Kniha Vegetable Breeding Asif Saeed

Vegetable Breeding

The Potential of Breeding Tomato Hybrids for Salinity Tolerance

Autor: Asif Saeed
Jazyk: Angličtina
Väzba: Brožovaná
Vydavateľ: VDM Verlag
Dostupnosť: U vydavateľa na objednávku
Odosielame za 17-27 dní
66.76
The research work was conducted to understand the morphological and physiological mechanisms of salt...

Informácie o knihe

Autor
Jazyk
Angličtina
Väzba
Kniha - Brožovaná
Vydalo
2010
Stránok
172
EAN
9783639255737
ISBN
3639255739
Enbook ID
06833017
Vydavateľ
Hmotnosť
259
Rozmery
152 x 229 x 10

Kompletný popis

The research work was conducted to understand the morphological and physiological mechanisms of salt tolerance in tomato. The genotypic responses of 72 tomato genotypes to salinity have been compared using absolute and relative values measuring shoot and root lengths, and their fresh weights. As the relative/absolute root length had the highest heritability among all the four traits therefore it was used to select salt tolerant (LA2661, CLN2498A, CLN1621L, BL1176, 6233 17870) and non-tolerant genotypes (17902, LO2875 and LO4360). The differing salt tolerance of these genotypes was also verified by analysing Na+, K+ contents and K+/ Na+ ratio. The tolerant and non-tolerant genotypes were grown to maturity to see whether or not the selected genotypes maintained their degree of salt tolerance. The data of F1 hybrids between six tolerant and three non-tolerant parents under normal and saline conditions were collected and analysed to determine the gene action involved in the expression of these characters. The estimates of GCA, SCA and heterosis were also made for various morpho-physiological characters to select the combinations better than parents.

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