| Apple in China's fruit production accounted for the main position in 2015 the national total output of 4261.34 million tons,ranking the world's largest apple production in Shaanxi Province,2015 annual output of 10.337 million tons of apples,accounting for 24.43% of the total output of the apple.But Apple production and sales in the existence of some problems,restricting the development of the apple industry.On the one hand,the bagged apple flavor is poor,affecting the quality of the apple;on the other hand,the rural labor force aging,bagging production increased the apple production cost restricts the apple industry development.Now,most countries in the world are carrying out almost no bag production cultivation.In this paper,the effects of bio-protective film on apple yield and internal and external quality were analyzed and analyzed by using the protective film,the kraft bag and the paper bag,And other indicators,with a view to the apple does not bag cultivation to provide technical support.The main results were as follows :1.The leaf area and leaf chlorophyll content of the upper,middle and lower leaves were increased by 25.8%,18.0% and 6.1%,respectively,compared with those without the use of biological protective film./ SPAD values were increased by 3.1%,4.8%,7.6%,thereby increasing the photosynthetic rate,was conducive to apple tree and fruit growth and development.2.The use of biological protective film early fuji single-mu yield of 3279 kg than the paper bag ranch 3064 kg increased by 7.02%.Fruit weight 272.49 g,compared with the paper bag increased by 36.17 g,fruit diameter,diameter increased by 3.95% and 6.9%.Fruit color a,b values are higher than the paper bag processing,the fruit is more bright red.Fruit hardness of 9.89 kg / cm2,soluble solids content of 13.16%,solid acid ratio of 57.22,compared with the paper bag hardness increased by 12.0%,soluble solids content increased by 14.6%,solid acid ratio increased by 24.6%,flavor better The Fruit shape index,fruit stalk length,acidity,no significant difference between the two.3.The use of biological protective film of the early fruit orchard yield 1878 kg higher than the control were 81 kg,165 kg,250 kg,Gu Zui village high yield orchard yield 3226 kg compared to the control were 157 kg,187 kg,213 kg,Lu Bai village high yield orchard The yield per acre was 3376 kg higher than the control 94 kg,149 kg,229 kg,respectively,significantly higher than other treatments.The average weight of the fruit was 266 g,which was at least 11.64 g higher than that of the other treatments,and the diameter and diameter were significantly higher than those of the other treatments.The coloring area was above 85%,which was lower than that of the paper bag and significantly higher than that of the bag,Fruit hardness,soluble solids content,solid acid ratio were 8.70 kg / cm2,13.7%,62.52 was significantly higher than other treatments.Fruit shape index,fruit stalk length,acidity four treatment no significant difference.4.The use of biological protective film of the fruit surface is not clean the lowest rate of 3.47%,sets of paper bags,kits,bags do not bag clean rate were 5.94%,7.29%,8.73%,were significantly higher than biofilm treatment.The level of storage resistance from high to low,followed by the use of biological protective film,no bags,kits,sets of paper bags.Pesticide residues are in line with national standards.Production costs from high to low in order to set paper bags,kits,biological protective film,not bagging,the cost per acre were 4321.71 yuan,4019.19 yuan,3790.43 yuan,3286.54 yuan,the cost of using bio-protective film significantly lower than the set Paper bag costs,income is greater than the cost of investment.5.Through the comparative analysis of the overall effect of using bio-protective film higher than other treatment,can be applied to Apple's non-bag production. |
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