Rukia hadi maudhuiScholarGate
MaktabaMaktaba yanguDawatiReview StudioMsaidizi
Ingia
Participatory Varietal Selection/Ushahidi
Rekodi ya ushahidi wa mbinu

Participatory Varietal Selection

Participatory varietal selection (PVS) is a participatory crop-improvement method in which farmers choose, grow, and evaluate finished or near-finished cultivars on their own fields under their own management, so that the varieties identified are the ones farmers actually prefer and will adopt. Formalized by John Witcombe and colleagues in 1996 as the faster, cheaper sibling of participatory plant breeding, PVS responds to the problem that conventional varietal release — selection on research stations against breeder criteria — often produces varieties that fail in farmers' fields or ignore traits farmers value, leaving the formal seed system with low adoption in marginal, heterogeneous environments. By moving the final stage of selection onto farms and into farmers' hands, PVS rapidly screens existing genetic material for fitness to real growing conditions and real preferences.

Sources recorded, not reviewed

Rekodi ya chanzo

Nukuu zimehamishwa kwa uhalisi kutoka kwa rekodi ya chanzo cha mbinu. Hakuna uthibitisho wa kiwango cha dai unaodokezwa kutoka kwao.

Participatory Varietal Selection (PVS; Farmer-Led Testing of Finished Cultivars)
Rekodi ya mbinu ya kiajenda · process-pipeline / food-agriculture-studies
  • Witcombe, J. R., Joshi, A., Joshi, K. D., & Sthapit, B. R. (1996). Farmer Participatory Crop Improvement. I. Varietal Selection and Breeding Methods and Their Impact on Biodiversity. Experimental Agriculture, 32(4), 445-460. · DOI 10.1017/S0014479700001526
  • Snapp, S. (2002). Quantifying Farmer Evaluation of Technologies: The Mother and Baby Trial Design. In M. R. Bellon & J. Reeves (Eds.), Quantitative Analysis of Data from Participatory Methods in Plant Breeding (pp. 9-17). Mexico, DF: CIMMYT. · URL
Fungua mbinu kamili

Madai yaliyotunzwa

Madai yamehifadhiwa katika daftari la ushahidi, kila moja ikiwa na tathmini yake.

Hakuna madai yaliyotunzwa bado

Mwonekano huu haubuni tathmini ya dai wakati daftari haina yoyote.

Mbinu zinazohusiana

Zilizotengenezwa kutoka kwa grafu ya mbinu na kuonyeshwa kama uhusiano uliopendekezwa na mashine — hakuna dai la ushahidi linalodokezwa.

Same method familyAgroecosystem Analysismachine-suggested · Relational suggestion, not evidence.Same method familyFarming Systems Research and Extensionmachine-suggested · Relational suggestion, not evidence.Same method familyMother-Baby Trial Designmachine-suggested · Relational suggestion, not evidence.Same method familyOn-Farm Agrobiodiversity Indexmachine-suggested · Relational suggestion, not evidence.

Hali ya ushahidi

Sources recorded, not reviewed

Bibliographic sources are present. Claim-level evidence review has not been performed.

Vyanzo

2 nukuu zilizorekodiwa, ziliyonakiliwa kutoka kwa rekodi ya chanzo cha mbinu.

Vitendo

Fungua ukurasa wa mbinu
ScholarGate

Maktaba ya marejeleo inayotanguliza maudhui kwa mbinu za utafiti — kila moja ni nini, inavyofanya kazi, na inakotoka.

Data huria (CC-BY)

Gundua

  • Maktaba
  • Tafuta mbinu…
  • Vinjari kwa nyanja
  • Nyanja
  • Safari
  • Linganisha
  • Mbinu ipi?

Marejeo

  • Taaluma
  • Atlas
  • Kamusi ya istilahi
  • Mbinu
  • Falsafa

Eneo la kazi

  • Maktaba yangu
  • Dawati
  • Gumzo

Kampuni

  • Kuhusu
  • Bei
  • Wasiliana nasi
  • Pendekeza mbinu

Maingizo yamekusanywa kutoka vyanzo vilivyochapishwa kwa madhumuni ya marejeo. Kuthibitisha usahihi na ufaafu wa taarifa yoyote kwa matumizi yako mwenyewe kunabaki kuwa jukumu lako.

© 2026 ScholarGate · Maktaba ya marejeleo ya mbinu za utafiti
  • Faragha
  • Vidakuzi
  • Masharti
  • Futa akaunti