Development of Database of Maize Hybrids and Open Pollinated Varieties Released and Notified for Cultivation in India

Kaul, J. L.; Kumar, Ramesh; Nara, Usha; Jain, Khushbu; Olakh, D. S.; Tiwari, Tanu; Yadav, Om Prakash; Dass, Sain

doi:10.5539/jas.v9n10p105

Cited by 3 publications

(3 citation statements)

References 3 publications

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“…The inbred V 407 is the seed parent of early maturity single‐cross hybrids VMH 53 (released for cultivation in northern hill region of India) (Agrawal et al, 2015) and CMVL 55 (released for cultivation in northern hill region and peninsular region of India) (Mahajan et al, 2017). The narrow‐base population CM 152 is the seed parent of VMH 15 (released for cultivation in the northern hill and peninsular regions of India) (Kaul et al, 2010). Both V 407 and CM 152 combine well with many early‐maturity Indian maize inbreds (unpublished data).…”

Section: Resultsmentioning

confidence: 99%

New liguleless (lg2) maize stocks: Genetic resources for leaf architectural and haploid induction rate assessment studies

Khulbe,

Pattanayak,

Sharma

et al. 2023

Plant Breeding

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Liguleless mutants produce defective ligules and auricles and, consequently, have more upright leaves than their ligulate counterparts, making them useful genetic material for plant architectural studies. Besides, owing to the recessive nature and amenability of the liguleless trait to phenotyping at the seedling stage, liguleless mutants are popularly used for ‘proof‐of‐concept’ demonstration and assessment of haploid induction rate (HIR) of haploid inducer lines (HILs) in maize. The commonly used liguleless testers in maize are of temperate origin and are challenging to use and maintain under tropical/sub‐tropical conditions. In the present study, liguleless lines (V 601, V 602, V 603 and V 604) derived from crosses between agronomically superior locally adapted tropical ligulate lines (V 407 and CM 152) and liguleless donors of temperate origin (PDH‐3 and PDH‐8) were evaluated for different agro‐morphological traits. Liguleless line V 602 was also used as a tester to assess the HIR of haploid inducer line EC937890 (CIM2GTAILP2). The results showed a mean HIR of 12.42% for EC937890, consistent with the HIR reported in other studies, thus demonstrating the efficacy of V 602 as a tester for determining HIR. The agronomically superior liguleless maize lines reported in this study will, therefore, be a valuable resource for leaf architectural studies, assessment of HIR of candidate HILs and maintenance of high HIR in the HILs presently in wide use in the doubled haploid (DH) programmes. Additionally, these genetic stocks carry the liguleless trait in genetic backgrounds with known heterotic affinity with early maturity Indian public maize germplasm and, therefore, can be used directly as parents in hybrid development programmes.

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Section: Resultsmentioning

confidence: 99%

New liguleless (lg2) maize stocks: Genetic resources for leaf architectural and haploid induction rate assessment studies

Khulbe,

Pattanayak,

Sharma

et al. 2023

Plant Breeding

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“…Since only notified varieties will be under the purview of Seed Law Enforcement, hence it is necessary to bring the seed of a particular crop variety under notification system. The seed inspector can only draw a sample from notified variety for analysis and ensure the seed quality [10,11]. A released variety cannot come under seed chain without notification by the Gazette of India.…”

Section: Necessity Of Notificationmentioning

confidence: 99%

Varietal Release, Notification and Denotification System in India

Chand¹,

Chandra²,

Indu³

et al. 2021

Plant Breeding - Current and Future Views

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Agriculture is the backbone of India and improved agricultural practices principally depend on the use of newly evolved improved variety. In the Indian scenario, a statutory varietal release system is working where notification and denotification process are playing a crucial role in quality regulation of seed. Crop research institutes of ICAR (Indian Council of Agricultural Research), SAUs (State Agricultural Universities) and private seed companies are the main pillars to develop improved varieties in India. The thumb rule is, the improved variety must have a higher yield compared to the existing one (national and state check varieties) and this is ensured via several multilocational evaluations at a different level. This article covers the Indian regulatory system of variety release, evaluation process at a different level, and the importance of notification and denotification. This information will help the scientific community in regards to suggesting improved variety for general cultivation by farmers.

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“…With the launch of All India Coordinated Maize Improvement Project (AICMIP) later re-christened as All India Coordinated Research Project on maize (AICRP on maize) in 1957 at Pusa Campus, New Delhi, a strong foundation for systematic varietal development was laid (Dhillon et al, 2006). Between 1961 and 2017, a total 348 cultivars of maize emanated from public and proprietary breeding programmes in the country (Kaul et al, 2017). Majority of the released cultivars are of NM type possessing yellow F / SF kernels.…”

Section: Varietal Development In Maize (And Qpm) In Indiamentioning

confidence: 99%