ISHS Acta Horticulturae 1293: VI International Symposium on Lychee, Longan and Other Sapindaceae Fruits
Effect of GA3 and NAA on yield and quality of Java rambutan (Nephelium lappaceum L.) in Ben Tre and Tien Giang provinces of Vietnam |
| Authors: | N.T.N. Hang, N.M. Chau |
| Keywords: | GA3, NAA, Java rambutan, Nephelium lappaceum L |
| DOI: | 10.17660/ActaHortic.2020.1293.24 |
| Abstract:
The present study aimed to evaluate the effect of GA3 and NAA as foliar spraying on yield and quality of ten-year-old trees Java rambutan (Nephelium lappaceum L.). The experiment was carried out at Ben Tre and Tien Giang provinces, southern Vietnam which was arranged by randomized complete block design (RCBD) with four replications, and five treatments including 20 ppm NAA; 30 ppm GA3; 20 ppm NAA + 30 ppm GA3; 500 ppm Thien Nong (2% α NDASH NAA, 0.5% β NDASH NAA and 0.1% GA3) and control. The treatments were sprayed at 4, 6, 8th week after fruit set, respectively. The results showed that spraying 20 ppm NAA; 30 ppm GA3; 20 ppm NAA + 30 ppm GA3; 500 ppm Thien Nong reduced the ratio of fruit drop when compared to control. However, spraying 30 ppm GA3; 20 ppm NAA + 30 ppm GA3; 500 ppm Thien Nong increased firm thickness, total soluble solids (TSS) and yield when compared to spraying 20 ppm NAA and control. | |
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