| All the triticale lines exhibited significantly lower starch content,
whereas, for fat content lines ; TL202 (2.70), TL520 (2.40), DTS580 (2.45),
THS-7 (2.50) and THS-8 (2.40) were superior to wheat variety WH-157 (2.00).
In confirmity with the findings of RUCKMAN et al. (1973), average
protein content in triticale (12.56) was almost equal to wheat (12.80).
However, TL403 (16.20) and THS-8 (14.00) showed significantly higher grain
protein content than wheat checks. Mean grain yield of triticale lines (322.25
g) was significantly lower than wheat checks (377.66 g). But lines TL403
(418.48 g) and THS-8 (452.10 g) were significantly superior to wheat checks,
while, UPT77017, DTS10-1, TL419 and THS-5 were at with wheat checks. For
bridging protein-calorie gap, grain protein production per unit area is
to be increased (BHATIA 1975). For that matter, TL403 (67.79) execelled
wheat variety WH-157 (57.49). Progerss in triticale is hampered because of low genetic variation for grain quality attributes, particularly among selected elite lines. This fact is also corroborated by invariably low to moderate of pcv and gcv (Table 1). High heritability coupled with high genetic advance indicates that the character is governed by additive type of gene action (PANSE 1957) and in such cases simple selection should prove effective. In present study, though heritability (broad sense) was high to moderate, being highest for 1000 grain weight, followed by starch content and grain crushing hardness, yet low genetic advance, in general, indicates that simple selection would not be much effective. Moreover, low gcv warrants for increasing spectrum of variation through multiple crossing. In that light, genotypes ; TL403, TL419, THS-4, THS-8, THS-2 and DTS 580 merits consideration for their inclusion in hybridization programme followed by intense selection so as to exploit genetic potential of these elite lines in order to synthesize better triticale genotypes. References AUSTIN, A and A. RAM 1971., In "Studies on chapati making qualities of wheat". (Ed. Wadhwani, A.M.) ICAR, New Delhi. BAKER, R.J., 1977. Crop Sci., 17 : 960-962. BHATIA, C.R., 1975. Euphytica, 24 : 789-794. CLEGG, K.M., 1956. J Sci. Fd. Agri., 2 : 40-44. DUNDUCK, I.G. and M.F.,Ermakova, 1978., Siebst SKL nauck., 1 : 15. PANSE, V.G. 1957. Indian. J. Genet., 17 : 318-328. RUCKMAN, I.E., F.P. ZSCHIELE Jr and C.O. QUALSET 1973., J. Agri. Fd. Chem., 21 : 687-704. |
| <-- Back |