Genetic resources of Citrus of north-eastern India and their potential use

Sharma, B. D.; Hore, D. K.; Gupta, Sandhya

doi:10.1023/b:gres.0000023456.70577.3d

Cited by 59 publications

(43 citation statements)

References 3 publications

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“…Domestication of plants also depends upon their utility, however, woody plants and fruit trees figure almost last in sequence of crops, which have been domesticated (Burkill 1951-52). Several species of Citrus still found in wild and semi-wild conditions in northeastern India (Singh and Singh 2003;Sharma et al 2004) need proper attention for their identification, collection and domestication. Tanaka (1937) and Bhattacharya and Dutta (1956) reported no cultivation and use of C. indica, fruits being small and practically inedible hence holding no promise for commercialization.…”

Section: Domestication and Indigenous Technical Knowledgementioning

confidence: 99%

“…As many as 17 Citrus species, their 52 cultivars and 7 probable natural hybrids are reported to have originated in the northeastern region of India (Bhattacharya and Dutta 1956). A recent study on genetic resources of Citrus in northeastern India indicated the presence of 23 species, 1 subspecies and 68 varieties, thus according this area a special status as a treasure house of Citrus germplasm (Sharma et al 2004).…”

Section: Introductionmentioning

confidence: 99%

“…In northeastern India this species is more widely distributed compared to other endangered species such as C. indica and C. latipes. C. macroptera is reported to grow in the Khasi and Garo hills of Meghalaya, North Cachar, Karimganj and Karbi -Anglong districts of Assam, Mizoram, Tripura and Manipur (Bhatttacharya and Dutta 1956; Sharma et al 2004).…”

Section: Introductionmentioning

confidence: 99%

“…Major limitation in undertaking characterization of most of the endangered species is insufficient germplasm availability during collections. Sharma et al (2004) also indicated wide gaps in the knowledge of useful characters of various Citrus species and varieties. Systematic efforts for collection, characterization and conservation of genetic variability of C. indica, are still lacking, while, preliminary physio-chemical characterization of C. macroptera collected from Mizoram and Tripura states has been reported by Hore et al (1997).…”

Section: Introductionmentioning

confidence: 99%

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Collection and Characterization of Citrus indica Tanaka and C. macroptera Montr.: Wild Endangered Species of Northeastern India

Malik

Chaudhury

Dhariwal

et al. 2006

Genet Resour Crop Evol

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Citrus indica and C. macroptera are the wild endangered species of Citrus occurring in northeastern India. Surveys were undertaken in this region for ascertaining distribution, studying variability and for collection of germplasm of these two species. C. indica, an endemic species of this region, was collected from the Citrus Gene Sanctuary located in buffer zone of Nokrek Biosphere Reserve in the Garo hills of Meghalaya. In addition, a putative natural hybrid of C. indica and C. limon was collected for the first time from the south Garo hills. C. macroptera had much wider distribution and was collected from Mizoram and Meghalaya states. In Jantia hills of Meghalaya, natural populations of this species are in a highly threatened state. The two species were unevenly distributed all over the explored territory. Morphological characterization of leaves, fruits and seeds indicated the presence of sizable variability within collected accessions of these two Citrus species. Indigenous technical knowledge gathered on the use and socio-economic importance indicated commercial potential for these two species in northeastern India. However, lack of cultivation of these species and clearing of forest cover at an alarming rate has led to an urgent need to adopt complementary conservation strategies to safeguard these species and to ensure their availability for future utilization. A major emphasis on developing methods for their propagation, multiplication and regeneration in in situ and ex situ conditions is required.

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Section: Domestication and Indigenous Technical Knowledgementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Collection and Characterization of Citrus indica Tanaka and C. macroptera Montr.: Wild Endangered Species of Northeastern India

Malik

Chaudhury

Dhariwal

et al. 2006

Genet Resour Crop Evol

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“…Furthermore, important horticultural characters are reported to be controlled by multiple genes (Campos et al, 2005, Liu andDeng 2007) and are of low heritability. A recent study on genetic resources of Citrus in northeastern India indicated the presence of 23 species, one sub-species and 68 varieties, thus this area acquired a special status as a treasure house of citrus germplasm (Sharma et al, 2004). Thus, morphological characterization could be an essential component since most of the horticultural characters cannot be evaluated through molecular markers.…”

Section: Introductionmentioning

confidence: 99%

Assessment on performance and variability in different sweet orange (Citrus sinensis Obseck) cultivars under Punjab conditions

Baswal

Rattanpal

Uppal

et al. 2017

JANS

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Based on morphological characterization, the performance of eighteen sweet orange, (Citrus sinensis Obseck) cultivars were evaluated. On the basis of two year data, the maximum mean fruit weight (316.25 gm) was recorded in Moro, while the maximum mean fruit diameter and mean fruit length was recorded in Mosambi and Olinda Valencia (87.32 mm and 81.33 mm, respectively). Albedo thickness was recorded maximum in Ruby Nucellar (3.42 mm). Highest total soluble solids was recorded in cultivar Moro (11.45 0 brix), while the titratable acidity was recorded maximum in Valencia Calizonida (1.21 %). Fruit axis diameter and Fruit rind thickness were recorded maximum in Rhode Red Valencia and Vernia (15.12 mm and 8.11 mm, respectively). In the variability studies, the maximum genotypic coefficient of variance (GCV) and phenotypic coefficient of variance (PCV) was recorded maximum for titratable acidity (27.88 and 27.94, respectively) followed by albedo thickness (23.77 and 23.78, respectively) and fruit weight (21.52 and 21.67, respectively). Genetic advance per cent of mean was recorded for titratable acidity (57.31%) followed by albedo thickness (48.96 %) and fruit weight (44.03 %) suggesting that further selection will be effective for improvement in these traits.

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