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";s:4:"text";s:17014:"Dernière modification le 28 décembre 2019, à 15:59, Controverse sur les organismes génétiquement modifiés, http://www.monsanto.com/products/Documents/safety-summaries/bollgard_II_pss.pdf, « Mirid Bug Outbreaks in Multiple Crops Correlated with Wide-Scale Adoption of Bt Cotton in China », « GM crop use makes minor pests major problem », https://fr.wikipedia.org/w/index.php?title=Coton_Bt&oldid=165774964, licence Creative Commons attribution, partage dans les mêmes conditions, comment citer les auteurs et mentionner la licence. Bt cotton hybrids became popular due to ‘Bt technology’ which imparts resistance to bollworms, which are a major cause of yield loss in cotton,” he said, adding that with the adoption of these new Bt varieties by the farmers, a major shift is likely to take place in cotton cultivation in northern states. We also reiterate here the promise that our team of reporters, copy editors, fact-checkers, designers, and photographers will deliver quality journalism that stays away from vested interest and political propaganda. They (ICAR) have asked us to put up the proposal regarding releasing of these varieties,” PAU vice-chancellor Dr Baldev Singh Dhillon told The Hindu. At this difficult time, it becomes even more important that we have access to information that has a bearing on our health and well-being, our lives, and livelihoods. In 1995 the EPA granted final clearance for the first Bt-carrying cotton variety, called NuCOTN, released … Punjab Agricultural University in Ludhiana has said that it has developed country's first genetically-modified (Bt) varieties of cotton — the seeds of which could be reused by farmers, resulting in saving the repeated cost they have to bear every season. The Indian Express is now on Telegram. Meanwhile, the process for multiplying the seeds would be started. The first transgenic plant was developed in 1983 in tobacco (Fraley et.al.1983) in U.S.A. Two Bt cotton varieties – PAU Bt 2 and PAU Bt 3 – developed by Punjab Agricultural University, have been identified for North Zone comprising Punjab, Haryana and Rajasthan in the Variety Identification Committee meeting, held under the chairmanship of Dr AK Singh, Deputy Director General (Horticulture and Crop Science), ICAR, in December 2019, the university said in a statement Friday. Monsanto registered their Bt gene technology under the trademark Bollgard®, and authorized selected seed companies to develop cotton varieties carrying the patented gene. Two Bt cotton varieties – PAU Bt 2 and PAU Bt 3 – developed by Punjab Agricultural University, have been identified for North Zone comprising Punjab, Haryana and Rajasthan in the Variety Identification Committee meeting, held under the chairmanship of Dr AK Singh, Deputy Director General (Horticulture and Crop Science), ICAR, in December 2019, the university said in a statement Friday. Bt cotton is supplied in Maharashatra by the agri-biotechnology company Mahyco, which distributes it. SOME BT CORN AND COTTON VARIETIES WOULD BE PHASED OUT. Les cotonniers Bt sont des cultivars de cotonnier de l'espèce Gossypium hirsutum qui ont été modifiées génétiquement par l'ajout du gène leur conférant la capacité de produire un insecticide. Click here to join our channel (@indianexpress) and stay updated with the latest headlines. The introduction of hybrids disallowed seed saving, forcing farmers to purchase new, expensive hybrid Bt cotton seed each year, as hybridisation – unlike pure line varieties – affords one-time vigour. Le coton Bt a été créée par l'ajout de gènes codant pour des cristaux de la toxine Cry dans le groupe de l' endotoxine. PAU Bt 2 and PAU Bt 3 have inbuilt resistance against bollworms, and are moderately resistant to cotton leaf curl disease, fungal foliar diseases and resistant to bacterial leaf blight. On the basis of two year data, PAU Bt 2 and PAU Bt 3 recorded an average seed cotton yield of 2,905 kg/ha and 2,840 kg/ha, respectively against 2,409 kg/ha of non-Bt zonal check variety F 2228. Printable version | Oct 15, 2020 3:18:17 AM | https://www.thehindu.com/news/national/pau-develops-countrys-first-bt-cotton-varieties/article17428499.ece, Railways to take stock of passenger services on a daily basis depending on the needs of the State governments and the status of the pandemic, It has neither funding for free COVID-19 tests nor a migrant database, say activists. Dr. Dhillon said that the notification regarding these varieties could be out by as early as next month after ICAR's scheduled meeting. Le terme « Bt » fait référence au Bacillus thuringiensis dont le gène codant la protéine insecticide a été extrait. As a subscriber, you are not only a beneficiary of our work but also its enabler. You have reached your limit for free articles this month. Les variétés de Monsanto donnent des fibres plus courtes et de moins bonne qualité, ce qui entraîne une baisse catastrophique de la valeur de la production et des invendus sur les marchés internationaux. La dernière modification de cette page a été faite le 28 décembre 2019 à 15:59. The National Cotton Association