Comparative Study for Seed Cotton Yield and Fibre Quality Parameters in Cotton (Gossypium sp. L.)

Aim: To understand the effect of Cotton Leaf Curl Disease incidence and severity at various crop growth stages on Bollgaurd-II cotton hybrids having different levels of susceptibility and resistance and its effect on, seed cotton yield and fibre quality. Methodology: The effect of cotton leaf curl disease (CLCuD) incidence, severity and its progress on highly resistant to susceptible cultivars was compared. The loss of seed cotton yield (SCY) corresponding to CLCuD incidence at 80 DAS, 81-110 DAS, 111-140 DAS was estimated separately in each hybrid. The loss of fibre quality corresponding to CLCuD incidence at seven different stages, i.e., 50 to 140 days after sowing (DAS) was also calculated. Results: The highest relative area under disease progress curve (AUDPC) values of PDI were observed in Ankur 3028 (100%) and Ankur Jai BG II (83%), while the lowest values were recorded in highly resistant hybrids Yuva-841-2 (4.6%) and Bunty 2113-2 (13.8%). When the disease appeared up to 80 DAS compared to 110, 140 DAS the reduction range in SCY (4.6-62.4%), fibre length (23.9-29.9%), strength (21.4-30.1%) and uniformity (62.5-83%) was recorded to be higher in susceptible hybrids. The fibre length, strength, and uniformity were reduced in diseased plant (25.9 mm, 24.4 g/tex, 68.2%) when incidence took place at 50 DAS compared to disease-free plants (27.6mm, 25.9 g/tex, 72.9%). However, reduction in SCY, fiber length, fiber strength and uniformity at 80 DAS varied with respect to hybrid and their resistance category. Interpretation: These results provide the basis to prove the hypothesis that the yield loss is associated with the stage of CLCuD incidence and its severity in cotton hybrids with different levels of resistance as well as its genetic potential of a particular cotton cultivar. However, the extent of yield reduction within the resistant or susceptible category is also dependent on the yield potential of a particular cultivar. Thus, breeders must consider both the criteria-lower PDI /AUDPC and higher productivity to select high yielding cotton lines. Key words: Cotton, Disease index, Leaf Curl Disease, Virus

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Study of heterosis for seed cotton yield, yield contributing and fibre quality traits in Desi cotton (Gossypeum arborium L.)

INTERNATIONAL JOURNAL PLANT SCIENCES ◽

10.15740/has/ijps/13.1/158-164 ◽

2018 ◽

Vol 13 (1) ◽

pp. 158-164

Author(s):

K.M. Lokesh ◽

S.B. Borgaonkar ◽

D.B. Deosarkar ◽

V.N. Chinchane

Keyword(s):

Quality Traits ◽

Fibre Quality ◽

Cotton Yield ◽

Seed Cotton ◽

Seed Cotton Yield

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Study of combining ability analysis for seed cotton yield, yield contributing and fibre quality traits in Desi cotton (Gossypium arboreum L.)

INTERNATIONAL JOURNAL PLANT SCIENCES ◽

10.15740/has/ijps/13.1/35-41 ◽

2018 ◽

Vol 13 (1) ◽

pp. 35-41

Author(s):

K.S. Thombre ◽

D.B. Deosarkar ◽

V.N. Chinchane ◽

S.B. Borgaonkar

Keyword(s):

Combining Ability ◽

Quality Traits ◽

Fibre Quality ◽

Gossypium Arboreum ◽

Cotton Yield ◽

Seed Cotton ◽

Seed Cotton Yield ◽

Combining Ability Analysis

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PLANT SPACING AND ITS EFFECT ON YIELD, FIBRE QUALITY AND PHYSIOLOGICAL PARAMETERS IN COTTON

Journal of Applied Life Sciences and Environment - Summer ◽

10.46909/journalalse-2021-018 ◽

2021 ◽

Vol 186 (2) ◽

pp. 200-215

Author(s):

Rojda Altundag ◽

Emine Karademir

Keyword(s):

Leaf Area ◽

Chlorophyll Content ◽

Canopy Temperature ◽

Physiological Parameters ◽

Fibre Quality ◽

Plant Spacing ◽

Cotton Yield ◽

Seed Cotton ◽

Seed Cotton Yield ◽

Fibre Yield

The purpose of this study was to see how changing plant spacings affected cotton yield, yield components, fibre quality traits, and physiological parameters. In this study, six plant spacings (no thinning, 5, 10, 15, 20, and 25 cm) were investigated. Plant density caused significant differences in the number of first fruiting branches, number of bolls, ginning percentage, seed cotton yield, fibre yield, and normalised difference vegetative index (NDVI). Plant height, the number of sympodial branches, number of monopodial branches, boll weight, seed cotton weight/boll, number of 100-seed weight, seeds/boll, canopy temperature, chlorophyll content, leaf area, and fibre quality properties (micronaire, length, strength, elongation, uniformity, short fibre index, reflectance, yellowness, and spinning consistency index [SCI] were non-significant. The highest values of seed cotton yield, fibre yield, ginning percentage, number of first fruiting branches, and NDVI were obtained in the no thinning and 5 cm plant spacing applications, while the highest boll number was obtained at 20 and 25 cm plant spacings. In this study, physiological parameters, such as canopy temperature, leaf area, chlorophyll content, and fibre technological traits, were not affected by plant spacing. The highest seed cotton yield, fibre yield, ginning percentage and NDVI were obtained from no thinning and 5 cm intra-row spacing, indicating their impact on examined characteristics. Therefore, a yield estimation can be made in the flowering period with the NDVI in different plant densities in cotton.

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