Pak. J. Bot., 38(2): 331-340, 2006. | Back to Contents | ||||
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Updated: 09-07-09 | ||||
EFFECT OF VARIOUS LEVELS OF NITROGEN FERTILIZER ON THE YIELD AND YIELD ATTRIBUTES OF PEA (PISUM SATIVUM L.) CULTIVARS ABDUL KABIR KHAN ACHAKZAI AND MUHAMMAD IQBAL BANGULZAI
Abstract: A field experiment for two consecutive growing years (i.e., 1999-2000
& 2000-2001) was conducted on four pea cultivars viz., arkel, climax,
green feast and olympia in response to different levels of applied N
fertilizer under the climatic conditions of district Mastung, Balochistan.
Fertilizer treatments (T1 to T7) were applied
@ zero (control); 25; 50; 75; 100 and 125 kg N ha-1 plus
a constant dose of P2O5 @ 60 kg ha-1
and K2O @ 40 kg ha-1 in all treatments (except
control). These N treatments were applied to each sub-plot (except T1
and T2) in two halves. The first one was applied at
the time of initiation of flowering, while the 2nd one at
the time of pod formation. Results showed that all mentioned components
of pea cultivars (except pod length and protein contents) and most of
their response toward applied rate of fertilizers were found highly
significant (P<0.01). The maximum fresh pod yield plant-1
(143.54 g), fresh pod yield ha-1 (11908.50), number of fresh
pod plant-1 (20.65), fresh pod length (9.06 cm), 1000 dry seed weight
(240.13 g) and protein content (223.6 g kg-1) of air dried
seeds were recorded in fertilizer dose of 100+60+40 kg NPK ha-1.
Results also showed significant differences for all the parameters studied,
and cultivar climax were found statistically at par in respect of above
mentioned entries (except protein contents). It was further revealed
that all mentioned attributes (except protein contents) were significantly
(P<0.05) and positively correlated with fresh pod yield. Therefore,
they can be used a suitable selection criteria for the yield in pea
cultivars. Department of Botany, University of Balochistan, Quetta. Government Degree College Mastung, Balochistan, Pakistan. Email: profakk@yahoo.com |
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