of Nigeria (NACOTAN), says it plans to ensure that its members have easy access to the new varieties of biotech (Bt) cotton seeds for increased production. While Bt cotton adoption corresponded to a drop in spraying for bollworms, the study states, “countrywide yields stagnated after 2007 even as more farmers began to grow Bt… Both new varieties have good ginning out turn and exhibited superior fibre properties than other compared checks. OnePlus 8T vs OnePlus 8: Which is a better buy? While the PAU Bt 1 was completely developed at Punjab Agricultural University, the F 1861 and RS 2013 varieties were converted to Bt version by Central Institute for Cotton Research (CICR), Nagpur. * The moderation of comments is automated and not cleared manually by, Copyright © 2020 The Indian Express [P] Ltd. All Rights Reserved, Two Bt cotton varieties developed by Punjab Agricultural University identified for cultivation, As BJP footprint grows, Nitish Kumar slips in Muslim base, Railway upgrades tracks to Bihar, some trains now running ahead of schedule, Interview with Bhupendra Yadav, Bihar BJP in-charge, Tej Pratap shifts from Mahua, files nomination from Hasanpur, My govt works for people, RJD’s worked for one family: Nitish Kumar, 8 rallies, 4 lakh ‘smartphone warriors’ for PM Modi, here to join our channel (@indianexpress), OnePlus 8T 5G Launch HIGHLIGHTS: Price in India starts at Rs 42,999, Weather Forecast Today Live Updates: PM Modi assures Andhra, Telangana CMs of all help after heavy rains cause loss of lives, Coronavirus India Live Updates: Samajwadi Party supremo Mulayam Singh Yadav tests positive for Covid-19, Bigg Boss 14 October 14 episode LIVE UPDATES: Eijaz is hurt by Pavitra's decision to nominate him, 19 dead, many missing after heavy rains batter Hyderabad, 'Common man's Diwali in your hands': SC nudges govt to implement loan interest waiver soon, Khaali Peeli, PM Narendra Modi, Thappad: Movies releasing after cinema halls reopen on October 15, Soumitra Chatterjee tests negative for coronavirus, Malala Yousafzai's savage response to Instagram user's 'thirst traps' post wins praise online, Watch: Duo from Andhra Pradesh set record for smashing coconuts while blindfolded, Stop & stare: How Washington Sundar keeps a batsman in check, India's export opportunities could be significant even in a post-COVID world. Subscribe to The Hindu now and get unlimited access. advisory on workers’ welfare lacks implementation mechanism”, Crossword blog #156 | How Cryptics help reconcile the left and the right, In Nagaland, car gifted by father used as free ambulance, A wearable that can track facial expressions while wearing masks, NZ’s oldest surviving Test cricketer John Reid dies at 92, Madras HC dismisses as withdrawn Rajinikanth’s plea against property tax demand for marriage hall, Watch | A canteen that runs on compassion, How bias crept into AI-powered technologies, Kani has proved her mettle, time and again, Die-hard CSK fan in Cuddalore district paints his house yellow, Supreme Court upholds 2011 Madras HC order on T.N. Your support for our journalism is invaluable. Les cotonniers Bt sont des cultivars de cotonnier de l'espèce Gossypium hirsutum qui ont été modifiées génétiquement par l'ajout du gène leur conférant la capacité de produire un insecticide. Un article de Wikipédia, l'encyclopédie libre . While the PAU Bt 1 was completely developed at Punjab Agricultural University, the F 1861 and RS 2013 varieties were converted to Bt version by Central Institute for Cotton … We promise to deliver quality journalism that stays away from vested interest and political propaganda. La culture sur trois millions d'hectares d'un cotonnier Bt, manipulé pour produire un insecticide contre un papillon ravageur, a abouti à la prolifération de la punaise des champs, Adelphocoris lineolatus qui a ravagé 26 millions d'hectares de cultures maraîchères et fruitières, touchant 10 millions de petits exploitants du Hebei et du Shandong. Quixplained: What are the features of Air India One? To enable wide dissemination of news that is in public interest, we have increased the number of articles that can be read free, and extended free trial periods. Le terme « Bt » fait référence au Bacillus thuringiensis dont le gène codant la protéine insecticide a été extrait. En 2010, la revue Science révèle les conséquences indésirables très importantes causées par la culture de cotonniers Bt en Chine du Nord. Lorsque les insectes attaquent et mangent la plante de coton les toxines Cry sont dissous en raison du niveau élevé du pH de l'estomac de l'insecte. The major attraction of the development of Bt varieties is that farmers can produce the seed for next year on their own and will get rid of purchase of costly hybrid seed every year. NACOTAN President, Mr Anibe Achimugu, said this in an interview with the News Agency of Nigeria (NAN), on Tuesday in Abuja. coton Bt - Bt cotton. These varieties were evaluated for two years at five locations of North Zone under All India Coordinated Research Project on Cotton. “The farmers can keep their own harvest for next sowing season. 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