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Study points to quality issues in Bt Cotton seeds

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Study points to quality issues in Bt Cotton seeds

[vc_row][vc_column][vc_column_text]Sunderarajan Padmanabhan

The controversy over poor ‘refuge’ for genetically modified cotton, known as Bt Cotton, has taken a new turn with a study showing that not only farmers but seed companies are responsible for the problem.

Conducted by Indian Council of Agricultural Research (ICAR)’s Nagpur-based Central Institute for Cotton Research (CICR), the study has found several lacunae: admixture of the refuge seeds with Bt seeds, poor germination of non-Bt seeds and asynchrony between the Bt and corresponding non-Bt refuge, in contravention of the regulatory guidelines. Researchers have published their findings in the latest issue of journal Current Science.

The purpose of refuge area in which non-GM cotton is grown is to delay the development of resistance in bollworms. The efficacy of refuge depends on the extent of simultaneous flowering and fruiting of the refuge and the main Bt crop. The Genetic Engineering Approval Committee (GEAC) had stipulated that a minimum of five border rows of conventional non-Bt Cotton hybrid of the corresponding Bt hybrid should be planted as refuge around Bt Cotton field. This norm was also subsequently amended to allow planting of pigeon pea as refuge crop. Seeds companies were required to provide a packet of 120 g non-Bt cotton seeds or 200 g of pigeonpea along with every packet of 450 g Bt Cotton seeds.

The study, conducted in 2014 and 2015, has found that seed companies have violated these norms. In the first year, 91 Bt Cotton seed packets were purchased from open market in North and Central India and a random sample of 10 seeds each from the main packet and the non-Bt refuge packet were drawn for the study. The seeds were first analysed to see what they contained. As many as 26 refuge packets had Bt seeds, when they should not have even a trace of them. Clearly there was an admixture of the refuge seeds with Bt seeds.

This was followed by a field trial. It wasconducted at the institute with 45 Bt-refuge seed pairs to study the level of germination and synchrony between them in flowering and fruiting.There was not much difference in terms of germination: all the Bt seeds had a germination of over 75 per cent, while 40 of the refuge had a germination of over 75 per cent and the balance five less than 25 per cent. However, when it came to flowering, for which 40 sets were assessed, there were issues: there was synchrony only in the case of 17 pairs.

In 2015, 30 seed packets were procured from the open market in Central India and studied. Here again 12 packets for refuge seeds were found to contain Bt seeds. On further study, while all the 30 Bt hybrids had a germination of over 75 per cent, only nine refuge seed had a germination of over 75 per cent.

Studies over the years have indicated that the refuge compliance was poor, leading to rapid development of resistance in pink bollworm for CryIAc and Cry2Ab toxins. So far, the blame was laid mainly on the farmers. It was thought that their ignorance of the need for refuge and reluctance to sacrifice land for non-Bt crops that would be vulnerable to bollworm was mainly responsible. The new findings change this.

The study also assumes importance in the context of a proposal to introduce a new concept called ‘refuge in bag (RIB)’ under which the farmers would be provided with a seed mix of 5 per cent non-Bt refuge and 95 per cent Bt seed in a 475 gm packet. The idea is to ensure that famers do not have the choice of avoiding refuge planting. But, it remains to be seen how far it will really help. For, with the present method of testing 10 seeds per packet, monitoring the correct percentage of non-Bt seeds in a bag of Bt seeds is likely to be difficult.

Source: India Science Wire

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MK Stalin predicts frequent PM Modi visits to Tamil Nadu before assembly election

MK Stalin has said Prime Minister Narendra Modi will visit Tamil Nadu more often ahead of the Assembly election, calling the tours politically motivated and questioning the Centre’s support to the state.

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MK Stalin

Tamil Nadu Chief Minister M. K. Stalin has predicted that Prime Minister Narendra Modi will increase his visits to the state as the Assembly election, expected in April or May, draws closer.

Speaking ahead of the polls, the DMK president said the Prime Minister has already begun touring Tamil Nadu and is likely to visit frequently in the coming months. He claimed that such visits could create discomfort within the BJP-led National Democratic Alliance (NDA), as alliance partners may fear the political impact of repeated appearances.

Stalin calls visit politically motivated

The Chief Minister described the Prime Minister’s scheduled programmes in the state as “politically motivated”. PM Modi is set to attend various events in Madurai in southern Tamil Nadu, including the inauguration of the first phase of the AIIMS hospital project. He is also expected to visit the Thiruparankundram Temple amid the Karthigai Deepam-related controversy and participate in a public meeting organised by the NDA.

Stalin said he has been working for all sections of the population, including those who did not vote for his party. In contrast, he remarked that some leaders are visible in the state only during election time and increase their visits as polls approach.

Criticism over Union Budget allocations

The DMK leader also criticised the BJP-led central government, accusing it of neglecting Tamil Nadu. He pointed out that while approval was recently granted for the Gujarat Metro project, there were no major announcements or allocations for Tamil Nadu in the Union Budget.

