水稻品种叶源量及其组成因素研究  

Studies on Leaf Source Capacity and Its Components in Rice Varieties

作　　者：朱新华 徐生 曹树青 丁伦友 翟虎渠 张荣铣 

机构地区：[1]南京市农业技术推广站,江苏南京210008 [2]农业部作物种质资源与育种重点开放实验室,江苏南京210095 [3]农业部作物生长调控重点开放实验室,江苏南京210095

出　　处：《南京农专学报》1999年第4期13-16,共4页Journal of Nanjing Agricultural Technology College

基　　金：南京市科委资助!( 97农 2 0 5 )

摘　　要：以汕优63和NAU303为材料,比较研究了两者的叶源量,结果表明:NAU303的剑叶叶源量大,较汕优63高179倍;光合速率高值持续期及最大光合速率均与叶源量呈极显著正相关,相关系数分别为09053和09561(P<001);叶源量与单株产量及产量构成因素千粒重、每穗总粒数和每穗实粒数呈极显著正相关,相关系数分别为08013,09701,09862和08530(P<001),而与结实率相关性不显著。Leaf source capacity (LSC) was studied in Shanyou 63 and NAU 303. The results showed that LSC of NAU303 was 1 79 times as much as that of Shanyou 63. The correlation between LSC and photosynthetic active duration (PAD), maximum photosynthetic rate (Pmax) was both positively significant (r=0 905 3  ,0 956 1  ).LSC was also significantly positively correlated with yield per plant, 1 000 grain weight, total kernels per spike and full kernels per spike (r=0 801 3  ,0 970 1  ,0 986 2  and 0 853 0  ), and less with frequency of seed set.

关 键 词：叶源量 单株产量 产量构成因素 水稻 

分 类 号：S511.033[农业科学—作物学]