| Effect of preharvest irrigation on fruit drop, fruit crack and fruit quality of junzao |
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| DOI：10.7606/j.issn.1000-7601.2017.04.17 |
| Key Words: junzao irrigation time fruit dropping rate fruit cracking rate fruit quality |
| Author Name | Affiliation | | MUHTAR Zari | Institute of Economic Forest, Xinjiang Academy of Forestry Sciences, Urumqi, Xinjiang 830063, China | | KADIR Isah | Institute of Economic Forest, Xinjiang Academy of Forestry Sciences, Urumqi, Xinjiang 830063, China | | MAHMUT Ablat | Institute of Economic Forest, Xinjiang Academy of Forestry Sciences, Urumqi, Xinjiang 830063, China | | SHI Yan-jiang | Institute of Economic Forest, Xinjiang Academy of Forestry Sciences, Urumqi, Xinjiang 830063, China | | WU Zheng-bao | Institute of Economic Forest, Xinjiang Academy of Forestry Sciences, Urumqi, Xinjiang 830063, China |
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| Abstract: |
| This study used eight-year old Junzao trees as materials to investigate the effects of preharvest irrigation timing on fruit dropping rate, fruit cracking rate, leaf relative water content and some fruit quality index of Junzao. The results show that leaf relative water content were increased with increasing of orchard soil water content, the leaf relative water content of T3 (irrigation 5 times) was higher than the control by 17.64%. With more irrigation times, preharvest fruit dropping rate and fruit cracking rate of Junzao were significantly decreased, with the fruit dropping rate and fruit cracking rate of T3 treatment being 7.697%±0.724% and 12.393%±0.290%, respectively. The increase in irrigation times could reduce fruit soluble sugar, titratable acid, Ca and Zn content, but there were a significant increase in the soluble protein and sugar acid ratio, flavonoids, N, K, Mn, Fe and Cu content. In addition, the effects on P and Mg content were not significant. Preharvest irrigation treatment could significantly reduce fruit dropping rate and cracking rate of Junzao, with the T3 treatment showing the largest effect. |
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