Development of dual purpose sorghum: correlation and path-coefficient analysis of grain yield and stem sugar traits

Evaluation of genetic variability for major agro-morphological and stalk sugar traits in African sorghum genotypes

“…In this study a significant positive correlation was observed between plant height and node number, inflorescence length, number of leaves, stem width and days to 50% flowering at r = 0.83, 0.80, 0.81 and 0.65, 0.66) respectively. The positive correlation between plant height and inflorescence length, stem width as well as between days to 50% flowering and number of leaves, stem width has been stated by Makanda, [ 34 ]. On the other hand, the significant correlation (p < 0.05) between plant height and the number of leaves in this study agreed with previous results by Ayana and Bekele [ 35 ] and Abubakar and Bubuche [ 36 ].…”

“…The results indicated the possibility of dual sorghum development. Makanda et al [ 34 ] also identified sweet sorghum varieties that had high grain yields. On the other hand, Gutjahr et al [ 52 ], reported that there was no correlation between stem sugar concentration and grain yield and that the trade-off between grain yield and sugar was small or absent.…”

“…On the other hand, Gutjahr et al [ 52 ], reported that there was no correlation between stem sugar concentration and grain yield and that the trade-off between grain yield and sugar was small or absent. However, Makanda [ 34 ], found a negative correlation between grain yield and stem juice in sorghum. The significant negative correlation between Brix and grain harvest index may be due to the trade-off between grain and sugar yield [ 48 ].…”

Interaksi Genotipe x Lingkungan pada Karakter dan Komponen Hasil Galur-galur Sorgum IPB

“…Hasil analisis korelasi juga menunjukkan nilai Brix tidak berkorelasi nyata terhadap karakter lain yang diamati, diantaranya karakter bobot biji per malai. Hasil yang berbeda ditunjukkan pada penelitian Makanda (2017), yang menyatakan bahwa nilai Brix pada nira batang berkorelasi nyata positif terhadap hasil biji, tetapi mempunyai pengaruh langsung yang nyata negatif. Selain itu, Erickson et al (2011) dalam penelitiannya menunjukkan nilai Brix yang rendah cenderung berhubungan dengan produksi biomassa segar yang lebih besar.…”