Research Article Morphological, physiological, and biochemical indicators of quality in tobacco fruits and seeds

Andrade, Dayliane Bernardes de; Silva, H.P.; Carvalho, María Laene Moreira de; Oliveira, A. S.; Santos, Heloísa Oliveira dos; Neta, Izabel Costa Silva

doi:10.4238/gmr18058

Cited by 4 publications

(6 citation statements)

References 39 publications

(35 reference statements)

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“…Esterase participates in ester hydrolysis reactions and can also act on membrane phospholipids (Taiz;Zeiger, 2013). According to Andrade et al (2018), esterase is a good indicator of seed deterioration, with an important catalytic function in cell detoxification, and its higher expression may be associated with greater disruption of cell membranes during drying.…”

Section: Resultsmentioning

confidence: 99%

Trolox equivalent antioxidant capacity of Coffea arabica L. seeds

et al. 2022

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The causes of the low desiccation tolerance and low longevity of coffee seeds have not yet been fully elucidated, and a full understanding of their complex physiology is of great interest. Among several alternatives, the loss of antioxidant capacity in seeds may be related to their rapid loss in quality during storage. The objective of this study was to determine the total antioxidant capacity of coffee harvested at different ripeness stages before and after the storage of seeds with different water contents and to relate antioxidant capacity to physiological quality. Seeds in the greenish-yellow or cherry stages, recently harvested or stored for nine months at 10 °C with 40, 30, 20 and 12% water content (wet basis - wb), were submitted to physiological and biochemical quality evaluations, and the Trolox equivalent antioxidant capacity (TEAC) was determined. The germination and root protrusion of coffee seeds from greenish-yellow and cherry fruits were not affected by drying, but seeds harvested at physiological maturity had greater vigor when the moisture content was lower. The quality of coffee seeds decreased during storage, and this decrease was greater in seeds stored with higher water contents. Coffee seeds in the greenish-yellow stage had a higher antioxidant capacity than those in the cherry stage when recently harvested, but there was a substantial reduction in this capacity during storage at both maturation stages. Coffee seed deterioration is related to a reduction in antioxidant capacity, and the isoenzymatic profiles of the antioxidant process are little affected by the seed maturation stage. The deterioration of coffee seeds during storage is related to a reduction in their total antioxidant capacity, regardless of their maturation stage, being more pronounced in the greenish-yellow stage.

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Section: Resultsmentioning

confidence: 99%

Trolox equivalent antioxidant capacity of Coffea arabica L. seeds

et al. 2022

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“…In tobacco seeds, those from fruits at the initial development stages have the lower expression of MDH. However, this enzyme activity increases during seed physiological maturation (Andrade et al 2018). Malato dehydrogenase acts as a catalyzer for the reaction which converts malato in oxaloacetate for the NADH production during Krebs Cycle.…”

Section: Discussionmentioning

confidence: 99%

“…Malato dehydrogenase acts as a catalyzer for the reaction which converts malato in oxaloacetate for the NADH production during Krebs Cycle. Decrease on this enzyme expression promotes the mitochondria membranes rupture, prejudicing the ATP production and oxygen absorption (Andrade et al 2018).…”

Section: Discussionmentioning

confidence: 99%

Physiological quality of Capsicum chinense 'Adjuma' seeds during development

2023

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Once “bode” pepper plants (Capsicum) have continuous development and fructification, it is not possible to determine a specific season for seed physiologic maturation and harvest. This research aimed to evaluate physiological quality of “bode” pepper (Capsicum chinense 'Adjuma’) during fruit development and enzymes expression on seed germination. Manually extracted seeds were submitted to physiological tests being evaluated germination at first count (FC), final (G), and germination speed index (GSI), additionally, enzymatic analyses were carried. The lowest values for the physiological tests were observed for initial development stages. The greatest for FC, G and IVG were observed for seeds from fruits 70 days after anthesis (DAA). Superoxide dismutase enzyme has the highest values on seeds harvested at 49 DAA while malate dehydrogenase has more expression at 70 DAA. Catalase, alcohol dehydrogenase, and esterase have the higher expression at 63 DAA. The maturation stage influences bode pepper seed physiological quality, being seeds harvested at 70 DAA those with the better results on the evaluated parameters, thus, considered physiologically mature and the indicated time for harvest.

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“…Balangan, Desa Kuwum, Kecamatan Mutu benih meningkat secara bertahan selama proses pemasakan dan umumnya menjadi lebih tinggi bila akumulasi bahan kering tercapai maksimum (Olasoji et al, 2012). Pada tanaman tembakau, penampilan buah secara fisik dipakai sebagai indikator dari kemasakan dan mutu benih (Andrade et al, 2018). Untuk sebagian besar spesies tumbuhan, titik panen yang ideal bergantung pada kematangan fisiologis benih.…”

Section: Penelitian Ini Dilaksanakan DI Subakunclassified

Penentuan Waktu Panen untuk Produksi Benih Bermutu Tanaman Kacang Panjang (Vigna sinensis L.)

Mayun

Astiningsih

Sedana

et al. 2021

AJoAS

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Determination of Harvest Time for Quality Seed Production of Long Bean Plants (Vigna sinensis L.). Seed maturity generally occurs at the same time as fruit maturity. When the fruit reaches its physiological level, it is the best time to get seeds with high quantity and best quality. Early harvest before physiological maturity many seeds have not been completely filled so that they will produce low quality seeds because many seeds are wrinkled. Meanwhile, when harvested after physiological maturity, the seeds experience weather conditions so that many seeds experience physical and physiological quality deterioration. The research aimed to get the right harvest time in the production of quality seeds of long bean plants. This study used a randomized block design with 6 treatments at harvest pods after blooming and 4 replications. The six treatments were harvest age 14, 17, 20, 23, 26, and 29 days after the flowers bloom. The results showed that the right time to harvest pods for the production of long bean seeds was 26 days after blooming, the color of the pods has changed from green to yellow, the seeds have the highest dry weight (7,56 g), the best germination capacity (100%), and maximum vigor (88,78%).

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Research Article Morphological, physiological, and biochemical indicators of quality in tobacco fruits and seeds

Cited by 4 publications

References 39 publications

Trolox equivalent antioxidant capacity of Coffea arabica L. seeds

Trolox equivalent antioxidant capacity of Coffea arabica L. seeds

Physiological quality of Capsicum chinense 'Adjuma' seeds during development

Penentuan Waktu Panen untuk Produksi Benih Bermutu Tanaman Kacang Panjang (Vigna sinensis L.)

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