Abstract
[Objective] The research aimed to study the effects of plant growth regulators on the rooting of growing grape seedlings in the hotbed. [Method] By using electrothermal hotbed root-promoted method, the cuttings of Fenghuang 51 and Jingzaojing were soaked with indole butyric acid (IBA, 50, 100, 150 mg/L) , and naphthaleneacitic acid (NAA, 50, 100,150 mg/L) and rooting powder (50, 100 mg/L) to observe the rooting situations. [Result] IBA at 50 and 100 mg/L and NAA at 150 mg/L had better root-promoted effects. The rooting rates of cuttings in Jingzaojing and Fenghuang 51 were 70 %, 72 %, 81 % and 83 %, 85 %, 93 % respectively for the above 3 kinds of concentrations, which in control group of clean water was 42 % and 36 %. The rooting rate in each treatment was obviously more than that of CK, but the root length was shorter than that of CK. Buds germinated in each treatment to different extent and the germination rate in most treatments were lower than that of CK. The germination rate of cuttings in Jingzaojing and Fenghuang 51 treated by 150 mg/L NAA was lowest, being 20.0 % and 14.1 % of control group. [Conclusion] IBA, NAA and rooting powder all had obvious root-promoted effects on growing grape seedlings in hotbed. IBA with the concentrations of 50 and 100 mg/L and NAA with the concentration of 150 mg/L had better root-promoted effects. The germination rate of cuttings in the treatment of 150 mg/L NAA was lowest.
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Claims 11
Claim · model-written summary
Jingzaojing cuttings had a rooting rate of 70 % under IBA at 50 mg/L versus 42 % with water.
Verbatim
t0“Grape”
e0“IBA at 50 and 100 mg/L and NAA at 150 mg/L had better root-promoted effects.”
e1“The rooting rates of cuttings in Jingzaojing and Fenghuang 51 were 70 %, 72 %, 81 % and 83 %, 85 %, 93 % respectively for the above 3 kinds of concentrations, which in control group of clean water was 42 % and 36 %.”
Claim · model-written summary
Jingzaojing cuttings had a rooting rate of 72 % under IBA at 100 mg/L versus 42 % with water.
Verbatim
t0“Grape”
e0“IBA at 50 and 100 mg/L and NAA at 150 mg/L had better root-promoted effects.”
e1“The rooting rates of cuttings in Jingzaojing and Fenghuang 51 were 70 %, 72 %, 81 % and 83 %, 85 %, 93 % respectively for the above 3 kinds of concentrations, which in control group of clean water was 42 % and 36 %.”
Claim · model-written summary
Jingzaojing cuttings had a rooting rate of 81 % under NAA at 150 mg/L versus 42 % with water.
Verbatim
t0“Grape”
e0“IBA at 50 and 100 mg/L and NAA at 150 mg/L had better root-promoted effects.”
e1“The rooting rates of cuttings in Jingzaojing and Fenghuang 51 were 70 %, 72 %, 81 % and 83 %, 85 %, 93 % respectively for the above 3 kinds of concentrations, which in control group of clean water was 42 % and 36 %.”
Claim · model-written summary
Fenghuang 51 cuttings had a rooting rate of 83 % under IBA at 50 mg/L versus 36 % with water.
Verbatim
t0“Grape”
e0“IBA at 50 and 100 mg/L and NAA at 150 mg/L had better root-promoted effects.”
e1“The rooting rates of cuttings in Jingzaojing and Fenghuang 51 were 70 %, 72 %, 81 % and 83 %, 85 %, 93 % respectively for the above 3 kinds of concentrations, which in control group of clean water was 42 % and 36 %.”
Claim · model-written summary
Fenghuang 51 cuttings had a rooting rate of 85 % under IBA at 100 mg/L versus 36 % with water.
Verbatim
t0“Grape”
e0“IBA at 50 and 100 mg/L and NAA at 150 mg/L had better root-promoted effects.”
e1“The rooting rates of cuttings in Jingzaojing and Fenghuang 51 were 70 %, 72 %, 81 % and 83 %, 85 %, 93 % respectively for the above 3 kinds of concentrations, which in control group of clean water was 42 % and 36 %.”
Claim · model-written summary
Fenghuang 51 cuttings had a rooting rate of 93 % under NAA at 150 mg/L versus 36 % with water.
Verbatim
t0“Grape”
e0“IBA at 50 and 100 mg/L and NAA at 150 mg/L had better root-promoted effects.”
e1“The rooting rates of cuttings in Jingzaojing and Fenghuang 51 were 70 %, 72 %, 81 % and 83 %, 85 %, 93 % respectively for the above 3 kinds of concentrations, which in control group of clean water was 42 % and 36 %.”
Claim · model-written summary
Each regulator treatment increased rooting rate relative to CK.
Verbatim
t0“Grape”
e0“The rooting rate in each treatment was obviously more than that of CK, but the root length was shorter than that of CK.”
Claim · model-written summary
Each regulator treatment shortened root length relative to CK.
Verbatim
t0“Grape”
e0“The rooting rate in each treatment was obviously more than that of CK, but the root length was shorter than that of CK.”
Claim · model-written summary
Most treatments reduced bud germination rate relative to CK.
Verbatim
t0“Grape”
e0“Buds germinated in each treatment to different extent and the germination rate in most treatments were lower than that of CK.”
Claim · model-written summary
Jingzaojing cuttings treated with 150 mg/L NAA had the lowest germination rate, 20.0 % of control.
Verbatim
t0“Grape”
e0“The germination rate of cuttings in Jingzaojing and Fenghuang 51 treated by 150 mg/L NAA was lowest, being 20.0 % and 14.1 % of control group.”
Claim · model-written summary
Fenghuang 51 cuttings treated with 150 mg/L NAA had the lowest germination rate, 14.1 % of control.
Verbatim
t0“Grape”
e0“The germination rate of cuttings in Jingzaojing and Fenghuang 51 treated by 150 mg/L NAA was lowest, being 20.0 % and 14.1 % of control group.”
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