"1586","11","archive","14",,,"disk0/00/00/15/86","2011-09-19 03:38:57","2013-09-14 10:20:46","2011-09-19 03:38:57","article",,,"show","Library-ICRISAT@cgiar.org",,,"","","","","","","","","","","0",,,"Nakamura","T","","","","","","","Adu-Gyamfi","J J","","","","",,,,,"","",,,,,"","","JIRCAS","Japan","Varietal differences in root growth as related to nitrogen uptake by sorghum plants in low-nitrogen environment","pub","s1.4","","","restricted",,,,,,"Hybrid (Sorghum bicolor (L.) Moench cv. CSH 9) and local variety (S. bicolor cv. FSRP) of sorghum were grown in an Alfisol field and in pots of Alfisol in semi-arid tropical India, and the productivity of sorghum in low N condition was studied in relation to N absorption by plant. The grain yield of the hybrid (CSH 9) was higher than that of the local variety (FSRP) irrespective of the rate of N application. The reduction in hybrid grain yield was less than that for the local variety when N was not applied. After booting stage hybrid absorbed more N than the local variety. To estimate the role of roots in N absorption, the characteristics of N absorption were parameterized. Relative growth rate was highly correlated with relative N absorption rate in plant. N absorption was regulated by root activity (specific N absorption rate per unit root mass and length). Specific N absorption rate in roots at physiological maturity was higher in the hybrid than in local variety in low N conditions. Therefore, the smaller reduction of hybrid yield in low-N conditions was ascribed to high-N absorption rate in its roots, and the high ability of roots to absorb N after booting stage.","2002",,,"Plant and Soil","245","1","Kluwer",,"17-24",,,,,,,,,,,"TRUE",,,,,,,,"","http://dx.doi.org/10.1023/A:1020690501576","http://scholar.google.co.in/scholar?as_q=Varietal+differences+in+root+growth+as+related+to+nitrogen+uptake+by+sorghum+plants+in+low-nitrogen+environment&num=10&btnG=Search+Scholar&as_epq=&as_oq=&as_eq=&as_occt=title&as_sauthors=&as_publication=&as_ylo=&as","author",,"","",,,,,,"",,,,,,,"",,,,,"",,,,,"","",,,,,"","",,,,,
"1586",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Adu-Gyamfi","J J","","",,,,,"Ishikawa","S","","",,,,,,,,,,,,,,,"ICRISAT(Kano)","Nigeria",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
"1586",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Yamamoto","A","","",,,,,,,,,,,,,,,,,,,,,,,"Experimental Farm of Tohoku University",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
"1586",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Ishikawa","S","","",,,,,,,,,,,,,,,,,,,,,,,"Hokkaido National Agricultural Experimental Station",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
"1586",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Nakano","H","","",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
"1586",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,"Ito","O","","",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,