p.s.

Problema dėl sėklų nebuvimo iš viso neegzistuoja, nes tokia GM 
technologija sukurta, ją nupirko Monsanto, bet ji dar nekomercializuota. 
Taigi, tame straipsnelyje parašytas MELAS. tai vėl ta pati wikipedia, 
ištrauka iš straipsnelio apie GMO:


"An often cited controversy is a "Technology Protection" technology 
dubbed 'Terminator'.[60] This uncommercialized technology would allow 
the production of first generation crops that would not generate seeds 
in the second generation because the plants yield sterile seeds. The 
patent for this so-called "terminator" gene technology is owned by Delta 
and Pine Land Company and the United States Department of Agriculture. 
Delta and Pine Land was bought by Monsanto Company in August 2006. 
Similarly, the hypothetical trait-specific Genetic Use Restriction 
Technology, also known as 'Traitor' or 'T-GURT', requires application of 
a chemical to genetically modified crops to reactivate engineered 
traits.[60][61] This technology is intended both to limit the spread of 
genetically engineered plants, and to require farmers to pay yearly to 
reactivate the genetically engineered traits of their crops. Genetic Use 
Restriction Technology is under development by companies including 
Monsanto and AstraZeneca.

In addition to the commercial protection of proprietary technology in 
self-pollinating crops such as soybean (a generally contentious issue), 
another purpose of the terminator gene is to prevent the escape of 
genetically modified traits from cross-pollinating crops into wild-type 
species by sterilizing any resultant hybrids. Some environmentalist 
groups, while considering outcrossing of GM plants dangerous, felt the 
technology would prevent re-use of seed by farmers growing such 
terminator varieties in the developing world and was ostensibly a means 
to exercise patent claims.[citation needed] However other environmental 
groups welcomed the terminator gene as a means of preventing GM crops 
from mixing with natural crops.[citation needed]

Hybrid seeds were commonly used in the developed countries long before 
the introduction of GM crops. Hybrid seeds cannot be saved, so 
purchasing new seed every year is already a standard agricultural practice.

There are technologies evolving which contain the transgene by 
biological means and still can provide fertile seeds using fertility 
restorer functions. Such methods are being developed by several EU 
research programs, among them Transcontainer and Co-Extra."


Ir, kaip jau minėjau, jau seniai pilna yra tradicinių hibridinių 
veislių, kurios neduoda sėklų.







2011.03.25 10:47, fkt rašė:
>
> "RaR"<RaR@lt.lt>  wrote in message news:imhkbi$ksu$1@trimpas.omnitel.net...
>
>> na visų pirma derliui sumažėjus jo nelieka pelnui, bet kažkiek sėklom lieka.
>> tu taip jau labai supranti arba juoda arba balta.
>> arba derlius su dideliu pelnu, arba išvis nulis.
>
> Jeigu derliaus nulis - tai ir iš nesterilių veislių sėklos nulis. Jei ne
> nulis - tai iš nesterilių veislių derliaus lieka bent sėklai, o iš
> sterilių - už parduotą produkciją gali gauti pinigų bent sėklai pirkti.
>
>
>
> nu tai gal kvotos kokios nors, kad tiek kiek lieka sėklai nieks nesupirkinėja.
> pas mus gi panašiai kad po šimtą kg runkelių nepriduosi.
>
>
> O šiaip jau niekur neradau, kad BT medvilnė yra sterili. Beje, paskaityk
> rimtesnių šaltinių su faktais ir nuorodomis kaip sėkmingai Indijoje
> įdiegiama BT medvilnė. "Bt-Cotton in India: Remarkable Adoption and
> Benefits"
> http://www.fbae.org/2009/FBAE/website/our-position-bt-cotton.html.
>
>
> hm, tada belieka mistika dėl smegenų poveikio dėl polinkio į nusinuodyjimą :)