volume 20 issue 3 (september 2000) : 162-164
STABILITY ANALYSIS FOR DIFFERENT PLANT DENSITIES IN DETERMINATE AND INDETERMINATE SOYBEANS
1Deptt. of Genetics and Plant Breeding,
GB.P.U.A. & Tech., Pantnagar 263145, India
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Agricultural Science Digest
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volume 20 issue 3 (september 2000) : 162-164
STABILITY ANALYSIS FOR DIFFERENT PLANT DENSITIES IN DETERMINATE AND INDETERMINATE SOYBEANS
1Deptt. of Genetics and Plant Breeding,
GB.P.U.A. & Tech., Pantnagar 263145, India
ABSTRACT
Twenty soybean varieties (determinate/semideterminate/indeterminate) were evaluated
for stability under four plant densities, viz., 60 x 15cm, 60 x 5cm, 30 x 15 cm and 30 x 5 cm.
Their mean squares due to variety x environment (linear) were significant, indicating that there
were genetic differences among the varieties for regression values. Considering all the three
parameters of stability IX, band S2di), the soybean varieties PK416, PK963, PK471, PK262
and PK327 were stable and ideal varieties as these showed high mean yielcl with unit regression
and least deviation. However, PK472, PK564, PK515 had high mean, b value greater than 1
and non-significant deviation from regression, indicating good response to better environment
(spacing i.e. 30 x 15 cm). Determinate and semi determinate genotype responded similarly at
normal as well as close planting whereas, indeterminate cultivars performed better at normal as
well as higher spacing.
for stability under four plant densities, viz., 60 x 15cm, 60 x 5cm, 30 x 15 cm and 30 x 5 cm.
Their mean squares due to variety x environment (linear) were significant, indicating that there
were genetic differences among the varieties for regression values. Considering all the three
parameters of stability IX, band S2di), the soybean varieties PK416, PK963, PK471, PK262
and PK327 were stable and ideal varieties as these showed high mean yielcl with unit regression
and least deviation. However, PK472, PK564, PK515 had high mean, b value greater than 1
and non-significant deviation from regression, indicating good response to better environment
(spacing i.e. 30 x 15 cm). Determinate and semi determinate genotype responded similarly at
normal as well as close planting whereas, indeterminate cultivars performed better at normal as
well as higher spacing.
KEYWORDS
REFERENCES
- Baihaki, etal.(l976). Crop Sci. 16: 718-721.
- Beaver, J.S. and Johnson. R.R. (1981). Crop Sci. 21: 449-454.
- Cooper. R.L. (1980) In: Proc. Solid seeded conference. Indiana Polis. American Soybean Association. St. Louis. 9-16.
- Cooper, R.L. (1981) Crop Sci. 21: 127-131.
- Eberhart. SA and Russell, WA (1966) Crop Sci. 6 :36-40.
- Walkar, A.K. and Fehr, W.R. (1978). Crop Sci. 18: 719-723.
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In this Article
APC
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Submit your manuscript through user friendly platform and acquire the maximum impact for your research by publishing with ARCC Journals.
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Published In
Agricultural Science Digest