Performance of ginger genotypes on growth, yield and quality traits under Mizoram condition

Abstract

Mizoram has an excellent suitability for quality ginger production. Although productivity has shown an improving trend, the yield is still meagre as cultivation is dominated by local genotypes that are poor yielders. There is also a lack of systemic findings and recommendations to provide the detailed performance of high yielding genotypes with nearly similar in quality to local genotypes suitable for Mizoram. Therefore, a field experiment was carried out to evaluate the performance of ginger genotypes for three consecutive years (2019, 2020 & 2021). The experiment consists of seven genotypes (Gurubathani, Bold Nadia, Bhaise, John's ginger, PGS 121, PGS 95 and PGS 102) as treatments with RBD design having three replications. Fifteen observations were recorded to identify potential substitute for low yielding local genotypes to improve the overall production of ginger cultivation in Mizoram. Bhaise has recorded significantly highest rhizome yield (10.20 t/ha), number of tillers/plant at maturity (4.13); chlorophyll ‘b’ (0.47 mg/g) and total chlorophyll (1.77 mg/g) at 90 DAP. Moreover, the genotype Bold Nadia has recorded highest fresh weight of clump (177.59 g), dry recovery (24.29 %) and chlorophyll ‘a’ at 90 DAP (1.30 mg/g). Also, PGS 102 and Gurubathani have recorded at par yield of the above genotypes. Correlation analysis was performed to study the degree and direction of relationship between traits. The yield of rhizome has high positive significant correlation with fresh weight of clump (r = 0.817*). From the experiment it can be concluded that genotypes like Bold Nadia, Bhaise, PGS 102 and Gorubathani have performed best in terms of high fresh weight of clump, rhizome yield and other yield contributing traits. Whereas, for dry ginger purpose, Bold Nadia has performed best. Therefore, these genotypes are found suitable for large scale cultivation of ginger in Mizoram.