The effect of nitrogen fertilization upon potato chipping quality—chip color I.

1956 ◽  
Vol 33 (6) ◽  
pp. 187-189 ◽  
Author(s):  
Tom Eastwood ◽  
James Watts
Keyword(s):  
Nitrogen Fertilization ◽  
Chip Color ◽  
Chipping Quality

Genetic components of potato chip quality evaluated in three environments and under various storage regimes

1992 ◽  
Vol 72 (2) ◽  
pp. 535-543 ◽  
Author(s):  
D. R. Lynch ◽  
G. C. C. Tai ◽  
R. H. Coffin
Keyword(s):  
Specific Gravity ◽  
Combining Ability ◽  
Principal Component ◽  
Chip Color ◽  
Narrow Sense Heritability ◽  
Genetic Components ◽  
New Information ◽  
Total Variability ◽  
Highly Correlated ◽  
Chipping Quality

A diallel series of crosses was made between parents with good processing quality and nonprocessing but well-adapted varieties and breeding clones to study the inheritance of chipping quality and tuber yield in potatoes. The progeny of the crosses were assessed in three widely differing growing environments and chipped from a range of storage environments. Principal component analysis for chip color indicated that the first (PCA1) and second (PCA2) principal components accounted for 84.4 and 5.0% of the total variability, respectively. PCA1 scores were highly correlated (P < 0.01) with the mean chip color scores of the 20 crosses measured over the 11 environments, whereas PCA2 scores were highly correlated (P < 0.01) with the standard deviations of the chip scores over storage environments. These results provide new information that supports the recently proposed concept of two genetically independent systems determining chip color, i.e., "overall chipping quality" and "chipping stability". Highly significant (P < 0.01) general combining-ability and nonsignificant specific combining-ability effects suggest additive genetic factors and high narrow-sense heritability for specific gravity. Combining-ability effects for yield traits were generally nonsignificant, which probably reflects the selection of parents with proven breeding value.Key words: Solanum tuberosum, stability, yield, specific gravity

RELATIONSHIP OF CHIPPING QUALITY OF POTATOES TO MATURITY AND STORAGE TEMPERATURE

1969 ◽  
Vol 49 (4) ◽  
pp. 453-458 ◽  
Author(s):  
Charles Walkof ◽  
B. B. Chubey
Keyword(s):  
Irish Cobbler ◽  
Storage Temperature ◽  
Chip Color ◽  
Chip Quality ◽  
C Storage ◽  
On Chip ◽  
Relationship Of ◽  
And Storage ◽  
Chipping Quality

Acceptable chip quality based on chip color was obtained in five potato cultivars freshly harvested in August, September and October. Placing the tubers in 5 °C storage severely impaired chip quality. Reconditioning the tubers at 21 °C for 2 weeks improved chip quality in the cultivar Kennebec harvested in October and in two experimental cultivars, F5208 and F5889 harvested in September and October. Tubers of the cultivars Warba and Irish Cobbler from all harvests failed to become reconditioned satisfactorily. Preconditioning tubers at 21 °C before storing them at 5 °C and then reconditioning at 21 °C improved chip color in all cultivars. The color improved to an acceptable level in tubers of Kennebec harvested in October and of the experimental cultivars harvested in September and October. In these also, preconditioning produced good chip color when tubers were chipped directly from 5 °C storage. Tubers from all harvests of the experimental cultivar F5889, including those harvested when immature in August, chipped well from storage at 5 °C after 5 weeks of preconditioning at 21 °C.

The effect of potash fertilization upon potato chipping quality III. — chip color

1956 ◽  
Vol 33 (8) ◽  
pp. 255-257 ◽  
Author(s):  
Tom Eastwood ◽  
James Watts
Keyword(s):  
Chip Color ◽  
Chipping Quality

The influence of nitrogen fertilization on protein yield and nutrient uptake in different triticale genotypes

2007 ◽  
Vol 35 (2) ◽  
pp. 253-256
Author(s):  
Milan Biberdžić ◽  
Ivica Đalović ◽  
Aleksandar Paunović ◽  
Ilija Komljenović
Keyword(s):  
Nutrient Uptake ◽  
Nitrogen Fertilization ◽  
Protein Yield

Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest Term

2009 ◽  
Vol 70 (1) ◽  
pp. 135-144 ◽  
Author(s):  
Marek Gajewski ◽  
Zenon Węglarz ◽  
Anna Sereda ◽  
Marta Bajer ◽  
Agnieszka Kuczkowska ◽  
...  
Keyword(s):  
Nitrogen Fertilization ◽  
Soluble Solids ◽  
Soluble Solids Content ◽  
Carrot Juice ◽  
Harvest Time ◽  
Experimental Station ◽  
Colour Parameters ◽  
Solids Content ◽  
Nitrates Content

Quality of Carrots Grown for Processing as Affected by Nitrogen Fertilization and Harvest TermIn 2007-2008 the effect of nitrogen fertilization and harvest term on quality of two carrot cultivars was investigated. The field experiment was carried out in Żelazna Experimental Station of Warsaw University of Life Sciences. Karotan F1and Trafford F1cultivars, commonly grown for juice industry, were the objects of the experiment. Carrot seeds were sown at the beginning of May. Nitrogen fertilization was applied in five rates, ranged from 0 to 120 kg·ha-1and in two terms — before sowing and in the middle of growing season. Roots were harvested in three terms: mid-September, mid-October and the first decade of November. After harvest there were determined: nitrates (NO3) content in carrot roots and juice, soluble solids, colour parameters of juice in CIE L*a*b*system. The dose and the term of nitrogen fertilization influenced nitrates content in carrots, and the highest NO3concentration was found in carrots fertilized with 120 kg·ha-1of N before sowing. Karotan showed higher nitrates accumulation than Trafford. The content of nitrates in the roots was markedly higher than in carrot juice. Nitrates content in carrots decreased with delaying of harvest time, in opposite to soluble solids content. Soluble solids content and colour parameters of carrot juice were not affected by nitrogen fertilization, but the lowest L*, a*and b*values were observed at the last term of harvest.

Sign in / Sign up

Export Citation Format

Share Document