质及叶片营养状况 [J]. 河北果树 ,1998(2):36. 

[2]王建新,牛自勉,李志强，等.乔砧富士苹果小同冠形相对光照强度的差异及对果实品质的影响[J].果树学报,2011,28(1):8-14.

[3]木合塔尔·扎热,李疆,罗淑萍,等.全光和遮光下库尔勒香梨果实品质的比较分析[J].经济林研究,2012,33(4):28-31.

[4]何凤梨,王飞,魏钦平,等.桃树冠层相对光照分布与果实产量品质关系的研究[J].中国农业科学,2008,41(2):502-507.

[5]李青田.光强与苹果质量产量的关系[J].农业气象,1982,3(1):37-43.

[6]张琦,何天明,冯建菊,等.香梨树冠内的光照分布及其对果实品质的影响[J].落叶果树,2001(3):1-3.

[7]张玉星.果树栽培学总论[M].北京:中国农业出版社,2011:96-97.

[8]黄卫东,原永兵,彭宜本.温带果树结实生理[M].北京:农业大学出版社,1994:121.

[9]顾曼如,束怀瑞,曲佳敏,等.红星苹果果实的矿质元素含量与品质关系[J].园艺学报,1992,19(4):301-306.

Last Update: 2015-12-07