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Cold tolerance in rice cultivation by Pranab Basuchaudhuri

By Pranab Basuchaudhuri

Rice is the staple nutrition for greater than half the world's inhabitants, but chilly temperatures throughout the cropping interval reason an important lack of yield. to deal with the world's expanding inhabitants, it's important to increase excessive yielding rice kinds which are tolerant to abiotic rigidity stipulations, comparable to drought, salinity, and chilly. This ebook offers a transparent figuring out of chilly tension in rice within the hopes that it'll offer perception to the topic for extra learn in order that rice vegetation could be grown successfully in chilly areas with excessive productivity.

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There is a controversy about the effect on tillering in relation to temperature within the range. A number of researchers reported that the number of tillers increased with decreasing temperature. Among them Matsushima et al. (1966) noted that low temperature is not favourable to the elongation of tillers. Yoshida (1973) suggested that tillering of rice plant should be considered in terms of interaction between light intensity, temperature, and carbohydrate metabolism. Relatively low temperature (19°C) in the early stage of development had an important effect on the sprouting of tillers, and this effect remained as an after effect of temperature during the subsequent stage of development determining tillering pattern.

Studies with low temperature germinability with a double haploid rice (DH) population with 198 lines derived from anther culture of F1 hybrid with indica line Zenshan 97B and a perennial japonica AAV002863 was used. 1%, while DH population ranged from 0 to 100% at 15ºC after 6 days (Fig. 7). Proteases hydrolyze storage proteins to provide precursors for perpetuating species. The protease activity of brown rice increased sevenfold during 7 days of germination. It is highest 21 Cold Tolerance in Rice Cultivation 30 Zhenshan 97B 25 No.

Similar observations were made in the rice roots fed with sucrose, indicating that at least partially low temperature has the same effect as carbon compounds on the modulation of nitrogen metabolism (Lu et al. 2005). Polyamines are ubiquitous low molecular weight aliphatic that are involved in regulation of plant growth and development (Martin–Tanguy 2001). Because of their polycationic nature at physiological pH. Polyamines are able to interact with proteins, nucleic acids, membrane phospholipids and cell wall constituents, thereby activating or stabilizing these molecules.

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