A Correlation and Path Coefficient Analysis of Components in G. hirsutum L. Hybrids by Usual and Fibre Quality Grouping

Shankar Lal AHUJA; Laxman Singh DHAYAL; Ram PRAKASH

Makale detayları

A Correlation and Path Coefficient Analysis of Components in G. hirsutum L. Hybrids by Usual and Fibre Quality Grouping

Yazarlar:

Shankar Lal AHUJA | Laxman Singh DHAYAL | Ram PRAKASH

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Agriculture and Forestry 2006 Vol.30 Issue 5, pp.317-324

Belge Tipi:

Makale

Yayın Tarihi:

4/2006

Belge Dili:

Türkçe

Document ID (Org No.):

2000808837

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X

Anahtar kelimeler:

Özet:

 

Improvement in fibre length is important for the textile industry in utilising high speed yarn spinning technology and in expanding the array of yarn products. High tensile strength fibre is needed for good spinning, especially with fast modern spinning machines. The usual practice of estimating correlation coefficients and the direct and indirect effects of component traits of seed cotton yield is without grouping the genetic material on the basis of fibre length and strength. Hence, the present investigation was carried out on these aspects by grouping the 20 F1 hybrids into 3 sets on the basis of fibre length and strength, viz, (i)  10 hybrids of low fibre strength (£20 g tex-1) and medium staple length (£25.0 mm), (ii) 10 hybrids of high fibre strength (>=24 g tex-1) and  longer fibre length (>=28 mm), and (iv) 20 hybrids, i.e. all the 10 hybrids of set 1 and set 2 of Gossypium hirsutum L. cotton for agronomic and fibre quality traits. Significant genotypic difference existed among the hybrids in all the sets for all the characters studied. The direction of association coefficient of the traits and direct effects on seed cotton yield differed for all the traits except for the number of bolls per plant, boll weight and fibre strength in set 1 and set 2. Set 1 gave the same direction of association with seed cotton yield as obtained in set 3 of usual practice except for the traits ginning out turn (GOT) and days to flowering, whereas set 2 gave similar information to the usual practice for the traits days to flowering, total bolls, boll weight and GOT, and differed for other traits. The present study, therefore, indicates that the hybrid population needs to be grouped on the basis of fibre length and fibre strength prior to estimation of correlation coefficients and direct and indirect effects of other traits on seed cotton yield.

 

Improvement in fibre length is important for the textile industry in utilising high speed yarn spinning technology and in expanding the array of yarn products. High tensile strength fibre is needed for good spinning, especially with fast modern spinning machines. The usual practice of estimating correlation coefficients and the direct and indirect effects of component traits of seed cotton yield is without grouping the genetic material on the basis of fibre length and strength. Hence, the present investigation was carried out on these aspects by grouping the 20 F1 hybrids into 3 sets on the basis of fibre length and strength, viz, (i)  10 hybrids of low fibre strength (£20 g tex-1) and medium staple length (£25.0 mm), (ii) 10 hybrids of high fibre strength (>=24 g tex-1) and  longer fibre length (>=28 mm), and (iv) 20 hybrids, i.e. all the 10 hybrids of set 1 and set 2 of Gossypium hirsutum L. cotton for agronomic and fibre quality traits. Significant genotypic difference existed among the hybrids in all the sets for all the characters studied. The direction of association coefficient of the traits and direct effects on seed cotton yield differed for all the traits except for the number of bolls per plant, boll weight and fibre strength in set 1 and set 2. Set 1 gave the same direction of association with seed cotton yield as obtained in set 3 of usual practice except for the traits ginning out turn (GOT) and days to flowering, whereas set 2 gave similar information to the usual practice for the traits days to flowering, total bolls, boll weight and GOT, and differed for other traits. The present study, therefore, indicates that the hybrid population needs to be grouped on the basis of fibre length and fibre strength prior to estimation of correlation coefficients and direct and indirect effects of other traits on seed cotton yield.

Makale detayları

A Correlation and Path Coefficient Analysis of Components in G. hirsutum L. Hybrids by Usual and Fibre Quality Grouping

Yazarlar:

Shankar Lal AHUJA | Laxman Singh DHAYAL | Ram PRAKASH

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Agriculture and Forestry 2006 Vol.30 Issue 5, pp.317-324

Belge Tipi:

Makale

Yayın Tarihi:

4/2006

Belge Dili:

Türkçe

Document ID (Org No.):

2000808837

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X

Cotton

correlation coefficient

direct and indirect effects

fibre quality

Sayı

Makale detayları

A Correlation and Path Coefficient Analysis of Components in G. hirsutum L. Hybrids by Usual and Fibre Quality Grouping

Yazarlar: Shankar Lal AHUJA | Laxman Singh DHAYAL | Ram PRAKASH

Yayıncı: TUBITAK

Dergi: Turkish Journal of Agriculture and Forestry 2006 Vol.30 Issue 5, pp.317-324

Belge Tipi: Makale

Yayın Tarihi: 4/2006

Belge Dili: Türkçe

Document ID (Org No.): 2000808837

Sıklık: İki Aylık

eISSN: 1303-6173

pISSN: 1300-011X

Cotton

correlation coefficient

direct and indirect effects

fibre quality

Sayı

Yazarlar:

Shankar Lal AHUJA | Laxman Singh DHAYAL | Ram PRAKASH

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Agriculture and Forestry 2006 Vol.30 Issue 5, pp.317-324

Belge Tipi:

Makale

Yayın Tarihi:

4/2006

Belge Dili:

Türkçe

Document ID (Org No.):

2000808837

Sıklık:

İki Aylık

eISSN:

1303-6173

pISSN:

1300-011X