scholarly journals Plant growth characteristics under all direction illumination. I. Effects of light intensity, CO2 concentration and air temperature on growth rate of lettuce.

1984 ◽  
Vol 22 (4) ◽  
pp. 71-77 ◽  
Author(s):  
Akira IKEDA ◽  
Kenji ESAKI ◽  
Shigeki NAKAYAMA
Keyword(s):  
Growth Rate ◽  
Light Intensity ◽  
Plant Growth ◽  
Air Temperature ◽  
Co2 Concentration ◽  
Growth Characteristics ◽  
Plant Growth Characteristics

scholarly journals The growth of three varieties of black pepper (Piper nigrum) under different light intensities related to indigenous hormones role

2020 ◽  
Vol 21 (5) ◽  
Author(s):  
Issukindarsyah Issukindarsyah ◽  
Endang Sulistyaningsih ◽  
Didik Indradewa ◽  
Eka Tarwaca Susila Putra
Keyword(s):  
Growth Rate ◽  
Light Intensity ◽  
Plant Growth ◽  
Leaf Area ◽  
Surface Area ◽  
Dry Weight ◽  
Root Surface ◽  
Black Pepper ◽  
Piper Nigrum ◽  
Root Surface Area

Abstract. Issukindarsyah, Sulistyaningsih E, Indradewa D, Putra ETS. 2020. The growth of three varieties of black pepper (Piper nigrum) under different light intensities related to indigenous hormones role. Biodiversitas 21: 1778-1785. Low light intensity causes the alteration of plant biochemical and morphological as the mechanism of adaptation. The experiment used split-plot design with three replications. The main plots were three light intensity levels, i.e. 100%, 75%, and 50% radiation; while subplots were three varieties namely Nyelungkup, Petaling 1 and Petaling 2. This research was conducted to figure out the effect of shadings on hormones and the growth of three varieties of black pepper (Piper nigrum L.). The results showed that in initial vegetative growth, varieties of Nyelungkup and Petaling 1 had higher growth of both ortotroph and plagiotroph branches, leaf number, leaf area, length of root, root surface area, plant dry weight, nett assimilation rate, and plant growth rate than the variety of Petaling 2. The light intensity of 50% and 75% increased the auxin and gibberellin contents of the leaf but they did not affect the zeatin. The maximum gibberellin and auxin contents of leaf were recorded at 75% light intensity. The 50% and 75% light intensity raised the length, diameter, and internode of ortotroph branch; number, length, and internode of plagiotroph branch; leaf number; leaf area; leaf area ratio; length of root; root surface area; plant growth rate and plant dry weight related to indigenous hormones role.

scholarly journals Growth Characteristics and Response to Nitrogen Fertilizer of Some Morphotypes of Jute Marlow (Corchorus olitorius Linn.)

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 612f-612
Author(s):  
M.J. Makinde ◽  
S.A. Ayanlaja
Keyword(s):  
Genetic Diversity ◽  
Plant Growth ◽  
Root Growth ◽  
Nitrogen Fertilizer ◽  
Growth Characteristics ◽  
Corchorus Olitorius ◽  
Seed Rate ◽  
Fertilizer Rates ◽  
Plant Growth Characteristics

Plant growth characteristics were observed for 12 morphotypes of Corchorus olitorius planted in the field. Two commonly used varieties in Nigeria were subjected to increasing nitrogen fertilizer rates. Extensive variations in measured leaf, stem, and root growth confirmed genetic diversity among morphotypes. Thus, fresh shoot harvest l00 kg N/ha at 3 kg/ha seed rate for the lanceolate was 17.44 t·ha–1, the serrate-type at the same seed rate required N at 200 kg·ha–1 to produce 18.19-ha harvest.

scholarly journals Possibility of Increasing the Growth and Photosynthetic Properties of Precocious Walnut by Grafting

2020 ◽  
Vol 12 (12) ◽  
pp. 5178
Author(s):  
Yongchao Bai ◽  
Junpei Zhang ◽  
Yue Wu ◽  
Ruimin Huang ◽  
Yingying Chang ◽  
...  
Keyword(s):  
Plant Growth ◽  
Transpiration Rate ◽  
Survival Rates ◽  
Net Photosynthesis ◽  
Growth Characteristics ◽  
Photosynthesis Rate ◽  
Growth Potential ◽  
Net Photosynthesis Rate ◽  
Photosynthetic Properties ◽  
Plant Growth Characteristics

Plant growth characteristics after grafting are mainly dependent on photosynthesis performance, which may be influenced by grafting combinations with different rootstocks and scions. In this study, we used one-year-old walnut grafts to investigate the grafting compatibility between precocious (‘Liaoning 1’, L) and hybrid (‘Zhong Ning Sheng’, Z) walnut, as well as rootstock and scion impact on the growth and photosynthetic properties of walnut trees. The results showed that grafting compatibility between the two varieties is high, with survival rates upward of 86%. Overwintering survival of grafted seedlings was as high as 100%, which indicated that the allopolyploid had good resistance to low-temperature stress. The homograft of the hybrid walnut had the highest net photosynthesis rate (18.77 μmol·m−2s−1, Z/Z) and growth characteristics, which could be due to its higher transpiration rate and stomatal conductance, whereas the homograft of precocious walnut presented the lowest net photosynthesis rate (15.08 μmol·m−2s−1, L/L) and growth characteristics. Significant improvements in the net photosynthesis rate (15.97 and 15.24 μmol·m−2s−1 for L/Z and Z/L, respectively) and growth characteristics of precocious walnut were noticed during grafting of the hybrid walnut, which could have been contributed by their transpiration rate. The results of this study serve as a guide for the selection and breeding of good rootstock to improve plant growth characteristics and photosynthetic efficiency. We conclude that good rootstock selection improves plant growth potential and could play an important role in sustainable production.

Genetic control of some plant growth characteristics of bread wheat (Triticum aestivum L.) under aluminum stress

2019 ◽  
Vol 42 (3) ◽  
pp. 245-261 ◽  
Author(s):  
Sara Farokhzadeh ◽  
Barat Ali Fakheri ◽  
Nafiseh Mahdi Nezhad ◽  
Sirous Tahmasebi ◽  
Abbas Mirsoleimani ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Plant Growth ◽  
Genetic Control ◽  
Bread Wheat ◽  
Triticum Aestivum L ◽  
Growth Characteristics ◽  
Aluminum Stress ◽  
Plant Growth Characteristics
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