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Start Over Coverage 35-41

2. Effect of zinc deficiency on chlorophyll content, photosynthesis and water relations of cauliflower plants

Creator:
Sharma, P.N., Kumar, Nikhir, and Bisht, S.S.
Format:
print
Type:
model:internalpart and TEXT
Language:
Multiple languages
Description:
Cauliflower (Brassica oleracea L. var. botrytis) plants subjected to Zn defíciency showed decreased leaf water potential and transpiration rate, and increased leaf thickness, and accumulation of sugars and starch. Zn-deficient leaves also showed decreased photosynthetic rates (P^) and compensation irradiance and increased apparent quantum efficiency. Decrease in leaf chlorophyll (Chl) content due to Zn defíciency, though signifícant on fresh mass unit was insignifícant on leaf area unit. Decreased was not attributable to the effects of Zn defíciency on Chl content upto 51 d of treatment. Zn-defícient leaves showed an insignifícant decrease in photosynthetic O2 evolution at saturating irradiance and CO2 supply; signifícant decreases in P^, stomatal conductance and intercellular CO2 concentration when the leaves were supplied with CO2 at atmospheric concentration suggest that stomatal limitation contributes signifícantly towards decreased P^ in Zn-defícient leaves.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

3. Ein grenzgänger: Anton Günthers suche nach sprachlicher identität

Creator:
Sternkopf, Jochen
Format:
print
Type:
model:internalpart and TEXT
Language:
English and Czech
Description:
Analýza se soustřeďuje na jazykovou stránku rozmanitého Giintherova díla. Zabývá se jazykovými specifiky básníka, který našel své pole působnosti na rozhraní Cech a Saska. Rozbor začíná uvedením jednotlivých výrazů typických pro tento region, a ústi v proměňující se obraz "Sprache der Heimat". Konečně jsou zmíněny aspekty jazykové identity Antona Günthera, krušnohorského sběratele a zpěváka lidových písní.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

4. Gas exchange and epidermal characteristics of Miscanthus populations in Taiwan varying with habitats and nitrogen application

Creator:
Weng, J.-H. and Hsu, F.-H.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
adaxial and abaxial leaf surfaces, altitude, C4 plant, clone differences, ecotypes, leaf conductance, mesophyll conductance, photosynthesis, and stomatal frequency
Language:
Multiple languages
Description:
Seventeen clones of C4 grass Miscanthus spp. collected from different climatic regions and elevations of Taiwan were transplanted in pots. 15-16 months after collection the plants received 0, 1, and 2 g of nitrogen fertiliser (N0, N1, and N2, respectively) per pot. All the measurements were done 10-12 d after N application. The relationships between net photosynthetic rate (PN) and photon flux density (PFD) showed a saturated curve, with PFD saturation at about 1 000 µmol m-2 s-1. The ranges of PFD saturated PN (Psat) for all the tested clones with N0, N1, and N2 were 8-16, 11-18, and 12-21 µmol m-2 s-1, respectively. The clones from southern Taiwan, a tropical region, showed the highest Psat, followed by the clones from northern Taiwan, a subtropical region, while those from mountainous area showed the lowest Psat. The clones collected from southern Taiwan showed the highest frequency of stomata on the adaxial surface, and those collected from the high mountainous area showed the lowest frequency. Also the adaxial surface of leaves from the higher mountainous area had more wax deposited than the leaves from the lowland. Thus the low Psat in mountain clones is limited by both stomatal and non-stomatal factors. Further, the lower leaf conductance and different epidermal characteristics of mountain clones might prevent excessive loss of heat through transpiration and provide production against ultraviolet-B radiation. and J. H. Weng, F. H. Hsu.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public