Fig. 1.

Cotton plant diagram. The first sympodial position bolls from mainstem nodes 9 and 14 are highlighted with the dashed circle.

 


Fig. 2.

Boll's locule mapping. Seeds were numbered, with the seed in the middle of the locule designated as position 0. Seeds from position 0 toward the base were numbered from −1 to −4, while seeds from position 0 toward the apex were numbered from 1 to 4.

 


Fig. 3.

Advanced fiber information system (AFIS) fiber length by weight as a function of seed position for two irrigation treatments (4.32 and 6.33 mm.d−1) in Lamesa, TX, in 2006 and 2007. First sympodial position. a,b denote the mean differences between seed position within irrigation treatments. A, B denote the mean differences between irrigation treatments within seed position. Means with same letter are not significantly different at P = 0.05 level.

 


Fig. 4.

Advanced fiber information system (AFIS) fiber fineness as a function of seed position for two irrigation treatments (4.32 and 6.33 mm.d−1) in Lamesa, TX, in 2006 and 2007. First sympodial position. a,b denote the mean differences between seed position within irrigation treatments. A, B denote the mean differences between irrigation treatments within seed position. Means with same letter are not significantly different at P = 0.05 level.

 


Fig. 5.

Advanced fiber information system (AFIS) fiber fineness as a function of seed position for two cotton cultivars (FM9063B2RF and ST4554B2RF) in Lamesa, TX, in 2006 and 2007. First sympodial position. a,b denote the mean differences between seed position within cotton cultivar treatments. A, B denote the mean differences between cotton cultivar treatments within seed position. Means with same letter are not significantly different at P = 0.05 level.

 


Fig. 6.

Advanced fiber information system (AFIS) maturity ratio as a function of seed position for two irrigation treatments (4.32 and 6.33 mm.d−1) in Lamesa, TX, in 2006 and 2007. First sympodial position. a,b denote the mean differences between seed position within irrigation treatments. A, B denote the mean differences between irrigation treatments within seed position. Means with same letter are not significantly different at P = 0.05 level.

 


Fig. 7.

Advanced fiber information system (AFIS) maturity ratio as a function of seed position for two cotton cultivars (FM9063B2RF and ST4554B2RF) in Lamesa, TX, in 2006 and 2007. First sympodial position. a,b denote the mean differences between seed position within cotton cultivar treatments. A, B denote the mean differences between cotton cultivar treatments within seed position. Means with same letter are not significantly different at P = 0.05 level.