Page 396 outcrossing. Hungarian proved very uneven in ripening some of the heads being green at a time when others had been fully dry for two weeks. created serious difficulties in combining.
The results from sunflower observation plots are given in Table 25.
Table 25.-Results from Sunflower Observation Plots, 1947-48 (All rows 28 inches, except where otherwise stated)
This
I. Kongwa.
Variety
Date of Date of Planting
Harvest
Days to Harvest
Yield, lbs./acre
(a) Red or transitional soils:
Southern Cross
Jupiter
Pole Star
Saturn
·
+
Black seeded giant
Grey seeded giant
...
..
...
Hungarian
Hungarian
Hungarian
Hungarian
101
(b) Grey brown valley soil:
Hungarian
II. Urambo.
(a) Red soil:
Southern Cross
Jupiter
...
•
Pole Star ...
Saturn
...
Black seeded giant Grey seeded giant Hungarian 9 in. Hungarian 18 in. Hungarian 36 in.
(b) Grey soil:
Southern Cross Jupiter
Pole Star Saturn
...
Black seeded giant Grey seeded giant Hungarian 9 in. Hungarian 18 in. Hungarian 36 in.
III. Southern Province.
Namanga red loam:
Southern Cross
Jupiter
Pole Star
Saturn
Black seeded giant Grey seeded giant Hungarian
...
...
...
...
...
•
...
...
01.
13/1
10/5
118
770
13/1
8/5
116
778
13/1
7/5
115
1,255
12/1
...
10/5
119
1,153
12/1
7/5
116
450
12/1
10/5
119
...
650
12/1
7/5
116
1,317
14/1
2/5
109
1,162
23/2
22/6
120
232
23/2
22/6
120
502
18/1
19/5
122
209
...
24/1
Failed
24/1
12/6
140
215
24/1
8/6
136
697
14/1
14/6
142
252
24/1
7/6
135
386
24/1
12/6
140
600
-
...
27/2
14/6
107
436
27/2
14/6
107
614
27/2
14/6
107
496
10/2
24/6
135
339
10/2
24/6
135
263
10/2
24/6
135
299
10/2
24/6
135
740
10/2
24/6
135
614
10/2
8/7
149
646
***
9/2
3/6
114
691
9/2
3/6
114
564
9/2
3/6
114
457
...
...
...
...
| | |
66
69
20
382
359
488
195
105
Yields in the Southern and Western Provinces were undoubtedly depressed by late planting and nutritional deficiencies. At Kongwa, late plantings in a some- what dry season gave relatively poor yields, but the January plantings were satisfactory.
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