Fertilization rates using intra-cytoplasmic sperm injection are greater than subzonal insemination but are dependent on prior treatment of sperm

1996 ◽  
Vol 53 (1) ◽  
pp. 101
Author(s):  
J Catt
1958 ◽  
Vol 17 (3) ◽  
pp. 598-603 ◽  
Author(s):  
Frederick W. Stratman ◽  
H. L. Self ◽  
Vearl R. Smith

1967 ◽  
Vol 59 (5) ◽  
pp. 463-467 ◽  
Author(s):  
D. L. Kittock ◽  
J. H. Williams ◽  
D. G. Hanway

1973 ◽  
Vol 37 (2) ◽  
pp. 179 ◽  
Author(s):  
John C. Barron ◽  
William F. Harwell

Agronomy ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 109
Author(s):  
Theocharis Chatzistathis ◽  
Evgenia Papaioannou ◽  
Anastasia Giannakoula ◽  
Ioannis E. Papadakis

One of the most challenging topics for the sustainable agriculture is how to decrease high fertilization rates. A pot experiment, exploring the effects of zeolite (ZEO) and/or vermiculite (VER) as soil amendments, comparing to the soil application of a controlled release fertilizer (CRF), was realized in chestnut plants. Various parameters related to soil fertility, and plant growth, nutrition, and physiology were investigated to gain knowledge towards more sustainable management. After ZEO application and in comparison to CRF, an impressive boost in soil K was achieved. Moreover, soil P and Zn levels were higher in the VER-treated soil, compared to CRF. Leaf K and Ca concentrations were significantly higher in ZEO, compared to the VER treatment; the highest foliar N and Zn concentrations were measured in CRF and VER, respectively. However, significantly lower foliar Mn and Cu were found in VER. The highest root biomass produced in the ZEO treated plants. For most nutrients, their total uptake per plant was higher in CRF and ZEO. Finally, photosynthetic rates were higher in VER (mainly due to non-stomatal factors) and CRF (mainly due to stomatal factors). Our data open a discussion towards the application of ZEO and/or VER as soil amendments in chestnut nurseries and orchards, aiming at partially decreasing fertilization rates and boosting sustainable nutrient management.


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