Response of Chlorophyll,Proline and Root Activity of Maize to Regulated Deficit Irrigation and N Fertilization Treatment

doi:10.7668/hbnxb.2009.04.022

Abstract

Abstract: Pot experiment was conducted to study deficit period,the effect of nitrogen rate and irrigation quantity on physiological index were studied. The results showed that,water deficit and nitrogen rate affected significantly on chloro2 phyll,proline and root activity of maize at different growth stages.Water deficit led to lower chlorophyll content ;nitrogen rate and chlorophyll content was positively relevant. Chlorophyll maximum appeared in the late jointing,chlorophyll started to reduce in heading stage.Water deficit could increase the proline content ;added value of proline content was compara2 tively small in seeding stage and reached the maximum in heading stage. The nitrogen apply would slightly reduce the pro2 line content. Sustained drought led to the growth of proline content limited in heading stage. Root activity increase and then decrease with the growth period.Water deficit reduced root activity ;compensation effect of root activity was obvious after water covered.Nitrogen application could enhance root activity under same water condition. The best treatment was coupling of water deficit in seedling stage and high nitrogen.

Key words: :Deficit irrigation, Nitrogen rate, Chlorophyll, Proline, Root activity

CLC Number:

S143.1

LIU Xiao-gang, ZHANG Fu-cang, YANG Qi-liang, LI Zhi-jun. Response of Chlorophyll,Proline and Root Activity of Maize to Regulated Deficit Irrigation and N Fertilization Treatment[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2009, 24(4): 106-111. doi: 10.7668/hbnxb.2009.04.022.

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References

[1] 山仑,徐萌.节水农业及其生理生态基础[J].应用生态学报991,2(1):70-76.
[2] 山仑.植物生理学与国土整治和利用[J].植物生理学通讯994,30(1):61-66.
[3] 康绍忠,蔡焕杰.作物根系分区交替灌溉和调亏灌溉的理论与实践[M].北京:中国农业出版社,2002.
[4] 郭相平,康绍忠,索丽生.苗期调亏处理对玉米根系生长影响的试验研究[J].灌溉排水,2001,20(1):25-27.
[5] 张喜英,由懋正,王新元.不同时期水分调亏及不同调亏程度对冬小麦产量的影响[J].华北农学报999,6(3):33-36.
[6] 孟兆江,卞新民,刘安能,等.棉花调亏灌溉的生理响应及其优化农艺技术[J].农业工程学报,2007,23(12):80-84.
[7] Pandey R K,Maraville J W,Admou A.Tropical wheat response to irrigation and nitrogen in a Sahelian environment.I.Grain yield,yield components and water use efficiency[J].European Journal of Agronomy,20015:93-105.
[8] Pandey R K,Maraville J W,Chetima M M.Tropical wheat response to irrigation and nitrogen in a Sahelian environment.Ⅱ.Biomass accumulation,nitrogen uptake and water extraction[J].European Journal of Agronomy,20015:106-118.
[9] 高俊凤.植物生理学实验技术[M].西安:世界图书出版社999:97-202.
[10] Delauney A J,Verma D P S.Proline biosynthesis and osmoregulation in plants[J].Plant J993,4:215-223.
[11] 高灿红,胡晋,郑昀晔,等.玉米幼苗抗氧化酶活性、脯氨酸含量变化及与其耐寒性的关系[J].应用生态学报,20067(6):1045-1050.
[12] 彭志红,彭克勤,胡家金,等.渗透胁迫下植物脯氨酸积累的研究进展[J].中国农学通报,2002,26(5):533-537.
[13] 魏道智,宁书菊,林文雄.小麦根系活力变化与叶片衰老的研究[J].应用生态学报,20045(9):1565-1569.
[14] 王素平,郭世荣,李王景,等.盐胁迫对黄瓜幼苗根系生长和水分利用的影响[J].应用生态学报,20067(10):1883-1888.
[15] 彭致功,杨培岭,任树梅,等.再生水灌溉对草坪草生长速率、叶绿素及类胡萝卜素的影响特征[J].农业工程学报,2006,22(10):105-108.
[16] 何承刚,黄高宝,姜华.氮素水平对单作和间套作小麦玉米叶片叶绿素含量及品质的影响[J].干旱地区农业研究,2004,22(3):32-34.
[17] 谢华,沈荣开,徐成剑,等.水、氮效应与叶绿素关系试验研究[J].中国农村水利水电,2003,8:40-43.
[18] 曹翠玲,李生秀.氮素对植物某些生理生化过程影响的研究进展[J].西北农业大学学报999,27(4):96-101.

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