| Nitrogen use efficiency was evaluated in 27 genotypes of waxy corn to utilize as germplasm in breeding program for sustainable agriculture. Yield, yield components and agronomic traits analyzed similarity coefficient by Squared Euclidean and cluster analysis by Ward’s method could separate genotypes into 4 groups depending on ear size, plant height and flowering date. The large ear group gave yield higher than that of the small ear group and showed high value of low nitrogen tolerant index (LNTI) and nitrogen use efficiency (NUE). The genotypes, namely BW, PEK and SLKM showed high NUE, high yield in high nitrogen condition (HN) and low yield in low nitrogen condition (LN). WPP, BW and NSW genotypes showed high value of LNTI, and high yield in both low and... |
