32 BULLETIN 14738, U. S. DEPARTMENT OF AGRICULTURE 
COMPARISON OF ONE PLANT EERE NOHES WITH TWO PLANTS EVERY 12 
One plant every 12 inches was compared with two plants every 12 
inches. (Table 15.) In 14 out of 15 side-by-side comparisons, two 
plants every 12 inches produced more cotton than one plant every 
12 inches. The single exception in which the block with one plant 
every 12 inches outyielded two plants every 12 inches was by the 
slight margin of 0.1 pound. The higher yields from the closer spac- 
ing are indicated in Figure 15, which shows graphically the row yields 
for the two spacings. 
TasLe 15.—Comparative yields in cotton-spacing experiment with single plants 12 
inches apart and two plants-12 inches apart, Greenville, Tex., 1925 
[The rows, which were 100 feet long, were planted Apr. 13 and thinned June1 (when the plants were 
about 54% inches high and were bearing about seven true leaves). The first picking was Sept. 4 and 
the second one Oct. 17] 
Section 1 Section 2 Section 3 
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& | Yield of seedcot-| & | Yield ofseedcot-| & | Yield of seed cot- 
= | ton (pounds) = ton (pounds) = ton (pounds) 
Spacing | S | S 
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Two plants every 12 |} 2} 204/ 2.4; 1.1] 3.5] 193 2.0} 1.0) 3.0] 205} 1.9] 1.5 | 3.4 
inches (block 1) ----- Bil M04 Dot. (ed |p seoNl eval sone SUP ROR tie ea eal ILS Ose 
4 || 204 2.3] 1.0) | als a05)|" 2.11 19.1 83. Onl. tone 22) eee aa 
Motels 25. 83 | 810] 78:9 | 4.3] 18. 25] *780)/ 8.5 | siz | 12:2) |/Pzeel) 82 as eo 
My SOD | giz | StS 2 DEI LORE erie S 8.1 e264) goose 1es | eeeOn amor 
One® plant every 127|] 2 | You.) S156.|- 122°|) 258 |< 100k = eS le) 29)! MOUs) aol ests en inon eee 
inches (block 2) ----- 3]. 99,1). 126 | 51-0 2-Galy one 1.9 | ) S9n! 2258)) 1034 Talat alee 
a | 100 15857 IT 129) Ota et | sh! 3225) 02) Slee eae 
Totaleeece aero _...| 402| 67] 41/108] 401 | 7.6 |: 387 | 10. 3512 408 |! 16x44) anon eres 
stp ee BORCe a eee TOY Ca imei cola Gian PAG eS ORR 
Two plants every 12 |} 2 198 | 2.0 We Ae shy 194} 2.2 LO) S52 22202 1.9 1.6 3.5 
inches (block 3) -_--- B95.) Wasp Wisie 26s) 104 ie 222 | sds 173. 2:] og) | oan alts tal eoeaas 
4| 203| 1.6) 14) 30) 18) 21] 12] 33] 198] 21) 10) 31 
Ao tal eee went ----| 785 | 68} 52/120] 766] 86] 43/129] 793] &4/ 50] 134 
1 | 95.2.0) to ah] og)| 18" io 7a eon aa een eee 
One. plant.-every 12) 2) 103 |) "1.5-| at | 26) 103) 19) |= iS mea 1Oln ie oie On ees 
inches (block 4) --.-- 3]. 98 | de Sale 1.0ih, 2.8) | 104 || 3120) 189) 99271100) pea al en een 
A) AOU | AB. 2.15225: | 105 |, 8208 eeOe| p29 | ORs souls oO smear 
Motale: ewe a Leccl 89% | 5.7 | 458 | 10x08 4085) 7.6 (2314 (01001), 4Ooe 705d pane eis 
t| 195 | a.8-|- 1.4] 3:99 a868| 2 1-| caso |) 3.14) ag4 | Saol sos ene > 
Two plants every 12 |) 2.) 191) 93.6 | 123 | 229s 1961/2 2 || 150.) $3523). 188) 23g aed 3.4 
inches (block 5) ----- S| 42044) 15} Fe 1a) 256) 205 | 2.4 128 lk S201 1961e ohn ele eee 
4.) 202°] 1.8 | 1.4 | 98:2. ). 186], 2.3 | 150) || 8.34] e188ile 2:6l a1. Qhlresas 
Mo alGeet 2 52 ----| 792] 67] 5.2|11.9] 773] 90] 38]|128]| 7561104! 46] 15.0 
LOG eal) ol One oadalie Oia ait. Z|. 204 F086 230) Sek Ole rseS 
One plant every 12|}2| 97/ 1.9] 1.0] 2.9] 100] 20 Yb OF ba OOche Qedal -dendeltna ges 
inches (block 6) ----- 3| 100) 1.4] 1.0] 241 1031 22 8.1/4.9) 0. |r 108 | Dubs ded eas 
4| 99| 16 G6: | b2.2N| OOK 25 8) 31) 102) 2a Dies 
Datalee sees: er. --s.| 396 | .6.6| 3.6 | 10.24 403+ 8 2 | 3.0 | 11.24) 402) Solgtt Sis i aeha 
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