All parameters, except main branch number and 100 grain weight were lower in 2018 compared to 2019 (Table 2, 3 and 4). All observed parameters were effected from phosphorus (P) doses. Highest values for all parameters were obtained from 60 kg ha
-1 P
2O
5 but further dose (60 kg ha
-1 P
2O
5) resulted with reduction from top values for all parameters (Table 2, 3 and 4).
Two years’ average plant height values were lowest (51,25 cm) at control (0 kg ha
-1 P
2O
5) application and highest (55,91 cm) at 60 kg ha-1 P
2O
5 application dose (Table 2). Average plant height values in 2018 and 2019 were 53,14 cm and 53,85 cm, respectively. Two years average first pod height values were lowest (29,17 cm) at control (0 kg ha
-1 P
2O
5) application and highest (35,98 cm) at 60 kg ha
-1 P
2O
5 application dose (Table 2). Average first pod height values in 2018 and 2019 were 31,91 cm and 33,51 cm, respectively.
Averages of two years’ main branch number values were lowest (2,10 and 2,27 piece plant
-1) at control (0 kg ha
-1 P
2O
5) and 30 kg ha
-1 P
2O
5 applications, respectively. This parameter was highest (2,97 piece plant
-1) at 60 kg ha
-1 P
2O
5 application dose (Table 2). Averages of two years flower number per plant values were lowest (39,00 piece plant
-1) at control (0 kg ha
-1 P
2O
5) application and highest (57,86 piece plant
-1) at 60 kg ha
-1 P
2O
5 application dose (Table 3). Average flower number per plant values in 2018 and 2019 were 45,0 piece plant
-1 and 51,33 piece plant
-1, respectively.
Two years’ average pod number per plant values were lowest (18,87 piece plant
-1) at control (0 kg ha
-1 P
2O
5) application and highest (27,92 piece plant
-1) at 60 kg ha
-1 P
2O
5 application dose (Table 3). Average pod number per plant values in 2018 and 2019 were 22,45 piece plant
-1 and 24,51 piece plant
-1, respectively. Two years’ average grain number per plant values were lowest (18,00 piece plant
-1) at control (0 kg ha
-1 P
2O
5) application and highest (27,33 piece plant
-1) at 60 kg ha
-1 P
2O
5 application dose (Table 3). Average grain number per plant values in 2018 and 2019 were 21,62 piece plant
-1 and 23,80 piece plant
-1, respectively.
Averages of two years 100 grain weight values were lowest (29,92 g) at control (0 kg ha
-1 P
2O
5) application and highest (33,41 g) at 60 kg ha
-1 P
2O
5 application dose (Table 4). Averages of two years grain yield values were lowest (969 kg ha
-1) at control (0 kg ha
-1 P
2O
5) application and highest (1565 kg ha
-1) at 60 kg/ha P
2O
5 application dose (Table 4). Average grain number per plant values in 2018 and 2019 were 1199 kg ha
-1 and 1328 kg ha
-1, respectively.
Values for plant height, first pod height, flower number per plant, pod number per plant, grain number per plant and grain yield parameters were lower in 2018 compared to 2019 (Table 2, 3 and 4). In 2018, monthly average temperatures were higher and precipitation were lower in 2018 compared to 2019 (Table 1). Hot and drought conditions in 2018 found reflection in these yield related parameters. High temperature and drought are major limiting factors for chickpea production and growth as mentioned by Ceylan
et al. (2013). Chickpea is a heat sensitive crop hence its potential yield is considerably reduced under high temperatures exceeding 35°C
(Kaushal et al., 2011) and heat damages chickpea crop at its both vegetative and reproductive stages
(Kumar et al., 2012). Chickpea is a crop commonly grown in semi-arid tropics and Mediterranean regions, its yield gets affected by abiotic stresses with drought alone being responsible for up to 50% annual loss of yield
(Kumar et al., 2019). Terminal drought stress leads to substantial annual yield losses in chickpea
(Sivasakthi et al., 2018).
All observed parameters were effected from phosphorus (P) application doses. Highest values for all parameters were obtained from 60 kg ha
-1 P
2O
5 but further dose (60 kg ha
-1 P
2O
5) resulted with reduction from top values for all parameters (Table 2, 3 and 4). In a pot trial with four chickpea genotypes, with sand-soil mixture media containing low available phosphorus, plants were water-stressed or well-watered at the reproductive stage in the study of
Sharma et al., (2021) and determined that water stress reduced shoot growth of chickpeas. Phosphorus deficiency in soils is a major factor reducing chickpea yields
(Ditta et al., 2018; Israr et al., 2016).