Effect of spraying lime sulfur on promoting fruit coloring of orah

doi:10.14088/j.cnki.issn0439-8114.2024.04.014

Abstract

Abstract: In order to verify the effect of spraying lime sulfur on the fruit coloring of orah, different treatments of lime sulfur were carried out in Chengxiang Town, Wuming District, Nanning City, Guangxi Province. The results showed that in the key period of maturity and color transformation（December 30th）, the spray of lime sulfur had a significant effect on promoting the red transformation and coloring of orah. A single spray of lime sulfur 1.2 Baume degree had the most significant effect on promoting the red transformation and coloring, and the redness value a* increased by 15.24% compared with CK. The overall coloration index CCI of orah was increased by 40.07% compared with CK, both of which reached the level of extremely significant differences. After a single spraying of 0.8 Baume degree, a* and CCI increased by 11.67% and 32.31% respectively compared with CK. All treatments sprayed with lime sulfur showed an improvement effect on reddening and coloring. According to field observation, the lime sulfur also had good control effect on diseases and pests such as canker, gray mold, aphids, thrips, scale insects, red spiders, etc.

Key words: orah, spray, lime sulfur, fruit coloring, disease and pest control

CLC Number:

S666

HUANG Qi-chun, TAN Song-yue, WANG Ni-na, LIU Fu-ping, LIU Ji-min, HU Cheng-xiao, LIAO Hui-hong, HUANG Hong-ming, WEI Chi-zhang, CHEN Dong-kui, ZENG Zhi-kang. Effect of spraying lime sulfur on promoting fruit coloring of orah[J]. HUBEI AGRICULTURAL SCIENCES, 2024, 63(4): 73-77.

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