Shoots, root and flowering time studies in chickpea (Cicer arietinum L.)<br>under two moisture regimes

Abstract

The shoot and root behavior and flowering time of two chickpea genotypes (kabuli and desi types) was examined under well watered and moisture stress conditions in split drainpipes in 2006. The data on shoot and root fresh weight and dry weight and plant and soil moisture percentage were recorded at the late flowering stage. The observations on root and soil moisture were recorded at three depth level with gap of 15 cm each. The results revealed that both the plant types of chickpea behaved alike except for days to flower initiation which was significantly different in the two varieties. Root and Shoot fresh weights were significantly greater in well watered conditions, but on the other hand, there was no any significant effect of moisture stress on shoot dry matter content, suggesting that higher weight of fresh shoot was due to high uptake of water under well watered conditions which evaporated after drying. Fresh root weight was only significantly affected at 30 cm depth level due to varieties and 45 cm depth level due to treatments. The root moisture percentage was significantly affected at 15, 30 and 45 cm depth level due to varieties × treatments interaction, varieties and treatments, respectively. There found no significant difference in dry weight among the rooting depths. The cultivar Sheenghar-2000 retained higher root moisture content (7.57%) at 15 cm depth level under well watered.

Growth and yield in chickpea (Cicer arietinum L.) genotypes in response to water stress

“…Dry weight of root followed by stress at flower initiation stage (T 3 ). Our findings are in agreement with Yaqoob et al (2012), who suggested that moisture stress at pre flowering stage being harmful and detrimental is the most critical stage for screening chickpea germplasm under drought prone conditions. Significant reductions occurred in plant height and number of branches under varied stress treatments.…”

Effects of water stress applied at different phenological phases of chickpea (Cicer arietinum L.)

“…This might be due to decrease in cell division and cell enlargement under water stress (Manivannan et al, 2007). In agreement with this, Yaqoob et al (2012) suggested that moisture stress at vegetative stage being harmful and detrimental in the most critical stage for screening chickpea germplasm under drought prone conditions. Shamsi et al (2010) also found that vegetative water stress in chickpea reduced plant height and branch productions significantly.…”

Avaliação de genótipos de grão de bico em cultivo de sequeiro nas condições de Cerrado

“…Na comparação dos genótipos para floração (Tabela 2), foi observada a formação de três grupos distintos: o primeiro grupo com 36 a 39 dias (Cícero, Jamu 96, Nacional 29, Joly, BG 1392, Astro e Blanco Sinaloa 92); o segundo grupo com 46 a 55 dias (ICCV 10, FLIP06-155C, FLIP02-23C, ILC 1929, FLIP03-35C e FLIP06-34C); e o terceiro grupo com 57 a 61 dias, sendo os mais tardios (FLIP03-109C e Marrocos). O período vegetativo pode afetar diretamente a produção de grãos em condições de estresse (Yaqoob et al, 2012). Assim, precocidade tem sido utilizada como critério de seleção de genótipos tolerantes ao estresse hídrico em outras partes do mundo (Mbarek et al, 2009).…”