Using potash fertilizer to improve fruit development and fruit quality of longkong (Aglaia dookkoo Griff.)
The objective of this study was to determine the effect of potash fertilizers on fruit development and fruit quality, nutrient concentration in leaf, peduncle, rind and pulp of longkong fruit and some properties of soil. The experimental design was randomized complete block design (RCB) with 5 repli...
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| Format: | Article |
| Language: | English |
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Prince of Songkla University
2007-07-01
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| Series: | Songklanakarin Journal of Science and Technology (SJST) |
| Subjects: | |
| Online Access: | http://www.sjst.psu.ac.th/journal/29-4_online/0125-3395-29-4-1003-1006.pdf |
| _version_ | 1819195781763039232 |
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| author | Praprutdee, O. Onthong, J. Nilnold, C. |
| author_facet | Praprutdee, O. Onthong, J. Nilnold, C. |
| author_sort | Praprutdee, O. |
| collection | DOAJ |
| description | The objective of this study was to determine the effect of potash fertilizers on fruit development and fruit quality, nutrient concentration in leaf, peduncle, rind and pulp of longkong fruit and some properties of soil. The experimental design was randomized complete block design (RCB) with 5 replicates (one tree per replicate) and 6 treatments as follows: (1) without K (control), (2) applied 13-13-21 at 2 kg tree-1, (3) applied 13-13-21 2 at kg tree-1 + K2SO4 at 1 kg tree-1, (4) applied 13-13-21 at 2 kg tree-1 + KCl at 733 g tree-1 (5) K2SO4 at 840 g tree-1 and (6) KCl at 700 g tree-1. The results showed that K application increased cluster weight, fruit weight, fruit diameter and total soluble solids (TSS), compared with the control (P<0.05), whereas the rind thickness decreased. However, there was no apparent effect on length of peduncle, peduncle weight, number of fruits and juice titratable acidity (TA). Even though K fertilization improved fruit qualities, among the K sources fruit qualities were not significantly different. The fruit qualities of the Kfertilized (average) and control treatments after 14 weeks of fruit set were as follow: cluster weight 473.06 and 336.59 g cluster-1, fruit weight 432.90 and 272.79 g cluster-1, fruit diameter 32.75 and 29.96 mm and TSS 17.46 and 14.88 % Brix respectively. Moreover, K concentrations in leaf, rind and pulp in the K-fertilized treatments were higher than in the control (P<0.05), while Ca concentrations in leaf and rind were reversed (P<0.05). However, pulp K concentrations in the K-fertilized and control treatments were not different. Two application times of K-fertilizer did not give better fruit qualities than a single one, but resulted in higher amount of exchangeable K accumulation in soil. Therefore, it is recommended that KCl can be applied as a single application to longkong trees at 5 weeks after fruit set. |
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| format | Article |
| id | doaj.art-e298f0d81a234789ae52e1d7f31d3f7b |
| institution | Directory Open Access Journal |
| issn | 0125-3395 |
| language | English |
| last_indexed | 2024-12-23T02:18:13Z |
| publishDate | 2007-07-01 |
| publisher | Prince of Songkla University |
| record_format | Article |
| series | Songklanakarin Journal of Science and Technology (SJST) |
| spelling | doaj.art-e298f0d81a234789ae52e1d7f31d3f7b2022-12-21T18:03:37ZengPrince of Songkla UniversitySongklanakarin Journal of Science and Technology (SJST)0125-33952007-07-0129410031006Using potash fertilizer to improve fruit development and fruit quality of longkong (Aglaia dookkoo Griff.)Praprutdee, O.Onthong, J.Nilnold, C.The objective of this study was to determine the effect of potash fertilizers on fruit development and fruit quality, nutrient concentration in leaf, peduncle, rind and pulp of longkong fruit and some properties of soil. The experimental design was randomized complete block design (RCB) with 5 replicates (one tree per replicate) and 6 treatments as follows: (1) without K (control), (2) applied 13-13-21 at 2 kg tree-1, (3) applied 13-13-21 2 at kg tree-1 + K2SO4 at 1 kg tree-1, (4) applied 13-13-21 at 2 kg tree-1 + KCl at 733 g tree-1 (5) K2SO4 at 840 g tree-1 and (6) KCl at 700 g tree-1. The results showed that K application increased cluster weight, fruit weight, fruit diameter and total soluble solids (TSS), compared with the control (P<0.05), whereas the rind thickness decreased. However, there was no apparent effect on length of peduncle, peduncle weight, number of fruits and juice titratable acidity (TA). Even though K fertilization improved fruit qualities, among the K sources fruit qualities were not significantly different. The fruit qualities of the Kfertilized (average) and control treatments after 14 weeks of fruit set were as follow: cluster weight 473.06 and 336.59 g cluster-1, fruit weight 432.90 and 272.79 g cluster-1, fruit diameter 32.75 and 29.96 mm and TSS 17.46 and 14.88 % Brix respectively. Moreover, K concentrations in leaf, rind and pulp in the K-fertilized treatments were higher than in the control (P<0.05), while Ca concentrations in leaf and rind were reversed (P<0.05). However, pulp K concentrations in the K-fertilized and control treatments were not different. Two application times of K-fertilizer did not give better fruit qualities than a single one, but resulted in higher amount of exchangeable K accumulation in soil. Therefore, it is recommended that KCl can be applied as a single application to longkong trees at 5 weeks after fruit set.http://www.sjst.psu.ac.th/journal/29-4_online/0125-3395-29-4-1003-1006.pdfAglaia dookkoo Griff.K fertilizerfruit qualitytotal soluble solids |
| spellingShingle | Praprutdee, O. Onthong, J. Nilnold, C. Using potash fertilizer to improve fruit development and fruit quality of longkong (Aglaia dookkoo Griff.) Songklanakarin Journal of Science and Technology (SJST) Aglaia dookkoo Griff. K fertilizer fruit quality total soluble solids |
| title | Using potash fertilizer to improve fruit development and fruit quality of longkong (Aglaia dookkoo Griff.) |
| title_full | Using potash fertilizer to improve fruit development and fruit quality of longkong (Aglaia dookkoo Griff.) |
| title_fullStr | Using potash fertilizer to improve fruit development and fruit quality of longkong (Aglaia dookkoo Griff.) |
| title_full_unstemmed | Using potash fertilizer to improve fruit development and fruit quality of longkong (Aglaia dookkoo Griff.) |
| title_short | Using potash fertilizer to improve fruit development and fruit quality of longkong (Aglaia dookkoo Griff.) |
| title_sort | using potash fertilizer to improve fruit development and fruit quality of longkong aglaia dookkoo griff |
| topic | Aglaia dookkoo Griff. K fertilizer fruit quality total soluble solids |
| url | http://www.sjst.psu.ac.th/journal/29-4_online/0125-3395-29-4-1003-1006.pdf |
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