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Analysis on the Fruit Growth Dynamic of Newhall Navel Orange in North of Guizhou(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年11期
Page:
20-23
Research Field:
Publishing date:

Info

Title:
Analysis on the Fruit Growth Dynamic of Newhall Navel Orange in North of Guizhou
Author(s):
JIN Fang-lun; ZHANG Fa-wei; ZHOU Guang-ping; AO Xue-xi; LI Ming; HAN Cheng-min
Guizhou Institute of Sericulture Pepper,Zunyi,Guizhou 563007
Keywords:
Newhall navel orange; fruit; growing development; dynamic
PACS:
S 666
DOI:
-
Abstract:
Regular surveys on 10~12 year-old of the Newhall navel orange fruit growth dynamic were conducted,in order to provide cultivation techniques and scientific management on Newhall navel orange.The results showed that,the fruit growth began from flower dropped and young fruit period in mid-May,and stopped growth in late November,the growth period was 175~182 d,the fruit longitudinal and trasverse diameter appeared 4~6 times growth peak,among which,the longitudinal diameter of fruit diameter five times,transverse diameter four times,formed a rising growth curve with started quickly,then the fastest,then quickly,then close to mature,slow growth until the last stop growing;Net growth of fruit all appeared 6 times growth peak,showed more S type growth curve.The Newhall navel orange fruit mature period should be in late November to early December,when the best flavor had;When fruit matured,the longitudinal diameter was (62.61±5.33) mm,the transverse diameter was (55.83±5.11) mm,fruit shape index was 1.12,the fruit with the circular,fruit base of color was green,the skin color was orange red;suggest to strengthen the management and the water from previous year,supplying germination fertilizer current year,in late June was the best fertilization period and applying foliage spray 2~3 times during growth most productive period,to relieve the contradictions between leaf and fruit nutrient competition,and to improve the quality of fruit production.

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Last Update: 2014-08-04