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Effect of Drought Stress on Yield and Yield Components of Sugarcane

M. K. Begum
Bangladesh Sugarcane Research Institute, Ishurdi-6620, Pabna, Bangladesh.

M. S. Islam
Bangladesh Sugarcane Research Institute, Ishurdi-6620, Pabna, Bangladesh.

Abstract/ Executive Summary:

The performance of fourteen sugarcane genotypes under drought stress was evaluated during 2008-2009 cropping season at Patuadangi farm of Regional Sugarcane Research Station (RSRS) Thakurgoan and at farmers’ field, Jealmari (Rajshahi). Under drought stress tillers, millable canes, stalk height, stalk diameter affected yield indicating usefulness of these parameters in identifying drought tolerant genotypes. The clones I 124-00, I 95-01, I 145-02, I 78-03, I 111-03, I 99-01, , Isd 32 & Isd 36 produced better cane yield in control condition in Rajshahi location but only the genotypes I 95-01, Isd 35 & Isd 36 produced better cane yield both under control and stress condition. In Thakurgaon location also the genotypes I 95-01, Isd 32 & Isd 36 showed better performance in yield and yield contributing characters under both the control and stress condition. Under stress, the tolerant genotypes showed higher productivity, stalk number, height and diameter than the susceptible one. Linear association was found between productivity and its yield components.

Keywords: Tiller, Millable cane, Stalk height, Stalk diameter, Yield

Location: Jealmari (Rajshahi) and Patuadangi farm, RSRS (Thakurgaon)

Start Date: 00-11-2008

End Date: 00-12-2009

Program Area: Crop-Soil-Water Management

Commodity: Sugarcane

Objectives:

1. To investigate the relationships of stalk number, stalk height and stalk diameter with cane yield for sugarcane growing in a field under natural water stress during its grand growth period in order to provide information to help breeders in adopting traits for selecting drought tolerant varieties.

Methodology:

The experiments were conducted at drought prone locations such as Jealmari (Rajshahi) and Patuadangi farm, RSRS (Thakurgaon). Fourteen genotypes were tested at both Jealmari (Rajshahi) and at Patuadangi farm, RSRS (Thakurgaon) locations. The experiments were laid out in RCB design with three replications. The experiment was set up on 1st November at Jealmari (Rajshahi) and 3rd November at RSRS (Thakurgaon) locations. Two budded setts were planted at trenches following end to end method of planting. NPKS fertilizers were applied @ 325 kg urea, 250 kg TSP, 190 kg MP, 180 kg Gypsum and 9 kg ZnS0₄ per hectare. Urea was application in 3 splits and MP was applied in two splits. All necessary cultural practices without irrigation were done as and when required. Required irrigation were given only in control plots and in the stressed plots there were given only one irrigation after plantation only for settling establishment. Data were recorded on tiller count, millable canes, stalk height, stalk diameter and yield. Soil PH, Organic carbon(%), N(%), P(ppm), K(meq) and S(ppm) were 7.2, 0.66, 0.06, 11.0, 0.20 and 17.0 at Jealmari (Rajshahi) location and 5.3, 1.15, 0.08, 20.0, 0.12 and 18.0 at Patuadangi farm, RSRS (Thakurgaon) location respectively. Due to low PH nutrients availability was lower at Patuadangi farm, RSRS (Thakurgaon) location. So, the soil was recorded as poor at Patuadangi farm, RSRS (Thakurgaon) location than Jealmari (Rajshahi) location.

Source of Information: J. Agrofor. Environ. 6 (1): 105-109, 2012; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Under drought stress tillers, millable canes, stalk height, stalk diameter affected yield indicating usefulness of these parameters in identifying drought tolerant genotypes. The clones I 124-00, I 95-01, I 145-02, I 78-03, I 111-03, I 99-01, , Isd 32 & Isd 36 produced better cane yield in control condition in Rajshahi location but only the genotypes I 95-01, Isd 35 & Isd 36 produced better cane yield both under control and stress condition. In Thakurgaon location also the genotypes I 95-01, Isd 32 & Isd 36 showed better performance in yield and yield contributing characters under both the control and stress condition. Under stress, the tolerant genotypes showed higher productivity, stalk number, height and diameter than the susceptible one. Linear association was found between productivity and its yield components.

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