Prohexadione-calcium 처리에 따른 금잔디의 생육 조절 및 질소 흡수 억제
Growth regulation and Nitrogen Uptake Inhibition of Zoysia matrella Applying Prohexadione Calcium
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BACKGROUND: Prohexadione-calcium (PC) is a plant growth regulator of cyclohexanedione family acting on inhibiting gibberellin biosynthesis and has been used to regulate shoot elongation of turfgrass in the golf course during the summer season. This study was conducted to investigate the effects of PC on the inhibition of shoot elongation, growth, and nitrogen uptake in Zoysia matrella. METHODS AND RESULTS: Treatments were as fol-lows; non-treatment, control (TE 0.01 a.i. g/m2/100 mL), 0.0025PC (PC 0.0025 a.i. g/m2/100 mL), 0.005PC (PC 0.005 a.i. g/m2/100 mL), 0.01PC (PC 0.01 a.i. g/m2/100 mL) and 0.02PC (PC 0.02 a.i. g/m2/100 mL). Visual qual-ity and chlorophyll content were not significantly diffe-rent. As compared to non-treatment, shoot length and clipping yield in 0.005PC, 0.01PC and 0.02PC treatments were decreased by 29-36% and 65-82%, respectively, and those of 0.0025PC were not significantly different. N up-take of Z. matrella after applying PC was decreased by 28.9-77.8% than that of non-treatment. Inhibition effects of PC treatment in Z. matrella were not significantly dif-ferent from those of control. CONCLUSION(S): These results indicated that the appli-cation of prohexadione calcium inhibited shoot elonga-tion, clipping yield and N uptake amount in Z. matrella, and trinexapac-ethyl could be replaced with prohex-adione-calcium in turfgrass management.
Abstract
BACKGROUND: Prohexadione-calcium (PC) is a plant growth regulator of cyclohexanedione family acting on inhibiting gibberellin biosynthesis and has been used to regulate shoot elongation of turfgrass in the golf course during the summer season. This study was conducted to investigate the effects of PC on the inhibition of shoot elongation, growth, and nitrogen uptake in Zoysia matrella. METHODS AND RESULTS: Treatments were as fol-lows; non-treatment, control (TE 0.01 a.i. g/m2/100 mL), 0.0025PC (PC 0.0025 a.i. g/m2/100 mL), 0.005PC (PC 0.005 a.i. g/m2/100 mL), 0.01PC (PC 0.01 a.i. g/m2/100 mL) and 0.02PC (PC 0.02 a.i. g/m2/100 mL). Visual qual-ity and chlorophyll content were not significantly diffe-rent. As compared to non-treatment, shoot length and clipping yield in 0.005PC, 0.01PC and 0.02PC treatments were decreased by 29-36% and 65-82%, respectively, and those of 0.0025PC were not significantly different. N up-take of Z. matrella after applying PC was decreased by 28.9-77.8% than that of non-treatment. Inhibition effects of PC treatment in Z. matrella were not significantly dif-ferent from those of control. CONCLUSION(S): These results indicated that the appli-cation of prohexadione calcium inhibited shoot elonga-tion, clipping yield and N uptake amount in Z. matrella, and trinexapac-ethyl could be replaced with prohex-adione-calcium in turfgrass management.
참고문헌 (28)
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