[{
  "type": "article-journal",
  "title": "EFFECTS OF MANAGEMENT PRACTICES AND TAPPING SYSTEM ON LATEX AND DRY RUBBER YIELDS OF RUBBER TREE CLONE RRIT 251",
  "author": [
    {
      "family": "Wiangsamut",
      "given": ""
    },
    {
      "family": "Koolpluksee",
      "given": ""
    },
    {
      "family": "Makornpas",
      "given": ""
    },
    {
      "family": "Chaichuay",
      "given": ""
    },
    {
      "family": "Chaichuay",
      "given": ""
    },
    {
      "family": "Wiangsamut",
      "given": ""
    }
  ],
  "issued": {
    "date-parts": [[2024]]
  },
  "container-title": "Journal of Animal and Plant Sciences",
  "ISSN": "1018-7081",
  "volume": "34",
  "issue": "1",
  "page": "50-61",
  "DOI": "https://doi.org/10.36899/JAPS.2024.1.0694",
  "abstract": "<p>The cultivation of&nbsp;<em>Hevea brasiliensis,</em>&nbsp;as the main source of natural rubber, is facing the tapping labor shortage and low dry rubber yield problems<span lang=\"TH\">.&nbsp;</span>Management practices and tapping system could nevertheless remedy these constraints<span lang=\"TH\">.&nbsp;</span>Accordingly, the study aimed to assess the latex and dry rubber yields of rubber trees clone RRIT 251 under different irrigation with fertilizer management methods and rubber tapping systems<span lang=\"TH\">.&nbsp;</span>The experiment was laid out in a split<span lang=\"TH\">-</span>plot design, 4 replications with 3 rubber trees per replication<span lang=\"TH\">.&nbsp;</span>Two main plot treatments<span lang=\"TH\">:&nbsp;</span>1<span lang=\"TH\">)&nbsp;</span>application of irrigation combined with chemical and organic fertilizers treatment (IF) and; 2<span lang=\"TH\">)</span>no<span lang=\"TH\">-</span>irrigation<span lang=\"TH\">-</span>fertilizer treatment (NIF). Four subplot treatments<span lang=\"TH\">:&nbsp;</span>1<span lang=\"TH\">) (</span>10 cm<span lang=\"TH\">)</span>S<span lang=\"TH\">.</span>d<span lang=\"TH\">/</span>3<span lang=\"TH\">+</span>ET<span lang=\"TH\">&nbsp;&ndash;</span>&nbsp;tapping 10 cm long of trunk girth&nbsp;<span lang=\"TH\">(</span>at 45&deg;&nbsp;angle<span lang=\"TH\">)&nbsp;</span>above an installed bag of ethylene, for 1 day with 2 days interval; 2<span lang=\"TH\">) (</span>1<span lang=\"TH\">/</span>2<span lang=\"TH\">)</span>S<span lang=\"TH\">.</span>d<span lang=\"TH\">/</span>2<span lang=\"TH\">&nbsp;&ndash;</span>&nbsp;tapping half of trunk girth every other day; 3<span lang=\"TH\">) (</span>1<span lang=\"TH\">/</span>2<span lang=\"TH\">)</span>S<span lang=\"TH\">.</span>2d<span lang=\"TH\">/</span>3, tapping half of trunk girth for 2 days with 1 day interval&nbsp;<span lang=\"TH\">(</span>the practice of most para rubber farmers<span lang=\"TH\">)&nbsp;</span>and; 4<span lang=\"TH\">) (</span>1<span lang=\"TH\">/</span>2<span lang=\"TH\">)</span>S<span lang=\"TH\">.</span>3d<span lang=\"TH\">/</span>4, tapping half of trunk girth for 3 days with 1 day interval<span lang=\"TH\">.&nbsp;</span>The controlled treatment was a combination treatment of NIFx<span lang=\"TH\">&nbsp;(</span>1<span lang=\"TH\">/</span>2<span lang=\"TH\">)</span>S<span lang=\"TH\">.</span>2d<span lang=\"TH\">/</span>3<span lang=\"TH\">.&nbsp;</span>The results showed that both IFx<span lang=\"TH\">&nbsp;(</span>10 cm<span lang=\"TH\">)</span>S<span lang=\"TH\">.</span>d<span lang=\"TH\">/</span>3<span lang=\"TH\">+</span>ET and IFx<span lang=\"TH\">&nbsp;(</span>10 cm<span lang=\"TH\">)</span>S<span lang=\"TH\">.</span>d<span lang=\"TH\">/</span>3<span lang=\"TH\">+</span>ET combination treatments had significant effects<span lang=\"TH\">&nbsp;(</span>P<em><span lang=\"TH\">&le;</span></em>0<span lang=\"TH\">.</span>01<span lang=\"TH\">)&nbsp;</span>in enhancing latex weight per tree, dry rubber weight per tree, latex yield, and dry rubber yield higher than the controlled treatment<span lang=\"TH\">.&nbsp;</span>IF treatment had a significant effect<span lang=\"TH\">&nbsp;(</span>P<span lang=\"TH\">&le;</span>0<span lang=\"TH\">.</span>01<span lang=\"TH\">)&nbsp;</span>in enhancing latex weight per tree, dry rubber weight per tree, latex yield, and dry rubber yields higher than NIF treatment<span lang=\"TH\">.&nbsp;</span>Rubber tapping system under&nbsp;<span lang=\"TH\">(</span>1<span lang=\"TH\">/</span>2<span lang=\"TH\">)</span>S<span lang=\"TH\">.</span>3d<span lang=\"TH\">/</span>4 had a significant effect&nbsp;<span lang=\"TH\">(</span>P<em><span lang=\"TH\">&le;</span></em>0<span lang=\"TH\">.</span>01<span lang=\"TH\">)&nbsp;</span>in enhancing latex weight per tree, dry rubber weight per tree, latex yield, and dry rubber yield while it was significantly&nbsp;<span lang=\"TH\">(</span>P<em><span lang=\"TH\">&le;</span></em>0<span lang=\"TH\">.</span>01<span lang=\"TH\">)&nbsp;</span>low under&nbsp;<span lang=\"TH\">(</span>1<span lang=\"TH\">/</span>2<span lang=\"TH\">)</span>S<span lang=\"TH\">.</span>d<span lang=\"TH\">/</span>2 as compared with the practice used of most farmers<span lang=\"TH\">&mdash;(</span>1<span lang=\"TH\">/</span>2<span lang=\"TH\">)</span>S<span lang=\"TH\">.</span>2d<span lang=\"TH\">/</span>3<span lang=\"TH\">.&nbsp;</span>It is concluded that the application of ethylene under IFx<span lang=\"TH\">&nbsp;(</span>10 cm<span lang=\"TH\">)</span>S<span lang=\"TH\">.</span>d<span lang=\"TH\">/</span>3<span lang=\"TH\">+</span>ET management is a better innovation and technology attributable to having 45<span lang=\"TH\">%&nbsp;</span>less time and less bark area consumed for tapping but with increased dry rubber yield, while IFx<span lang=\"TH\">&nbsp;(</span>1<span lang=\"TH\">/</span>2<span lang=\"TH\">)</span>S<span lang=\"TH\">.</span>2d<span lang=\"TH\">/</span>3 spent more time to increase the dry rubber yield, as compared with the controlled treatment<span lang=\"TH\">.</span></p>",
  "publisher": "Pakistan Agricultural Scientists Forum",
  "URL": "https://thejaps.org.pk/AbstractView.aspx?mid=2022-JAPS-403"
}]