INDEX

m-1

1. Enlarged kernel: General response of A> state of 25 to Spm.

2. Hars illustrating response of Ay state to: No Spm, one Spm,
transpositions of Spm. ‘Linkage of As state to Bt; no linkage
with Spm. Associated responses with wen 8,

v.

3. Linkage of Spm with wx locus: + Wx x/active-Spm wx. Response of

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Ao state of Bo

(I) Backross: 8731B-2 © x 8726-2
8735E-1 tiller x " 3 plus variegated pericarp.

to doses of active Spm.

(II) Self-pollinated ear. 8735E-5. Doses of Spm and phenotypes.

/

4, Doses of active Spm and response of A, State with wx/wx; lactive

Spm:
(I) 8737-9 self-pollinated. Ear - 5 photos
(II) " O11 M " . " - 4 ’

(2)
(III)8736E-3 Self-pollinated. Shelled kernels. Var. Pericarp.
~7 (Gv)
5. Backcross ratios. One active Spm in test.
Spm in ear parent:
8738-14 tiller x 8726-2. Ear

8738-8 x 8720-14 with wx™-8, shelled kernels.

Spm in pollen parent:
8585-3 (with wx °) x 8583D-4,. Shelled kernels.
“"-10 " " x " » Shelled kernels.

6. Inactive-Spm with some changes to active. Phenotypes produced.
(1) Two kernels. Inactive > active Spm fattern of pigmentation.
(II). 8738-15 self-pollinated. Section of ear.

(III) 8738-9. Main ear. Two photos.
"oon Tiller-1.x 8720-14 (with wxt-8 ) Full ear,2 photos
" " Enlarged section of ear.
no" Piller-2 x 8726-2. Full ear, 2 photos
soo " now " Enlarged section of ear,3 photos

7. Inactive-Spm Wx/twx female x Active-Spm wx/+ wx male and

reciprocal. Activation of inactive Spm by an active
Spm.

(I) 8583A-5 x 8583D-4 Shelled kernels. (For comparison, see
crosses in section 5 with 8583D-4. )
(II) 8583D-9 x 8583A-11. Shelled kernels.
8.

9.

Inactive-Spm Wx/Active-Spm wx. Self-pollinated ear.
8731A-1. Full ear, 2 photos.
Sections of ear, enlarged, 4 photos.

Distinctive phenotypes given by the NA" 5 and the pale-spotted
states of ant in response to dose and to activity of
Spm.

(I). Q14,B23 tiller-1 x 8726-3. Shelled kernels

(II). wes “ 3-2 x 8720-14 " "

(III )8735A-6, first ear, main stalk. Self pollinated.

(Iv). " " gecond ", " " x 8731B-3 tiller. Shelled Kerne:

(V). 8720-18 tiller-2 x 8731B-3 tiller. Shelled kernels.