Influence of intercellular space differences due to variety and storage upon tuber specific gravity-dry matter relationship

1971 ◽  
Vol 48 (5) ◽  
pp. 173-181 ◽  
Author(s):  
L. J. Kushman ◽  
F. L. Haynes
Keyword(s):  
Specific Gravity ◽  
Intercellular Space ◽  
Dry Matter ◽  
And Storage ◽  
Tuber Specific Gravity

scholarly journals Evaluation of Potato (Solanum tuberosum L.) Varieties for Yield and Some Agronomic Traits

2020 ◽  
Vol 5 (1) ◽  
pp. 63-74
Author(s):  
Lemma Tessema ◽  
Wassu Mohammed ◽  
Tesfaye Abebe
Keyword(s):  
Specific Gravity ◽  
Dry Matter ◽  
Tuber Yield ◽  
Block Design ◽  
Matter Content ◽  
Tuber Quality ◽  
Dry Matter Content ◽  
Marketable Tuber ◽  
Potato Varieties ◽  
Central Highlands

AbstractA field experiment was conducted in the central highlands of Ethiopia to evaluate the performance of potato varieties for tuber yield and to identify a superior variety in tuber yield and yield components. The experiment was laid out in a randomized complete block design with three replications at two locations in the central highlands of Ethiopia during the 2017 main cropping season. The results of analysis of variance (ANOVA) showed the presence of highly significant (P<0.01) differences among varieties over all traits studied. The mean squares for location were also significant in indicating the influence of environments on the traits of the studied varieties. However, the interaction between variety and environment had no significant effect on the performances of the potato varieties to attain 50% flowering, specific gravity and dry matter content indicating a similar performance of these traits across all locations. The variety Belete produced the maximum total tuber yield of 32.8 t ha -1 and marketable tuber yield of 29.1 t ha-1. Conversely, farmers` variety Nech Abeba produced the minimum total tuber yield of 13.8 t ha-1 and marketable tuber yield of 8.4 t ha-1. For most tuber quality traits, viz., tuber specific gravity, dry matter content, starch percentage and total starch yield, varieties Belete and Menagesha were the maximum and minimum producers, respectively. Thus, it could be concluded that varietal and environmental variations as well as their interaction had considerable influence on tuber yield and the potato’s attributes.

Growth and Development of Short and Long Season Sweet Potatoes in Sub-Tropical Australia

1976 ◽  
Vol 12 (4) ◽  
pp. 385-394 ◽  
Author(s):  
D. O. Huett ◽  
G. H. O'Neill
Keyword(s):  
Growth And Development ◽  
Dry Matter ◽  
Storage Root ◽  
Growth Data ◽  
Sweet Potatoes ◽  
Matter Production ◽  
Whole Plant ◽  
Tropical Australia ◽  
Temperate Environment ◽  
And Storage

SUMMARYThe growth and development of a short-season sweet potato (Nemagold) and a long-season cultivar (White Maltese) were compared quantitatively in sub-tropical Australia and also with growth data for Nemagold in a temperate environment. Total and storage root dry matter production (DMP) followed autocatalytic equations, with similar whole plant DMP from planting to week 25 for both cultivars but plateauing (at 90% of asymptotic weight) at week 23 for Nemagold (448 g) with favourable temperatures and at week 38 for White Maltese (813 g) when temperatures were unfavourable. Storage root DMP of Nemagold plateaued at week 23 (246 g) and at week 36 (219 g) for White Maltese. Data are given on other attributes and on phasic development.

scholarly journals Post-harvest content of free titratable acids in the grain of proso millet varieties (Panicum milliaceum L.), and changes during grain processing and storage

2010 ◽  
Vol 46 (Special Issue) ◽  
pp. S90-S95 ◽  
Author(s):  
V. Dvořáček ◽  
D. Janovská ◽  
L. Papoušková ◽  
E. Bicanová
Keyword(s):  
Dry Matter ◽  
Slight Modification ◽  
Storage Conditions ◽  
Panicum Miliaceum ◽  
Proso Millet ◽  
Grain Processing ◽  
Sensory Changes ◽  
Processing And Storage ◽  
And Storage

A triennial evaluation of the content of titratable acids (TA) in grain was carried out on 12 varieties of proso millet (<I>Panicum miliaceum </I>L.). The model variety, Mironovskoe 94, harvested in 2004, was used for the monitoring of sensory changes in TA content, in relationship to different storage conditions and the application of different grain processing methods. The Czech state norm (CSN 56 0512-9 1995) Determination of Titratable Acids, with a slight modification, was used as the standard method. The TA contents in dry matter varied between 39 and 78 mmol/kg of grain dry matter, and significant differences between varieties and experimental years were found. The method of proso millet processing had a key role in the final sensitivity to rancidity. The storage conditions had a much lower influence on TA content than the processing technology. The clearly detected sensory changes found in scoured grains corresponded with TA contents within the range of 90 to106 mmol/kg. The monitoring of the TA content can be considered as a suitable tool for the prediction of rancidity processes in millet grains.

