Wheat interplanted in paddyfield,which was a light and predigesting cultivation method,was applied widly in area with planting rice andwheat production.The effects of different plant densities on flag leaves chlorophyll content,SOD activity and MDA content after anthesis in stronggluten wheat interplanted in paddyfield were studied.Chlorophyll content in flag leaves kept declining after anthesis,and the declining rate increased when the density increased.The dry matter accumulation amount after anthesis per stem(DAAA) and grain yield per stem(GYPS) increased with the increase of plant density.DAAA andGYPSwere very significantly negatively correlatedwith plant density.The trendof SOD activ ity in flag leaves after anthesis showed a single peak curve,the maximum value appeared in the period from the 14th to the 16th day after anthesis.MDA content in flag leaves declined after anthesis,which increased when the density in creased.On the 35th day after anthesis,SOD activity in flag leaves had a very significantly positively correlation with DAAA and GYPS,but MDA content in flag leaves had a significantly or very significantly negatively correlation with DAAA and GYPS.
ZHU Xin-kai
,
GUO Kai-quan
,
GUO Wen-shan
,
FENG Chao-nian
,
LI Chun-yan
,
PENG Yong-xin
. Effects of Density on Senescene Characteristics of Strong-gluten Wheat Interplanted in Paddyfield[J]. Acta Agriculturae Boreali-Sinica, 2009
, 24(6)
: 65
-68
.
DOI: 10.7668/hbnxb.2009.06.013
[1] Mahalakshmi V,Bidinger F R.Evalustion of stay green sorgbum germplasm lines at ICRISAT[J].Crop Science,2002,42:965-974.
[2] 施大伟,陈国祥,张成军,等.两种高产小麦旗叶自然衰老过程中生理特性的比较[J].西北农业学报,2005,14(2):23-26.
[3] Thomas H,Howarth C J.Five ways to stay green[J].J Exp Bot,2000,51:329-337.
[4] 靳奇峰,牛俊义.小麦叶片衰老因素的研究进展与展望[J].甘肃农业科技,2003(2):17-19.
[5] 李春喜,姜丽娜,代西梅,等.小麦氮素营养与后期衰老关系的研究[J].麦类作物学报,2000,20(2):39-41.
[6] 王蔚华,郭文善,封超年,等.氮肥运筹对小麦花后剑叶衰老及籽粒发育的影响[J].扬州大学学报:农业与生命科学版,2002,23(4):61-65.
[7] 王志和,姜丽娜,李春喜,等.种植密度和植物生长调节剂对小麦衰老及产量构成的影响[J].作物杂志,2003(2):15-17.
[8] 郭天财,冯伟,赵会杰,等.两种穗型冬小麦品种旗叶光合特性及氮素调控效应[J].作物学报,2004,30(2):115-121.
[9] 贾丽,龚月桦.大穗型小麦豫麦66 的叶片衰老研究及氮代谢[J].干旱地区农业研究,2008,26(2):57-60.
[10] 牛一川,姚天明,安建平,等.地膜覆盖栽培对冬小麦衰老进程的影响[J].麦类作物学报,2004,24(3):90-92.
[11] 罗培高,任正隆,吴先华,等.延缓小麦衰老的结构和生物化学机制[J].科学通报,2006,51(18):2154-2160.
[12] 魏道智,宁书菊.拔节期追施氮肥对小麦根、叶衰老生理特性的影响[J].河北农业大学学报,2003,26(2):15-19.
[13] 于振文,岳寿松,沈成国,等.不同密度对冬小麦开花后叶片衰老和粒重的影响[J].作物学报,1995,21(4):412-418.
