不同钙浓度对宽叶雀稗幼苗的生长和抗性生理的影响

赵鑫,王文娟,王普昶,黄莉娟,赵丽丽

Effects of different calcium concentrations on growth and physiology of Paspalum wettsteinii seedlings

ZHAO Xin,WANG Wen-Juan,WANG Pu-Chang,HUANG Li-Juan,ZHAO Li-Li

表2 不同CaCl₂浓度对宽叶雀稗幼苗过氧化物酶(POD)、过氧化氢酶(CAT)和超氧化物歧化酶(SOD)活性和丙二醛(MDA)含量的影响(平均值±标准误差)

Table 2 Effects of different CaCl₂ concentrations on peroxidase, catalase, superoxide dismutase activity and malondialdehyde content of Paspalum wettsteinii seedlings (mean ± SE)

抗氧化酶和丙二醛 Antioxidative enzyme and malondialdehyde	CaCl₂浓度 CaCl₂concentrations (mmol·L^-1)	时间处理 Time treatment (d)
抗氧化酶和丙二醛 Antioxidative enzyme and malondialdehyde	CaCl₂浓度 CaCl₂concentrations (mmol·L^-1)	7	14	21	28
POD (U·g^-1)	0	1 034.32 ± 65.54^Bb	1 135.20 ± 29.29^Ac	827.85 ± 37.30^Cc	667.22 ± 38.99^Db
	5	1 043.20 ± 37.77^Bb	1 240.38 ± 60.69^Ab	967.84 ± 21.11^Bb	825.57 ± 59.04^Ca
	25	1 173.26 ± 21.35^Bb	1 381.73 ± 35.64^Aa	1 111.83 ± 29.74^Ba	883.05 ± 54.03^Ca
	50	1 185.94 ± 52.78^Aa	1 158.08 ± 61.95^Abc	802.64 ± 26.22^Bc	639.95 ± 17.27^Cb
	100	1 048.06 ± 55.63^Ab	998.21 ± 27.68^Ad	661.87 ± 52.83^Bd	458.34 ± 31.80^Cc
	200	890.13 ± 24.29^Ac	726.07 ± 56.01^Be	446.48 ± 63.14^Ce	398.46 ± 13.29^Cc
CAT (U·g^-1)	0	49.58 ± 5.27^Ccd	91.00 ± 4.84^Ac	66.25 ± 2.84^Bc	40.33 ± 2.02^Dc
	5	58.18 ± 3.69^Cb	96.86 ± 3.75^Abc	75.56 ± 3.61^Bb	44.21 ± 0.98^Db
	25	66.18 ± 5.21^Ca	106.90 ± 3.97^Aa	81.33 ± 2.30^Ba	50.22 ± 0.99^Da
	50	53.87 ± 2.95^Cbc	102.75 ± 4.81^Ab	71.13 ± 2.85^Bb	37.60 ± 1.24^Dd
	100	44.38 ± 4.29^Cd	78.95 ± 2.41^Ad	52.96 ± 1.65^Bd	32.82 ± 1.39^De
	200	42.96 ± 3.79^Cd	63.27 ± 2.40^Ae	49.20 ± 2.66^Bd	30.58 ± 2.24^De
SOD (U·g^-1)	0	449.72 ± 15.86^Ce	761.24 ± 19.78^Ac	511.24 ± 1.00^Bd	362.00 ± 4.92^Dc
	5	531.29 ± 17.48^Cc	783.43 ± 7.93^Ab	566.58 ± 10.39^Bb	391.70 ± 1.45^Db
	25	598.90 ± 5.61^Ca	878.34 ± 3.26^Aa	626.77 ± 20.00^Ba	416.30 ± 2.84^Da
	50	566.31 ± 1.98^Bb	797.08 ± 3.70^Ab	545.40 ± 5.00^Cc	387.04 ± 5.43^Db
	100	516.22 ± 1.12^Bc	660.98 ± 10.88^Ad	431.00 ± 10.00^Ce	333.14 ± 3.22^Dd
	200	468.37 ± 2.77^Bd	629.66 ± 13.24^Ae	404.64 ± 4.00^Cf	219.90 ± 9.99^De
MDA (μmol·g^-1)	0	5.29 ± 0.37^Dbc	8.83 ± 0.29^Cab	9.49 ± 0.23^Bbc	12.68 ± 0.20^Abc
	5	5.19 ± 0.17^Dc	8.00 ± 0.62^Cbc	9.04 ± 0.33^Bcd	11.77 ± 0.16^Acd
	25	5.04 ± 0.41^Dc	7.50 ± 0.75^Cc	8.47 ± 0.14^Bd	11.29 ± 0.44^Ad
	50	5.81 ± 0.53^Dbc	8.59 ± 0.30^Cab	10.40 ± 0.56^Bb	13.66 ± 0.35^Ab
	100	6.00 ± 0.41^Dab	8.94 ± 0.63^Cab	11.12 ± 0.75^Ba	15.22 ± 0.46^Aa
	200	6.60 ± 0.45^Da	9.64 ± 0.61^Ca	11.58 ± 0.27^Ba	15.53 ± 0.34^Aa