Varieties NCo376 and N14 are the most widely grown varieties in Zimbabwe and are used as control varieties in the selection programme. The success of NCo376 was due to its high yield potential throughout the year and its ability to maintain good yields, even in advanced ratoons. A study was done to compare the performances of N14 and NCo376 in the South-East Lowveld of Zimbabwe, using data from...

The results of two field trials to determine the effect of ratoon stunting disease on the growth and yield of some widely grown and newly released sugarcane varieties are described. In the plant crop of a trial grown under full irrigation, the greatest reductions in yields of cane and sugar among six varieties, approximately 15%, occurred in N 14 and NC0376. In the first ratoon, the greatest re...

using productivity index for investigating a firms’ performance makes it possible to evaluate efficiency of the production system and cost at the same time. in this study the total factor productivity (tfp) of several sugar cane varieties in imam khomeini cultivation and processing center in khuzestan province is compared. two hundred and forty eight farms are categorized on the basis of variet...

The sugarcane borer, Diatraea saccharalis (F.) (Lepidoptera: Crambidae), is the key insect pest of sugarcane, Saccharum spp., grown in Louisiana. For more than 40 years, Louisiana sugarcane farmers have used a value of 10% internodes bored at harvest as the economic injury level (EIL). Three plant-cane studies were conducted to re-evaluate the long-standing sugarcane borer EIL level using the m...

In a field trial conducted with eight varieties in the north coast area of Natal ratoon stunting disease (RSD) caused increasing lossesin yieldsof cane and sucrosefrom the plant to the second ratoon crop. All the varieties suffered losses in yield but the degree of loss differed markedly among the varieties. The total yield of sugar from the three crops was reduced by 38% in varieties NCo 376an...

Sugar cane is one of the most successful tropical crops, with many agronomic factors in its favour such as high yield, tolerance of a wide range of soils, resistance-to pests, a perennial growth habit, and a sophisticated supportive technology providing improved varieties and cultural practices. It is still grown almost exclusively for sugar production; however, a number of alternative uses hav...

The aim of the present experience was to evaluate the harvesting systems on the basis of trash content of raw material and the losses of millable cane, as a consequence of the harvesting operation. The analysed harvesting alternatives include differences in mechanical, semi-mechanical and manual systems and they have been evaluated in plots of 960 m2 of a same uniform sugar cane field, the test...

Imimiature interniodes of sugar canie contain an aci(l in% ertase witlh optinmuiim activity between pH 5.0 and 5.5 (1.2). The level of this enzynme shovws marke(d seasonal variation, being high w-hen growth is rapid an(l low otherwise. Acidl invertase is absenit fromii mature interno(les of sugar cane varieties wvith a high capacity for sugar storage, whiclh instea(l containi a neutral invertas...