scholarly journals Optimizing the size of root cutting in Melia volkensii Grke for improving clonal propagation and production of quality planting stock

2016 ◽  
Vol 15 (29) ◽  
pp. 1551-1558
Author(s):  
Hanaoka So ◽  
Ohira Mineko ◽  
Matsushita Michinari ◽  
Kariuki Jason
Keyword(s):  
Clonal Propagation ◽  
Planting Stock ◽  
Melia Volkensii ◽  
Root Cutting

scholarly journals PROPAGATION OF PECAN BY STEM AND ROOT CUTTINGS

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 691d-691
Author(s):  
M.M. Fouad ◽  
S. Abou-Taleb ◽  
B.W. Wood ◽  
I.E. Yates
Keyword(s):  
Root Length ◽  
Clonal Propagation ◽  
Stem Cuttings ◽  
Rooted Cuttings ◽  
Root Cutting

Certain key experiments on the clonal propagation of pecan by stem and root cuttings are described. Juvenile cuttings of pecan cv. `Stuart' produced more roots and a larger percentage of rooted cuttings than adult cuttings when treated with 1% solution of (IBA) in Feb. and Aug. Successful propagation from `Stuart' stem cuttings was high from July to September. This study also fails to support the hypothesis that auxins are necessary to increase the level of rooting by pecan hardwood cuttings. Pecans were propagated using root cutting techniques and successfully transplanted to containers. Root cutting sections collected in either March or August from two-year-old `Curtis' seedling, responded yielding high rooting success and survival. The data also provides evidence that IBA could enhance the production of roots of root cuttings but BA (Benzyl Adenrine) offers no benefit. Girdling the sprout shoots from root cuttings with the use of IBA doubled the percentage of shoots producing roots and increasing root length.

Influence of Planting Stock Clove Size, Nitrogen Rate, and Planting Method on Elephant Garlic Production

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 517f-518
Author(s):  
Jeanine M. Davis
Keyword(s):  
Survival Rates ◽  
Ground Level ◽  
Winter Survival ◽  
Nitrogen Rate ◽  
Planting Stock ◽  
Mild Winter ◽  
Allium Ampeloprasum ◽  
Planting Methods ◽  
Planting Method ◽  
Nitrogen Rates

To produce large elephant garlic (Allium ampeloprasum L.) bulbs in the southeastern United States, stock cloves must be planted in the fall. During extremely cold winters, however, winter survival rates can be very low. A 2-year study was undertaken to examine practices to increase winter survival rates. Two clove sizes (≤20 g or >20 g), three nitrogen rates (112, 224, and 336 kg/ha), and three planting methods (flat, mulched, and hilled) were tested in a RCB design with four replications. For all planting methods, cloves were set in a shallow trench and covered with soil to ground level. This was also the flat treatment. For the mulched treatment, 7 cm of straw was spread on top. For the hilled treatment, soil was mounded 10 to 15 cm high over the ground level. Cloves were planted in early October and harvested in mid-June. Use of large planting stock cloves increased winter survival rates during the harsh winter, but had no effect during the mild winter. Both years, winter survival was reduced with the flat treatment. Yields of marketable bulbs were 4 to 5 times higher when >20 g cloves were planted than when ≤20 g cloves were used. Nitrogen rate and planting method had no effect on yields. The >20 g cloves also produced larger bulbs than the smaller cloves. Of the three planting methods, the flat treatment produced the smallest bulbs. Bulbs were much larger following the mild winter than the harsh winter.

scholarly journals Whole genome resequencing and custom genotyping unveil clonal lineages in ‘Malbec’ grapevines (Vitis vinifera L.)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Luciano Calderón ◽  
Nuria Mauri ◽  
Claudio Muñoz ◽  
Pablo Carbonell-Bejerano ◽  
Laura Bree ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Somatic Mutations ◽  
Clonal Propagation ◽  
Variant Calling ◽  
Vitis Vinifera L ◽  
Whole Genome ◽  
Single Nucleotide Variants ◽  
Genome Resequencing ◽  
Diversity Pattern ◽  
Whole Genome Resequencing