The effects of maxgrass treatment of bale silage on the performance of beef cattle

1992 ◽  
Vol 1992 ◽  
pp. 148-148
Author(s):  
J R Weddell
Keyword(s):  
Beef Cattle ◽  
Dry Matter ◽  
Octanoic Acid ◽  
Water Soluble ◽  
Soluble Carbohydrate ◽  
Animal Performance ◽  
Storage Losses ◽  
The Uk ◽  
Water Soluble Carbohydrate ◽  
And Storage

Studies with beef cattle (Kennedy and Carson, 1991) and dairy cattle (Chamberlain et al, 1990) have shown responses in dry matter intake of silage and animal performance through applying Maxgrass silage additive to unwilted herbage ensiled in clamps. Maxgrass (BP Chemicals Ltd) contains (weight/volume) 68% ammonium hexamethanoate, 11% ammonium hexapropanoate and 2% octanoic acid.Research at Aberdeen has shown the benefits of using both inoculant (Weddell, 1990a) and formic acid based (Weddell, 1990b) additives on big bale silage which now constitutes around 15% of the total silage dry matter ensiled in the UK. The present study compared the effects on silage composition, animal performance and storage losses of Maxgrass treated with untreated big bale silage.Second cut perennial ryegrass herbage was wilted to a mean DM content of 230 g/kg then baled by fixed chamber baler. Mean water soluble carbohydrate was 100 g/kg DM. Alternate groups of six bales were left untreated or treated with Maxgrass silage additive at 7.4 1/tonne wilted grass.

Studies on the supplementary feeding of sheep consuming mulga (Acacia aneura). 3. The provision of phosphorus, molasses and urea supplements under pen conditions

1976 ◽  
Vol 16 (83) ◽  
pp. 818 ◽  
Author(s):  
NP McMeniman
Keyword(s):  
Specific Gravity ◽  
Dry Matter ◽  
Unit Volume ◽  
Phosphorus Content ◽  
Nitrogen Retention ◽  
Supplementary Feeding ◽  
Dry Matter Intake ◽  
Phosphorus Retention ◽  
Acacia Aneura

Mulga (Acacia aneura) was fed to five groups of four weaner wethers. One group was given a supplement of phosphorus (P) as NaH2PO4, another energy as molasses (E), a third both phosphorus and molasses (P + E) and the fourth urea, phosphorus and molasses (P + E + N) ; the fifth group acted as an unsupplemented control (C). Total dry matter intake during the 42 weeks of the experiment was progressively increased by the addition of P, E, P + E and P + E + N to the diet. Liveweight gain was highest inthe P + E + Ngroup followed by the P + Egroupandthen the E group. Groups P and C lost weight during the experiment. Balance studies showed that P + E and P + E + N supplementation enhanced nitrogen retention, and phosphorus supplementation increased phosphorus retention. The digestibility of mulga was increased by phosphorus supplementation. Specific gravity and phosphorus content per unit volume of bone were increased by supplementation with P + E + N and P + E, and phosphorus content was marginally increased by P supplementation.

Wheat Grain Growth: Anthesis to Maturity

1979 ◽  
Vol 6 (2) ◽  
pp. 187 ◽  
Author(s):  
JHM Thornley
Keyword(s):  
Grain Growth ◽  
Dry Matter ◽  
Wheat Plant ◽  
Dry Weight ◽  
Wheat Grain ◽  
Storage Material ◽  
Matter Production ◽  
Substrate Level ◽  
Source Sink ◽  
And Storage

A model of the wheat plant is described which consists of two components, the grain and storage material. Photosynthesis supplies further substrate to the store, from which material is used for grain growth at a rate that depends on the substrate level. The model allows predictions of grain dry weight at maturity and its dependence on total post-anthesis dry matter production, and leads to an interpretation of the source-sink interactions in this situation.

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