Introduction And Cultivation Of Ningbo Kumquat

Beilun, Ningbo city,which has more than four or five hundred years cultivation history of Chinese kumquat,is one of six major cultivated lands.However, the deterioration of variety and quality decline become more and more serious. This paper focuses on Gold bomb,a main variety of ningbo,to research its biological characteristics.And the production and fruit quality of Gold bomb are influenced by climate and plastic pruning. At the same time, the introduction of Jiangxi4, Baziqiao and HongTian3of Fujian, crispy kumquat of Guangxi crimson kumquat of Huangyan,gold bomb of Suichuan and suichuan1and suichuan2, Israel1, Israel2, seedless kumquat of Japan are contrasted by adaptability of comparative and results character.Then,a series of production technology in kumquat is summarized and a set of feasible production technology rules are worked out, including cultivation management, disease and insect control and severe weather defense etc. The main research results are as follows:1, Kumquat floral organ development is closely related with climate. Ningbo kumquat bomb bud from late June and began to blossom when accumulated temperature reached2475℃. the sunshine time48hours and rainfall51mm is suited for blooming.florescence from appropriate temperature is26.3℃.The result most quantity account for more than80%of the total number. An average temperature of fruit growth is23.9℃, the temperature from13.5to29.3℃,the sunshine750hours and the rainfall530mm.are suitable for fruit growth..2, Biological characteristics of kumquat.The flower buds of Gold bomb give birth to new tip, blossom and bear fruit. The buds has spring pin and early summer tip, late summer tip and autumn tip four kinds.It has special characteristics that many time’s indeterminate shoots, branch lets and fruiting will develop on the same node of indeterminate shoots. Introduction screening. Jiangxi4kumquat and Babuqiao kumquat of Fujian,whose graft survival rate is high,have been screened out. They can well adapt to the climate and environment in introduction ground. And they can be used as key development varieties because of their big shape, well fruit quality and fine taste.Guangxi crispy kumquat, HongTian3and suichuan gold bomb can better meet the introduction to climate and environment growth, but the shape, the fruit quality or taste slightly bad, so they can be in production selectively applications.3, The fruit quality based on the plastic clip. Ningbo kumquat elastic plastic pruning treatment group results show that plastic clip can significantly improve fruit size, low dry open heart average simple fruit diameter can be up to30.1mm, the average weight is11.1g.The treatment fruit size difference is not significant but the differences between and contrast significantly. Round head shape, many dry form and three main branch round head shape colour and lustre is similar, low dry open heart because transmissivity is good, coloring is better than other tree, After trimming, fruit acidity were reduced, and sugar are increased, especially the open heart-shaped tree, because light enough, sugar is obviously higher than that of the other tree and comparison, the best flavor.