GrowingCrotalaria juncea, a multi-purpose legume, for paper pulp

White, G. A.; Haun, J. R.

doi:10.1007/bf02862829

Cited by 26 publications

(17 citation statements)

References 3 publications

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“…The vegetative data support the prediction of White and Haun (1965) that early-yielding varieties of sunn hemp, such as those in Group 2, would not produce as much biomass as late-maturing varieties (Group 1 accessions) (Fig. 2).…”

Section: Resultssupporting

confidence: 82%

“…4). Previous observations recognize the photoperiod sensitivity of sunn hemp for flower initiation (Nanda, 1962;White and Haun, 1965).…”

Section: Reproductive Parametersmentioning

confidence: 93%

“…In India, it is second to kenaf (Hibiscus cannabinus L.) in importance as a bast fi ber crop, in addition to being one of the most widely grown green manures in the tropics (Purseglove, 1974;White and Haun, 1965). Sunn hemp rapidly establishes canopy closure, competing with weeds, and can produce 5.9 to 7.6 Mg ha -1 of biomass in 12 to 14 wk (Balkcom and Reeves, 2005;Mansoer et al, 1997) while also producing 120 to 144 kg ha -1 of N in 9 to 14 wk (Balkcom and Reeves, 2005;Mansoer et al, 1997).…”

mentioning

confidence: 99%

“…Developed by the University of Hawaii and the USDA-NRCS, the cultivar Tropic Sun has historically been the focus for commercial seed production (Abdul-baki et al, 2001;USDA, 1983). Although Tropic Sun grows well in the southeastern United States, the environmental conditions for seed production cannot be met in subtropical regions where the fi rst fall frost prevents eff ective seed set (White and Haun, 1965 photoperiods that are inductive to flowering are abundant and frost is not an issue. Expansion of sunn hemp seed production to a domestic location, such as southern Florida, could create a local seed source to meet market demands while simultaneously lowering the cost of seed (Abdul-baki et al, 2001).…”

mentioning

confidence: 99%

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Phenotypic Characterization of 16 Accessions of Sunn Hemp in Florida

et al. 2016

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Adoption of sunn hemp (Crotalaria juncea L.) as a cover crop has been limited primarily due to the availability of seed sources, leading to high seed costs and unreliable supplies. Seed production in Florida with the commercially available sunn hemp cultivar Tropic Sun has been largely unsuccessful. An experiment was designed to evaluate 16 accessions of sunn hemp for potential commercial seed production in Florida at three planting dates (May, June, July). Vegetative and reproductive characteristics were evaluated to provide baseline information for future development of a cultivar of sunn hemp that could produce seed in Florida with desirable cover crop attributes. The results indicate that the sunn hemp accessions could be separated into two groups. Regardless of planting date, accessions in Group 1 (PI 234771, PI 248491, PI 295851, PI 337080, PI 468956, PI 561720, PI 652939) displayed desirable cover crop characteristics, such as high biomass production and leaf area. Accessions in Group 1 had a short‐day flowering response and produced few to no pods and seeds. Group 2 accessions (PI 207657, PI 250485, PI 250486, PI 250487, PI 314239, PI 322377, PI 346297, PI 391567, PI 426626) were less sensitive to photoperiod, were generally smaller plants because of earlier transition to reproductive growth, and produced more seedpods and seeds. Seed production was generally better when seeds were sown at the earliest date. It appears that in Florida, sunn hemp accessions that are capable of flowering in summer rather than fall have greater potential for seed production.Core Ideas Based on vegetative and reproductive characteristics sunn hemp accessions could be divided into two groups. Group 1 accessions produce more shoot biomass and have a short‐day flowering response. Flowering occurs in fall when effective pollinators are absent. Group 2 accessions are less sensitive to photoperiod. Group 2 accessions flower in summer when effective pollinators occur and successfully set seed.

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Section: Resultssupporting

confidence: 82%

“…4). Previous observations recognize the photoperiod sensitivity of sunn hemp for flower initiation (Nanda, 1962;White and Haun, 1965).…”

Section: Reproductive Parametersmentioning

confidence: 93%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Phenotypic Characterization of 16 Accessions of Sunn Hemp in Florida

et al. 2016

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“…is not known in wild state. It is the most widely cultivated green manure species of the subtropical and tropical regions (White and Haun 1965;Rotar Peter and Joy Robert 1983;Yost and Evans 1988;Chee and Chen 1992;Hanelt 2001). It ranks second to jute for fibre having more durability, lighter in colour and fairly resistant to moisture, mildew and microorganisms (Royle 1984).…”

Section: Introductionmentioning

confidence: 98%

Diversity assessment of useful Crotalaria species in India for plant genetic resources management

Pandey

Singh

Sharma

et al. 2010

Genet Resour Crop Evol

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Assessment of diversity in cultivated and wild useful Crotalaria L. distributed in different phytogeographical regions of India was made. Sites of germplasm collection were depicted on maps to facilitate planning and execution of collection and conservation programmes. In the present communication, information on useful and potential species of Crotalaria in India has also been documented for widening their scope in plant genetic resources management.

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Crotalarieae (Abb. 127, 128)

Hegnauer¹,

Hegnauer²

2001

Chemotaxonomie Der Pflanzen

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GrowingCrotalaria juncea, a multi-purpose legume, for paper pulp

Cited by 26 publications

References 3 publications

Phenotypic Characterization of 16 Accessions of Sunn Hemp in Florida

Phenotypic Characterization of 16 Accessions of Sunn Hemp in Florida

Diversity assessment of useful Crotalaria species in India for plant genetic resources management

Crotalarieae (Abb. 127, 128)

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