AbstractGrapevine cultivars are clonally propagated to preserve their varietal attributes. However, genetic variations accumulate due to the occurrence of somatic mutations. This process is anthropically influenced through plant transportation, clonal propagation and selection. Malbec is a cultivar that is well-appreciated for the elaboration of red wine. It originated in Southwestern France and was introduced in Argentina during the 1850s. In order to study the clonal genetic diversity of Malbec grapevines, we generated whole-genome resequencing data for four accessions with different clonal propagation records. A stringent variant calling procedure was established to identify reliable polymorphisms among the analyzed accessions. The latter procedure retrieved 941 single nucleotide variants (SNVs). A reduced set of the detected SNVs was corroborated through Sanger sequencing, and employed to custom-design a genotyping experiment. We successfully genotyped 214 Malbec accessions using 41 SNVs, and identified 14 genotypes that clustered in two genetically divergent clonal lineages. These lineages were associated with the time span of clonal propagation of the analyzed accessions in Argentina and Europe. Our results show the usefulness of this approach for the study of the scarce intra-cultivar genetic diversity in grapevines. We also provide evidence on how human actions might have driven the accumulation of different somatic mutations, ultimately shaping the Malbec genetic diversity pattern.

Nitrogen and litter addition decreased sexual reproduction and increased clonal propagation in grasslands

Oecologia ◽  
2021 ◽  
Vol 195 (1) ◽  
pp. 131-144
Author(s):  
Zimeng Li ◽  
Jinfeng Wu ◽  
Qing Han ◽  
Kunyan Nie ◽  
Jiani Xie ◽  
...  
Keyword(s):  
Sexual Reproduction ◽  
Clonal Propagation ◽  
Litter Addition

The Influence of Desiccation, Rough Handling and Cold Storage on the Quality and Establishment of Sitka Spruce Planting Stock

1990 ◽  
Vol 63 (2) ◽  
pp. 129-141 ◽  
Author(s):  
J. D. DEANS ◽  
C. LUNDBERG ◽  
P. M. TABBUSH ◽  
M. G. R. CANNELL ◽  
L. J. SHEPPARD ◽  
...  
Keyword(s):  
Cold Storage ◽  
Sitka Spruce ◽  
Planting Stock ◽  
Rough Handling

Electrical signalling and cytokinins mediate effects of light and root cutting on ion uptake in intact plants

2009 ◽  
Vol 32 (2) ◽  
pp. 194-207 ◽  
Author(s):  
SERGEY SHABALA ◽  
JIAYIN PANG ◽  
MEIXUE ZHOU ◽  
LANA SHABALA ◽  
TRACEY A. CUIN ◽  
...  
Keyword(s):  
Ion Uptake ◽  
Intact Plants ◽  
Electrical Signalling ◽  
Root Cutting

scholarly journals Influence of Cytokinins in Combination with GA3on Shoot Multiplication and Elongation of Tea Clone Iran 100 (Camellia sinensis(L.) O. Kuntze)

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Reza Azadi Gonbad ◽  
Uma Rani Sinniah ◽  
Maheran Abdul Aziz ◽  
Rosfarizan Mohamad
Keyword(s):  
Camellia Sinensis ◽  
Woody Plants ◽  
Clonal Propagation ◽  
Shoot Multiplication ◽  
Shoot Elongation ◽  
Nodal Segments ◽  
Nodal Segment ◽  
Liquid Form ◽  
Solid Media

The use ofin vitroculture has been accepted as an efficient technique for clonal propagation of many woody plants. In the present research, we report the results of a number of experiments aimed at optimizing micropropagation protocol for tea (Camellia sinensis(L.) O. Kuntze) (clone Iran 100) using nodal segments as the explant. The effect of different combinations and concentrations of plant growth regulators (PGR) (BAP, TDZ, GA3) on shoot multiplication and elongation was assessed. The influence of exposure to IBA in liquid form prior to transfer to solid media on rooting of tea microshoots was investigated. The results of this study showed that the best treatment for nodal segment multiplication in terms of the number of shoot per explant and shoot elongation was obtained using 3 mg/L BAP in combination with 0.5 mg/L GA3. TDZ was found to be inappropriate for multiplication of tea clone Iran 100 as it resulted in hyperhydricity especially at concentrations higher than 0.05 mg/L. Healthy shoots treated with 300 mg/L IBA for 30 min followed by transfer to 1/2 strength MS medium devoid of PGR resulted in 72.3% of shoots producing roots and upon transferring them to acclimatization chamber 65% survival was obtained prior to field transfer.

Sign in / Sign up

Export Citation Format

Share Document