Primocane-Fruiting Black Raspberry Breeding Program - Pete Tallman
Primocane-Fruiting Black Raspberry Breeding Program - Pete Tallman
Primocane-Fruiting Black Raspberry Breeding Program - Pete Tallman
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Explorer Berries<br />
Avg. 1.8 to 2.0g<br />
first pick<br />
Max berry to<br />
date 2.69 g<br />
Size declines<br />
through season<br />
10/3/2005<br />
(2.35 g, 2.34g)<br />
Toward Thornless<br />
Explorer is significantly less thorny than standard<br />
black raspberry cultivars on upper portions of canes<br />
Base of canes thorny; berry clusters thorny<br />
Leaves less thorny than other cultivars<br />
2/17/13 <strong>Pete</strong>r H. <strong>Tallman</strong> 49<br />
2/17/13 <strong>Pete</strong>r H. <strong>Tallman</strong><br />
50<br />
Progress W1 to Explorer<br />
W1 10/1991<br />
Explorer 8/23/2005<br />
2/17/13 <strong>Pete</strong>r H. <strong>Tallman</strong><br />
51<br />
Backup Selection PT-2A4<br />
Selected Summer/Fall 2006 (as 9866.2.A.4)<br />
F 3 generation from cross (CB x (W1 x selfed))<br />
Bigger berries, smaller seeds, more<br />
productive than Explorer<br />
Held back -- don’t disturb Explorer program<br />
Confirmed self-fruitful summer 2008 (whew!)<br />
Really thorny (sigh!)<br />
2/17/13 <strong>Pete</strong>r H. <strong>Tallman</strong><br />
53<br />
Show-Stopper in Summer 2008<br />
Trials found Explorer wasn’t self-fruitful<br />
Confirmed by bagging, hand pollination<br />
experiments – suspected pollen sterile<br />
Explorer can produce with outside pollinator<br />
2/17/13 <strong>Pete</strong>r H. <strong>Tallman</strong><br />
52<br />
Selection PT-2A4<br />
8/11/2012<br />
2/17/13 <strong>Pete</strong>r H. <strong>Tallman</strong><br />
54<br />
9
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