Asian Journal of Bio Science

K. Ananthi ¹, M. Karuppaiya ², T. Anand ³, M. Gomathy ⁴

Affiliations
1 Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN
2 Department of Agricultural Entomology, C.C.S. Haryana Agricultural University, Hisar (Haryana), IN
3 Cotton Research Station, Veppanthattai (T.N.), IN
4 Maize Research Station, Vagarai, Palani (T.N.), IN

Abstract

Continuous adaption of cereal-based cropping system has necessitated other alternatives such as pulses, which constitute a major part in agricultural economy of India. An experiment was conducted at Millet Breeding Station, TNAU, Coimbatore during Kharif (July, 2006 - October, 2006) in CO 6 green gram with nine different treatments. The yield and yield components were significantly increased by the application of chemicals and bioregulators. Various yield components such as days to 50 per cent flowering, days to maturity, number of clusters per plant, number of flowers per plant, number of pods per cluster, number of pods per plant, fertility co-efficient, number of seeds per pod, pod weight per plant, seed weight per plant, seed - pod ratio, pod length, hundred seed weight, grain yield per plot, grain yield per hectare and harvest index were favorably enhanced by the foliar spray of 0.1 per cent humic acid with 0.1 ppm brassinosteroid treatment.

Keywords

Bio Regulators, Greengram, Yield.

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K. Ananthi ¹, H. Vijayaraghavan ¹

Affiliations
1 Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore (T.N.), IN

Abstract

Water stress adversely affects both yield and fibre quality of cotton (Gossypium spp L.). A study was conducted to determine the relative water content (RWC) and drought tolerant index (DTI) of cotton plants under water stress in cotton. The experiment was conducted by adopting Factorial Randomized Block Design with three replications. The treatments comprised of water stress imposed at vegetative, squaring and boll development stages of crop growth. In case of drought tolerant genotype, the leaves maintained higher RWC and photosynthetic activities under water stress than that of drought sensitive genotype. Prolonged water shortages virtually affect all the metabolic processes and often result in severe reductions in plant productivity.

Keywords

Relative Water Content, Yield, Drought Tolerant Index.

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