垄厢栽培对水稻结实期剑叶生理性状和产量的影响  

Effects of ridge-bed cultivation on physiological characteristics of flag leaf and grain yield during grain filling

作　　者：扈婷[1] 陆准[1] 姚林[1] 贺慧[1] 刘建霞[1] 郑华斌[1] 陈杨[1] 黄璜[1] 

机构地区：[1]湖南农业大学农学院,湖南长沙410128

出　　处：《湖南农业大学学报（自然科学版）》2013年第1期1-6,共6页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：国家水稻丰产科技工程项目(2013BAD07B11)

摘　　要：选用3个水稻品种Y两优一号、黄华占和汕优63,比较了3种栽培方式(梯式窄垄、梯式宽垄、厢式宽垄)对水稻结实期剑叶生理特性和产量的影响。结果表明:梯式窄垄和梯式宽垄栽培,水稻剑叶的叶绿素含量高,叶片衰老慢,具有较高的净光合速率,且有利于保护性酶CAT、POD活性的提高;常规栽培(水种)和厢式宽垄栽培(相当于旱种),水稻剑叶叶绿素含量低,衰老快,保护性酶活性变化较大,酶活性下降幅度分别为24%～44%、28%～46%;梯式窄垄栽培产量最高,梯式宽垄产量次之,分别比常规栽培高27.17%和12.12%,厢式宽垄栽培产量稍高于常规栽培,但差异无统计学意义。In this study, physiological characteristics of flag leaf and grain yield during grain filling were investigated under conventional cultivation （TO） and different ridge cultivations including narrow ridge with terrace （T 1）, wide ridgewith terrace （T2） and wide ridge with bed （T3） for rice varieties Y Liangyou 1, Huanghuazhan and Shanyou 63. The results showed under T1 and T2 cultivation, flag leaf chlorophyll content of rice was high with slowed leaf aging andhigher net photosynthetic rate, which was conducive to the improvement of the protective enzyme activity to maintain normal cell metabolic. Under T0 and T3 cultivation, rice flag leaf chlorophyll content was low with fast aging, and theenzyme activity decreased by 24%M4%, 28%-46%, respectively. It was showed that grain yield in T1 cultivation was the highest, followed by T2 and T3 cultivation, grain yield of T3 cultivation was slightly higher than that of the TO cultivation,but the difference did not reach statistical significance.

关 键 词：水稻 垄厢栽培 生理性状 产量 结实期 

分 类 号：S511.048[农业科学—作物学]