dc.contributor.author |
LIAQAT ALI |
|
dc.contributor.author |
MUHAMMAD ASHRAF |
|
dc.contributor.author |
MUHAMMAD MAQBOOL |
|
dc.contributor.author |
RASHID AHMAD |
|
dc.contributor.author |
AHSAN AZIZ |
|
dc.date.accessioned |
2023-01-05T09:23:07Z |
|
dc.date.available |
2023-01-05T09:23:07Z |
|
dc.date.issued |
2013-02-16 |
|
dc.identifier.citation |
Ali, L., Ashraf, M., Maqbool, M., Ahmad, R., & Aziz, A. (2013). Optimization of soil K: Na ratio for cotton (Gossypium hirsutum L.) nutrition under field conditions. Pakistan Journal of Botany, 45(1), 127-134. |
en_US |
dc.identifier.issn |
2070-3368 |
|
dc.identifier.uri |
http://142.54.178.187:9060/xmlui/handle/123456789/15748 |
|
dc.description.abstract |
Adequate potassium (K) supply is crucial for cotton growth and development. However, sodium (Na) can share
some functions with K. In present study, we investigated the effects of replacing K with Na at different ratios on growth, ionic relations and yield as well as yield attributes of two cotton varieties differed in K use efficiency. Different levels of K and Na giving K: Na ratios of 3.5: 1 (control), 3.75: 1, 4: 1, 4.25: 1, 4.5: 1, 2.8: 1, 3: 1, 3.2: 1, 3.4: 1, 3.6: 1 were arranged in triplicates according to randomized complete block design under natural field conditions. Results revealed that maximum seed cotton yield was obtained at K: Na ratio of 3.4: 1 followed by 3.6: 1 in both cotton varieties. However, NIBGE-2 manifested greater seed cotton yield than MNH-786. The significant (p≤0.05) positive correlation was found between number of bolls plant-1 and seed cotton yield (R2
= 0.62 for NIBGE-2 and R2 = 0.64 for MNH-786) determined at different levels of K and Na. Leaf K: Na ratio also varied significantly (p≤0.05) due to main effects of K, Na, varieties and their interactions. Maximum leaf K: Na ratio was shown by NIBGE-2 with 270 kg K ha-1+60 kg Na ha-1 at ratio of 4.5: 1 followed by 255 kg K ha-1+60 kg Na ha-1 at ratio of 4.25: 1. Although fiber quality of both cotton varieties were markedly influenced by different ratios of K: Na, however these differences between treatments and varieties were not consistent. There was a significant positive correlation between K concentration and fiber length (R2 = 0.97 for NIBGE-2 and R2 = 0.98 for MNH-786). Our results suggested that cotton growth and yield could be improved by adding appropriate amounts of K and Na. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Karachi: Pakistan Botanical Society |
en_US |
dc.title |
OPTIMIZATION OF SOIL K: NA RATIO FOR COTTON (GOSSYPIUM HIRSUTUM L.) NUTRITION UNDER FIELD CONDITIONS |
en_US |
dc.type |
Article |
en_US |