Somaiya

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Karnataka Institute of Applied Agricultural Research

Crop : Sugarcane

Field : Agronomy

Collaborator : Self

Title : Standard plot trial for mid-late varieties .

Author : R. B. Khandagave and P.G. Satpute.

Year : 1994-95

This experiment was laid down on 21st February 1994 in Randomised Block Design with Three replications. In this trial 5 sugarcane varieties namely, Co 8011, Co 8014, Co 85246, Co 7219 and Co 7805 included. Juice quality analysis at 10th, 12th and 14th month of their crop age and yield and yield attributes at harvest (14th month) are as presented in table No. 5a and 5b. Details discussion of the results as as described under:-

I. Yield attributes and yield.

Number of internodes varied significantly, Co 8011 (26.77) and Co 7219 (25.97) recording significantly superior over Co 85246 (22.00) Co 8014 (24.63) and Co 7805 (24.33) plant height shown non-significant results. But the cane weight varied significantly. Co 85246 (1.27 Kg) Co 8011 (1.20 Kg) Co 7805 (1.17 Kg) and Co 8014 (1.02 Kg) gave significantly higher mean cane weight over Co 7219 (0.77). With regards N.M.C ('ooo ha-1), Co 7219 (124.74) produced significantly higher N.M.C compared to other all varieties. Yield levels of Co 8011 (114.89 MT ha-1) Co 85246 (114.00 MT ha-1) and Co 7805 (107.26 MT ha-1) were found on par with each other and all these varieties gave significantly superior yield over Co 7219 (96.00 MT). Co 8011 gave significantly higher yield over Co 8014, C.C.S. Percent of Co 85246 (16.58%) produced significantly higher over Co 7805 (15.88) Co 7219 (15.82), Co 8014 (15.74) and Co 8011 (15.14).

II. Juice quality parameters.

Brix(%) of all the ages (10th, 12th and 14th month) of Co 85246 recorded highest and then followed by Co 7219. However Pol (%) of Co 85246 also found significantly higher over rest of the varieties at 14thmonth but result with respect to Pol (%) at 10th and 12th month shown non-significant results. Regarding reducing sugars, fibre and moisture percentage all the varieties gave non-significant results except at 14th and 12th month for fibre and moisture percentage respectively.

Conclusion

From the elucidated results it can be concluded that Co 85246 performed better than Co 8011 and Co 8014 (Present ruling varieties in our area) with respect to C.C.S. Percentage. Therefore, it can produce more sugar per unit area and per unit time without having any ill effect on the cane yield. Hence during Monitoring Committee Meeting which was held on 1st August 1995 it was decided to develop agronomical practices for this elite sugarcane cultivar and the same is being implemented.

Table No. 4a. Table showing the response of sugarcane yield attributes and yield to compost (1993-94).

	No. of	Plant	Mean	N.M.C	Yield	C.C.S
Treatment	internodes	height(cm)	cane wt.	('ooo/ha)	(t/ha)	(%)
			(Kg)
T1	22.70	320.50	1.30	99.08	113.89	12.69
T2	21.92	322.75	1.44	115.93	115.56	12.94
T3	22.13	321.25	1.50	103.61	135.56	13.91
T4	21.98	314.75	1.66	103.52	141.96	14.33
T5	21.65	299.88	1.53	106.11	143.46	14.17
Total:	110.38	1579.13	7.43	528.25	650.43	68.04
Mean	22.08	315.83	1.49	105.65	130.09	13.61
S.E m +	0.7679	12.6868	0.1108	4.8533	9.7736	0.5334
C.D.at 5%	NS	NS	NS	NS	NS	NS
C.V. (%)	6.99	8.73	8.82	11.83	16.95	8.05
NS = Non-significant.

Table No. 4b. Table showing the response of sugarcane quality parameters to compost (1993-94).

			Reducing
Treatment	Brix (%)	Pol (%)	sugars(%)	Fibre (%)	Moisture
					(%)
T1	19.53	16.93	0.678	13.93	69.75
T2	19.83	17.75	0.676	13.83	68.50
T3	20.05	18.50	0.636	13.93	68.50
T4	20.55	19.10	0.700	13.95	68.25
T5	21.15	18.89	0.689	13.88	69.00
Total:	101.11	90.72	3.379	69.52	344.00
Mean	20.22	18.14	0.6758	13.90	68.80
S.E m +	0.8270	0.6594	0.04546	0.1602	1.3284
C.D.at 5%	NS	NS	NS	NS	NS
C.V. (%)	8.28	8.04	11.63	2.17	3.37
NS = Non-significant.

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