MORPHOLOGY, GENETICS AND BREEDING 



77 



Average Coefficients of Variability for Different Plot Dimensions Where 

 ' Replications Consist of 6 Assumed Varieties. 



16 



15 



14 



13 



12 



11 



10 



9 



8 



7 



a 



Plot Size {Number of 12^-foot single-row units) 



Inheritance Studies 



Van der Stok (74) reported that red testa and light red testa segre- 

 gated three dark red to one light red in the Fj. Badami, Hayes, Hull, 

 Patel et al., and Stokes and Hull (1, 30, 36, 48, 69) have studied the 

 inheritance of various characters in the peanut. Hull (36) summarizes 

 the genetic results vi^hich had been published by 1937. His summary fol- 

 lows :* 



"1. Red seed dominant to russet or tan (3:1), Van der Stok (74), Badami (2), 

 Stokes and Hull (69), Hayes (30). Four colors purple, red, rose, and white, 

 with genes Pp.Rdrd, Riri, R2r2, Patel (48). 



2. Prostrate habit dominant to erect, two factors, Badami (2) ; (15:1) Hayes 

 (30) ; duplicate genes, Patel, (48). 



3. Chlorophyll ; three factors with triple dominant dark green and triple re- 

 cessive albino, Badami (2) ; two genes, Patel (48). 



4. Dark red stem dominant to light red (3:1), Hayes (30). Violet tinge domi- 

 nant, appears to be associated with hardiness, Badami (2). Purple stem, dup- 

 licate genes, Patel (48). 



5. Long seed dominant to short (15:1), Hayes (30). 



6. Fertile dominant to sterile, complementary (15:1), Hayes (30). 



7. Normal leaf dominant to crinkled leaf, complementary (15:1), Hayes (30). 



* This is quoted exactly except that the present writers have altered the reference numbers so 

 that they now correspond to the references cited at the end of this chapter. 



