Citrullus lanatus (Thunb.) Matsum. & Nakai - Cucurbit Breeding ...

Citrullus lanatus (Thunb.) Matsum. & Nakai - Cucurbit Breeding ... Citrullus lanatus (Thunb.) Matsum. & Nakai - Cucurbit Breeding ...

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Nyquist, W.E. 1991. Estimation of heritability and prediction of selection response in plant populations. Critical Reviews in Plant Sciences. 10: 235-322. Ostle, B. and L.C. Malone. 1988. Statistics in research. Iowa State University Press, Ames, Iowa. Rhodes, B. and F. Dane. 1999. Gene list for watermelon. Cucurbit Genetics Cooperative Report. 22: 61-77. Robinson, H.F., R.E. Comstock, and P.H. Harvey. 1955. Genetic variances in open pollinated varieties of corn. Genetics. 40: 45-60. Sanders, D.C. (ed.). 2004. Vegetable crop guidelines for the Southeastern U.S. 2004-2005. North Carolina Vegetable Growers Association, Raleigh, North Carolina. Schultheis, J.R., W.B. Thompson, W.R. Jester, and B. Taylor. 2005. 2004 Cucurbit cultivar evaluations. Horticultural Research Series. In press. Sharma, R.R. and B. Choudhury. 1988. Studies on some quantitative characters in watermelon (Citrullus lanatus Thunb. Mansf.). I. Inheritance of earliness and fruit weight. Indian Journal of Horticulture. 45: 80-84. Steel, R.G.D., J.H. Torrie, and D.A. Dickey. 1997. Principles and procedures of statistics: a biometrical approach. WCB/McGraw-Hill, Boston, Massachusetts. Warner, J.N. 1952. A method for estimating heritability. Agronomy Journal. 44: 427-430. Wehner, T.C. 2002. Vegetable cultivar descriptions for North America. List 26-2002. HortScience. 37: 15-78. Wright, S. 1968. The genetics of quantitative variability, p. 373-420. In: S. Wright (ed.). Evolution and genetics of populations. University of Chicago Press, Chicago, Il. 89

Table 1. Phenotypic variances by generation for the watermelon families tested for fruit weight in 2004 at Clinton and Kinston, North Carolina z . Pedigree σ 2 (P a) σ 2 (P b) σ 2 (F 1) σ 2 (F 2) σ 2 (BC 1P a) σ 2 (BC 1P b) Clinton 'Carolina Cross #183' × 'Petite Sweet' 29.83 2.59 10.45 28.62 12.81 6.60 'Carolina Cross #183' × 'Minilee' 16.73 0.07 12.07 22.89 37.14 7.30 'Carolina Cross #183' × 'NH Midget' 9.16 1.56 6.57 12.80 17.75 2.70 'Cobbs Gem' × 'Petite Sweet' 16.95 3.15 31.64 23.52 16.30 11.25 'Cobbs Gem' × 'Minilee' 5.84 0.38 5.67 11.22 36.98 7.45 'Cobbs Gem' × 'NH Midget' 35.39 0.10 4.41 13.09 10.12 5.72 'Weeks NC Giant' × 'Petite Sweet' 18.72 1.35 11.21 24.32 21.85 8.34 'Weeks NC Giant' × 'Minilee' 4.32 0.74 5.11 17.86 11.17 16.73 'Weeks NC Giant' × 'NH Midget' 9.63 0.16 4.66 11.70 14.07 3.43 Mean 16.29 1.12 10.20 18.45 19.80 7.72 90

Nyquist, W.E. 1991. Estimation of heritability and prediction of selection response in plant populations. Critical<br />

Reviews in Plant Sciences. 10: 235-322.<br />

Ostle, B. and L.C. Malone. 1988. Statistics in research. Iowa State University Press, Ames, Iowa.<br />

Rhodes, B. and F. Dane. 1999. Gene list for watermelon. <strong>Cucurbit</strong> Genetics Cooperative Report. 22: 61-77.<br />

Robinson, H.F., R.E. Comstock, and P.H. Harvey. 1955. Genetic variances in open pollinated varieties of corn.<br />

Genetics. 40: 45-60.<br />

Sanders, D.C. (ed.). 2004. Vegetable crop guidelines for the Southeastern U.S. 2004-2005. North Carolina<br />

Vegetable Growers Association, Raleigh, North Carolina.<br />

Schultheis, J.R., W.B. Thompson, W.R. Jester, and B. Taylor. 2005. 2004 <strong>Cucurbit</strong> cultivar evaluations.<br />

Horticultural Research Series. In press.<br />

Sharma, R.R. and B. Choudhury. 1988. Studies on some quantitative characters in watermelon (<strong>Citrullus</strong><br />

<strong>lanatus</strong> <strong>Thunb</strong>. Mansf.). I. Inheritance of earliness and fruit weight. Indian Journal of Horticulture. 45:<br />

80-84.<br />

Steel, R.G.D., J.H. Torrie, and D.A. Dickey. 1997. Principles and procedures of statistics: a biometrical<br />

approach. WCB/McGraw-Hill, Boston, Massachusetts.<br />

Warner, J.N. 1952. A method for estimating heritability. Agronomy Journal. 44: 427-430.<br />

Wehner, T.C. 2002. Vegetable cultivar descriptions for North America. List 26-2002. HortScience. 37: 15-78.<br />

Wright, S. 1968. The genetics of quantitative variability, p. 373-420. In: S. Wright (ed.). Evolution and genetics<br />

of populations. University of Chicago Press, Chicago, Il.<br />

89

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