Effect of Foliar Application with Potassium Nitrate and Copper Sulfate on Fruit Yield and Quality of Pear (Pyrus communis L.) Trees
IF 2.4
3区 农林科学
Q2 HORTICULTURE
引用次数: 2
Abstract
ABSTRACT Influence of foliar application of potassium nitrate and copper sulfate on the production and quality of Pear cv. Le Conte was carried out at Horticulture Research Farm and Postharvest Laboratory, The University of Agriculture Peshawar-Pakistan, during the year 2018–19. The aim of the study was to get quality pear production with minimal disease incidence. The research was carried out in a randomized complete block design with three replications. The study contained two factors, i.e., different concentrations of potassium nitrate (0%, 1%, 2%, and 3%) as Factor A, while different levels of copper sulfate (0%, 0.2%, 0.4%, 0.6%, and 0.8%) as factor B and the treatments were applied in spring season at the fruit set stage. The application of 2% potassium nitrate to the pear plants resulted in heaviest fruit (188.30 g), maximum fruit volume (203.80 cm3), fruit yield tree−1 (60.13 kg) with minimum fruit drop (8.52%) and disease incidence (5.28%), while maximum fruit firmness (7.66 kg.cm−2), total soluble solids (12.40 ○Brix), fruit juice pH (5.38), ascorbic acid content (5.56 mg.100 g−1) while minimum Titratable acidity (0.41%) were noted in fruits of plants sprayed with 3% potassium nitrate solution. However, the maximum fruit weight (192.04 g), fruit yield tree−1 (59.06 kg), minimum fruit drop (6.75%), and disease incidences (3.54%) were recorded in pear plants applied with 0.6% foliar copper sulfate solution. However, maximum fruit firmness (7.53 kg.cm−2), total soluble solids (12.38 ○Brix), fruit juice pH (5.31), ascorbic acid content (5.22 mg.100 g−1) with minimum Titratable acidity (0.42%) were noted in the plants sprayed with 0.8% copper sulfate solution. This study will provide a basis for high yield and quality fruit production, which will affect the storability of pear and other important fruit crops. Further studies should be conducted to optimize the dose, timing, and method of application of these fungicides for other pome fruits.叶面施用硝酸钾和硫酸铜对梨产量和品质的影响树
叶面施用硝酸钾和硫酸铜对梨产量和品质的影响。Le Conte于2018-19年在巴基斯坦白沙瓦农业大学园艺研究农场和收获后实验室进行。本研究旨在以最低的发病率获得优质的梨产品。本研究采用随机完全区组设计，共3个重复。以不同浓度的硝酸钾(0%、1%、2%、3%)为A因子，以不同浓度的硫酸铜(0%、0.2%、0.4%、0.6%、0.8%)为B因子，在春季坐果期施用。施用2%硝酸钾的梨果实最重(188.30 g)，果实体积最大(203.80 cm3)，果实产量(60.13 kg)，果实落差最小(8.52%)，病害发生率(5.28%)，果实硬度最大(7.66 kg.cm - 2)，总可溶性固形物(12.40〇Brix)，果汁pH(5.38)，抗坏血酸含量(5.56 mg)。100 g−1)，而施用3%硝酸钾溶液的植株果实可滴定酸度最小(0.41%)。结果表明，0.6%硫酸铜溶液处理的梨单株单果重最高(192.04 g)，单果产量最高(59.06 kg)，果实落差最低(6.75%)，病害发生率最高(3.54%)。然而，最大果实硬度(7.53 kg.cm−2)，总可溶性固结物(12.38〇Brix)，果汁pH(5.31)，抗坏血酸含量(5.22 mg)。在施用0.8%硫酸铜溶液的植株中，可滴定酸度最小(0.42%)为100 g−1。该研究将为高产优质水果生产提供依据，影响梨等重要水果作物的贮藏性。进一步的研究应优化这些杀菌剂的剂量，时间和方法的应用在其他水果。
本文章由计算机程序翻译，如有差异，请以英文原文为准。
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来源期刊
International Journal of Fruit Science
Agricultural and Biological Sciences-Agronomy and Crop Science
CiteScore
6.40
自引率
0.00%
发文量
64
审稿时长
10 weeks
期刊介绍：
The International Journal of Fruit Science disseminates results of current research that are immediately applicable to the grower, extension agent, and educator in a useful, legitimate, and scientific format. The focus of the journal is on new technologies and innovative approaches to the management and marketing of all types of fruits. It provides practical and fundamental information necessary for the superior growth and quality of fruit crops.
This journal examines fruit growing from a wide range of aspects, including:
-genetics and breeding
-pruning and training
-entomology, plant pathology, and weed science
-physiology and cultural practices
-marketing and economics
-fruit production, harvesting, and postharvest
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