Abstract:
【Objective】 To clarify the development characteristics and the effect of different agronomical measures for the lignified bearing branch on Junzao in the Kashgar region of Xinjiang in the hope providing reference for the production of high quality cultivars using lignified bearing branches.
【Method】 This paper observed phenological period, growth, bear fruit condition and fruit quality to confirm the development characteristics of different type jujube bearing branches and analyzed the influence of different agronomic measures on the development characteristics of the lignified bearing branches, thus putting forward the best control measures to promote the growth and development.
【Result】 The lignified bearing branches were compared with the deciduous bearing branches on Junzao: the duration of flowering and the growth period were about twelve and twenty days longer respectively, but fruit ripening period was around fifteen days later. The growth, fruit hanging ratio of lignified bearing branch were significantly higher. The effects of different agronomic measures on the quality of jujube hanging, leaf and fruit were different. The weight-pinching of jujube head and foliar spraying by Urea, KH
2PO
4 could remarkably promote the growth of lignified bearing branch and increase the weight of single fruit, in which the foliar spraying KH
2PO
4 could obviously improve the quality. In the concentration range of the test, the foliar spraying CCC could significantly increase the width of the leaf and the diameter of bearing branch. Foliar spraying of abscisic acid inhibited the normal development of bearing branch and reduced the fruit quality, and foliar spraying GA
3 could promote the development of bearing branch, increase the weight of single fruit, but reduce the soluble sugar content.
【Conclusion】 Compared with the deciduous bearing branch, lignified bearing branch had the advantages of long development time, large growth rate and stronger fruit-setting ability. It can increase the fruit weight and remain at a higher level of fruit quality by using lignified bearing branch. The heavy pinching and spraying KH
2PO
4 can promote the development of bearing branch and improve the fruit quality.