Pepper Photosynthesis, Stomatal Conductance, Transpiration, and Water Use Efficiency Differ with Variety, Indigenous Habitat, and Species of Origin

Erwin, John E.; Hussein, T.

doi:10.21273/hortsci13871-19

Cited by 7 publications

(7 citation statements)

References 30 publications

(44 reference statements)

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“…Some genotypes may yield enormous, heavy fruits, whereas others may produce smaller, lighter fruits. This variation is in conformity with the value of Usman et al (2014), Bundela et al (2017), Ridzuan et al (2019), and Erwin et al (2019). Among all the chili genotypes, Putra Chili 1 gave the highest photosynthesis rate (15.04 µmol CO2 m -2 s -1 ) while AVVPO702 gave the lowest rate (9.79 µmol CO2 m -2 s -1 ) which were followed by genotypes DP-57 (9.79 µmol CO2 m -2 s -1 ), AP-18 (9.79 µmol CO2 m -2 s -1 ), Control 1 (9.81 µmol CO2 m -2 s -1 ) and Control 2 (10.16 µmol CO2 m -2 s -1 ), respectively.…”

Section: Resultssupporting

confidence: 90%

“…Third highest fruit yield was recorded by cluster VI (648.95 g). Similar cluster distance analysis was found by many investigators and chili genotypes were grouped based on the morphological, physiological and yield traits and also genetic divergences were reported on chili genotypes and research suggest that genotypes with the best performance may be adopted in future breeding program (Usman et al, 2014;Meena et al, 2016;Erwin et al, 2019;Ridzuan et al, 2019).…”

Section: Cluster Analysis Of Selected Chili Genotypessupporting

confidence: 78%

See 1 more Smart Citation

Genetic analysis of anthracnose resistant and heat tolerant chili inbreed lines based on morpho-physiological characteristics

Chowdhury

Rafii

Ismail

et al. 2023

Chil. j. agric. res.

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A better understanding of the various desirable characteristics present in chili (Capsicum annuum L.) genotypes has aided in developing more effective selection methods for crop improvement. Identifying genetically superior parents is critical in selecting the best parents and inbred lines for breeding purposes. This study was conducted over two planting seasons in glasshouse using morpho-physiological parameters to evaluate the heritability variation of selected chili genotypes based on their genetic diversity for future breeding program. Significant variances were observed in all the studied parameters across the chili pepper accessions with an inclusive range of diversity. The highest genotypic coefficient of variation (≥ 20%) was observed for all physiological and yield characteristics. While the highest phenotypic coefficient of variation (≥ 20%) was seen for all examined characteristics. All studied parameter had high broad sense heritability (˃ 55%) except total number of branches per plant (47.9%) while the moderate to high genetic advance were observer for all studied traits demonstrating that the extents of heritability and variability are due to their genetic makeup and environment had little influence on these characters. The evaluated genotypes were grouped into seven clusters based on the cluster analysis and Group I recorded highest yield with eight genotypes while Groups III, IV, V, VI, and VII recorded one each. Plant height and total branch number showed a highly significant positive correlation with the number of fruits per plant and yield per plant. Similarly, the number of fruits per plant had a highly significant positive correlation with fruit yield per plant. The study revealed that genetic variability might be usefully exploited through selection for further breeding purposes to increase yield and production.

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Section: Resultssupporting

confidence: 90%

Section: Cluster Analysis Of Selected Chili Genotypessupporting

confidence: 78%

Genetic analysis of anthracnose resistant and heat tolerant chili inbreed lines based on morpho-physiological characteristics

Chowdhury

Rafii

Ismail

et al. 2023

Chil. j. agric. res.

