| dc.contributor | Universidade Estadual Paulista (UNESP) | |
| dc.creator | Cardoso, AII | |
| dc.date | 2014-05-20T13:19:48Z | |
| dc.date | 2014-05-20T13:19:48Z | |
| dc.date | 2004-03-01 | |
| dc.date.accessioned | 2017-04-05T19:46:23Z | |
| dc.date.available | 2017-04-05T19:46:23Z | |
| dc.identifier | Scientia Agricola. Piracicaba: Univ Sao Paolo, v. 61, n. 2, p. 224-227, 2004. | |
| dc.identifier | 0103-9016 | |
| dc.identifier | http://hdl.handle.net/11449/5322 | |
| dc.identifier | 10.1590/S0103-90162004000200016 | |
| dc.identifier | S0103-90162004000200016 | |
| dc.identifier | WOS:000225443300016 | |
| dc.identifier | WOS000225443300016.pdf | |
| dc.identifier | http://dx.doi.org/10.1590/S0103-90162004000200016 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/854440 | |
| dc.description | The strategy for breeding F-1 hybrid squash is to develop parental lines through self-pollination. However, it increases plant mean homozygosis, which is not the natural genetic state of a cross-pollinated species, and can cause inbreeding depression. The objective of this work was to evaluate this depression with sucessive generations of self-pollination (without selection) in Cucurbita moschata, cv. Piramoita. Populations were obtained from lines with one to four generations of self-pollination (obtained by the SSD method), from the original cv. Piramoita (population SO). Randomized blocks were used with five treatments (different generations of self-pollination -S-0 to S-4), six replicates and five plants per plot. Regression analysis was made by the Wright inbreeding coefficient (F) to measure the homozygosis level effect on vigor loss. There was a linear reduction of mean weight and fruit length, seed production (number and weight) per fruit with the increase of the homozygosis level; however inbreeding did not affect seed quality (weight of 100 seeds and germination). | |
| dc.language | eng | |
| dc.publisher | Universidade de São Paulo (USP) | |
| dc.relation | Scientia Agricola | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.subject | Cucurbita moschata | |
| dc.subject | cucurbits | |
| dc.subject | selfing | |
| dc.title | Depression by inbreeding after four sucessive self-pollination squash generations | |
| dc.type | Otro | |
