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Start Over Coverage 477-479

1. Differential responses of iron, magnesium, and zinc deficiency on pigment composition, nutrient content, and photosynthetic activity in tropical fruit crops

Creator:
Balakrishnan, K., Rajendran, C., and Kulandaivelu, G.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Achras, chlorophyll fluorescence, Citrus, Eugenia, Jamun, Mangifera, mango, nutrient deficiency, sapota, and sweet orange
Language:
Multiple languages
Description:
Fe, Mn, and Zn affected the chlorophyll (Chl) content whereas Fe deficiency caused larger reduction of total chlorophyll content than Mg and Zn deficiencies. Mg deficient mango had a higher Chl a/b ratio than the respective healthy plants. The foliar contents of Fe, Zn, and Mg in the deficient leaves were lower than the critical level. Nutrient deficiency significantly affected the Fv/Fm ratios as observed from the Chl fluorescence induction curves. Fe deficiency resulted in larger reduction of variable fluorescence than Mg and Zn deficiency. and K, Balakrishnan, C. Rajendran, G. Kulandaivelu.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

2. Leaf area estimation in a sugar beet cultivar by linear models

Creator:
Tsialtas, J. T. and Maslaris, N.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
leaf area, leaf length, leaf width, and non destructive methods
Language:
Multiple languages
Description:
An indirect method of leaf area measurement for Rizor sugar beet cultivar was tested. Leaves were sampled during two growing seasons in a Randomised Complete Block Design experiment. For 2002 samplings, leaf area [cm2] was linearly correlated with maximum leaf width [cm] using all leaf samples (r2 = 0.83, p < 0.001) or using the means of the 8 sampling occasions (r2 = 0.97, p < 0.001). Correlations between leaf area and leaf mid vein length [cm] were weaker (r2 = 0.75, p < 0.001 and r2 = 0.93, p < 0. 001, respectively). For 2003 samplings, the area estimated by the equations was highly correlated to the measured leaf area. and J. T. Tsialtas, N. Maslaris.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

3. Responses of Acacia mangium seedlings to different irradiances

Creator:
Yu, Hua and Ong, Bee-Lian
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
gas exchange, growth, photosynthesis, and sun/shade
Language:
Multiple languages
Description:
The photosynthetic and growth responses of A. mangium to different photosynthetic photon flux density (PPFD) during early seedling establishment (36 d after sowing) were investigated. Shade-grown A. mangium seedlings exhibited lower chlorophyll (Chl) a/b ratio, higher Chl and carotenoid (Car) contents, and higher total Chl/Car ratio than sun-grown seedlings. Sun-grown seedlings showed significantly higher photosynthetic capacity and total plant dry mass. High PPFD was crucial for the successful early establishment and robust growth of A. mangium seedlings. and Hua Yu, Bee-Lian Ong.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public