Скачать или смотреть Bacterial Panicle blight in Rice!, ਕੀ ਪੰਜਾਬ ਵਿੱਚ ਬੈਕਟੀਰੀਅਲ ਪੈਨਿਕਲ਼ ਬਲਾਈਟ ਦਾ ਹਮਲਾ ਹੋਇਆ ਹੈ

ਪੰਜਾਬ ਦੇ ਕੁਝ ਜਿਲਿਆਂ ਵਿੱਚ ਝੋਨੇ ਦੇ ਵਿੱਚ ਖਾਸ ਤਰ੍ਹਾਂ ਦੇ ਲੱਛਣ ਆ ਰਹੇ ਹਨ। ਕਿਸਾਨ ਡਰੇ ਹਨ ਕਿ ਕਿਤੇ ਇਹ ਬੈਕਟੀਰੀਅਲ ਪੈਨਿਕਲ ਬਲਾਈਟ ਤਾਂ ਨਹੀਂ ਹੈ। ਆਓ ਇਸ ਸਬੰਧੀ ਸਮਝਦੇ ਹਾਂ।
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BPB is caused mainly by Burkholderia glumae, but there are probably a couple of other related species of bacteria involved as well. The disease is known as bacterial grain rot in Asia.
While bacterial panicle blight is primarily seedborne, major symptoms occur at heading and favorable weather has to be present during the growing season, making prediction of the disease very difficult. BPB can cause seedling death, but little is known about this phase of the disease in the U.S.
Disease Symptoms
Infected panicles mostly have blighted kernels that first appear white to light gray with a darkbrown margin on the bottom third of the developing grains (Figure 1, see inside). The rachis or panicle branches stay green during early infection (Figure 2). Later, the kernels turn strawcolored and may further darken toward the end of the season with growth of secondary fungi (Figure 3). Heavily infected panicles remain upright due to blanking (Figure 4). Heavily infected kernels also show aborted seeds with a dark basal rot (Figure 5). Certain tillers may develop a dark brown lesion on the flag leaf sheath (Figure 6). Such tillers may have severe panicle damage (Figure 7). BPB can be confused with wind damage (Figure 8), water stress (Figure 9) or other environmental factors and insect damage, for instance stem bor