Abstract:
A field experiment was conducted for 2 consecutive growing years on few growth characteristics of four pea cultivars
viz., Arkel, Climax, Green Feast and Olympia in response to different levels of N fertilizer under the climatic conditions of
district Mastung, Balochistan. Six N fertilizer levels (0, 25, 50, 75, 100 and 125 kg N ha-1) plus a constant dose of 60+40 kg
P2O5 & K2O ha-1 were prepared, and designated as T1 to T7, respectively. These N levels were applied to each sub-plot
(except T1 & T2) in two split doses first at the time of flowering and second at the time of pod formation to quantify how
much N fertilizer’s required by different pea cultivars to realize the highest growth and yield. Results exhibited that in
response to various levels of added N fertilizer, all mentioned growth attributes were found to be highly significant
(P<0.01). However, cultivars response was found significant only for secondary branches plant-1, plant height and shoot
moisture contents. A maximum number of primary branches plant-1 (6.94), secondary branches plant-1 (10.72), plant height
(69.77 cm), number of leaves plant-1 (19.75), leaf length (11.81 cm) and shoot moisture contents (571.0 g kg-1) was recorded
with application of 100 kg N ha-1. The interaction between fertilizer and pea cultivars was found non-significant for all
mentioned attributes in the trial. Results further revealed that all growth parameters were slightly to highly significant and
positively correlated among themselves as well as with their fresh pod yields. These attributes could be used a suitable
selection criteria for predicting the fresh pod yield and also for breeding purposes in peas