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“…They reported that increasing salinity level and water deficit caused reductions in WP, but they did not report varietal differences. Varietal differences in WPs were reported for different water regimes such as for wheat van den Boogard et al (1997); for peanut Bhatnagar-Mathur et al (2007), Ratnakumar et al (2009) and Devi et al (2009); for pepper Erwin et al (2019). Erwin et al (2019) stated that differences in water use properties among pepper varieties are higher than previously reported.…”

Section: Water Use and Productivitymentioning

confidence: 92%

Modelling Yield Response and Water Use to Salinity and Water Relations of Six Pepper Varieties

Semiz

ŞENTÜRK

YILDIRIM

et al. 2023

J Agr Sci-Tarim Bili

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Better understanding of crop yield response under salinity and water deficit conditions is essential to meet food need under the circumstance of population growth and climate extremities. It has been well known that plant species response differently under stress conditions. Recent studies show that these different responses occur not only among species but also in different varieties within the same species. The aims of the study are to examine and to compare yield, yield response factors (ky), salinity thresholds, biomasses, and water productivity responses of six varieties of pepper plant (Sürmeli-Hot, Yalova, BT016-Hot, BT 016, BT Ünsal, BT Demok) under salinity conditions. In another experiment under the same conditions (location, time, growth media etc.), water deficit was applied to two of these six varieties (BT Ünsal and BT Demok) separately, and their responses to salinity and water deficit conditions were compared. The experiment was carried out in containers. The amount of irrigation water was determined manually by weighing each container. Water deficit treatments were consisted of meeting 120, 100, 70 and 50% of soil water depleted from field capacity. Water salinity levels were 0.25 (control), 2, 4 and 6 dS m-1. There was no difference in yield under non-stress and excessive stress conditions, but the yield difference was as high as 38.9% under moderate stress conditions. Varietal differences were also observed for water productivity. Salinity threshold values vary between 0.89 and 1.83 dS m-1. Yield response factor (ky) were high for all varieties under salinity. Comparing the ky values obtained under water deficit and salinity experiments, sensitivity to salinity induced water stress was found higher than that of applied water deficit itself. Using salinity (Model 1) and water deficit (Model 2) data set of two varieties, two models were created plotting relative yield and water potentials (osmotic potential + matric potential) and compered their predications statistically. Statistically better predictions were obtained from Model 2.

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“…A növények termőképességét alapvetően az elsődleges anyagcsere folyamatok és ezen belül is döntően a fotoszintézis teljesítménye határozza meg [1,3,6,8]. A világon a legnagyobb, míg Magyarországon a második legnagyobb felületen hajtatott zöldségfaj a paradicsom.…”

Section: Bevezetésunclassified

A fotoszintetikus aktivitás őszi csökkenése három paradicsom és egy paprika hibrid leveleiben

Váradi,

Tóthné Taskovics,

Kovács

et al. 2023

Gradus

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Két koktél paradicsom fajta és egy nagy bogyójú fajta esetében folytattunk fotoszintézis vizsgálatokat hordozható infravörös gázanalizátor és impulzus amplitúdó modulált (PAM) klorofill-a fluorométer alkalmazásával. A szeptember végén és október elején, két hét különbséggel végzett mérések jól mutatják a rövidülő nappalok és csökkenő napi megvilágítás maximumok hatását, mely egyfajta fiziológiai levél-öregedésben, nevezetesen a fotoszintetikus nettó asszimilációs teljesítmény és a fotoszintetikus elektrontranszport rendszer hatékonyságának csökkenésében nyilvánul meg. Jelentős különbség volt megfigyelhető a fotoszintetikus aktivitásban és a sztóma regulációban, a lényegesen nagyobb hozamú nagy bogyójú fajta javára, mely hasonlóan alakult egy paprika fajtáéhoz.

show abstract

Pepper Photosynthesis, Stomatal Conductance, Transpiration, and Water Use Efficiency Differ with Variety, Indigenous Habitat, and Species of Origin

Cited by 7 publications

References 30 publications

Genetic analysis of anthracnose resistant and heat tolerant chili inbreed lines based on morpho-physiological characteristics

Genetic analysis of anthracnose resistant and heat tolerant chili inbreed lines based on morpho-physiological characteristics

Modelling Yield Response and Water Use to Salinity and Water Relations of Six Pepper Varieties

A fotoszintetikus aktivitás őszi csökkenése három paradicsom és egy paprika hibrid leveleiben

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