A site suitability analysis for castor (Ricinus communis L.) production during Brazil's second harvest incorporating disease prediction

Witt, Travis W.; Flynn, K. Colton; Zóz, Tiago; Lee, Trey O.; Monteiro, J. M. G.

doi:10.1016/j.heliyon.2023.e18981

Cited by 2 publications

(5 citation statements)

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“…Temperature is a well-known factor controlling seed germination in many plant species [4,9,11,22,32], and it was confirmed in castor, which is a tropical plant adapted to temperatures in the warm range [1]. The optimal temperature for castor seed germination was found to be near 31 °C (Figure 3).…”

Section: Temperature Plays a Pivotal Role In Castor Seed Germinationmentioning

confidence: 89%

“…Table 3. Medians of morphological traits in the original castor seed of the cultivar BRS Energia (S0) and on the three generation of single-seed selection for fast germination (S1 to S3) 1 .…”

Section: Selection For Fast Germination Influencing Morphological Cha...mentioning

confidence: 99%

“…Castor (Ricinus communis, Euphorbiaceae) is an industrial crop predominantly cultivated in tropical and semi-arid regions of the world [1]. Castor oil is valuable as a versatile raw material used as an ingredient in a long list of components such plastics, adhesives, lubricants, paints, waxes, and much more [2].…”

Section: Introductionmentioning

confidence: 99%

“…Castor oil is valuable as a versatile raw material used as an ingredient in a long list of components such plastics, adhesives, lubricants, paints, waxes, and much more [2]. Castor crop is being increasingly adopted as an option for crop rotation in intensive cropping systems, such as in the high-input and fully mechanized soybean-corn-cotton system that predominates in Brazil [1].…”

Section: Introductionmentioning

confidence: 99%

“…Comparison of morphological characteristics between germinated and ungerminated castor seeds1 . The means followed by the same letter in the line are statistically equal by t test (p < 0.05).…”

mentioning

confidence: 99%

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Studies on the Germination and Emergence of Castor Seedlings

Severino

2024

Seeds

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Castor (Ricinus communis) is an oilseed usually cultivated in tropical and semi-arid conditions. The slow and uneven germination of castor seed is causing poor crop establishment and reduced seed yield. This series of studies investigated several factors influencing the time for castor seed germination and seedling emergence. Studies were made on the effect of seed coat permeability to water and the influences of temperature, morphology, and the hormone gibberellin. The best temperature for castor seed germination was near 31 °C, and the seed coat was permeable to water. The mechanical resistance of the seed coat was a mechanism controlling the germination of the castor seed. The time for germination was strongly associated with the seed coat relative weight, but it had little influence from other morphological characteristics. After the castor plants were subjected to three cycles of selection for fast germination, the seed weight was reduced, the caruncle became larger, and the seed coat became thinner. Gibberellin applied to the seed promoted a faster and higher germination rate. Pre-germination of the castor seed was not effective for promoting faster seedling emergence. Attempts to improve castor seed germination should integrate the many factors that influence this physiological process.

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