Influence of progressive staling on germination of sugarcane

Abstract

Staling impacts bud-sett moisture and nutrients like sucrose and reducing sugar contents of seed cane/setts. With increase in staling time bud and sett moisture, sucrose % juice decreased whereas total soluble solids and reducing sugars increased. Germination % ( at 45 DAP) and fresh weight of settlings (at 55 DAP) decreased with increasing staling time. Bud moisture affected germination and fresh weight of settlings more than the sett moisture. These growth parameters were positively influenced by sucrose content and negatively by reducing sugars and total soluble solids ( o Brix).The negative influence of the total solids could be due to non-sugars like phenolics, etc.

Influence of Stale Cane Seed on Productivity of Sugarcane in Semi-arid Climate

“…Therefore, more tillers plant -1 is attributed to good germination percentage which helped to produce healthier and better establishment of cane seedlings. Similar trend was observed by Shrivastava et al, (2008).…”

“…The delay in harvest to planting could decrease buds viability of cane seed, thus, can cause failure or exhibit poor sprouting (Jain et al, 2009). Shrivastava et al, (2008) also reported gradual and significant decrease in germination of stalled seed-setts of cane. Zhao et al, (2012) also reported sprouting in sugarcane genotypes was significantly lowered with stalled cane seed.…”

“…are also not only cause physical damage to buds of cane setts but also promotes staleness of seed-cane (Jain et al, 2009). Delay in planting and crushing of fresh cane after cutting can cause decrease in sucrose content, purity, stalk weight (Shrivastava et al, 2008;Liu et al, 2009), increase in reducing sugar (Deng et al, 2002) and fiber content (Qi & Jiang, 2006;Jiang, 2007) which leads to tremendous losses to both farmers and sugar mills. Moreover, the reduction in germination from staled canesetts compared with using fresh seed-setts (Shrivastava et al, 2008;Liu et al, 2009) has an adverse impact on the crop.…”

“…With increase in stalling time, bud & sett moisture and sucrose percentage of juice decreases whereas total soluble solids and reducing sugars increases. Germination percentage and fresh weight of cane seeds decreased with increasing stalling time (Shrivastava et al, 2008). Aging of buds also attributes to lower percentage of sprouting in the bottom portion (Worku, 1992;Das, 2005).…”

Transcriptome and metabolome analyses reveal new insights into chlorophyll, photosynthesis, metal ion and phenylpropanoids related pathways during sugarcane ratoon chlorosis

“…Iron is an essential micronutrient for chlorophyll synthesis [12], and its deficiency is the most common cause of chlorosis [13]. Previous reports indicate that the chlorosis symptoms observed in ratoon sugarcane in Guangxi were similar to iron (Fe) chlorosis found in India, yet, the causal factors appear different [14][15][16]. Excessive Manganese (Mn) had been found in ratoon sugarcane chlorotic plantlets, which are likely to be adversely affecting iron (Fe) uptake and consequently chlorophyll biosynthesis [2,3].…”