Development of high yielding sugarcane varieties for rainfed areas: yield multilocation trial of promising sugarcane clones

Abstract

Two promising new sugarcane clones PS 05-370 and PS 06-103 along with control varieties were evaluated for the stability of their performance at ten locations across three years. Parameters observed include cane yield in tonnes cane per hectare (TCH), sugar content or commercial cane sugar (CCS) in %, and sugar yield in tonnes sugar per hectare (TSH). Significant differences were observed in genotypes and locations x genotypes interactions for TCH, CCS and TSH. Additive Main Effect Multiplicative Interaction (AMMI) stability analysis showed that these two sugarcane clones are specific location; grown in inceptisol soil with C3 climate type (Oldeman), sugar productivity (TSH) of PS 05-370 and PS 06-103 increased by 17-21%, compared to standard control variety PS 881. These two promising clones are early to mid maturing varieties and therefore, are recommended to be harvested earlier, to fill up the need for crushed material in the beginning of the milling season.

Yield test of newly collected genotypes of sugarcane under the dry agro-ecological condition

“…There are two possible uses of the promising genotypes found in this study. First, they can be incorporated into the yield multi location trial [6] along with other promising genotypes resulted from the sugarcane crossing program done by ISFCRI. Second, they can be utilized as parental genotypes in crossing programs to develop high-yielding and early maturing varieties.…”

“…The selected genotypes will be used for further assessment for their adaptability in several locations. High-yielding genotypes with high stability will be released as broad spectrums high-yielding varieties, while high-yielding genotypes with narrow adaptations will be released as site-specific varieties [6]. In this study, taking into account the results obtained on the three main characters in sugar industries, namely, TCH, CCS, and SCH (Table 2 and Table 3), the genotypes PI-Pringu and PI-CYZ of the early maturing types were considered promising (figure 1) and selected for further study in the breeding program for increased production in upland areas especially to develop early maturing HYV sugarcane variety.…”

“…The dry, rainfed area is generally characterized as having low to moderate fertility and water availability as limiting factors. The use of high-yielding sugarcane varieties that are tolerant to drought stress is therefore considered imperative [6]. This technology is expected to support the development of sugarcane in areas that have dry agro ecology.…”