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Tillers per Plant
Tillers per plant have evolutionary significance (LARIK
1978) and is important from breeders point of view because
of its direct influence on crop yield (SHUKLA 1974).
Application of nitrogenous fertilizers results in increased
number of tillers per plant.
Analysis of variance (Table 3) for
this character did not exhibit any significant difference
for cultivar and fertilizer level. Hence all the cultivars
had a similar tendency of producing tillers at all
fertilizer levels. Maximum tillers per plant were recorded
at F2 (156.95 nkg/ha+78.47
P2O5 kg/ha) Table
2. Similar results were reported by RAJPUT (1968) who
observed that fertilizer applications do not necessarily
enhance the number of tiller in wheat.
Yield Characters
Analysis of variance for grain yield per plot, biological
yield and harvest index show that highly significant
differences were present in cultivars for the grain yield
and harvest index and non-significant differences for
biological yield. However, Mutant-5 gave medium grain yield
and higher harvest index whereas, M-35 gave lowest harvest
index, grain yield and highest biological yield. However, at
F4 (112.10 nkg/ha + 56.05
P2O5 kg/ha) highest grain yield,
biological yield and harvest index (Table
2) were obtained. At maximum input of fertilizers
decline in grain yield was noted. Such decrease at higher
input has already been noted by RAJPUT (1968).
It is concluded that fertilizer dose with 112.10nkg/ha+56.05
P2O5 kg/ha should be recommended for
getting maximum economic and biological yield in winter
wheat cultivars under other optimum cultural
requirements.
References
BOROJEVIC, K. & S. BOROJEVIC, 1972. 'Induced mutations
and plant improvement' IAEA, Vienna : 237.
GUSTAFFSON, A.A. HAGBERD, G. PERSSON & K. NIKLUND, 1971.
Ther. Appl. Gent. H1 : 239.
LARIK, A.S. 1978. Genet. Agr. 32 : 237-244.
LARIK, A.S., H.M.I. HAFIZ & M.B. KUMBHAR, 1980. Wheat.
Inf. Serv. 51 : 19-23.
RAJPUT, F.K. 1968. Thesis Agri. Coll. Tandojam.
SCARASCIA-MUGNOZZA, 1970. In manual on mutation breeding.
IAEA, Vienna p. 1555.
SHUKLA, G.C. 1974. In Rice Comm. News letter 23 :
29-40.
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