scholarly journals Effects of Excision of Mother Tuber on Flowering and Growth of Daughter Tubers in Sandersonia (Sandersonia aurantiaca Hook.)

2007 ◽  
Vol 6 (3) ◽  
pp. 355-359
Author(s):  
Yukio Ijiro ◽  
Katuhiro Mochiji
Keyword(s):  
1926 ◽  
Vol 16 (2) ◽  
pp. 318-324 ◽  
Author(s):  
W. McLean

1. Tubers obtained from secondary leaf-roll plants have a lower dry matter content than tubers from healthy plants. The percentage of nitrogen in the dry matter is appreciably higher in the former than in the latter. The difference in dry matter content is sufficiently large in many varieties to characterise leaf-roll tubers. Seventeen varieties were examined.2. The rate at which the nutrient materials are removed by the young plants from leaf-roll mother tubers is much slower than in the case of plants from healthy mother tubers. This may be a cause of the stunting characteristic of leaf-roll plants.3. When there is any doubt as to the diagnosis of secondary leaf-roll by the usual symptoms, a determination of the dry matter in the mother tuber two to three months after planting, would serve as a further diagnostic character.


1969 ◽  
Vol 17 (4) ◽  
pp. 300-308
Author(s):  
K.B.A. Bodlaender ◽  
J. Marinus

Sprouts separated from mother tubers showed under certain conditions (e.g. in the late variety Alpha under long-day) good foliage growth comparable with that of plants with a mother tuber; under other conditions (e.g. in the early variety Eersteling under short-day) foliage growth produced by such sprouts was relatively weak. Root development of the sprouts determined to a large degree the foliage growth and tuber yield. Experiments with Alpha showed that no direct or indirect influence of a mother tuber or inducing conditions (short-day) are necessary for tuberization, indicating that tuberization is a normal phase in the development of potato plants. In these experiments. plants from sprouts, cuttings of the 1st generation taken from these sproutlings and cuttings of the 2nd generation taken from the cuttings of the 1st generation, produced tubers under non-inducing conditions (long-day).-A.G.G.H. (Abstract retrieved from CAB Abstracts by CABI’s permission)


2014 ◽  
Vol 33 (3) ◽  
pp. 196
Author(s):  
Surya Diantina ◽  
Sri Hutami

Ubi kelapa and Gembili are potential sources of fungsional food, because of their high nutrition content. But their production and utilization in Indonesia remains lack behind, due to their low economic value, requiring long cultivation period and high number of tuber-seeds. Experiment was conducted to identify an efficient seed propagation method using miniset cutting. The experiment was carried out at Cikeumeuh ExperimentalStation, Bogor from December 2011 to January 2013. Tuber-seeds of ubi kelapa was divided into miniset cutting of two, six and eight cuttings. For gembili, tubers were cut into two, three and four miniset cuttings. The whole tuber was served as control. Cutting were germinated in polybag, after 30 days the plants were transferred to the field. Each treatment was replicated six times, with one mother tuber as an experimental unit. Plant derived from tuber without cutting produced 463 grams of ubi kelapa seed, while tuber cut into 8 miniset cutting produced 2,986 grams, where the number of tuber seeds were 3 times more than that without cutting. Gembili cut into 4 miniset cutting produced 315 grams of tuber seed with the number of tuber seed 6 times more than that without cutting. Using the miniset cutting could speed up the rate of propagation of both gembili and ubi kelapa seeds.


HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 590g-591
Author(s):  
Doug Waterer ◽  
Jazeem Wahab

Single nodal cuttings were used to study the degree of tuberizing stimulus found in Norland and Russet Burbank seed tubers produced at latitudes ranging from 40 to 52°N. Seed tubers were planted in the greenhouse under an inductive 8 h or a non-inductive 18 h photoperiod. Single leaf cuttings taken at several intervals after planting were grown under a 12 h photoperiod and the tuberization characteristics of the cuttings were rated 21 days later. Cuttings derived from seed grown at low latitudes produced more tubers under both photoperiods than cuttings from northern seed. The tuberizing stimulus increased with age of the cutting and/or association with the mother tuber. It appears that previously observed differences in yield potential of seed tubers from varying latitudes may be related to differences in an endogenous tuberizing stimulus derived from the mother tuber.


1929 ◽  
Vol 87 (1) ◽  
pp. 157-194 ◽  
Author(s):  
F. E. Denny
Keyword(s):  

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