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橡胶树在采用导胶(CATASFLOW)技术[PId/6+ET(G),6d刺激1次]的排胶过程中,在高效激素乙烯作用下排胶时间长达36h以上,排胶速度低于对照(S/2d/3+ET),干胶含量(DRC)和总固形物含量(ISC)比对照低,并随排胶进程而下降,在24h内降至最低,然后缓慢回升,但停排前未达到开始排胶时的水平.蔗糖含量的变化与对照不同,随排胶进程而逐步上升,24h后达到最高水平并保持长达12h.橡胶转移酶(RuT)活性低于对照.RuT活性在开始排胶时最低,随排胶上升,16h内达到最高,后有所下降.RuT活性在排胶前期上升后就保持在高于开始导股时活性的30%~100%的水平上.破裂指数(BI)始终高于对照.BI随排胶上升到新高度(28%→36%)后,有所被动,但停排前仍比开始导胶时高。硫酸(R-SH)含量在排胶后4h变化很小,而后刚降到最低水平,再由慢到快地回升到最初的水平,而对照R-SH合量相对稳定.可溶性无机磷(Pi)、镁含量(Mg2+)均随排胶缓慢下降,而对照均剧降。
During the process of rubber tree gum catching (CATASFLOW) [PId / 6 + ET (G), once stimulated by 6d], the gumming time was longer than 36h under the action of high-efficiency hormone ethylene, and the gumming speed was lower than that of the control / 2d / 3 + ET), DRC and ISC were lower than the control and decreased with the process of plasticization, and then decreased to a minimum within 24 hours, then slowly rose, but did not reach the beginning Dispense the level. The change of sucrose content was different from that of the control. The content of sucrose gradually increased with the gluing process and reached the highest level after 24h and kept for 12h. Rubber transferase (RuT) activity was lower than the control. The RuT activity was the lowest at the beginning of gum release and reached the peak within 16 h with the increase of the gum release, then decreased. RuT activity remained at a level higher than 30% -100% of the activity at the beginning of entrainment after the early debinding. The rupture index (BI) was always higher than the control. BI with the glue up to a new height (28% → 36%), some passive, but before the stop row is still higher than when the guide plastic. The content of sulfuric acid (R-SH) changed little at 4h after discharge, and then dropped to its lowest level. After that, the content of R-SH increased to its original level slowly and rapidly. Soluble inorganic phosphorus (Pi), magnesium content (Mg2 +) decreased slowly with the plastic glue, while the control dropped sharply.