CAJ | 학술논문

以金山27为供试品种,通过连续2年的田间试验,研究农户( NH)、高产高效( GCGX)、再高产( ZGC)和再高产高效(ZGCGX)4种栽培模式下春玉米根系的时空分布及生理特性。研究表明,不同土层春玉米根重生育期内均呈先增高后降低的趋势,吐丝期达到最大值,各生育时期均为ZGCGX>ZGC>GCGX>NH；不同土层春玉米根重占总根重的比例随生育进程呈单峰曲线变化,0~20 cm表现为NH>GCGX>ZGC>ZGCGC,20~40 cm 和40~60 cm表现为ZGCGX>ZGC>GCGX>NH；不同栽培模式吐丝期根系活力最大,乳熟期最小,均为ZGCGX>NH>GCGX>ZGC；SOD和POD活性在吐丝期和乳熟期均为0~20 cm和20~40 cm土层ZGCGX>NH>GCGX>ZGC,40~60 cm土层ZGCGX>GCGX>NH>ZGC,MDA含量在吐丝期各土层均为ZGC>GCGX>NH>ZGCGX,乳熟期为ZGC>GCGX>NH>ZGCGX。
이금산27위공시품충,통과련속2년적전간시험,연구농호( NH)、고산고효( GCGX)、재고산( ZGC)화재고산고효(ZGCGX)4충재배모식하춘옥미근계적시공분포급생리특성。연구표명,불동토층춘옥미근중생육기내균정선증고후강저적추세,토사기체도최대치,각생육시기균위ZGCGX>ZGC>GCGX>NH；불동토층춘옥미근중점총근중적비례수생육진정정단봉곡선변화,0~20 cm표현위NH>GCGX>ZGC>ZGCGC,20~40 cm 화40~60 cm표현위ZGCGX>ZGC>GCGX>NH；불동재배모식토사기근계활력최대,유숙기최소,균위ZGCGX>NH>GCGX>ZGC；SOD화POD활성재토사기화유숙기균위0~20 cm화20~40 cm토층ZGCGX>NH>GCGX>ZGC,40~60 cm토층ZGCGX>GCGX>NH>ZGC,MDA함량재토사기각토층균위ZGC>GCGX>NH>ZGCGX,유숙기위ZGC>GCGX>NH>ZGCGX。
The Jinshan 27 was grown under farmer cultivation ( NH) ,high yield and high efficiency ( GCGX) , higher yield (ZGC)and super-high yield and high efficiency (ZGCGX) condition in 2009 and 2010,to study the root distribution space-time and physiological characteristics of spring maize of different cultivation patterns. The re-sults showed that the root dry weight was first up then down with the growing process and the maximum appeared at silking stage,and ZGCGX>ZGC>GCGX>NH in each growth stage. The percentage of root weight of different soil was a single apex with growing,its was NH>GCGX>ZGC>ZGCGC in 0-20 cm soil layer and ZGCGX>ZGC>GCGX>NH in 20-40,40-60 cm soil layer. The root vigor of different cultivation patterns was the maximum at silking stage,and the mixmum appear at milking stage,and ZGCGX>NH>GCGX>ZGC. SOD and POD activity of root of four cultivation patterns was ZGCGX>NH>GCGX>ZGC in 0-20,20-40 cm soil layer,and ZGCGX>GCGX>NH>ZGC in 40-60 cm soil layer. MDA content of root of different soil layer was ZGC>GCGX>NH>ZGCGX at silking stage,and NH>ZGC>GCGX>ZGCGX at milking stage.