Stalin asserted that voters would remember the lack of significant measures for the state. He framed the upcoming election as a contest between Tamil Nadu and the NDA, stating that the state should be governed from Fort St George in Chennai rather than from Delhi.

The ruling DMK is currently allied with several smaller parties and, at present, the Congress, as it seeks a third consecutive term in office. Its principal rival, the AIADMK, is aligned with the BJP as part of the NDA.

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Shashi Tharoor questions Centre over Kerala name change to Keralam

Shashi Tharoor has criticised the Centre’s decision to approve renaming Kerala as Keralam, questioning its impact and pointing to the lack of major projects for the state.

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shashi tharoor

Congress MP Shashi Tharoor has criticised the central government over its decision to approve the renaming of Kerala as ‘Keralam’, arguing that the move prioritises symbolism over development.

Reacting to the Union Cabinet’s approval, Tharoor said that the state’s name has always been ‘Keralam’ in Malayalam and questioned the practical impact of introducing the Malayalam term into English usage.

“It has already been ‘Keralam’ in Malayalam. So now, a Malayalam word is coming into English. I don’t know what difference it makes,” he said, adding that the state has not received major projects such as an AIIMS or new institutions from the Centre. He also pointed out that no significant allocations were made for Kerala in the Union Budget.

In a separate post on X, Tharoor raised what he described as a “small linguistic question” about what residents of the state would be called if the name change is implemented. Referring to existing terms such as “Keralite” and “Keralan”, he remarked that alternatives like “Keralamite” sounded like a microbe and “Keralamian” like a rare earth mineral.

The Union Cabinet, chaired by Prime Minister Narendra Modi, cleared the proposal on Tuesday. The move comes ahead of the upcoming state Assembly elections, in which 140 members of the legislative assembly are to be elected. The poll schedule is yet to be announced by the Election Commission of India.

The state assembly had earlier passed a resolution seeking the change in official records. Chief Minister Pinarayi Vijayan had moved the resolution in 2024, urging the Union government to adopt the name ‘Keralam’ in all languages listed in the Eighth Schedule of the Constitution.

He had stated that the demand for a united Kerala for Malayalam-speaking people dates back to the national freedom movement.

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Tamil Nadu potboiler: Now, Sasikala to launch new party ahead of election

Sasikala has announced the launch of a new political party ahead of the Tamil Nadu Assembly elections, positioning herself against AIADMK chief Edappadi K Palaniswami.

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In a significant political development ahead of the Tamil Nadu Assembly elections, expelled AIADMK leader V. K. Sasikala has announced that she will float a new political party and contest the polls by fielding her own candidates.

Speaking in Madurai before heading to Pasumpon for a public event, Sasikala said she would unveil her party’s flag later in the evening. She indicated that more details regarding the party’s structure and plans would be shared at the gathering.

The event venue carries political symbolism. Pasumpon is the birthplace of Thevar leader Muthuramalinga Thevar, and Sasikala herself belongs to the influential Thevar community in southern Tamil Nadu. The programme was held as part of birth anniversary events of former Chief Minister J. Jayalalithaa.

Direct challenge to EPS

Sasikala’s move is being viewed as a direct political challenge to AIADMK general secretary Edappadi K. Palaniswami (EPS). After Jayalalithaa’s death in 2016, Sasikala briefly took control of the party and had appointed Palaniswami as Chief Minister. However, following her conviction in the disproportionate assets case, she served a four-year prison term, and during that period, she was expelled from the party.

Palaniswami later aligned with O. Panneerselvam, whom Sasikala had earlier removed from the Chief Minister’s post. The two leaders subsequently adopted a dual leadership arrangement within the party and government.

Sasikala remains disqualified from contesting elections until 2027 due to her conviction. Nevertheless, she has stated that she intends to field candidates under her new party banner.

Fragmented Thevar vote base

Over the years, expulsions within the AIADMK — including Sasikala, her nephew TTV Dhinakaran and O Panneerselvam — have led to divisions within the Thevar support base. Political observers have linked this fragmentation to the party’s weakened electoral performance in the elections following Jayalalithaa’s passing.

While Dhinakaran has returned to the NDA fold, reports suggest Palaniswami is opposed to any arrangement that includes Sasikala or Panneerselvam. OPS, meanwhile, has exited the NDA.

Sasikala has repeatedly criticised Palaniswami, describing him as a betrayer, while he maintains that his leadership stems from the support of AIADMK legislators rather than her backing.

The AIADMK has not issued an official statement on Sasikala’s announcement. However, a senior party leader questioned her political standing, pointing out her disqualification from contesting elections and referring to legal issues linked to Jayalalithaa’s death.

With the Assembly polls approaching, Sasikala’s re-entry into active politics could further complicate the opposition space in Tamil Nadu and influence electoral calculations, particularly in the southern districts.

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