Recent Promising Selection               

Courtesy: Sugarcane Breeding Institute, Coimbature

Ever since inception of sugarcane breeding institute, Regional center, karnal, the mandate had been to evolve varieties for sub-tropical region of the country. Following three approaches have been adopted to achieve this objective:

1. Evaluation and selection from seeding
2. Evaluation and selection from Co releases
3. Evaluation and selection from elite material derived from various crop improvement project from the main institute

In the past important varieties were commercially exploited, viz. Co 285, Co 312, Cok 26, Cok 32, Cok 41, Co 975, Co 1148, Co 1328, Co 1341, Co 62339, Co 7717 and Co 89003. the recent promising selection are as follow;

Co 98014

Co 98014 is a progeny of the cross Co 8316 x Co 8213. It showed significant improvement over Coj 64 with respect to cane yield and sugar yield. However, these were numerically better than Coj 64 fro sucrose % in juice from 8th months onward. The improvement in sucrose 5 was more at 12 month. Its jaggery is of brown color with b-grade. This clone is MS to the prevalent races of red rot pathogen by plug method of inoculation. However, it showed resistant reaction by nodal method of inoculation. Performance of Co 981014 was significant superior to Co 1148 under water stress and water logging conditions.

Co 98014 has medium thin greenish yellow canes with conoidal internodes and long lanceolate auricle on one side. This clone is free from spines, splits, pith, bud groove and bud cushion.

Co 98015

Co 98015 is a progeny of the cross Coj 64 x Co 7915. this clone showed significant improvement over Coj 64 with respect to cane yield and sugar yield. However, it was numerically better than Coj 64 from sucrose % in juice and from 8th month onwards. The improvement in sucrose 5 was more at 12th month. Its jaggery is of brown color with A2-grade. this clone is MR to the prevelant races of red rot pathogen by plug method if inoculation. Co 98015 is tolerant to moderate saline condition.

Co 98015 has medium thick yellowish canes having cylindrical internodes with broad leaves and lanceolate auricle on one side. But groove and split are absent but bud cushion is present. Very light deciduous spines and medium pith are present.

Co 0120

It was selected from the open pollinated population of Co 89003. The seedlings were raised at Karnal and this clone (K96-399) was selected in the seedling Ratoon as it showed 24.0 HR Brix during 1st fortnight of October. This clone was significant superior to Coj 64 for sugar yield where as it was on par with Coj 64 for cane yield. For sucrose % in juice, Co 0120 was significant superior to Coj 64 from November onwards. During 1st week of October, this clone showed 2% higher HR Brix to Coj 64. Its jaggery is of yellow color with a1-grade. The clone is MR to prevalent races of red rot. The clone is expected to give better sugar recovery if crushed during early in the season. Co 0120 has thin greenish yellow canes with cylindrical internodes, erect leaves and small dentiod auricle. But groove is prominent extending to at least 3/4th of Internode length. The clone is free from spines, splits, pith and bud cushion.

Co 97009

It is progeny of the cross Co 740 x MS68/47. On the basis of its performance in Tamilnadu, this clone was brought to karnal for judging its suitability under local condition. The clone was evaluated in pre-zonal varietal trial in 1999-2000 and was selected. At present this clone is under evaluation at different center of north western zone under All India Coordinated Research Project on sugarcane.

Co 97009 was significant superior for cane yield, sugar yield and sucrose % in juice at 12th month crop age. The clone is MR to prevalent races of red rot pathogen.

It has medium thick green canes with conoidal internodes and dentoid auricle on both sides. Bud groove is short and shallow. The clone is free from spines, splits, pith and bud cushion

Co 97016

Co 97016 is a progeny of the cross ISH-063xCo 8209. This  clone showed significant improvement over Co 1148 with respect to cane yield, sugar yield and sucrose % in juice. It was numerically better than Cos 767 for sucrose % in juice at 10th and 12th months and was MR to the prevalent races of red rot pathogen by plug method of inoculation. Its jaggery is of light yellow color with b-grade. Performance of Co 97016 was significant superior to Co 1148 under water logging and saline condition.

Co 97016 has medium thick yellow canes with conoidal internodes and dentoid auricle on one side. The clone is free from spines and splits. Bud cushion and shallow bud groove are present.

Co 97017

Co 97017 was selected from the open pollinated population of ISH-021. It showed significant improvement over Co 1148 with respect to cane yield, sugar yield and sucrose % in juice. this clone was numerically better than Cos 767 for sucrose % in juice at 10th and 12th months. Its jaggery is of brown color with b-grade. It was MR to the prevalent race of red rot pathogen by plug method of inoculation. Co 97017 is tolerant to water logging condition.

Co 97017 has medium thick yellowish green canes with cylindrical internodes and long lanceolate auricle on one side. The clone is free from splits and bud groove. Bud cushion, medium pith, deciduous spines are present.

Co 98016

It is progeny of the cross Co 7314xCo 1148. the seedlings were raised at Karnal and the clone was selected in the seedling ratoon. this clone was significant superior to Cos 767 for cane yield and sugar yield. However, Co 98016 was numerically better than this standard for sucrose % in juice. Its jaggery is of brown color with A2-grade. The clone is MR to prevalent races of red rot pathogen. Co 98016 is tolerant to water logging and saline conditions.

It is medium thick cane with cylindrical internodes and very long lanceolate auricle on one side. The clone is free from splits, bud cushion and spines. Bud groove is short and shallow.

At present Co 97009, Co 97016, Co 97017, Co 98014, Co 98015 and Co 98016 are under evaluation are different center of North Western Zone under All India Coordinated Research Project on Sugarcane. Twelve Co-Operative sugar mills in Punjab are assessing the performance of Co 97009, Co 98014 and Co 98015 in their mill areas. The seed of these clones have also been supplied to many sugar mills in Punjab, UP and Haryana.