Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Studies on the Performances of Some New Genotypes of American Upland Cotton (gossypium Hirsutum L.)

S. BEGUM
Cotton Breeder, & Cotton Agronomist, Central Cotton Research, Training and Seed Multiplication Farm, Sripur, Gazipur-1740

H. R. MIAN
Cotton Breeder, & Cotton Agronomist, Central Cotton Research, Training and Seed Multiplication Farm, Sripur, Gazipur-1740

S. HOSSAIN
Department of Agriculture Extension, Khamarbari, Dhaka-1215

N. AKTER
Assistant Editor, SAIC, BARC, Dhaka-1215

Abstract/ Executive Summary:

Three-years field study on assessment of planting, yield, yield contributing characters and fiber quality of seven new cotton genotypes with control cultivar CB-9 were studied at the Central Cotton Research, Training & Seed Multiplication Farm, Sripur, Gazipur, Bangladesh. The result showed that higher yield (2583 kg/ha) was obtained from genotype SR-05 which was closely followed by SR-01 (2422.12 kg/ha). Significant variations among the genotypes were also observed for node number of 1st fruiting branches (NFB), days to 50% flowering, days to 50% boll split, plant height at harvest, weight of seed cotton/boll, and seed cotton yield. Besides seed cotton yield, the weight of seed cotton/ boll, as well as quality, were found superior. The pooled data showed that genotype SR-05 produced 40.57% more seed cotton yield than the control variety CB-9. Results revealed that the superior performance of SR-05 was mainly due to its highest seed cotton/boll. Beside, only SR-05 bears okra-leaf type and others normally shaped leaves.

Keywords: Cotton, Cultivar/genotype, Okra-leaf, Seed cotton yield, GOT, Quality

Location: Central Cotton Research, Training & Seed Multiplication Farm, Sripur, Gazipu district, Bangladesh

Start Date: 00-00-2002

End Date: 00-00-2005

Program Area: Crop-Soil-Water Management

Commodity: Cotton, Upland

Objectives:

To test the yield and quality performance of that line through comparing the agronomic and ginning characteristics with the existing CDB varieties as control.

Methodology:

Experiments were conducted at the Central Cotton Research, Training & Seed Multiplication Farm, Sripur, Gazipur during seasons of three consecutive years i.e., 2002-03, 2003-04 and 2004-05. In each season the isogenic lines and control variety were sown in mid to last week of July. The experimental design was a randomized complete block with three replications. Plot size was 10 m x 3.6 m. The 7 (seven) cotton genotypes obtained from 7 crosses (seed parent X pollen parent) included as treatment materials: 1) SR-01= (P1 x P3) = (DL-90 X DL-41) 2) SR-02= (P1 x P4) = (DL-90 X K-502) 3) SR-03= (P1 x P6) = (DL-90 X BAC-159) 4) SR-04= (P2 x P3) = (DL-50 X DL-41) 5) SR-05= (P2 x P6) = (DL-50 X BAC-159) 6) SR-06= (P3 x P4) = (DL-41 X K-502) 7) SR-07= (P3 x P5) = (DL-50 X BAC-81) Seven lines were derived from an initial hybridization of some Deltapine-related experimental line and one cultivar (CB-9) used as local check. Among the 6 parent lines, only BAC-159 was okra-leaf. Three or four seeds were sown at a spacing 90cm row to row and 60cm hill to hill during planting, but after final thinning one seedling per hill was allowed. Green manuring and decomposed cowdung (2t/ha) were applied before final land preparation. All chemical fertilizers such as TSP, MP, Gypsum, Borax, ZnSO4 and Urea were applied at the rate of 175, 175, 100, 10, 10 and 50 kg/ha, respectively, during final land preparation as basal dose. Only Urea @50kg/ha was applied 3 times as side-dressing at 3, 6 and 9 weeks after planting. Recommended agronomic practices were followed during the period. Heavy shower during August and September 2004 were 554 and6 plant growth. Each year data were analyzed separately. Data on plant characters were recorded from the middle two rows (10m x 1.8m) from every unit plot in order to avoid border effects. Yield data were converted from the plot area (10m x1.8m) to kg/ha. Ten plants were chosen at random from each plot to observe node number of 1st fruiting branches (NFB), plant height at harvest and average weight of seed cotton/boll. Days to 1st flower and days to 1st boll split were recorded when 50% plants have a flower and an open boll, respectively. All the genotypes and cultivars were short-hairy type, except SR-05. SR-05 produced glabrous leaves. All the genotypes and cultivar produced normally shaped leaves, but only SR-05 showed okra leaf type leaves among the eight genotypes. Statistical analysis was performed for all characters according to Zaman et al., (1982).

Source of Information: SAARC JOURNAL OF AGRICULTURE, VOLUME 4, DECEMBER 2006; ISSN: 1682-8348

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Remarkable differences of yield and quality were found among the various characteristics of 7 genotypes and one cultivar during the experimentation. Genotype SR-05 produced the highest seed cotton yield followed by SR-01, which were 40.57% and 31.81%, respectively, higher than genotype CB-9 (control). Boll weight of the cultivar was comparable to that of the commercial check CB-9. Beside, average weight of seed cotton/ boll (5.68g) was higher which resulted highest seed cotton yield. Farmers prefer this cultivar because of its high yield. Though bundle strength of all the genotypes were same but fibre length was highest in SR-06. The genotype SR-05 proved itself as a high yield potential cultivar over the existing variety (CB-9). Some desired plant characters eg., 50% flowering days, 50% boll split days, weight of seed cotton/ boll, seed cotton yield and fibre bundle strength were possessed better by this genotype.

Knowledge Management: Journal